bluuebunny/crossref_metadata_2025 huggingface dataset:
Model Matematis Massa Buah Markisa Manis (Passiflora ligularis Juss) Berbasis Beberapa Sifat Fisik
Authors:   Universitas Andalas, Hafizulhaq Fadli , Andasuryani Andasuryani ,   Universitas Andalas
Published: January 2024

Sifat-sifat fisik dari buah dapat digunakan untuk mendesain sistem maupun mesin yang dapat digunakan dalam proses pascapanen seperti penyortiran dan pengelompokkan. Penelitian ini memiliki fokus dalam mengembangkan model matematis untuk memprediksi massa dari buah markisa manis (Passiflora ligularis Juss) berdasarkan sifat fisiknya. Semua sifat fisik memiliki hubungan yang signifikan terhadap massa (p<0.01). Model matematis dibuat dengan model linier dan kuadratik. Koefisien determinasi dari model menunjukkan tingkat kecocokan dari model. Hasil menunjukkan bahwa model kuadratik memiliki kecocokan yang lebih baik dibandingkan model linier. Model linier terbaik adalah model dengan sifat fisik panjang dengan koefisien determinasi 0.59, sedangkan model kuadratik terbaik adalah model dengan sifat area proyeksi tegak lurus panjang dengan koefisien determinasi 0.62. Nilai koefisien determinasi dari semua model yang berada di sekitar 0.6 menunjukkan bahwa model matematis yang dibuat tergolong moderat.
PENGARUH VARIABILITAS TOPOGRAFI DAN SIFAT FISIK TANAH TERHADAP PRODUKSI KENTANG DI KECAMATAN BUMIAJI, KOTA BATU
Authors: Andhika Yosi , Sudarto Sudarto , Widianto Widianto
Published: January 2024

Soil erosion causes a loss of nutrients in the soil and is evident in the agricultural areas of Batu City, primarily due to the steep or very steep topography. So it will affect the level of production. Determination of the effectiveness of observation was based on four classes of slope: 0-8%, 8-15%, 15-30%, and >30% at various altitudes: <1,100 m, 1,100-1,300 m, 1,300-1,500 m, 1,500-1,700 m, and >1,700 m above sea level 40 observation points. Geostatistical analysis with ArcMap software was conducted to determine the pattern of semivariograms. The results of this study indicated that the slope, altitude, and organic matter affect the yield of potatoes. The resulting formula is y = 11.845 - 0.258x1 + 0.007x2 + 2.454x3, where y is the potato productivity, x1 is slope, x2 is altitude, and x3 is the organic C, with r value is 0.87 and R2 value = 0.74. The highest potential production of potatoes in Bumiaji reached 33.06 t ha-1, and the lowest was only 7.12 t ha-1. Available land planted with potatoes can produce  35,891 t of potato, with average productivity reaching 24.6 t ha-1.
EVALUASI PUPUK NITROGEN LEPAS LAMBAT PADA TANAMAN JAGUNG (Zea mays L.)
Authors: Agustina Dwi Ulya , Rahman Fahmi Arief , Supriyadi Slamet , Wasonowati Catur
Published: January 2024

Slow-release fertilizer can provide nutrients more efficiently; nutrients are released and available slowly so that they have the potential to be absorbed by plants. This study aimed to investigate the effects of several slow-release N fertilizers on the growth and yield of corn (Zea mays L.) in sandy soil. This research was carried out in the greenhouse and laboratory of the Faculty of Agriculture, University of Trunojoyo Madura. The experiment was arranged on a non-factorial completely randomized design. There were six treatment levels, namely P0 (uncoated urea fertilizer, applied into one application), P1 (uncoated urea fertilizer, split into three times applications), P2 (urea fertilizer with bentonite coating, P3 (urea fertilizer with biochar coating), P4 (urea fertilizer with coal coating), and P5 (urea fertilizer with biochar compost coating). All coated urea fertilizers were applied one time at the early growth of corn. The results showed that the application of slow-release N fertilizer had no significant effect on plant height, number of leaves, leaf area, cob length, diameter, plant fresh weight, plant dry weight, seed weight per plant, 100 seed weight, and flower age. However, the application of slow-release N fertilizer had a very significant effect on plant height at 42 DAP, the number of leaves at 14 DAP and 56 DAP, and leaf area at 28 DAP and 56 DAP. All coated urea fertilizers were as effective as uncoated urea on the growth and yield of corn.
ANALISIS KESESUAIAN LAHAN UNTUK KAWASAN PERMUKIMAN DI KECAMATAN DAU BERDASARKAN ARAHAN RTRW KABUPATEN MALANG TAHUN 2010-2030
Authors: Kresnajaya Amin , Taryana Didik
Published: January 2024

Dau Sub-district is one of the sub-districts in Malang Regency that functions as a settlement development due to the urban development orientation of Malang City. This research aimed to assess the suitability of settlement land in existing conditions and based on the direction of the Malang District RTRW 2010-2030. This research was conducted using a GIS-based process with the AHP weighting method. The AHP parameters consisted of slope, rainfall, COLE index, land movement vulnerability, flood vulnerability, land use, and distance from roads. AHP processing was carried out using Expert Choice 11 software. The land suitability of Dau Sub-district settlements obtained results: S1 class covering 37,12%; S2 class 26,05%; S3 class 16,48%; N1 class 16,32%; and N2 class 4,03% of the study area. Land suitability for settlements in Dau Sub-district based on the 2010-2030 Malang Regency RTRW obtained results: S1 class covers 39,96%; S2 class 47,08%; S3 class 8,23%; N1 class 4,55%; and N2 class 0.18% of the research area. Referring to the RTRW map with existing conditions, the development of residential land has deviated by 39.25%. Areas with classes S1 and S2, which are suitable classes for the development of residential areas, dominate with an even distribution across all villages in Dau Sub-district. The main inhibiting factors affecting the suitability value are slope and disaster vulnerability.
ANALISIS ERODIBILITAS TANAH DAN HUBUNGANNYA DENGAN PRODUKTIVITAS TANAMAN KOPI DI KECAMATAN WAJAK, KABUPATEN MALANG
Authors: Sholikah Dinna Hadi , Naufal Raihan , Sigit Wicaksono Kurniawan , Soemarno Soemarno
Published: January 2024

Coffee plants (Coffea sp.) are among the most popular plantation crops for farmers in Wajak District. However, the soil condition in Wajak District is dominated by sandy soil, which can trigger soil sensitivity to high erosion potential. A mitigation effort for the declining of coffee production in the Wajak District can be made through the estimation of the soil erodibility index. This study aimed to suspect the soil erodibility index and obtain the relationship of soil erodibility index to coffee production on smallholder coffee plantations in Wajak District, Malang Regency. The methods of determining land boundaries with land map units (SPL) were land use, soil type, and slope. The parameters used were soil texture (M), organic matter (a), structure (b), and permeability (c) to determine erodibility, as well as coffee beans for coffee production analysis. Statistical analysis of data was in the form of correlation tests and data regression tests. The results of the data analysis showed that the highest wet weight of coffee fruit was found in SPL 8 with plantation land use, Typic Hapludands soil type and land slope of 8-15%. The wet weight value of coffee fruit at SPL 8 is 2.18 t ha-1 with an erodibility value of 0.37. While the lowest wet weight of coffee beans was found in SPL 2 with moor land use, Andic Eutrudepts soil type and land slope of 8-15%. The average wet weight value of coffee beans at SPL 2 was 0.12 t ha-1 with an erodibility value of 0.26.
POTENSI PUPUK HAYATI MIKORIZA FUMYCO DALAM MENINGKATKAN PERTUMBUHAN TANAMAN AKASIA (Acacia mangium Willd.) DI NURSERY
Authors: Hazra Fahrizal , Istiqomah Fatimah Nur , Firdaus Ibrahim Dhiaulhaq
Published: January 2024

Akasia (Acacia mangium Willd.) merupakan salah satu jenis tanaman yang memiliki prioritas unggul dalam pengembangan hutan tanaman industri di Indonesia. Pemberian pupuk hayati dapat menjadi salah satu alternatif dalam memperbaiki, meningkatkan, dan mempertahankan kualitas tanah sehingga mampu menunjang pertumbuhan, hasil, serta kualitas berbagai tanaman. Penelitian ini bertujuan mengetahui pengaruh pupuk hayati mikoriza terhadap pertumbuhan tanaman akasia di nursery, menganalisis infeksi akar dan jenis spora mikoriza, serta mengkaji pengaruh pemberian pupuk hayati mikoriza terhadap sifat kimia dan biologi tanah. Penelitian ini menggunakan rancangan acak lengkap faktor tunggal dengan enam taraf perlakuan dan dua belas ulangan, sehingga satuan percobaan adalah 72 polybag. Perlakuan pengujian pupuk hayati berdasarkan Peraturan Menteri No. 1 Tahun 2019 antara lain kontrol (tanpa pupuk NPK dan pupuk hayati); 1 NPK; 1 pupuk hayati; 1 NPK standar + 1 pupuk hayati; 3/4 NPK + 1 pupuk hayati; serta 1/2 NPK + 1 pupuk hayati. Perlakuan kombinasi 1 NPK standar + 1 pupuk hayati memberikan hasil pertumbuhan paling baik pada parameter tinggi, jumlah daun, dan berat kering tajuk (BKT), sedangkan kombinasi 1/2 NPK + 1 pupuk hayati paling baik pada parameter diameter batang dan berat kering akar (BKA). Nilai Relative Agronomic Effectiveness (RAE) pada perlakuan 1 NPK + 1 pupuk hayati menunjukkan hasil yang paling efektif secara agronomi.
PEMODELAN PREDIKSI KONVERSI PENGGUNAAN LAHAN BERBASIS ANN-CA DI WILAYAH PERI-URBAN KABUPATEN SLEMAN
Authors: Sarastika Tiara , Yudhistira Saraswati  , Riska Aprilia Triyadi  , Yusuf Susena
Published: January 2024

The development in the city has caused urban areas to experience significant growth due to increased activity. One of the visible changes is the change in the use of vegetated land for built-up land. The research location is in a peri-urban area of Depok and Mlati subdistrict, Sleman Regency. This research analyzed land use conversion in 2015-2020 and modeled land change predictions for the next 20 years (2025-2045) using Artificial Neural Network - Cellular Automata (ANN-CA). The ANN method used multiple output neurons to determine the probability of land use transition. CA was used to model land use change by applying transition probabilities. The source of land use data came from extracting SPOT images, and then the modeling process used QGIS Desktop 2.18.11 on the MOLUSCE plugin. The results showed that the peri-urban area experienced a decrease in agricultural and livestock land by 152.62 ha (2.52%) while building land increased by 148.74 ha (2.46%). The 2025-2045 land use conversion prediction shows that the reduction in agricultural land, plantations, and livestock will continue, and the land area for buildings and roads will increase.
IDENTIFIKASI KARAKTERISTIK POLA SPASIAL HULU HILIR PADI ORGANIK DI KABUPATEN SERDANG BEDAGAI
Authors: Annajmi Nabila , Tjahjono Boedi , Anwar Syaiful
Published: January 2024

Organic agriculture must be applied in an integrated manner, from upstream to downstream, forming a system. This subsystem is part of the market-oriented agribusiness concept by paying attention to quantity, quality, and continuity to gain income and agricultural productivity profits. This study aimed to look at the development of organic rice farming in the Serdang Bedagai Regency from a regional (spatial), agribusiness, and economic point of view. ANN analysis involves distance variables between agribusiness subsystems, road infrastructure, and transportation. The results of the analysis showed that the spatial pattern of organic rice formed in the Serdang Bedagai Regency was distributed, especially in Lubuk Bayas Village and Tanah Merah Village, with each having a value of R = 2.81 (R> 1) and R = 6.15 (R>1). Pematang Setrak Village had a clustered spatial pattern or had a value of R = 0.12 (R<1). This shows that the closer the locations between the subsystems are, the more profitable it is, thus saving production and transportation costs. The gains obtained were strengthened by the results of the R/C ratio produced, namely Tanah Merah Village with a value of 1.36, Lubuk Bayas Village with a value of 1.39, and Pematang Setrak Village with a value of 1.48. This means that farming activities are pretty efficient.
ESTIMASI KANDUNGAN BAHAN ORGANIK TANAH DI LAHAN TANAMAN JERUK, KECAMATAN DAU, KABUPATEN MALANG MENGGUNAKAN INDEKS VEGETASI DAN SISTEM INFORMASI GEOGRAFIS
Authors: Saputra Muhammad Fiqriansyah Wiradirga , Munir Mochammad
Published: January 2024

Citrus plants (Citrus sp.) are most plants that grow in Petungsewu Village, Dau District. The decreased productivity of citrus plants causes the availability of citrus plants also to decrease. This needs to be increased to meet citrus plants' needs. The influence of soil organic matter is the main factor causing a decrease in the productivity of citrus plants in Petungsewu Village, Dau District. Therefore, it is necessary to estimate soil organic matter using the NDVI vegetation density index to obtain adequate and efficient results. Reliability testing was also carried out to know the accuracy level of the estimates made. The research was conducted at the Citrus Plantation and Subtropical Fruit Research Institute in Petungsewu Village, Dau District, Malang Regency. Estimation of soil organic matter using the NDVI vegetation density index showed an accuracy rate of 81.1%. The results of the accuracy analysis were strengthened by the presence of a paired t-test with a value of t = 0.01 and a value of p = 0.991.
STATUS HARA N, P DAN K PADA TANAH SAWAH IRIGASI DI KAPANEWON PRAMBANAN, KABUPATEN SLEMAN, DAERAH ISTIMEWA YOGYAKARTA
Authors: Wibawati Widya , Mulyanto Djoko , Munawar Ali
Published: January 2024

The difference in the productivity level of paddy is caused by nutrient availability and land management. This study aims to determine the chemical properties of soil, especially elements of N, P, and K, in soils that have different levels of rice productivity. The methods used in this study are survey methods and laboratory analysis. Purposive sampling was conducted based on the productivity of medium and high-status rice fields. Based on the level of productivity of rice fields, there are 18 sample points, which are composite into 7 samples and analyzed in the laboratory. The results showed that several chemical properties in areas with high productivity levels had an average availability of total N nutrient status of 0.17% (low), potential P 56.5 mg 100 g-1 (high), potential K 17 mg 100 g-1 (low), organic C by 2.75% (medium), cation exchange capacity (CEC) 11.52 cmol(+)kg-1 (low) while in areas with medium productivity had an average total N nutrient of 0.23% (medium), potential P 38.33 mg 100 g-1 (medium), potential  K 72 mg 100 g-1 (very high), organic C 3.23% (high), CEC 33.06 cmol(+)kg-1 (high) and has a soil pH of 6.1 (slightly acid) respectively. High-productivity areas have low to medium soil fertility, while medium-productivity areas have medium to high soil fertility. Rice field management factors are suspected to cause differences in rice productivity levels.
KARAKTERISASI INDIKATOR KESESUAIAN LAHAN KOMODITI NANAS LOKAL (Ananas comosus) KABUPATEN MAJENE
Authors: Sanjaya Muhammad Fahyu , Arham Ihsan , Irlan Irlan , Mahendra Yusril , Irwansyah Irwansyah
Published: January 2024

Indonesia boasts a high biodiversity, intricately linked to the various ecosystems within its territories. In Majene Regency, West Sulawesi Province, for instance, there is a unique commodity in the form of pineapple, locally known as 'pondang'. One of the efforts to preserve this unique pineapple commodity is to understand the characteristics of the cultivation land that has sustained it over time. This research aimed to characterize the land in the cultivation areas of Majene's local pineapple as fundamental information for farmers to comprehend the plant growth ecosystem and manage the land optimally. The research utilized purposive random sampling based on the cultivation locations of Majene's local pineapple. Observations revealed that the cultivation land conditions for Majene's local pineapple had an average temperature ranging from 25.65 to 29.75 ºC, rainfall between 1,488.05 and 2,820.50 mm, with humidity ranging from 63.38 to 89.00%. Additionally, soil fertility conditions in the research locations indicated high nutrient retention, as shown by slightly acidic to neutral soil pH values and high Cation Exchange Capacity (CEC), although some available nutrients indicated very low to low soil fertility levels, such as potassium. Soil management significantly influenced nutrient availability, soil salinity, and alkalinity in the research locations.
ANALISIS KELAS KEMAMPUAN LAHAN DI SUB DAS BAH BUANGAN, KECAMATAN DOLOK SILAU, KABUPATEN SIMALUNGUN
Authors: Pratama Alvin , Harahap Amru Akbar , Sianturi Stevan Federico
Published: January 2024

Penggunaan lahan digunakan berdasarkan pada pemanfaatan lahan masa kini karena aktivitas manusia yang bersifat dinamis. Pengelompokan dan penggolongan atau klasifikasi agar lahan dapat diperlakukan sebagai unit-unit yang seragam untuk suatu tujuan khusus. Klasifikasi kemampuan lahan berupa sebuah upaya untuk mengevaluasi lahan untuk penggunaan tertentu, termasuk di Sub DAS Bah Buangan yang relatif curam sehingga banyak ditemukan lahan-lahan yang longsor. Penelitian ini bertujuan untuk mengidentifikasi dan membandingkan temuan kelas kemampuan lahan berdasarkan referensi dengan perhitungan pembanding. Metode penelitian yang digunakan adalah metode deskriptif kuantitatif melalui studi pustaka dan metode arithmatic matching untuk mendapatkan faktor yang dominan sebagai penentu kelas kemampuan lahan.. Berdasarkan hasil penelitian diperoleh kesimpulan bahwa terdapat 11 satuan lahan di Sub DAS Bah Buangan, Kecamatan Dolok Silau yang memiliki kelas berbeda-beda. Mereka di antaranya satuan lahan AnIP, AnIIP, AnIIIP, AnIVP, LaIIP, LaIVP, AnIIBu, LaVBU, LaIIIH, LaIVH, dan LaVH. Satuan lahan AnIP sangat cocok terhadap sektor pertanian, dan satuan lahan LaVH tidak cocok karena tidak subur.
PENGARUH TUTUPAN LAHAN DAN CURAH HUJAN TERHADAP SIFAT FISIK TANAH SERTA DEBIT MATA AIR DI HUTAN CEMPAKA, PASURUAN, JAWA TIMUR
Authors: Utami Rossi Widhi , Lestariningsih Iva Dewi , Wicaksono Kurniawan Sigit , Anggara Akmaludin Dimas , Lathif Sarifudin
Published: January 2024

Climate change causes forest fires that impact land cover damage, which can cause damage to soil properties and disrupt hydrological characteristics such as loss of spring or discharge depletion. This study aimed to assess the influence of land cover and rainfall on soil physical properties and spring discharge in the Cempaka Forest area. The study was conducted on three land covers, i.e., shrubs, pine, and non-timber forest products (NTFPs) in the Cempaka Forest area, Curah Tangkil Block, Pasuruan Regency, East Java Province. The measured parameters were soil bulk density, permeability, porosity, infiltration, daily rainfall, and spring discharge. Data analysis used analysis of variance (ANOVA) test at a 5% level, correlation test, and regression. The results showed that differences in land cover had no significant effect on soil physical properties. The correlation and regression results between rainfall and spring discharge showed that rainfall influenced spring discharge by 4%. The correlation and regression results in the medium-heavy rainfall categories influenced spring discharge by 38%.
EVALUASI STATUS KESUBURAN TANAH DI MASA REPLANTING PERKEBUNAN KELAPA SAWIT PADA TANAH MINERAL PROVINSI JAMBI
Authors: Ferry M , Asmadi Saad  , Yulfita Farni
Published: January 2024

Appropriate fertilization recommendations are needed to maximize the production of oil palm plants on land that has been used for a long time. This study aimed to determine the status of soil fertility during the oil palm replanting period in Kemang Manis Village, Muara Papalik Sub-district, West Tanjung Jabung Regency, and determine fertilization recommendations according to the needs of oil palm plants based on soil fertility. This study used a survey method; soil samples taken were disturbed soil samples, and sampling was carried out at two depths, namely 0-30 cm and 30-60 cm. Determination of sampling points using stratified random sampling method based on homogeneous land units that were processed based on soil type and slope in the research location. The collected soil samples were analyzed for H, CEC, BS, organic C, P2O5, K2O, and total N. The results showed low fertility status during the oil palm replanting period in the research location. Observations of the soil profile also showed that the O horizon was thin. Fertilization recommendations that must be made to improve soil fertility include adding dolomite fertilizer to increase soil pH value and increasing the availability of N, P, and K elements in the form of Urea, SP36, and KCl. To increase the content of organic materials in the soil, applying oil palm empty fruit bunches can also improve the soil's physical, chemical, and biological properties.
MENINGKATKAN PERTUMBUHAN TANAMAN MENTIMUN (Cucumis sarivus L.) DI TANAH SALIN DENGAN PELINDIAN TANAH DAN PENAMBAHAN AMELIORAN
Authors: Putra Rafii Adhimas Tri , Bowo Cahyoadi
Published: January 2024

This study aimed to assess the impact of combinations of varying soil amendments and water amounts on the leaching water requirement for cucumber growth and production. Saline soil was collected from Banongan, Situbondo, with soil electrical conductivity (EC) of 4-6 dS m-1. A 10 kg soil sifted with a diameter of 2 mm was placed in each mini lysimeter. Leaching was carried out until the soil EC reached below 2 dS m-1. The results showed that soil leaching reduced soil EC from 5 dS m-1 to 1.6-1.8 dS m-1; meanwhile, EC in leachate ranged from 2-2.3 dS m-1. Biochar treatment caused an increase in leaching water requirements. In addition, applying biochar combined with 40 mm day-1 of water produced the highest fruit number. The combination treatment of cow manure 100 g pot-1 (equivalent to 20 t ha-1) and biochar 30 g pot-1 (equivalent to 6 t ha-1) and adding 40 mm day-1 of water during each water application produced the most prominent fruit volume. Furthermore, utilizing 40 mm day-1 of leaching water produced the best number of leaves, fruit weight, length, and fruit circumference.
ANALISIS KESESUAIAN PENGGUNAAN LAHAN TAHUN 2022 TERHADAP RENCANA TATA RUANG WILAYAH KABUPATEN BOYOLALI
Authors: Saifuddin Muhammad , Danardono Danardono
Published: January 2024

Land use is defined as human intervention in natural and human-made resources with the aim of fulfilling spiritual and material needs. Land use is inseparable from the phenomenon of land use change. Boyolali District is certainly not exempt from the phenomenon of land use change. Land use conversion has an impact on the inconsistency between land use and its designated plan. This study aimed to analyze land use changes from 2011 to 2022 and assess the suitability of land use in 2022 with the spatial plan of Boyolali District. This study applied survey and spatial analysis methods. The overlay technique produces maps of land use changes and the suitability of land use in 2022 with the Rencana Tata Ruang Wilayah (RTRW = Regional Spatial Planning) of Boyolali District. The results of the research showed that Kabupaten Boyolali experienced a land use conversion of 210.74 km2. Kecamatan Juwangi had the largest change in land use, covering an area of 30.37 km2, while Kecamatan Banyudono had the smallest change of 1.05 km2. The suitability of land use in 2022 with the Rencana Tata Ruang Wilayah (RTRW = Regional Spatial Planning) of Boyolali District indicates a suitable class covering an area of 797.24 km2, while an unsuitable class covers an area of 297.15 km2.
ANALISIS KORELASI KARAKTERISTIK TANAH (P TERSEDIA, BAKTERI PELARUT FOSFAT, C ORGANIK, DAN KAPASITAS TUKAR KATION) TERHADAP PRODUKTIVITAS JAGUNG DI KECAMATAN CIBUGEL, KABUPATEN SUMEDANG
Authors: Putri Thausy Julia , Sule Marenda , Fitriatin Betty
Published: January 2024

Maize is the main strategic food crop in Indonesia's food supply, but the productivity of maize in Indonesia is still low. Increasing the productivity of maize can be done by understanding information about the characteristics of the soil on maize planting areas. The research aimed to evaluate the relationship of soil biological and chemical characteristics (available P, phosphate solubilizing bacterial population, arbuscular mycorrhizal fungal population, organic C, and cation exchange capacity) on maize plant productivity. The research was carried out in Cibugel District, Sumedang Regency. The research used descriptive survey and comparative methods on 18 soil samples. The maize planting area was obtained based on analysis and overlapping of land units in the form of; slope, elevation, climate and shelled maize production area. Maize planting land is at an altitude of 500-1,000 meters above sea level and with a slope of 10-30%. The results of correlation analysis showed that organic C, cation exchange capacity, and phosphate solubilizing bacteria had a positive correlation with maize productivity, while available P and arbuscular mycorrhizal fungi had a negative correlation. organic C had the highest close relationship with a value of r = 0.43, while the other parameters have a weak relationship.
Roteiro Geoturístico dos Morros Testemunhos – Quarta Colônia Geoparque Mundial Unesco – RS- BR
Authors: Kiefer Ana Paula , Figueiró Adriano Severo
Published: January 2024

Considerando o grande crescimento do geoturismo nos últimos tempos, os conceitos de geoparque, interpretação geopatrimonial e roteiros geoturísticos precisam estar relacionados a fim de promover e divulgar o patrimônio geológico e geomorfológico do Quarta Colônia Geoparque Mundial da UNESCO. Desse modo, a presente pesquisa pretende apresentar o desenvolvimento de um roteiro geoturístico para a porção nordeste do Geoparque, no município de Agudo. Para tanto, a metodologia abrange uma vasta revisão teórica, que envolve a interpretação de imagens e mapas, além da atividade de campo e a geração de produtos cartográficos em laboratório, utilizando o software livre QGis. O percurso proposto foi denominado Morros Testemunhos, com 62 km de extensão, fazendo referência e respeitando as características geográficas que moldam a paisagem da região. São 5 locais de parada descritos, com destaque aos morros testemunhos e à dinâmica fluvial do rio Jacuí. O roteiro criado expressa uma parcela importante do geopatrimônio do território, expresso em termos de estruturas e processos geomorfológicos e pode ser utilizado tanto como ferramenta de divulgação geoturística, quanto como roteiro geoeducativo.
Avaliação quantitativa do valor turístico do Geossítio Pontal da Santa Cruz, Geopark Araripe (Ceará)
Authors: Souza André Henrique de , Silva João Bandeira da , Albuquerque Francisco Nataniel Batista de
Published: January 2024

A geodiversidade é uma das grandes promotoras do turismo nos geoparques, uma importante estratégia para a valoração e conservação dos geossítios. Diante do exposto, o objetivo do presente trabalho é quantificar o valor turístico do geossítio Pontal da Santa Cruz, no Geopark Araripe. Do ponto de vista metodológico, o geossítio foi classificado segundo o interesse principal da geodiversidade como geomorfossítio a partir da metodologia de valoração de mirantes. Como resultado, o geossítio obteve 20 pontos dos 24 possíveis, atingindo a maior pontuação no item sinalização e segurança. Os resultados confirmam informações de campo de que o Pontal se trata do geossítio com o segundo maior fluxo turístico inserindo-se na mesma rota do geossítio Ponte de Pedra e, principalmente, do Museu de Paleontologia Plácido Cidade Nuvens, da cidade de Santana do Cariri, evidenciando a importância da integração da geodiversidade ex situ e in situ.
Diagnóstico do perfil e experiências dos visitantes do Seridó Geoparque Mundial da UNESCO, no NE do Brasil
Authors: Nascimento Marcos Antonio Leite do , Silva Matheus Lisboa Nobre da , Costa Silas Samuel dos Santos , Medeiros Janaína Luciana de
Published: January 2024

A quantificação do número de visitantes no território de geoparque é essencial para gestão local, bem como definir políticas públicas voltadas ao turismo e a priorizar áreas, a depender do fluxo de visitas. No Seridó Geoparque Mundial da UNESCO, que engloba 6 municípios no interior do RN, NE do Brasil, foi desenvolvido um formulário eletrônico para ser preenchido pelos guias e condutores que trabalham no território. Desta forma, é possível captar os visitantes que estão de fato indo ao território devido à atração pelo geoparque. O formulário com 7 campos está disponível a todos os profissionais, tendo sido divulgado de forma direta com aqueles que têm maior envolvimento com a equipe do geoparque, mas também foi inserido no site e divulgado nos canais de comunicação. Foi possível medir a presença de cerca de dez mil visitantes ao longo do ano de 2022, com predomínio da prática de ecoturismo, geoturismo e turismo pedagógico. Os resultados mostram também a forte presença de turistas do próprio estado do RN, mas apontam visitantes com origem em outros estados do Nordeste, do Sul e Sudeste, além de visitantes estrangeiros. Os dois locais mais visitados são os geossítios Cânions dos Apertados e Serra Verde. Os dados obtidos permitem uma análise do perfil dos visitantes do Seridó Geoparque Mundial da UNESCO e os seus principais atrativos, o que pode no futuro próximo fortalecer o planejamento turístico local, bem como as ações de divulgação.
Roteiro geoturístico rodoviário no Estado do Rio Grande do Norte, Nordeste do Brasil
Authors: Medeiros Wendson Dantas de Araújo
Published: January 2024

Este artigo objetiva apresentar e descrever locais de interesse geoturístico (LIG), com o intuito de contribuir para a formação de roteiro geoturístico rodoviário e promover o desenvolvimento sustentável da região por meio da valorização e preservação da geodiversidade local. Os procedimentos estão pautados em trabalho de campo, caracterização e análise qualitativa dos valores da geodiversidade de cada local identificado. Foram identificados e caracterizados 6 locais de interesse geoturístico ao longo do roteiro proposto com grande potencial geoturístico a ser explorado. O estudo demonstra a viabilidade do roteiro proposto, mas aponta para medidas necessárias de geoconservação, promoção e divulgação da geodiversidade por meio de políticas públicas e instalação de painéis interpretativos, e a realização de inventários locais para subsídio à elaboração de roteiros geoturísticos municipais que conciliem à proteção da geodiversidade e ao desenvolvimento sustentável por meio do geoturismo.
Identificação de sítios da geodiversidade na Serra do Caverá, sul do Brasil: a singularidade dos cerros Palomas e Torneado
Authors: Vicari Évini Gabrielli , Kormann Tanice Cristina , Silva Rafael Fernandes e , Ribeiro Glaucus Vinicius Biasetto
Published: January 2024

A Serra do Caverá é integrante do patrimônio cultural, histórico, geográfico, natural, paisagístico e ambiental do Rio Grande do Sul pela Lei Estadual nº 12.355 de 2005. Recentemente, houve a reedição desse instrumento legal diante do interesse na implantação de atividades voltadas à geração de energia eólica na região. O presente trabalho objetivou identificar os locais de maior relevância para a preservação da geodiversidade, bem como para o patrimônio cultural e histórico da Serra do Caverá.  Metodologicamente, buscou-se informações através do levantamento bibliográfico e estabelecimento de contatos com atores sociais e pesquisadores. Paralelamente, o mapeamento dos morros e morrotes isolados permitiu selecionar locais de maior relevância para  posterior trabalho de campo. Os resultados parciais indicam dois morros testemunhos de maior relevância devido a sua singularidade paisagística, importância turística e cultural, sendo eles o Cerro Palomas e o Cerro Torneado. Ambos foram avaliados  qualitativamente e quantitativamente com auxílio da plataforma Geossit. Dessa forma, foi possível reunir e sistematizar informações a fim de apoiar a gestão ambiental estadual na proteção do patrimônio geomorfológico, histórico e cultural. A pesquisa se reveste de importância devido ao atual interesse na implantação de  empreendimentos de geração de energia eólica na região, o que poderá ter impacto direto na paisagem local.
Roteiros geoeducativos em geossítios de diferentes categorias no Geopark Araripe, Ceará
Authors: Oliveira Bruna Almeida de , Albuquerque Francisco Nataniel Batista de
Published: January 2024

Os roteiros geoeducativos e as aulas em campo são importantes estratégias educacionais de percepção e valoração da geodiversidade por parte da sociedade civil e, principalmente, dos alunos da Educação Básica. Diante do exposto, o objetivo do presente trabalho é propor roteiros geoeducativos por meio de aulas em campo segundo as diferentes tipologias de geossítio do geopark Araripe, Ceará. Do ponto de vista metodológico, os geossítios foram classificados segundo o interesse principal da geodiversidade. Como resultado foram propostos três roteiros geoeducativos: roteiro paleontológico, nos geossítios Floresta Petrificada, Parque dos Pterossauros e Pedra Cariri; roteiro geomorfológico, Colina do Horto, Pontal de Santa Cruz e Ponte de Pedra; e roteiro hidrogeológico, nos geossítios Batateira, Riacho do Meio e Cachoeira de Missão Velha. Para cada categoria de geossítio segundo o interesse principal da geodiversidade foram considerados, no planejamento dos roteiros geoeducativos, os objetivos, melhor período para visitação, logística e infraestrutura, bem como as vulnerabilidades/limitações para a realização da atividade por meio das aulas em campo com crianças e adolescentes, permitindo, assim, a valoração do geopatrimônio do Geopark Araripe e a ressignificação dessa metodologia de ensino no contexto da Geografia Escolar.
Aspectos culturais de Locais de Interesse Geomorfológico (LIGeom) da região do Cânion do rio Poti, Nordeste do Brasil
Authors: Silva Helena Vanessa Maria da , Maia Rubson Pinheiro , Cunha Lúcio José Sobral da
Published: January 2024

A região do Cânion do rio Poti situa-se no Nordeste do Brasil, na divisa dos estados do Ceará (CE) e Piauí (PI) e corresponde a um vale inciso do tipo U, que secciona os arenitos da Formação Serra Grande orientado no sentido E-W. Na área, observam-se diversidade de atrativos de base abiótica (quedas d’água, piscinas naturais, mirantes, serras, cavernas, furnas, diversas feições ruiniformes, entre outros muitos), além de manifestações paleontológicas como afloramentos icnofossilíferos. Além disso, apresenta riqueza de sítios arqueológicos (gravuras e pinturas) em associação com aspectos históricos/culturais. O presente artigo objetiva identificar e analisar os aspectos culturais de Locais de Interesse Geomorfológico (LIGeom) presentes na região do Cânion do rio Poti, de acordo com a classificação de valores de Murray Gray. Nesse sentido, foram considerados os seguintes critérios: i: dar destaque aos pontos que disponham de relevância histórica e/ou cultural, e ii: locais que possuam acesso para visitação na área supracitada. Conclui-se que o trabalho de reconhecimento dos aspectos culturais dos LIGeom é uma fonte de dados que subsidia a implantação de futuras medidas de geoconservação nesta área. Espera-se que as diferentes esferas do poder público, aliadas a iniciativas privadas, em especial dos moradores locais, efetivem medidas que garantam a conservação desta valiosa geodiversidade.
Geoparque: uma mobilização coletiva com foco no desenvolvimento sustentável
Authors: Rebellato Mauricio , Lisboa Filho Flavi Ferreira
Published: January 2024

Identificar-se com o território no qual se está inserido pode motivar um grupo à uma ação coletiva, que se reverta em benefícios para a comunidade. Como as identidades são permeadas por relações de poder que fomentam disputas sociais e simbólicas, essa ação pode se dar por diferentes motivos. A partir desse contexto discute-se a construção da identidade de indivíduos pertencentes ao território de um Geoparque (UNESCO) e como a comunicação pode ser usada para criar vínculos e identidades. Também são apresentadas estratégias adotadas em territórios Geoparque que promovem o desenvolvimento sustentável. Ao longo do artigo, fica evidente que a preservação do território e o estímulo às ações comunitárias, podem construir e fortalecer uma identidade coletiva que promova o desenvolvimento sustentável. Também é possível observar que toda ação precisa ser articulada e pensada fundamentalmente com e para a comunidade.
Geomorfologia como cenário fílmico: o caso do Parque de Bardenas Reales - Espanha
Authors: Steinke Valdir Adilson
Published: January 2024

A produção cinematográfica demanda um processo de criação de cenários, sejam eles em estúdio ou em locações realizadas em paisagens já existentes, as quais podem ser adaptadas para o roteiro ficcional. Neste trabalho foi analisado o conjunto de paisagens geomorfológicas do Parque de Bardenas Reales (Espanha), como cenário para a produção de “Games of Thrones”. Tendo como parâmetros de observação a relação estabelecida pela demanda da ficção e suas repercussões no contexto local e regional. Os resultados apontam para um elevado crescimento de turismo no parque e uma difusão das locações como ponto de interesse dos espectadores, tornando as feições geomorfológicas um elemento relevante para o entendimento da paisagem original.
A dinâmica das coberturas e usos da terra e as ameaças à geodiversidade no município de São Lourenço do Sul (Brasil)
Authors: Schwanz Vinícius Bartz , Oliveira Vítor Emanuel Silva de , Simon Adriano Luís Heck , Trentin Gracieli
Published: January 2024

O respectivo estudo visa analisar e compreender a dinâmica das coberturas e usos da terra, no que diz respeito às ameaças nos locais com elevados índices de geodiversidade no município de São Lourenço do Sul, estado do Rio Grande do Sul, Brasil. Inicialmente foram obtidos dados sobre a cobertura e uso da terra para o recorte espacial citado nos anos de 1985, 1995, 2005, 2015 e 2020, oriundos do MapBiomas. Sobre os mapas derivados, foram sobrepostos os polígonos que representam as áreas com elevados índices de geodiversidade, a fim de viabilizar a compreensão das ameaças que a evolução espacial dos usos da terra desencadeou nestas áreas com maior concentração espacial dos elementos abióticos da natureza que compuseram o índice de geodiversidade (geologia, geomorfologia, pedologia e hidrografia). Os dados obtidos demonstram uma diminuição generalizada das coberturas nativas do bioma pampa (formação campestre) com a ampliação das áreas envoltas com o cultivo de lavouras temporárias, principalmente a sojicultura e da silvicultura para o município de São Lourenço do Sul. Nos polígonos que representam os elevados índices de geodiversidade, além do comportamento geral das coberturas e usos identificados para o município, ocorreu o avanço da fumicultura na região serrana e a evolução de culturas temporárias (ênfase para o arroz irrigado) nas áreas de planície costeira. Tais resultados permitem compreender a importância do monitoramento e preservação dos locais com elevados índices de geodiversidade na área de estudo.
Combined enzymatic and ultrasound-assisted aqueous two-phase extraction of antidiabetic flavonoid compounds from Strobilanthes crispus leaves
Authors: Arbianti Rita , Angelina  , Suryapranata Bryan , Purwati Latifah Linatri , Fadilah Putri Najah , Surya Utami Tania , Muharam Yuswan , Slamet
Published: January 2024

A novel green extraction method combining enzymatic and ultrasound-assisted aqueous two-phase extractions was employed to enhance and purify the flavonoid extract from Strobilanthes crispus leaves. Cellulase was used in the pretreatment, and ethanol-(NH4)2SO4 was selected as the solvent. A concentration of 7% (w/w) cellulase and a duration of 2 h were the optimal conditions for pretreatment. The optimal conditions for ultrasound-assisted aqueous two-phase extraction were 33% (w/w) ethanol and 14% (w/w) (NH4)2SO4 as they produced a yield (77.81%), partition coefficient (31.17), extraction efficiency (98.04%), and a high total flavonoid content (0.3666 mg QE/g dry leaf powder). Six compounds from the leaf extract were identified through liquid chromatography-mass spectrometry/mass spectrometry-quadrupole-time of flight (LCMS/MS-Q-TOF) analysis. The crude extract and three compounds in it (kaempferol, graveobioside A, and genistein) showed an antidiabetic activity with IC50 values of 390.35, 201.87, 292.73, and 431.82 mg/mL, respectively. These values are comparable to the standard drug acarbose.
Evaluating hydrogen production from glucose using graphite felt beads as a solid matrix in immobilized mixed cell reactor at thermophilic fermentation
Authors: Ssatar Ibdal , Salehmin Mohd Nur Ikhmal , Abu Bakar Mimi Hani , Wan Daud Wan Ramli , Kumalasari Ika Dyah , Aziz Muhammad , Somalu Mahendara Rao , Kim Byung Hong
Published: January 2024

This study has successfully evaluated graphite felt (GF) beads as a solid matrix to immobilize or trap the mixed cultures in an immobilized mixed-cell reactor (IMcR). The anaerobic sludge of palm oil mill effluent was used as an inoculum source in the IMcR with mixed culture. Here, glucose, sucrose, and starch were used as the model substrates to evaluate the performance of IMcR with GF beads for producing bio-hydrogen (BioH2). BioH2, effluent, and surface morphology of GF beads were analyzed by using gas chromatography equipped with a thermal conductivity detector, high-performance liquid chromatography, and scanning electron microscopy, respectively. The highest H2 yield (YH2) and production rates were obtained at 304.0 ± 13.2 mL g?1COD (corresponding to 2.26 mol mol?1glucose) and 1403 ± 61 mL L?1 day?1, respectively. IMcR with GF beads is a new approach for generating high YH2, which can be used for more than two months in an experimental run.
Evaluation of viability and survival of free and maltodextrin microencapsulated Bifidobacterium animalis subsp. animalis through spray-drying process
Authors: Corpas-Iguarán Eduardo Javid , Triviño-Valencia Jessica , Tapasco-Alzate Omar , Garcés-Gómez Yeison Alberto
Published: January 2024

Bifidobacterium animalis subsp. animalis is a microorganism integrated into the human intestinal microbiota and performs a probiotic function through mechanisms that promote the absorption of nutrients, the modulation of the immune system, and the production of lactic acid, among other aspects. Microencapsulation using maltodextrin promotes the protection of microorganisms against physical and chemical factors, improving viability over time. Bifidobacterium animalis subsp. animalis was microencapsulated through spray-drying using maltodextrin. Survival under pH conditions, bile salts, and temperature were evaluated as well as its viability during storage conditions. The viability of the encapsulated agent stored at 25 °C remained high and constant during the first three weeks. The results for free and microencapsulated thermal tolerance showed an important difference among survival percentages of each tested temperature, and microencapsulation showed a protective effect against temperatures like or lower than 55 °C. Regarding pH 2.5 exposure for 3h, there is a survival of 5.38% for free microorganisms in contrast to 11.87% for encapsulated, whereas in a pH 3.5 for 3h, the encapsulated agent showed a survival of 23%. The results obtained from encapsulated cells stressed with a 1g/L concentration of bile salts showed a survival of 19%, while free cells presented a total loss of viability when subjected for 3h at the same concentration. Microencapsulated Bifidobacterium animalis subsp. animalis demonstrated potential for its use incorporated into foods, but it is necessary to improve viability conditions during storage and survival under gastric stress conditions.
AniraBlock: A leap towards dynamic smart contracts in agriculture using blockchain based key-value format framework
Authors: Saputra Irwansyah , Arkeman Yandra , Jaya Indra , Hermadi Irman , Akbar Nur Arifin , Sutedja Indrajani
Published: January 2024

Blockchain technology offers data transparency and traceability, which is particularly useful in the agricultural sector, especially within the supply chains of commodities like coffee and fish. This sector often encounters issues such as quality degradation, unclear information, and socioeconomic injustice affecting stakeholders. The implementation of Static Smart Contracts (SSCs) on blockchains provides a structured method for executing agreements. However, this approach also has limitations, including a lack of flexibility and responsiveness to dynamic changes in the supply chain. Despite these challenges, blockchain remains a valuable tool for ensuring transaction transparency, traceability, and integrity, which are vital in agriculture. These limitations involve unchangeable parameters, rigid rules, and constraints on adaptability and scalability. This study aims to tackle these issues by designing a more dynamic and responsive smart contract system. We introduce AniraBlock, a revolutionary concept for the agricultural supply chain, particularly in the coffee and fish sectors, by implementing Dynamic Smart Contracts (DSCs) based on a key-value format framework. Unlike SSCs, DSCs offer enhanced adaptability and scalability, addressing the former's limitations. Our study adopts a mixed-method approach, utilizing both qualitative and quantitative data to validate AniraBlock's effectiveness. Preliminary results show significant improvements in data management and supply chain transparency. The proposed framework has the potential to influence the agricultural sector by boosting data integrity and operational efficiency.
Development of new effective activated carbon supported alkaline adsorbent used for removal phenolic compounds
Authors: Humadi Jasim , Nawaf Amer T. , Khamees Luay Ahmed , Abd-Alhussain Yasser A. , Muhsin Hussain F. , Ahmed Mustafa A. , Ahmed Marwan M.
Published: January 2024

Phenolic (phenol) compounds are the major contaminates in wastewater, which can have a considerable negative influence on the environment and health of human. Adsorption is an efficient process that is widely applied in order to eliminate phenol in wastewater. In recent, Adsorption process has acquired a lot of attentiveness owing to its relative moderate operating conditions. However, adsorption process needs considerable ameliorations in terms of adsorbent modification, process type, productivity, and conversion rate. This work studies the development of a fast and effective adsorption process in a fixed bed adsorption column (FBAC) in order to reach safe and continuous elimination of phenolic compounds. Several adsorption parameters (reaction temperature, adsorbent bed height, feed flow rate and kind of adsorbent) were studied to achieve the highest removal of phenolic compounds. The adsorption process was conducted in the presence of two type of adsorbents (activated carbon (AC), and KOH/AC), 73% and 94% of phenol elimination were attained, respectively, at 10 cm bed height, 1 ml/s feed flow rate, and 75 °C reaction temperature. The adsorbents activity was investigated after six consecutive adsorption cycles at the best process conditions, and the adsorbents show high stability in terms of phenolic compounds adsorption. After that, the spent adsorbents were regenerated by utilizing various solvents (methanol, ethanol and iso-octane), and the results show that iso- octane achieved highest regeneration efficiency. The adsorption process was implemented in the adsorption column that the performance is possibly to be adjusted at an industrial scale since it can be scaled up predictably.