Judul: Dampak Perubahan Penggunaan Lahan Terhadap Ruang Terbuka Hijau dan Indeks Kenyamanan di Kota Semarang.
Abstrak: Kota iSemarang imerupakan isalah isatu ikota iterpadat iyang iada idi iIndonesia. iPeningkatan ijumlah ipenduduk iKota iSemarang imenyebabkan ikonversi ilahan iyang iberdampak ipada imeningkatnya isumber ipanas iyang idapat imenimbulkan imasalah ilingkungan iperkotaan. iPerubahan ipenggunaan ilahan imenjadi ikawasan iyang ikurang isesuai idengan iperencanaan imenjadi imasalah idalam itata iruang, imaka iperlu idirumuskan ikebijakan ipengembangan idan ipengelolaan iTata iRuang iHijau iperkotaan iuntuk idapat imeningkatkan ikualitas ilingkungan ihidup iperkotaan. Penelitian ini ibertujuan i: i1) iMengidentifikasi iperubahan ipenggunaan ilahan idan iruang iterbuka ihijau, i2) iMenganalisis iprediksi ipenggunaan ilahan, i3) iMenganalisis iketersediaan iruang terbuka hijau, i4) iMenganalisis itingkat ikenyamanan itermal iberdasarkan iperhitungan iTemperature iHumidity iIndex. Penelitian iini imenggunakan icitra isatelit iLandsat i8 itahun iperekaman i2013, i2017 idan i2022 iuntuk imendapatkan idata ipenggunaan/penutupan ilahan idan ipola iperubahannya imenggunakan iklasifikasi irandom iforest (RF). iPada iPemodelan iprediksi ipenggunaan ilahan imenggunakan imetode iCellular iAutomata i(CA) idengan imemasukkan ifaktor-faktor ifisik, isosial, iekonomi idan ikebijakan. iDalam ianalisis iketersediaan iruang iterbuka ihijau idapat idilakukan iperhitungan iberdasarkan iluas iwilayah isebesar i30% idari iluas iwilayah iadministratif ikawasan itersebut. Kemudian dilakukan perhitungan temperature humidity indekx (THI) untuk menentukan tingkat kenyamanan dan arahan penggunaan lahan pengembangan ruang terbuka hijau (RTH) . Hasil pengolahan data dan survei lapangan serta klasifikasi RF pada penggunaan lahan tahun 2013-2022 didominasi oleh kelas lahan terbangun. Penggunaan lahan terbangun terus meningkat dari tahun 2013-2022 sebesar 8,84% atau 3410 ha, yang berdampak pada penurunan ruang terbuka hijau sebesar 7,59% atau 2.928 ha. Pada prediksi penggunaan lahan tahun 2032 di-dominasi kelas lahan terbangun sebesar 61% atau 23.575 ha. Ketersediaan RTH kota Semarang terus mengalami penurunan sebesar 9% dari tahun 2013-2032, sedangkan pada tahun 2032 ketersediaan RTH sebesar 29,67% atau sedikit lebih rendah dari luas minimal yaitu 30%. Hubungan RTH dengan tingkat kenyamanan saling mempengaruhi, dimana menurun-nya RTH menyebabkan menurunnya kenyamanan. Untuk mengatasi hasil ini diperlukan, pengembangan RTH dua kawasan prioritas yaitu area kawasan prioritas 1 yaitu menambah RTH di setiap Kecamatan, mempertahankan RTH yang sudah ada dan melakukan pembuatan roof garden dan vertikal garden untuk menurunkan suhu pada kawasan padat penduduk. Sementara, kawasan prioritas 2 yaitu mempertahankan RTH yang sudah ada yang berupa hutan kota dan kawasan perkebunan., Semarang City is one of the most densely populated cities in Indonesia. The increase in the population of Semarang City causes land conversion which has an impact on increasing heat sources which can cause urban environmental problems. Changes in land use into areas that are not by planning are a problem in spatial planning, it is necessary to formulate policies for the development and management of urban Green Spatial Planning to be able to improve the quality of the urban living environment. This study aims to: 1) identify changes in land use and green open space, 2) analyze predictions of land use, 3) analyze the availability of green open space, and 4) analyze the level of thermal comfort based on the calculation of the Temperature Humidity Index. This study uses 8-year Landsat satellite imagery recorded in 2013, 2017, and 2022 to obtain land use/cover data and patterns of change using random forest (RF) classification. In land use prediction modeling using the Cellular Automata (CA) method by incorporating physical, social, economic,
Keyword: green open space, land use and convenience index

Judul: Distribusi Spasial Suhu Permukaan dan Kecukupan Ruang Terbuka Hijau di Kota Semarang
Abstrak: Semarang is one of cities that become center of public activity which is always developing in many aspects such as settlement, , roads, industries and other infrastructures. Unfortunately, The development seems to ignore environmental sustainability, in which large of green open space are converted into other land uses. The conversion will lead micro climate changes resulted in Urban Heat Island and green house effect. Those phenomenon can be observed by utilizing Geographic Information System and remote sensing. The objectives of the research are as follows : (1) land cover type identification and surface thermal of spatial distribution, , (2) the relationship between surface thermal with Green Space capacity, open land and built areas. (3) the relationship between surface thermal with Normalized Difference Vegetation Index (NDVI), through interpretation and landsat Imaginery 7 ETM. The research area situated at in Semarang City and data used were Landsat Imaginery 7ETM path/row 120/065 acquiring on April 2001 and June 2006. Landsat imagery were analyzed using an Arc View 3.2 and ERDAS Imagine 8.5 software. Surface temperature were estimated using band 6. Those analysis were aimed to identify relationship between surface thermal with Green Space, the open land, built area and NDVI. Semarang city with 38.721.70 Ha are dominated by land cover, such as built area 27.52% on year 2001 and 35,58% in 2006. The biggest land cover changes happened on built area and with advancing is 8.06%. Thermal Surface distribution were found ranges from <20 oC - ≥34 oC. The area which have thermal surface value of ≥34 oC was expanded from 16.80 % in 2001 to 25.68% in 2006. However, green space capacity areal are still covering 30%, inline with proportion based on UU. No.26 on 2007 about areal governance. The relationship between surface thermal with Green Space and other land uses were identified. It showed that surface temperature of open space area is lower than other landuses such as bare land and settlement. Moreover, It analysis result showed that surface temperature will infllence by NDVI, in which the surface temperature will increase by the lowering NDVI and vice versa.
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Judul: Embriogenesis ikan buta (Astyanax fasciatus)
Abstrak: Ikan buta Astyanax fasciatus adalah spesies ikan unik dari famili Characidae yang menempati perairan dalam gua di Wilayah La Cueva Chica-San Luis Potasi-Mexico. Ikan ini memiliki mata yang tereduksi (Blind Cavefish) dan warna kulit merah muda, pucat serta mengkilap.
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