Judul: Kajian Keragaman dalam Pengembangan Taman Kehati Indramayu
Abstrak: Taman Kehati Indramayu awalnya berfungsi sebagai hutan kota yang hanya berubah fungsinya menjadi taman keanekaragaman hayati. Penelitian ini bertujuan untuk mendapatkan jenis vegetasi pohon dan tingkat keragamannya, mengetahui tingkat kenyamanan termal, mengetahui proses pemeliharaan dan memberikan rekomendasi konsep penanamannya. Data diambil dengan metode analisis kondisi tapak, analisis tingkat dominansi vegetasi menggunakan Indeks Nilai Penting (INP), analisis keragaman vegetasi, analisis kenyamanan pada tapak, serta analisis SWOT. Taman Kehati Indramayu menambahkan 33 spesies baru pada program revitalisasi, dan 10 spesies baru pada program Replika Ekosistem Rawa Gelam sebagai Metode Konservasi pada Hutan Kayu Putih. Ada lima tanaman dengan nilai INP tertinggi yaitu, kayu putih, trembesi nam-nam, ketapang dan tanjung. Taman Kehati Indramayu memiliki nilai indeks keragaman yang meningkat tiap tahunnya. Indeks keragaman pada tahun 2022 mencapai angka 3,10 termasuk kategori tinggi. Tingkat kenyamanan thermal menunjukkan bahwa Taman Kehati Indramayu termasuk kategori nyaman di area naungan dan tidak nyaman di area tanpa naungan. Penelitian ini menghasilkan rekomendasi berupa rekomendasi deskriptif, rekomendasi pemilihan tanaman, rekomendasi gambar rencana penanaman di beberapa area penting.
Keyword: Biodiversity Park, diversity, conservation, development

Judul: The Role of Mekarsari Biodiversity Park as a Wildlife Habitat in Sukabumi District, West Java
Abstrak: PT Aqua Golden Mississipi pabrik Mekarsari merupakan industri air minum dalam kemasan yang telah membangun Taman Keanekaragaman Hayati (Kehati) tahun 2012 dengan tujuan konservasi tumbuhan langka dan perlindungan mata air. Keberadaan taman kehati diharapkan mampu mengembalikan satwa yang hilang dan/atau mendatangkan satwa baru. Penelitian ini bertujuan untuk mengkaji peran taman kehati sebagai habitat satwa liar dengan inventarisasi satwa berdasarkan taksanya. Penelitian ini dilaksanakan di Taman Kehati Mekarsari pada bulan Mei-Juni 2018. Alat yang digunakan adalah termometer dry wet, GPS, kamera, kamera jebakan, binocular, pita ukur, Arcgis 10.5 dan microsoft office. Analisis data dilakukan untuk memperoleh struktur dan komposisi vegetasi, indeks keanekaragaman, indeks kemerataan vegetasi dan satwa liar, serta status perlindungan satwa liar. Hasil penelitian ditemukan 23 spesies tumbuhan dari 15 famili. Satwa liar ditemukan 21 spesies yang terdiri dari 5 mamalia, 9 burung dan 7 herpetofauna. Terdapat 2 spesies satwa yang dilindungi oleh PP Nomor 7 Tahun 1999, dan 2 spesies yang masuk kategori Appendix CITES., Aqua Golden Mississipi Inc, Mekarsari factory, a bottled drinking water industry, has built a Biodiversity Park in 2012 with the aim of conserving rare plants and protecting springs. The existence of the park is expected to be able to return the lost wildlife and/or bring in new wildlife. This study aims to examine the role of the biodiversity park as a wildlife habitat by taking an inventory of wildlife based on their taxa. This research was conducted at Taman Kehati Mekarsari in May-June 2018. The tools used were dry wet thermometer, GPS, camera, camera trap, binocular, measuring tape, Arcgis 10.5 and microsoft office. Data analysis was carried out to obtain the structure and composition of vegetation, diversity index, evenness index of vegetation and wildlife, and wildlife protection status. The results showed 23 plant species from 15 families. Wildlife were found 21 species consisting of five mammals, nine birds and seven herpetofauna. There are two species that are protected by Government Regulation Number 7 of 1999 and two species that are included in the CITES Appendix.
Keyword: biodiversity, wildlife, park, vegetation

Judul: Characterizations of low alloy steel sae 4422  plated with chromic acid (Cro3)
Abstrak: Characterizations of low alloy steel SAE 4422 plated with chromic acid (CrOrO3) was use Optical Microscopy (OM), Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), RD),Energy Dispersive Analysis of X-Ray (EDAX), Hardness Test and Roughness Test. Microstructures analysis exhibits cracks and grain boundaries microcracks as a characteristics of chrome metal found at plating metal. Perlite and Ferrite as grains of steel found at base metal with grain boundaries around it. Phase analysis of plating metal appropriate to chrome metal with lattice constant (a) is 2.559 Å and phase analysis of base metal appropriate to iron ferrite with lattice constant (a) is 3.318 Å. Both plating and base metal have cubic system. Chemical analysis of plating metal at surface section exhibits that cracks area have highest value of carbon element compare with grains and grains boundaries area. While chemical analysis of base metal at cross section exhibits that perlite have highest value of carbon element compare with ferrite and grain boundaries. The hardness value of plating metal at surface section and cross section are 753 and 637 VHN. While, the hardness value of base metal and interface area at cross section are 205 and 373 VHN. The roughness value at measurement points of chrome surface for as received sample are 0.445 μm. Observation used Optical Microscopy and Scanning Electron Microscopy exhibits surface irregularities combine to form surface texture of plating metal at surface section.
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