Mangrove forest conservation on the coast of West Kalimantanhas been successfully carried out and saved the environment from coastal abrasion (ecological benefit) and provided economic benefits for the community. This study aims to describe the role of the community in mangrove conservation activities in the coastal areas of West Kalimantan. Survey methods were used in this research. The data was collected through interviews based on questionnaires and in-depth interviews. Data processing was conducted by calculating the percentage and then analyzed by tabulation. Mangrove conservation activities are based on community experiences in saving the environment, boosting economic activities, and obtaining benefits from conservation results. The involvement of the local community uses the bottom-up approach, starting from planning activities, implementation, utilization, and evaluation. In general, the local community’s level of involvement is still at the information and consultation stage. The involvement of the local community as an individual varies greatly, from those who are only involved as part of formality to the level of being actively involved, having decision-making authority, and being able to negotiate and deal directly with capital sources. It occurs due to the varying capacity of each individual. Keywords: forest conservation, local community, mangrove
Indonesia belum mampu menyuplai kebutuhan daging sapi. Oleh karena itu diperlukan peningkatan populasi sapi potong dengan cara meningkatkan jumlah kelahiran pedet dan calon indukan dalam jumlah besar. Tujuan penelitian ini untuk mengevaluasi tingkat keberhasilan inseminasi buatan pada sapi Simental di Kecamatan Wonomulyo Kabupaten Polewali Mandar. Metode yang digunakan dalam penelitian ini adalah Simple Random Sampling dengan teknik wawancara. Hasil penelitian memperlihatkan S/C1=1 sebanyak 25 ekor sapi betina bunting dengan pelaksanaan 1 kali inseminasi. S/C2 dengan nilai 2, adalah nilai yang didapatkan dari 2 kali inseminasi pada 31 ekor sapi betina bunting. S/C3=3 sebanyak 6 ekor sapi betina dikategorikan dalam nilai kurang baik, nilai rata,an S/C Sapi Simental betina produktif yaitu 1,5. CR1 adalah sapi betina bunting dalam 1 kali inseminasi dengan nilai 100%, sedangkan CR2 adalah sapi betina bunting dalam 2 kali IB dengan nilai 50%. CR3 adalah sapi betina bunting dalam 3 kali IB dengan nilai 33,33%, Nilai rata-rata CR pada Sapi Simental adalah 88,57%. Tingkat keberhasilan Inseminasi Buatan pada induk sapi Simental di Kecamatan Wonomulyo Kabupaten Polewali Mandar sudah baik dilihat pada Conception Rate (CR1) yaitu 100%, CR2=50%, dan CR3=33,33% dinyatakan kurang baik karena <50%, dengan rata-rata 88,57%. Service Per Conception (S/C 1) yaitu 1 S/C2=2, dan S/C3=3 merupakan nilai yang kurang baik, dengan nilai rata-rata 1,5.
The land for mangrove forest rehabilitation in Setapuk Besar Village, North Singkawang District is quite alarming due to abrasion and seawater intrusion. Leaf litter decomposition of Rhizophora spp. produce essential nutrients that function as a source of food and support the life of mangrove plants. The purpose of this study was to calculate the rate of decomposition of leaf litter of mangrove Rhizophora spp. in the rehabilitation area of mangrove forests and obtain the amount of nutrient content (C-organic, N, P) from mangrove leaf litter released during the decomposition process. This study uses a survey method with a purposive technique with reference to the category of planting year (2007, 2010, 2013 and 2016). Rhizophora spp. leaf litter decomposition rate. The highest was found at station II with a value of 0.13 (gr/day) while the lowest decompositcccpion rate was found at stations II, III and IV with a value of 0.12 (gr/day). The highest value of carbon (C-organic) content was found at station II at 52.39%, the lowest value was at station IV at 49.20%. The highest value of nitrogen content was found at station I of 1.21%, while the lowest value was found at station IV at 0.76%. The highest value of phosphorus nutrient content was found at station III of 0.30%, while the lowest value was found at station II of 0.25%.Keywords: Decomposition Rate, Litter, Mangrove AbstrakLahan rehabilitasi hutan mangrove yang berada di Kelurahan Setapuk Besar Kecamatan Singkawang Utara cukup memprihatinkan yang disebabkan oleh abrasi dan intrusi air laut. Penguraian serasah daun Rhizophora spp. menghasilkan unsur hara yang esensial berfungsi sebagai sumber makanan dan penyangga kehidupan tanaman mangrove. Tujuan dari penelitian ini adalah menghitung nilai laju dekomposisi serasah daun mangrove Rhizophora spp. di lahan rehabilitasi hutan mangrove dan mendapatkan jumlah kandungan unsur hara (C-organik, N, P) dari serasah daun mangrove yang dilepas selama proses terurai. Penelitian ini menggunakan metode survei dengan teknik purposive dengan mengacu pada kategori tahun tanam (2007, 2010, 2013 dan 2016). Laju penguraian serasah daun Rhizophora spp. tertinggi terdapat pada stasiun II dengan nilai sebesar 0,13 (gr/hari) sedangkan untuk laju penguraian terendah terdapat pada stasiun II, III dan IV dengan nilai sebesar 0,12 (gr/hari). Nilai kandungan Karbon (C-organik) tertinggi terdapat pada stasiun II sebesar 52,39%, nilai terendah terdapat pada stasiun IV sebesar 49,20%. Nilai kandungan Nitrogen yang tertinggi terdapat pada stasiun I sebesar 1,21%, sedangkan nilai terendah terdapat pada stasiun IV sebesar 0,76%. Nilai kandungan unsur hara Posfor tertinggi terdapat pada stasiun III sebesar 0,30%, sedangkan nilai terendah terdapat pada stasiun II sebesar 0,25%.Kata kunci: Laju penguraian, mangrove, serasah, Setapuk Besar
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