This study was to examine the process of desalination of coastal waters in South Kalimantan resulting in decreased quality of coastal habitat. Data input for research included time-series primary data of salinity values, derived from observation stations have been set. This research is based on grounded research methods to get the facts and comparison analysis through field observation and relevant data sources, including primary and secondary data, both qualitative and quantitative, as well as the approach to landscape approach using remote sensing data.The results showed that the phenomenon of coastal water desalination give effect to the fragility of coastal communities, especially mangroves, thus impacting derivatives of more vulnerability to degradation processes that occur on the coast of South Kalimantan. The research results can used as the basic of integrated coastal zone management.
ABSTRAK Desa Jejangkit Muara salah satu desa yang terletak di kecamatan Jejangkit, Kabupaten Barito Kuala, Kalimantan Selatan merupakan daerah pengembangan kawasan budi daya terpadu berbasis agribisnis yang dikembangkan oleh Kabupaten Barito Kuala. Berdasarkan letak geografis, desa ini dilintasi sungai Martapura dan rawa banjiran. Mata pencaharian penduduk sebagian besar petani, peternak, dan pembudidaya ikan, khususnya pembesaran ikan gabus (Channa striata) di kolam tanah. Di desa Jejangkit Muara sudah terbentuk kelompok pembudidaya ikan Harapan Kita. Kelompok pembudidaya ikan ini masih mengalami permasalahan dalam budi daya ikan gabus. Kendala utamanya adalah ketersediaan benih ikan gabus secara kontinyu baik kualitas maupun kuantitas. Salah satu penyebabnya adalah tingginya tingkat kematian benih ikan gabus berukuran 1-3 cm. Permasalahan lain penggunaan pakan ikan rucah berupa ikan sepat rawa. Penggunaan ikan rucah sepat rawa menyebabkan biaya pakan tinggi, kandungan nutrisi berubah-ubah, dan berdampak pada lingkungan. Tujuan kegiatan PKM memperkenalkan teknologi double hapa sebagai inkubator benih, pemeliharaan dalam hapa 2x3 m, dan penggunaan pakan pellet sebagai pengganti pakan ikan rucah sepat rawa. Tahapan yang dilaksanakan dengan metode difusi ipteks dan substitusi ipteks, melalui penyuluhan, demonstrasi, dan evaluasi. Hasil evaluasi pengetahuan diperoleh t hit = 9,17 dan tingkat keterampilan t hit = 6,21 > t tab (0,05) = 2,228 dan t tab (0,01) = 3,169. Hal ini berarti terjadi peningkatan pengetahuan dan keterampilan setelah dilakukan penyuluhan dan demonstrasi. Hasil evaluasi sikap mitra keseriusan-serius, minat-sangat berminat, dan ambisi-cukup berambisi.
Decreasing area of coastal swamp ecosystem causing stress to aquatic biota which living in those habitat, and give impact to fishermen's prosperity level. Study of coastal swamp's condition really important, with aim as consideration to decide policies that needed to reach environmental balancing and sustainibility of exploitation. Study was done to both primary and secundary data, which include tabulative, graphical, qualitative and quantitative/statistics and computative, both description and inferential, and so spatial analysis for reach locally information of mangrove area's degradation, and temporal information of comparation with secondary data. Condition of ecosystem of coastal swamp in Jorong subdistrict, which representated by condition of ecosystem of mangrove showing damaged to really damaged condition. Rate of decreasing of mangrove areas in Jorong subdistrict reach of 614,49 ha, or average rate of areas decreasing were 38,41 ha/year. Factors that caused damaged/degradation process of coastal swamp in Jorong subdistrict, Tanah Laut Regency dominated by wave activities and area's converted
Kegiatan penambangan intan di Desa Pumpung Kecamatan Cempaka Kota Banjarbaru Provinsi Kalimantan Selatan merupakan kegiatan penambangan tradisional yang telah sejak lama dilakukan dan memberikan dampak negatif terjadinya perubahan pH perairan sekitar. Penggunaan kapur gamping merupakan upaya alternatif yang efektif dan efisien untuk memperbaiki kondisi perairan. Penelitian ini bertujuan (1) mengkaji faktor penyebab menurunnya kualitas pH pada air bekas galian penambangan intan di Cempaka, (2) mengkaji proses kapur gamping memulihkan pH air bekas galian penambangan intan di Cempaka, (3) dosis kapur gamping yang tepat diberikan agar peningkatan nilai pH air asam bekas pertambangan intan berada pada kisaran baku mutu. Penelitian dilakukan dengan metode survei untuk memperoleh informasi faktual dan metode eksperimen dalam mencari pengaruh perlakuan tertentu terhadap pH air dalam kondisi yang terkendalikan.
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