Species Density and Lead (Pb) Pollution in Mangrove Ecosystem, South Kalimantan
Anang Kadarsah, Dafiuddin Salim, Sadang Husain, Marta Dinata
Abstract
Its crucial to get information about lead (Pb) heavy metal pollution from mining and oil palm plantation on species density in mangrove ecosystem, to anticipate its impacts. This study aimed is to compare the types and densities of vegetation in mangrove ecosystems allegedly due to mining in Setarap village, Tanah Bumbu Regency and oil palm plantations in Kuala Tambangan Village, Tanah Laut Regency. We also analysis the condition of waters (TDS, pH and DO) and organic content in sediments to acquire data from the South Kalimantan mangrove ecosystems. The results showed there were four species of true mangroves (Avicennia alba, Acanthus ebracteatus, Nypa fruticans and Rhizophora apiculate) could live well in the environment affected by mining or oil palm plantations. The species density for trees was low (933 ind/ha) for mangroves affected by coal mines, while those affected by oil palm plantations had higher densities (1,067 ind/ha). pH value of waters in affected area by coal mining showed more acidic value (pH 5.76) especially at the back, while those by palm oil plantations are more acidic (pH 6) in the estuary. Organic matter content in sediments affected by coal mines was in the range of 0.61-6.59%, while those affected by oil palm plantations showed higher values (0.12-2.19%). Lead heavy metal content (Pb) in waters affected by coal mines was 0.031-0.056 mg/L, while the area affected by oil palm plantations was of higher value (0.110-0.128 mg/L). Lead (Pb) levels in sediments indicate higher values than waters, which reach 3.512-6.046 mg/Kg (affected by coal mines), and in areas affected by oil palm plantations reaching 6.658-6.66 mg/Kg. The general conclusion is that vegetation densities in areas affected by coal mines are lower than oil palm plantations. The level of lead (Pb) pollution in the sediments is higher than in the waters.
Keywords
vegetation, heavy metals, coal, mangroves
https://journal.uinsgd.ac.id/index.php/biodjati/article/view/7411
Study of Mud Clam Polymesoda erosa (Bivalvia) Conservation Strategy Based on Landscape Character and Anthropogenic Activity
Anang Kadarsah, Krisdianto Krisdianto, Ika Oksi Susilawati
Abstract
Information on landscape character and anthropogenic activity is necessary to develop conservation strategy, especially for mud clam (Polymesoda erosa) sustainability harvesting. The purpose of this study is to identify the landscape character and anthropogenic activity that influence mud clam conservation strategy in the coast of Tabanio Village, Takisung Sub-District in Tanah Laut Regency. The research discovered seven types of landscape in the coastal area of Tabanio namely human settlements, rice fields, plantations, cemetery abandoned land, offices, and other public infrastructures. Landscape, landscaping, abandoned land and settlements provide the largest contribution (96 %t) in the formation of coastal characters. Related to changes in landscape structure, environmental pollution activity in the form of waste disposal to the landscape is the most frequent activity (91.4 %) related to changes in landscape structure. Destructing collecting, cutting down and destroying plants and animals in and from the region (87.7%) are the most frequent anthropogenic activities related to the conservation of mud clam in the coast of Tabanio Village. The landscape zonation consists of four i.e : recreation zone, mangrove forest zone, economic zone and distribution zone. The position of each zone tends to clump primarily for the economic zone behind the recreation zone. The core zone of the landscape design at Tabanio Coast , Takisung District is concentrated in the recreation zone which functions as a meeting place for various communities (fishermen, traders and visitors) and the government workers (village officials and TNI-Polri). Furthermore, the recreation zone also facilitates activities that support coastal economy and tourism. Community assistance programs are required to build the capacity of fishermen and farmers as an effort to achieve a successful mud clam conservation and management in Tabanio Village, Takisung District.
Keywords
adaptation, conservation, shellfish, coastal
https://journal.uinsgd.ac.id/index.php/biodjati/article/view/3209
Kajian Perbandingan Luas Pekarangan dan Kearifan Lokal Jenis Tanaman Obat di Pesisir Pantai Kabupaten Tanah Laut
Anang Kadarsah, Ika Oksi Susilawati
Abstract
Minimnya informasi mengenai lahan pekarangan di pesisir pantai Kabupaten Tanah Laut serta terbatasnya pengetahuan penduduk lokal dalam mengenal berbagai jenis tanaman berkhasiat obat pada pekarangan berdampak terhadap diabaikannya peran tanaman obat di pekarangan dan tingginya biaya pemeliharaan penduduk lokal untuk kesehatan. Tujuan penelitian ini adalah mengkaji perbandingan luas pekarangan dan menggali informasi kearifan lokal berbagai jenis tanaman obat dari lima desadi Pesisir Pantai Kabupaten Tanah Laut, Provinsi Kalimantan Selatan. Metode yang digunakan adalah pengamatan jenis-jenis tanaman obat serta wawancara pengetahuan penduduk lokal dalam memanfaatkan pekarangannya. Hasil penelitian menunjukkan rerata luas pekarangan rumah tertinggi di Desa Takisung (212 m2) dan terendah di Desa Sungai Bakau (49,1 m2). Perbandingan luas ideal (2:3) antara pekarangan dengan rumah ditemukan di Desa Batakan dan Desa Sungai Rasau. Jumlah jenis tanaman obat pada pekarangan berkisar dari 30 -52 jenis dengan Indeks Nilai Penting (INP) terbanyak adalah mangga, pisang talas, singkong, karet dan kelapa. Indeks diversitas tanaman obat pada pekarangan menunjukkan nilai bervariasi, tertinggi di Desa Sungai Rasau (1,390) dan terendah di Desa Sungai Bakau (1,130).Dalam hal ini, potensi terbaik pengembangan tanaman obat pada pekarangan berada di Desa Takisung berdasarkan parameter keanekaragaman jenis tanaman obat dan tipe pekarangan rumahnya.
Keywords
kearifan, lokal, tanaman, pekarangan, pesisir
https://journal.uinsgd.ac.id/index.php/biodjati/article/view/2346
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