Karakteristik Ekosistem Mangrove Pada Dua Cabang Delta Mahakam  

Oleh:

Lukman ; Pratama, G. V. ; Ridwansyah, I.

Jenis: Article from Journal - ilmiah nasional - terakreditasi DIKTI - non-atma jaya
Dalam koleksi: Jurnal Teknologi Lingkungan no. Bag 2 (Jul. 2006), page 208-214.
Topik: Delta; Mangrove; Sediment Fraction; and Sediment Organic

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: TT35.1 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

The change condition of Delta Mahakam marked by decreasing mangrove area caused by shrimp aquaculture development and high sedimentation caused by changing of land use in upstream. It will influence to mangrove ecosystem existing. Research of mangrove ecosystem characteristic has done in June 2003, on two branch of Delta Mahakam, at Muara Berau (northern area) and Muara Jawa (southern area), to recognize mangrove community succession and characteristic of sedimentation. Mangrove community determined by measuring the standing density of tree (IE trunk> 10 cm), belt (iE trunk between 2 — 10 cm), and seeding (IE trunk < 2 cm), sediment characteristic identified from content organic and component of fraction. Based on dominance of sand fraction (> 90%) on mangrove ecosystem show that sedimentation in Delta Mahakam was high, for other side the mangrove community show on succession level was marked by abundance of pioneer species, like Soneratia arid Avicenia, and organic conten (5.4— 12.4 % dry weight) and C/N organik ratio was/ow (6—7). Bruguiera sp., Ceriops sp., and Nyppa sp. was foud on rare number. Standing density of trunk of tree show on good community, although not too dense. Regeration level in Muara Berau seem better than Muara Jawa. The tree density influence to organic content in sediment.

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