| Idteknologi | 455 |
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| Judul | Karakteristik Ekosistem Mangrove Pada Dua Cabang Delta Mahakam |
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| Abstrak | 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 (? trunk > 10 cm), belt (? trunk between 2 ? 10 cm), and seeding (? 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 and Avicenia, and organic conten (5.4 ? 12.4 % dry weight) and C/N organik ratio was low (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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| Katakunci | Delta, mangrove, sediment fraction, and sediment, organic. |
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| Kategori | 7 |
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| Mediamasa | Jurnal Teknologi Lingkungan Edisi Khusus 2 "Hari Lingkungan Hidup 2006" |
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| Alamatlink | http://www.kelair.bppt.go.id/Jtl/2006/khusus2/ |
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| Penulis | Lukman, G.Y. Pratama, & I. Ridwansyah |
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| Email | air@webmail.bppt.go.id |
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