Status, diversity and distribution patterns of mangrove vegetation in the Segara Anakan lagoon, Java, Indonesia

Autor: S.J. Geist, Inga Nordhaus, Saskia Hinrichs
Rok vydání: 2008
Předmět:
Zdroj: Regional Environmental Change. 9:275-289
ISSN: 1436-378X
1436-3798
DOI: 10.1007/s10113-008-0074-4
Popis: In the Segara Anakan lagoon, Java, 21 tree species and 5 understorey genera have been identified. Average tree density is 0.80 ± 0.99 Ind./m² with 48.71% seedlings and an average basal area of 9.86 ± 10.54 cm²/m². Tree density and diversity are high in the eastern part of the lagoon, located near the city of Cilacap. There, the dominant tree species are Aegiceras corniculatum, Nypa fruticans and Rhizophora apiculata, of which the two latter are characteristic for mature forests. By contrast, understorey species and the pioneer species (Avicennia alba, Aegiceras corniculatum and Sonneratia caseolaris) dominate the central lagoon where several rivers discharge. Compared to former studies, seedling density and tree diameter in the central lagoon has declined considerably and tree species dominance has changed. The high sedimentation rates and deforestation are likely to prevent the formation of a mature forest there. Tree communities are more equilibrated in the eastern lagoon which points to a more stable and less disturbed mangrove forest.
Databáze: OpenAIRE
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