Soil of restored tropical mangrove area from artificial planting of coastal mangrove species in Selabat, Sarawak, Malaysia

Fatin Husna, Zulikram (2014) Soil of restored tropical mangrove area from artificial planting of coastal mangrove species in Selabat, Sarawak, Malaysia. [Final Year Project Report] (Unpublished)

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Abstract

Establishment for restoration of mangrove forest required information of physical environment especially soil conditions in order to ensure the success of mangrove forest restoration program. However, still limited studies are available on the ecological functions of soil characteristics in the formation of new mangrove ecosystem. A study was conducted in order to clarify the current status of soil physicochemical properties in mangrove restoration sites planted with Rhizophora apiculata at Selabat mangrove estuary, Sarawak. In this study, the relationship between the growth of planted tree and soil physicochemical properties were assessed and determined. Field survey and soil sampling were conducted in study plots established in sites with planted R. apiculata at two different planting spacing; 4m x 4m (AA plot) and 2m x 2m (BB plot) and, in natural mangrove forest (CC plot). Soil samples were collected at depth 0 25 em and 25 50 em for determination of soil physicochemical analysis. Growth performance in term of tree diameter at breast height and total height were measured. The results showed that soil in both plots has silty clay loam texture with high salinity. The soils were moderately alkaline with high level of exchangeable bases and available phosphorus observed in both plots. In term of growth performance of planted tree, the results showed that AA plot has higher DBH but lower total height as compared to BB plot. Based on the fmdings, no clear correlation between soil physicochemical with growth performance of R. apiculata and other edaphic factors should be taken into consideration for further analysis. Notwithstanding, it is recommended to further study on nutrients available in water and frequent soil analysis should be conducted to obtain accurate data.

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