13.07.2015 Views

The Rimba Raya Biodiversity Reserve REDD Project

The Rimba Raya Biodiversity Reserve REDD Project

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Existing Conditions: Field Surveys of Peat and BiomassOverviewForest Carbon consultants and Orangutan FoundationInternational (OFI) conducted a field survey June 22 – July 4, 2009on behalf of InfiniteEARTH to support the <strong>Rimba</strong> <strong>Raya</strong> carbonassessment. Two 8-­‐person field teams, including experiencedforest surveyors, OFI staff and local residents familiar with <strong>Rimba</strong><strong>Raya</strong> forests conducted the survey. In the initial 6 transectssurveyd, a total of 12,750 meters of transect were marked andsurveyed with peat depth measured in 131 locations and biomassdata recorded across 28 plots representing 7 hectares of forest.27 of 28 plots were located in logged peat swamp forest which isthe predominant forest type in <strong>Rimba</strong> <strong>Raya</strong>.Survey results indicate that despite the history ofselective-­‐hand logging in the area, forest biomass ismoderately high and relatively consistent across majorforest blocks in <strong>Rimba</strong> <strong>Raya</strong>.Unexpectedly, peats were moderately deep across allsurvey transects. Most peat measurements exceeded thereach of the peat probe at 4 or 5 meters. Peats were 2-­‐3meters deep on the southernmost transect within 10 kmof the Java Sea.DBH measurements of subplot treesMeasuring peat depth and using the prism to sample basal area87

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