Monitoring the effect of restoration measures in Indonesian peatlands by radar satellite imagery.

摘要: In the context of ongoing climate change discussions importance peatlands as carbon stores is increasingly recognised in public. Drainage, deforestation and peat fires are main reasons for release huge amounts from peatlands. Successful restoration degraded tropical high interest due to their store sequestration potential. The blocking drainage canals by dam building has become one most important measures restore hydrology ecological function domes. This study investigates capability using multitemporal radar remote sensing imagery monitoring hydrological effects these measures. area former Mega Rice Project Central Kalimantan, Indonesia, where forest degradation especially intense. Restoration started July 2004 30 large dams until June 2008. We applied detection analysis with more than 80 ENVISAT ASAR ALOS PALSAR images, acquired between 2009. Radar signal increases up 1.36 dB show that frequency satellite can be used detect an increase soil moisture after construction, deforested areas a density dams. Furthermore, strong correlation cross-polarised backscatter coefficients groundwater levels above −50 cm was found. Monitoring peatland rewetting quantifying level variations information vegetation re-establishment, fire hazard warning making emission mitigation tradable under voluntary market or REDD (Reducing Emissions Deforestation Degradation) mechanism.