MISC

2013年

Improvement of CO2 emission model by modification of soil respiration from tropical Peatlands in Indonesia

34th Asian Conference on Remote Sensing 2013, ACRS 2013
  • Haemi Park
  • ,
  • Wataru Takeuchi
  • ,
  • Kazuhito Ichii

3
開始ページ
2065
終了ページ
2071

The carbon budget on global peat land is a big research issue recently. In this study, ground water table was used to quantify the CO2 emission. Peat lands have much water contents in their soil which was not decomposed dead plants. However if their ground water table decline, the peat soil will be converted to a source of carbon to atmosphere. Therefore we estimated ground water table of global with remote sensed data. The objectives of this study are to reveal the carbon budget of peat lands and to improve recent models with adding soil respiration and fire emission. The result of the model calculation of peat land in Palankaraya were compared with the satellite-based estimation. The model improving was done only one site of the Indonesian peat land (Palankaraya). As the result, annual NEE that is annual average of CO2 emission of global peat lands was 7.86Pg(ER-GPP; 9.75-1.89(Pg)). The annual mean of fire emission from Indonesian peat land was 34.5 Tg. Especially in Indonesia the soil respiration of peat soil was calculated as 384Tg. This result of Indonesian peat land was applied to the results of 7 models. Finally the underestimation of 6 models were modified with soil respiration because of the models didn't include peat soil decomposition into parameters before adding this soil respiration. Copyright© (2013) by the Asian Association on Remote Sensing.

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  • SCOPUS ID : 84903473041

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