节点文献
北京山区森林碳储量遥感估测技术研究
Remote Sensing Estimation of Forest Carbon Stock in Beijing Mountain
【作者】 赵丽琼；
【导师】 张晓丽；
【作者基本信息】 北京林业大学 ， 地图学与地理信息系统， 2010， 硕士
【摘要】 北京市森林对维护和改善本市环境起着至关重要的作用,进行北京市森林碳储量定量研究,探讨其数量及其空间分布格局,可为造林决策、城市规划和管理决策提供依据。本研究在收集前人研究资料和野外调查的基础上,构建单木生物量估测模型,获取标准地生物量；以TM和MODIS为遥感信息源,构建样地生物量遥感估测模型,估测森林地上生物量,进而估算碳储量。北京山区碳储密度混交林33.23 t／hm2、阔叶林34.71 t／hm2、针叶林37.77 t／hm2、灌木林26.31 t／hm2；碳储总量混交林4.OlTg、阔叶林10.25Tg、针叶林5.86Tg、灌木林7.71Tg,北京山区森林地上部分碳储总量27.82Tg。MODIS-NDVI估测模型得到的碳储总量及空间分布格局最佳,MODIS-EVI估测模型得到的碳储总量是MODIS-NDVI模型的82.03%,TM-NDVI和TM-MSAVI模型得到的灌木林碳储总量及分布异常,TM植被指数的一元二次方程生物量估测模型不适合北京山区森林碳储量的估算。
【Abstract】 Forest plays an important role on maitaining and improving the environment in Beijing. To research on forest carbon stock, its abundance and distribution pattern will lay a foundation on forestation decision, urban planning and management.We construct biomass estimation model of single tree to obtain the biomass of sample plot based on collecting previous research material and field investigation and establish biomass remote sensing estimation model of sample plot to get the forest biomass and carbon storage with TM and MODIS data. The conclusions are:1)the carbon storage density of mingled forest, broad-leaved forest, coniferous forest and shrub forest is 33.23 t/hm2,34.71t/hm2,37.77t/hm2 and 26.31h/tm2; 2)the carbon storage of mingled forest, broad-leaved forest, coniferous forest and shrub forest is 4.01Tg,10.25Tg,5.86Tg and 7.71Tg, the above-ground forest carbon stock of Beijing is 27.82Tg; 3)the total carbon stock and distribution pattern of Beijing from the biomass estimation model by MODIS-NDVI are the best; 4)the total carbon storage from the biomass estimation model by MODIS-EVI is eighty-two percent of which by MODIS-NDVI; 5)the carbon stock and distribution pattern from the biomass estimation model by TM-NDVI and TM-MSAVI are abnormal, and the quadric equation between biomass and TM vegetation index is not appropriate for the carbon stock estimation of Beijing.