摘要
以黑龙江省的森林分布区为研究区域,基于光能利用率模型,利用2006年1km分辨率的MODIS数据和82个气象站的日照资料,结合土地覆盖类型,估算出研究区森林的年NPP,实现了遥感数据驱动的黑龙江省森林NPP的反演尝试。结果表明:2006年黑龙江省森林NPP的年总量为120.4×1012g.a-1,年平均值为545.6g.m-2.a-1,NPP最高值为1669g.m-2.a-1。其时间分布特点表现为明显的季节性变化,变化曲线呈单峰型;空间分布特点表现为显著的纬向分布,南高北低,东高西低,其中大兴安岭的森林NPP最低,小兴安岭次之,老爷岭的最高,基本体现了生产力按地域的正常分布规律。
Taking Heilongjiang province as case study region, the annual forest Net Primary Production （NPP） was es- timated, based on the light utility efficiency model, by using the 1 km MODIS data and the sunshine data from 82 mete- orological stations in 2006. The remote sensing retrieval of forest NPP in Heilongjiang province was also realized. The results showed that the total forest NPP in Heilongjiang was 120.4 ×10^12g y^-1 in 2006, the average value was 545.6g -2 -1 -2 m y , the highest value of NPP was 1669g m y . There was obvious seasonal change, and the varying curve acted as a single peak value wave. There was also a remarkable latitudinal change, the values in south was higher than north, and east was higher than west. The NPP in Daxing＇anling mountain was the lowest, while the highest value was in Laoyeling mountain. The results were accordance to the natural regional distributing of forest NPP in Heilongjiang province.
出处
《中国农业气象》
CSCD
2010年第1期88-92,97,共6页
Chinese Journal of Agrometeorology
基金
中国气象局风云气象卫星遥感开发与应用示范项目"东北湿地遥感监测应用示范系统及其关键技术"(FiDAF-2-06)
中国气象局2007年多轨道业务建设项目"东北地区生态与粮食安全监测评价预警系统(一期)"
黑龙江省气象局重点项目"黑龙江省生态与农业气象监测预警评估服务系统"(ZD2006-03)
关键词
黑龙江省
森林
净第一性生产力(NPP)
光能利用率模型
遥感反演
Heilongjiang province
Forest
Net primary production （NPP）
Light utility efficiency model
Remotesensing retrieval
