期刊论文

中文

湿地科学

1672-5948

2018

16

3

445-450

10.13248/j.cnki.wetlandsci.2018.03.023

国家重点研发计划项目

本校为其他机构

利用MODIS NPP数据、气象数据和土地利用数据,采用简单差值和一元线性回归方法,分析2000~2015年辽河流域植被净初级生产力的时空变化特征,并探讨其与气候因子的关系。研究结果表明,2000~2015年辽河流域年植被净初级生产力的变化范围为238~334 g/(m~2·a)碳,该流域内年植被净初级生产力缓慢上升,在空间上表现为东高、西低的态势;浑太河子流域的植被净初级生产力最高[348.17 g/(m~2·a)碳],东辽河子流域的次之[330.14 g/(m~2·a)碳],西辽河子流域的最低[217.23 g/(m~2·a)碳];16 a来,辽河流域植被净初级生产力总体上在增加,植被净初级生产力增加了的区域面积占辽河流域总面积的95.1%。2000~2015年...

As the residual of organic matter produced by the plant photosynthesis, the vegetation net primary productivity (NPP) forms an important part of the global carbon cycle. It is significantly affected by anthropogenic activities and climate change. The Liao River basin is located in a typical temperate monsoon belt of the northeastern part of China. Because of its ideal climatic conditions, the basin is suitable for farming and grazing. However, the increasing anthropogenic activities and global climate change have resulted in severe environmenta...