黄土高原不同生态地理区植被净初级生产力变化与驱动力分析  

Analysis change of vegetation net primary productivity and its driving force in different eco-geographical zones on the Loess Plateau

作　　者：陈鹏飞[1] 王金颖 诸云强[1,3] CHEN Pengfei;WANG Jinying;ZHU Yunqiang(State Key Laboratory of Resources and Environment Information System,Institute of Geographic Science and Natural Resources Research of Chinese Academy of Sciences,Beijing 100101,China;School of Architecture Engineering,Shandong University of Technology,Zibo 255000,China;Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application,Nanjing 210023,China)

机构地区：[1]中国科学院地理科学与资源研究所,资源与环境信息系统国家重点实验室,北京100101 [2]山东理工大学建筑工程学院,淄博255000 [3]江苏省地理信息资源开发与利用协同创新中心,南京210023

出　　处：《生态科学》2024年第3期43-52,共10页Ecological Science

基　　金：中国科学院战略先导科技专项(XDA23100100);高分辨率对地观测系统重大专项(21-Y20B01-9001-19/22);国家自然科学基金(41871344)。

摘　　要：为支撑黄土高原精准生态恢复工程建设和区域可持续发展政策制定,围绕黄土高原“退耕还林”工程后,经济建设、生态工程及气候变化耦合影响下不同生态地理区的植被净初级生产力变化与驱动力展开研究。为实现此目的,首先收集了长时间序列(2000—2015)土地利用、植被净初级生产力、气象等数据,采用趋势分析等手段,研究了黄土高原各生态地理区净初级生产力的变化规律;然后采用土地转移矩阵分析、相关分析等手段,分析了导致各地理区植被净初级生产力变化的驱动力。结果表明,黄土高原不同生态地理区的气候变化、生态工程建设有别,从而导致净初级生产力变化趋势不同;大多生态地理区的净初级生产力主要受气候变化影响,少量地理区的净初级生产力受气候与生态工程建设耦合作用的影响;在生态恢复工程为净初级生产力变化主导因子的地理区,其影响主要体现在2010年之前,且生态工程建设适宜采用的植被恢复类型有别。To support the application of precision ecological restoration projects on the Loess Plateau and the formulation of regional sustainable development policies,the changes of the net primary productivity(NPP)of vegetation in different ecological geographic regions on the Loess Plateau under the coupling influence of economic development,as well as ecological engineering and climate change after the“returning farmland to forests”project were focused.For this purpose,long-term series(2000-2015)data on land use,vegetation net primary productivity,meteorology,etc.were collected at first,and methods such as trend analysis to study the changing laws of NPP in various ecological geographic regions of the Loess Plateau were used.Then,the driving forces leading to vegetation NPP varieties in different eco-geographical zones were analyzed using land transfer matrix analysis and correlation analysis methods.The results showed that the changing trends of NPP in different eco-geographical zones of the Loess Plateau were different,because of differences in climate change and ecological engineering for different eco-geographical zones;most eco-geographical zones’NPP were mainly affected by climate change,and a few eco-geographical zones were affected by the coupling effect of climate change and ecological engineering.In the eco-geographical zones,where ecological restoration projects is the main factors of NPP changes,the impact of ecological restoration project is mainly reflected before 2010,and there exist differences in the selection of suitable recovering vegetation types.

关 键 词：生态地理区 净初级生产力 生态恢复工程 气候变化 黄土高原 

分 类 号：K930[历史地理—人文地理学]