基于MODIS的典型区域生态功能区环境质量变化研究  

Study on Environmental Quality Change of Typical Regional Ecological Functional Zone Based on MODIS

作　　者：冯彬[1] 张小强 王志康 黄娟[1] FENG Bin;ZHANG Xiao-qiang;WANG Zhi-kang(Jiangsu Provincial Key Laboratory of Environmental Engineering,Jiangsu Provincial Academy of Environmental Science,Nanjing,Jiangsu 210036;Anhui Construction Engineering Survey Design Institute,Hefei,Anhui 230000)

机构地区：[1]江苏省环境工程重点实验室,江苏省环境科学研究院,江苏南京210036 [2]安徽省城建设计研究总院股份有限公司,安徽合肥230000

出　　处：《安徽农业科学》2020年第2期85-92,共8页Journal of Anhui Agricultural Sciences

基　　金：国家十三五水体污染控制与治理科技重大专项(2018ZX07208-004);江苏省环境工程重点实验室开放课题项目(ZX2017007)

摘　　要：利用2000—2016年的MODIS数据,对呼伦贝尔生态功能区环境质量变化时空格局进行分析。结果表明,研究区光合有效辐射(FPAR)、叶面积指数(LAI)在过去17年间整体较稳定,FPAR均值在0.7 W/m 2附近波动,LAI均值在2.8附近波动。总初级生产力(GPP)、净光合速率(PsnNet)整体上呈现缓慢增加的趋势,最大值均出现在2014年,分别为0.044、0.035 kg C/m 2;最小值均出现在2003年,分别为0.028、0.021 kg C/m 2。空间格局上,FPAR、LAI、GPP和PsnNet的指标值呈自西向东逐渐增加的趋势。该研究为呼伦贝尔生态功能区草地退化遥感监测提供技术方法。Using the MODIS data from 2000 to 2016,the spatial-temporal pattern of environmental quality change in the Hulunbeir Ecological Function Zone was analyzed.The results showed that the photosynthetically active radiation(FPAR)and leaf area index(LAI)in the study area were generally stable over the past 17 years,the FPAR average fluctuate around 0.7 W/m 2,and the LAI average fluctuate around 2.8.The gross primary production(GPP)and net photosynthesis(PsnNet)values showed a slowly increasing trend as a whole.The maximum values appeared in 2014,which were 0.044 and 0.035 kg C/m 2 respectively;and the minimum values appeared in 2003,which were 0.028 and 0.021 kg C/m 2,respectively.In terms of spatial structure,the values of FPAR,LAI,GPP and PsnNet gradually increased from west to east.This research would provide a technical method for monitoring of grassland degradation by remote sensing in the Hulunbuir ecological function area.

关 键 词：呼伦贝尔 MODIS 生态功能区 环境质量 变化特征 

分 类 号：X82[环境科学与工程—环境工程]