水土保持研究2017，Vol.24Issue(6)：267-272,6.
2000-2014年呼伦贝尔沙地河流湿地植被NPP时空变化及驱动力分析
Spatiotemporal Changes of Net Primary Productivity of River Wetland and Its Driving Factors in Hulun Buir Sandy Land in 2000-2014
摘要
Abstract
Net primary productivity (NPP) can directly reflect the production capacity of the vegetation in the natural environment.the NPP of River Wetland in Hulun Buir sandy land on air changes and driving force were analyzed using the data of temperature and precipitation and combining with remote sensing images,simple difference method and trend analysis and linear regression.The results showed that:considering the time,the sandy land in Hulun Buir River Wetland NPP presented the fluctuant growth,NPP growth in the area of wetland accounted for up to 92.51％ of area,the annual growth rate was between 0～2 gC/(m2 · a);with respect to the space,NPP presented the distribution of the east high west low;during the 15 years,the wetland with fastest growing NPP is in Western Herlen wetland with growth area of up to 99.5％0;climate change and human activities are two important factors that lead to the changes of NPP,NPP is significantly correlated with the increase of precipitation (R =0.703),negatively correlated with temperature (R =-0.559).The change of the economic industrial structure makes the pressure of human activities on the ecological environment decrease,which leads to the increase of NPP.At the same time,the national policy and the sand control project also affect the change of NPP.关键词
植被净初级生产力/时空变化/驱动力分析/河流湿地Key words
net primary productivity/temporal and spatial variation/driving force analysis/river wetland分类
信息技术与安全科学引用本文复制引用
郭连发,来全,伊博力,银山..2000-2014年呼伦贝尔沙地河流湿地植被NPP时空变化及驱动力分析[J].水土保持研究,2017,24(6):267-272,6.基金项目
内蒙古师范大学研究生科研创新项目(CXJJS16109) （CXJJS16109）
内蒙古自治区研究生教育计划(S20161013509) （S20161013509）
内蒙古自治区自然基金(2013ZD08) （2013ZD08）
