[Objectives]To investigate the dynamic evolution of vegetation index in Qinling Mountains from 2000 to 2019.[Methods]Based on MODIS13 NDVI data,the regularity of dynamics of vegetation index in Qinling Mountains from ...[Objectives]To investigate the dynamic evolution of vegetation index in Qinling Mountains from 2000 to 2019.[Methods]Based on MODIS13 NDVI data,the regularity of dynamics of vegetation index in Qinling Mountains from 2000 to 2019 was analyzed using maximum value composite method and trend analysis method.[Results]The NDVI in Qinling Mountains was in the range of 0.799-0.863 during 2000-2019.It showed a slow upward trend overall,and the growth rate was 0.033/(10 a).The area with declined NDVI accounted for 4.111%of the study area.It was distributed in the surrounding areas of cities,and was manly affected by the process of urbanization.The improved area accounted for 36.224%of the study area.It was widely distributed in Qinling Mountains,and was mainly affected by natural factors and national policies.[Conclusions]This study provides a basis for the protection of ecological environment and the sustainable development and utilization of resources in Qinling Mountains.展开更多
基金Project of Shaanxi Provincial Land Engineering Construction Group(DJNY2021-33).
文摘[Objectives]To investigate the dynamic evolution of vegetation index in Qinling Mountains from 2000 to 2019.[Methods]Based on MODIS13 NDVI data,the regularity of dynamics of vegetation index in Qinling Mountains from 2000 to 2019 was analyzed using maximum value composite method and trend analysis method.[Results]The NDVI in Qinling Mountains was in the range of 0.799-0.863 during 2000-2019.It showed a slow upward trend overall,and the growth rate was 0.033/(10 a).The area with declined NDVI accounted for 4.111%of the study area.It was distributed in the surrounding areas of cities,and was manly affected by the process of urbanization.The improved area accounted for 36.224%of the study area.It was widely distributed in Qinling Mountains,and was mainly affected by natural factors and national policies.[Conclusions]This study provides a basis for the protection of ecological environment and the sustainable development and utilization of resources in Qinling Mountains.
