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FOREST RESOURCES WANAGEMENT ›› 2017, Vol. 0 ›› Issue (1): 110-117.doi: 10.13466/j.cnki.lyzygl.2017.01.019

• Scientific Research • Previous Articles     Next Articles

Spatio-temporal Change in Precipitation and Surface Temperature and Their Relationships with NDVI of Different Ecological Function Zones in North Xinjiang

WANG Jiping1(), GUO Zhongjun2(), CHENG Fu3, ZHANG Qibin4, MA Huan4, YU Yilei5   

  1. 1. Research Center of Saline and Alkali Land of State Forestry Administration,CAF.,Beijing 100091,China
    2. Institute of Forest Ecology,Xinjiang Forestry Academy,Urumqi 830000,China
    3. Soil and Water Conservation Monitoring Center,Ministry of Water Resources,Beijing 100055,China
    4. College of Forestry,Beijing Forestry University,Beijing 100083,China
    5. Beijing Key Laboratory of Wetland Services and Restoration,Institute of Wetland Research,Chinese Academy of Forestry,100091 Beijing,China
  • Online:2017-02-28 Published:2020-10-03
  • Contact: GUO Zhongjun E-mail:wjp_gis@163.com;gzj1964110101@sina.com

Abstract:

Precipitation and surface temperature are two most important climatic factors.They are also two main factors that affect the distribution and change of the vegetation.Based on the average annual precipitation,temperature,NDVI and snow depth data of many years,the changes in different climate factors and their correlation with NDVI were analyzed.The result shows that:most of the regions in north Xinjiang tend to be wetting,especially in the central area of the Junggar Basin,where the slope of the precipitation change is between 1.15 and 1.42;the annual average precipitation in the high altitude mountain area that only makes up 2% of the whole region decreases obviously,the sharpest decreasing slope of the precipitation change is -0.203;the overall temperature of north Xinjiang shows a warming trend,of which the slope of temperature increase shows a significantly gradient pattern from high mountains(2.04)to lowland(-0.044);NDVI is closely related to average annual rainfall and temperature variations.We should attach importance to strengthening the construction and management of vegetation on the scale of ecological function area.

Key words: time-series NDVI data, ecological function zone, spatio-temporal change, climatic factors, correlation analysis

CLC Number: