[1]XIE Shengjin,LIU Yonghe,YAO Fengxin.Spatial-Temporal Characteristics of NDVI and Its Relationship with Climate Change in Beijing from 1998 to 2015[J].Research of Soil and Water Conservation,2020,27(03):190-196,202.
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Spatial-Temporal Characteristics of NDVI and Its Relationship with Climate Change in Beijing from 1998 to 2015
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 03
Page number:
190-196,202
Column:
目次
Public date:
2020-04-20
- Title:
- Spatial-Temporal Characteristics of NDVI and Its Relationship with Climate Change in Beijing from 1998 to 2015
- Keywords:
- NDVI; Beijing; spatial and temporal variation; climate change; human activity
- CLC:
- Q948.112
- DOI:
- -
- Abstract:
- In order to study the response relationship between vegetation growth and climate factors,we based on the SPOT-NDVI data of Beijing from 1998 to 2015, using the trend analysis method, partial correlation and complex correlation analysis method, combining with the meteorological data of Beijing, we analyzed the relationship climate change with the temporal and spatial variation characteristics of NDVI at the annual and seasonal scales. The results show that:(1)on the annual scale, based on the spatial distribution analysis, the NDVI of the mountainous area is larger than that of the plain area; the spatial change rate of vegetation in Beijing is generally increasing, the spatial change rate of vegetation in the plain area around the central city shows a downward trend; based on the annual variation analysis, the vegetation changes have the closer relationship with precipitation than the temperature factor;(2)on the seasonal scale, the maximum area of spatial significant growth vegetation occurred in spring, the growth of vegetation is different in different seasons; the sensitivity of vegetation growth to temperature is higher than that to precipitation in spring and autumn; the growth of vegetation was more sensitive to precipitation in summer;(3)the vegetation growth of the month is more closely related to the precipitation of previous month and the temperature of previous two months. The results indicated that climate is an important factor affecting the distribution of vegetation, and understanding the law of climate change has an important guiding role for the protection of vegetation.
- References:
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Last Update:
2020-04-30