Attribution Analysis of Climate and Anthropic Factors on Runoff and Vegetation Changes in the Source Area of the Yangtze River from 1982 to 2016

被引：29
|
作者：
Ji, Guangxing [1 ]
Song, Huiyun [1 ]
Wei, Hejie [1 ]
Wu, Leying [2 ,3 ,4 ]
机构：
[1] Henan Agr Univ, Coll Resources & Environm Sci, Zhengzhou 450002, Peoples R China
[2] Henan Univ, Key Res Inst Yellow River Civilizat & Sustainable, Kaifeng 475001, Peoples R China
[3] Henan Univ, Collaborat Innovat Ctr Yellow River Civilizat Joi, Kaifeng 475001, Peoples R China
[4] Henan Univ, Minist Educ, Kaifeng 475001, Peoples R China
来源：
LAND | 2021年 / 10卷 / 06期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
runoff variation; vegetation change; attribution analysis; source region of the Yangtze River; SOURCE REGION; SEASONAL RUNOFF; CHINA; EMISSIONS; IMPACTS; BASIN; EVAPOTRANSPIRATION; NDVI;
D O I：
10.3390/land10060612
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Analyzing the temporal variation of runoff and vegetation and quantifying the impact of anthropic factors and climate change on vegetation and runoff variation in the source area of the Yangtze River (SAYR), is of great significance for the scientific response to the ecological protection of the region. Therefore, the Budyko hypothesis method and multiple linear regression method were used to quantitatively calculate the contribution rates of climate change and anthropic factors to runoff and vegetation change in the SAYR. It was found that: (1) The runoff, NDVI, precipitation, and potential evaporation in the SAYR from 1982 to 2016 all showed an increasing trend. (2) The mutation year of runoff data from 1982 to 2016 in the SAYR is 2004, and the mutation year of NDVI data from 1982 to 2016 in the SAYR is 1998. (3) The contribution rates of precipitation, potential evaporation and anthropic factors to runoff change of the SAYR are 75.98%, -9.35%, and 33.37%, respectively. (4) The contribution rates of climatic factors and anthropic factors to vegetation change of the SAYR are 38.56% and 61.44%, respectively.
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页数：13
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