期刊论文

Analysis on Characteristics and Causes of Temperature and Vegetation Changes in the Middle and Lower Reaches of the Yangtze River After the Three Gorges Dam Operation

中文

气候变化研究进展

1673-1719

2017

13

6

578-588

10.12006/j.issn.1673-1719.2017.071

国家自然科学基金(41571427) 国家重点研发计划重点专项(2016YFC0500203)

本校为其他机构

基于长江中下游流域120个气象站点1971—2015年日值气温数据,2006—2015年ERA-Interim土壤湿度再分析资料和2006—2015年MODIS卫星遥感植被指数产品MOD13A3,研究了在考虑全球变暖背景下,长江中下游流域春、夏、秋、冬4个季节平均气温在三峡大坝运行前后的变化,采用百分比阈值方法量化最高和最低气温并进行MK突变检验,并分析三峡大坝运行后的长江中下游流域四季土壤湿度和增强型植被指数(EVI)的变化.结果表明:长江中下游流域四季平均气温在三峡大坝运行以后出现明显变化,江南地区主要出现增温现象,江北地区主要出现降温现象;MK突变检验结果显示,江南地区的高温日和江北的低温日均在2006年左右发生...

Using daily temperature data of 120 stations in the middle and lower reaches of the Yangtze River during 1971-2015, the variations of average temperature before and after the operation of Three Gorges Dam in four seasons (spring, summer, autumn and winter) were analyzed after removing the impacts of global warming background, the mutation times of high and low temperature days were investigated by the MK test method. Furthermore, the change in soil moisture was investigated by utilizing ERA-Interim soil moisture reanalysis data during 2006-2015, and the vegetation response to the temperature v...