中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Variation of Thornthwaite moisture index in Hengduan Mountains, China

文献类型:期刊论文

作者Zhu Guofeng1,2; Qin Dahe2; Tong Huali1; Liu Yuanfeng1; Li Jiafang1; Chen Dongdong1; Wang Kai1; Hu Pengfei1
刊名CHINESE GEOGRAPHICAL SCIENCE
出版日期2016-10-01
卷号26期号:5页码:687-702
关键词Thornthwaite moisture index Normalized Difference Vegetation Index (NDVI) Kriging interpolation Hengduan Mountains
ISSN号1002-0063
DOI10.1007/s11769-016-0820-3
通讯作者Zhu Guofeng(gfzhu@lzb.ac.cn)
英文摘要The Thornthwaite moisture index, an index of the supply of water (precipitation) in an area relative to the climatic demand for water (potential evapotranspiration), was used to examine the spatial and temporal variation of drought and to verify the influence of environmental factors on the drought in the Hengduan Mountains, China. Results indicate that the Thornthwaite moisture index in the Hengduan Mountains had been increasing since 1960 with a rate of 0.1938/yr. Annual Thornthwaite moisture index in Hengduan Mountains was between -97.47 and 67.43 and the spatial heterogeneity was obvious in different seasons. Thornthwaite moisture index was high in the north and low in the south, and the monsoon rainfall had a significant impact on its spatial distribution. The tendency rate of Thornthwaite moisture index variation varied in different seasons, and the increasing trends in spring were greater than that in summer and autumn. However, the Thornthwaite moisture index decreased in winter. Thornthwaite moisture index increased greatly in the north and there was a small growth in the south of Hengduan Mountains. The increase of precipitation and decrease of evaporation lead to the increase of Thornthwaite moisture index. Thornthwaite moisture index has strong correlation with vegetation coverage. It can be seen that the correlation between Normalized Difference Vegetation Index (NDVI) and Thornthwaite moisture index was positive in spring and summer, but negative in autumn and winter. Correlation between Thornthwaite moisture index and relative soil relative moisture content was positive in spring, summer and autumn, but negative in winter. The typical mountainous terrain affect the distribution of temperature, precipitation, wind speed and other meteorological factors in this region, and then affect the spatial distribution of Thornthwaite moisture index. The unique ridge-gorge terrain caused the continuity of water-heat distribution from the north to south, and the water-heat was stronger than that from the east to west part, and thus determined the spatial distribution of Thornthwaite moisture index. The drought in the Hengduan Mountains area is mainly due to the unstable South Asian monsoon rainfall time.
收录类别SCI
WOS关键词DROUGHT SEVERITY INDEX ; CLIMATE-CHANGE ; SOIL-MOISTURE ; POTENTIAL EVAPOTRANSPIRATION ; SPATIAL-DISTRIBUTION ; WATER-BALANCE ; UNITED-STATES ; MODEL ; CATCHMENT ; TRENDS
WOS研究方向Environmental Sciences & Ecology
WOS类目Environmental Sciences
语种英语
WOS记录号WOS:000382656700010
出版者SPRINGER
URI标识http://www.irgrid.ac.cn/handle/1471x/2557446
专题寒区旱区环境与工程研究所
通讯作者Zhu Guofeng
作者单位1.Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Peoples R China
2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Cryosphere Sci, Lanzhou 730000, Peoples R China
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Zhu Guofeng,Qin Dahe,Tong Huali,et al. Variation of Thornthwaite moisture index in Hengduan Mountains, China[J]. CHINESE GEOGRAPHICAL SCIENCE,2016,26(5):687-702.
APA Zhu Guofeng.,Qin Dahe.,Tong Huali.,Liu Yuanfeng.,Li Jiafang.,...&Hu Pengfei.(2016).Variation of Thornthwaite moisture index in Hengduan Mountains, China.CHINESE GEOGRAPHICAL SCIENCE,26(5),687-702.
MLA Zhu Guofeng,et al."Variation of Thornthwaite moisture index in Hengduan Mountains, China".CHINESE GEOGRAPHICAL SCIENCE 26.5(2016):687-702.

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来源:寒区旱区环境与工程研究所

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