干旱区生态环境知识资源中心(Arid): Evaluating the impact of karst rocky desertification on regional climate in Southwest China with WRF

Arid

DOI	10.1007/s00704-018-2606-2
	Evaluating the impact of karst rocky desertification on regional climate in Southwest China with WRF
	Yang, Weilin 1,2; Chu, Wenchao 2,3; Zhou, Limin 2
通讯作者	Zhou, Limin
来源期刊	THEORETICAL AND APPLIED CLIMATOLOGY
ISSN	0177-798X
EISSN	1434-4483
出版年	2019
卷号	137 期号:1-2 页码:481-492
英文摘要	It has been confirmed that the karst rocky desertification (KRD) has severely changed the interactions between atmosphere and terrestrial ecosystem which would cause a significant effect on regional climate system. In this study, the Weather and Research Forecasting model was applied to investigate the biogeophysical impact on temperature and precipitation change by land use/land cover change data with different KRD conditions in 1993, 2003, and 2013 in Southwest China. The results showed that an improving trend of KRD has been found in Southwest China, especially in east Sichuan, Chungking, southwest Yunnan, and south Guangxi. The 2-m air temperature decreased by 0 similar to-1 degrees C in general with this improving trend. The possible reason was the decreasing KRD accompanied by the decreasing albedo, causing the increasing net shortwave radiation and the increasing net radiation. Meanwhile, the increasing evaporation strengthened the latent heat flux and weakened the sensible heat flux so that decreased temperature was addressed in forest areas. The effect of KRD change transferred to the upper troposphere through atmosphere vertical convection, which made the subtropical high to be strengthened and westerly extended. Therefore, the upward moisture flux at the surface (QFX) was weakened in the central part of Guangxi, southern Guizhou, which led to the decrease of the precipitation. Moreover, the southwest monsoon was strengthened, which caused the increasing water vapor flux and led to the heavy rainfall in the west of Yunnan.
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000475737500035
WOS关键词	LAND-COVER CHANGE ; USE/LAND COVER ; TEMPERATURE ; AUSTRALIA ; FORESTS
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
来源机构	北京大学 ; 清华大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219089
作者单位	1.Peking Univ, Coll Urban & Environm Sci, Beijing 100871, Peoples R China; 2.China Normal Univ, Sch Geog Sci, Key Lab Geog Informat Sci, Minist Educ, Shanghai 200241, Peoples R China; 3.Tsinghua Univ, Ctr Earth Syst Sci, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Yang, Weilin,Chu, Wenchao,Zhou, Limin. Evaluating the impact of karst rocky desertification on regional climate in Southwest China with WRF[J]. 北京大学, 清华大学,2019,137(1-2):481-492.
APA	Yang, Weilin,Chu, Wenchao,&Zhou, Limin.(2019).Evaluating the impact of karst rocky desertification on regional climate in Southwest China with WRF.THEORETICAL AND APPLIED CLIMATOLOGY,137(1-2),481-492.
MLA	Yang, Weilin,et al."Evaluating the impact of karst rocky desertification on regional climate in Southwest China with WRF".THEORETICAL AND APPLIED CLIMATOLOGY 137.1-2(2019):481-492.