干旱区生态环境知识资源中心(Arid): Regional climate effects of plastic film mulch over the cropland of arid and semi-arid regions in Northwest China using a regional climate model

Arid

DOI	10.1007/s00704-019-02974-x
	Regional climate effects of plastic film mulch over the cropland of arid and semi-arid regions in Northwest China using a regional climate model
	Wu, Liyang 1,2,3; Qin, Fen 1,2,3; Feng, Jinming 4; Huang, Jinting 1,2,3
通讯作者	Qin, Fen
来源期刊	THEORETICAL AND APPLIED CLIMATOLOGY
ISSN	0177-798X
EISSN	1434-4483
出版年	2020
卷号	139 期号:1-2 页码:335-349
英文摘要	Plastic film mulch, which effectively maintains soil moisture by suppressing soil evaporation, has been widely used in cropland in Northwest China, where water scarcity severely restricts agricultural development. Plastic mulch affects surface albedo and blocks water vapor exchange between soil and atmosphere. Therefore, the large area of cropland covered by plastic film will have serious impacts on regional climate by modifying the surface-atmosphere partitioning of vapor and energy. In this study, a dynamic irrigation scheme was incorporated into the Weather Research and Forecasting model with Noah land surface scheme; two experiments (with and without plastic mulch) were designed to simulate the impacts of plastic mulch over cropland in Northwest China on regional climate. In irrigated cropland, the irrigation amount decreased substantially during the early stage of crop growth (ESCG; from 22 April to 1 July) with plastic mulch, especially in May, indicating that plastic mulch conserved agricultural water. In nonirrigated cropland, soil moisture in cropland with plastic mulch was clearly greater than that without plastic mulch. The influences of plastic mulch on land surface processes were mainly reflected in the ESCG, such that upward shortwave radiation increased and latent heat flux decreased. In cropland during the ESCG, after plastic mulch, the latent heat flux decreased significantly by 12-30 W m(-2), the sensible heat flux increased significantly by 8-16 W m(-2), and the surface air temperature increased significantly by 0.2-0.8 degrees C. The plastic mulch reduced water vapor in the lower atmosphere, which might lead to decrease precipitation in Northwest China.
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:000511515200023
WOS关键词	SOIL-MOISTURE ; SURFACE ALBEDO ; IRRIGATION ; WATER ; XINJIANG ; FLUXES ; HEAT ; EVAPOTRANSPIRATION ; AGROECOSYSTEMS ; PLAIN
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
来源机构	中国科学院大气物理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315650
作者单位	1.Henan Univ, Coll Environm & Planning, Kaifeng 475004, Peoples R China; 2.Henan Univ, Key Lab Geospatial Technol Middle & Lower Yellow, Minist Educ, Kaifeng 475004, Peoples R China; 3.Henan Univ, Henan Ind Technol Acad Spatiotemporal Big Data, Kaifeng 475004, Peoples R China; 4.Chinese Acad Sci, Inst Atmospher Phys, CAS Key Lab Reg Climate Environm Temperate East A, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Wu, Liyang,Qin, Fen,Feng, Jinming,et al. Regional climate effects of plastic film mulch over the cropland of arid and semi-arid regions in Northwest China using a regional climate model[J]. 中国科学院大气物理研究所,2020,139(1-2):335-349.
APA	Wu, Liyang,Qin, Fen,Feng, Jinming,&Huang, Jinting.(2020).Regional climate effects of plastic film mulch over the cropland of arid and semi-arid regions in Northwest China using a regional climate model.THEORETICAL AND APPLIED CLIMATOLOGY,139(1-2),335-349.
MLA	Wu, Liyang,et al."Regional climate effects of plastic film mulch over the cropland of arid and semi-arid regions in Northwest China using a regional climate model".THEORETICAL AND APPLIED CLIMATOLOGY 139.1-2(2020):335-349.