干旱区生态环境知识资源中心(Arid): Straw and plastic management regulate air-soil temperature amplitude and wetting-drying alternation in soil to promote intercrop productivity in arid regions

Arid

DOI	10.1016/j.fcr.2020.107758
	Straw and plastic management regulate air-soil temperature amplitude and wetting-drying alternation in soil to promote intercrop productivity in arid regions
	Yin, Wen 1,2; Chai, Qiang1,2 ; Guo, Yao 1,2; Fan, Zhilong 1,2; Hu, Falong 1,2; Fan, Hong 1; Zhao, Cai 1; Yu, Aizhong 1,2; Coulter, Jeffrey A.3
通讯作者	Chai, Qiang
来源期刊	FIELD CROPS RESEARCH
ISSN	0378-4290
EISSN	1872-6852
出版年	2020
卷号	249
英文摘要	Soil coverage with straw and plastic mulch is a valuable and useful strategy for enhancing crop production in arid regions. However, a better understanding of the mechanism by which this innovative practice drives spatial and temporal variation in soil temperature and water content and improves crop production could guide cropping system optimization. A three-year field experiment was performed with four wheat-maize strip-intercropping treatments: 1) no-tillage with 25 - 30 cm tall wheat straw standing in wheat strips and residual plastic mulching in maize strips (NTS), 2) no-tillage with 25 - 30 cm tall wheat straw mulching in wheat strips and residual plastic mulching in maize strips (NTM), 3) conventional tillage with 25 - 30 cm tall wheat straw incorporation in wheat strips and annual new plastic mulching in maize strips (CTS), and 4) conventional tillage without wheat straw retention in wheat strips and annual new plastic mulching in maize strips (CT). The temporal and spatial variation in soil temperature and soil water content was assessed. NTM had the greatest soil water retention, and increased soil water content in the 0-120 cm soil depth by 6.4, 5.2, and 5.4 % at the wheat independent growing period, intercrops co-growing period, and maize independent growing period, respectively, compared with CT. In the 0-15 cm soil depth, compared with CT, NTS decreased soil temperature by 0.73, 1.18, and 0.85 degrees C, NTM decreased it by 1.35, 1.95, and 1.38 degrees C, during the three aforementioned crop growing periods. With the intercropping treatment, soil temperature in the 0 -15 cm soil depth of maize strips was higher than that of wheat strips with NTS by 1.13, 3.67, and 1.44 degrees C, and with NTM higher by 1.32, 2.97, and 1.75 degrees C, especially higher as 1.38, 4.00,and 1.68 degrees C with CT, during the three aforementioned crop growing periods. According to the value of difference between air and soil temperatures, NTM maintained soil heat in the low temperature season and reduced soil temperature in the high temperature season. These allowed the intercrops to grow in a collaborative state with the NTM treatment during their growing period, it is an important regulation mechanism for growth and development of intercropped wheat and maize. NTM improved total grain yield of wheat plus maize by 14.9 % in comparison to CT. The optimized soil temperature and increased soil moisture for the intercrops' strips with NTM indicates that the integrated set of practices in this treatment can be used as a superior technique to overcome simultaneous water shortage and heat stress in arid irrigated areas of northwestern China.
英文关键词	Intercropping Straw and plastic management Soil temperature Soil moisture Arid regions
类型	Article
语种	英语
国家	Peoples R China ; USA
收录类别	SCI-E
WOS记录号	WOS:000527340900022
WOS关键词	WATER-USE EFFICIENCY ; CROP PRODUCTIVITY ; MAIZE YIELD ; CLIMATE-CHANGE ; LOESS PLATEAU ; RIDGE-FURROW ; GRAIN-YIELD ; BARE SOIL ; GROWTH ; WHEAT
WOS类目	Agronomy
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314508
作者单位	1.Gansu Prov Key Lab Aridland Crop Sci, Lanzhou 730070, Peoples R China; 2.Gansu Agr Univ, Coll Agron, Lanzhou 730070, Peoples R China; 3.Univ Minnesota, Dept Agron & Plant Genet, St Paul, MN 55108 USA
推荐引用方式 GB/T 7714	Yin, Wen,Chai, Qiang,Guo, Yao,et al. Straw and plastic management regulate air-soil temperature amplitude and wetting-drying alternation in soil to promote intercrop productivity in arid regions[J],2020,249.
APA	Yin, Wen.,Chai, Qiang.,Guo, Yao.,Fan, Zhilong.,Hu, Falong.,...&Coulter, Jeffrey A..(2020).Straw and plastic management regulate air-soil temperature amplitude and wetting-drying alternation in soil to promote intercrop productivity in arid regions.FIELD CROPS RESEARCH,249.
MLA	Yin, Wen,et al."Straw and plastic management regulate air-soil temperature amplitude and wetting-drying alternation in soil to promote intercrop productivity in arid regions".FIELD CROPS RESEARCH 249(2020).