Dual plastic film and straw mulching boosts wheat productivity and soil quality under the El Nino in semiarid Kenya

doi:10.1016/j.scitotenv.2020.139808

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	Dual plastic film and straw mulching boosts wheat productivity and soil quality under the El Nino in semiarid Kenya
	Luo, Chong-Liang ; Zhang, Xiao-Feng ; Duan, Hai-Xia ; Mburu, David M.; Ren, Hong-Xu ; Kavagi, Levis 4; Dai, Run-Zi ; Xiong, You-Cai
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2020
卷号	738
关键词	Plastic film mulching Straw mulching Wheat productivity Soil organic carbon Soil hydro-thermal status Sub-Saharan Africa
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2020.139808
文献子类	Article
英文摘要	The extreme climate events such as El Nino seriously threaten crop production and agro-ecological sustainability because of the aggravated environmental stresses worldwide, particularly in sub-Saharan Africa. To address this issue, we investigated the effects of dual plastic film and straw mulching in ridge-furrow(RF) system on wheat productivity, soil carbon and nitrogen stocks in a semiarid area in Kenya from 2015 to 2017. The experimental site represents a typical semiarid continental monsoon climate, and soil type is chromic vertisols. Field experiment with randomized block design consisted of six RF treatments as follows: 1) dual black plastic film and straw mulching (RFbS), 2) dual transparent plastic film and straw mulching (RFtS), 3) sole black plastic film mulching (RFb), 4) sole transparent plastic mulching RF (RFt), 5) sole straw mulching (RFS) and 6) no mulching (CK). The results indicated that seasonal dynamics of rainfall and air temperature fit in with the weather type of El Nino over four growing seasons. RFbS, RFtS, RFb and RFt significantly increased soil water storage (SWS), topsoil temperature, aboveground biomass, grain yield and water use efficiency across four growing seasons (p < 0.05) as compared with CK. Among all the treatments, RFbS and RFtS achieved the greatest SWS, AgB, grain yield and WUE, owing to improved soil hydrothermal status in both treatments. Critically, RFbS and RFtS significantly improved soil organic carbon and total nitrogen, soil bulk density and the C:N ratio following four growing seasons, comparing with other treatments (p < 0.05). Besides, RFbS and RFtS gave the highest economic returns among all treatments. For the first time, we found that dual plastic film and straw mulching could serve as a sustainable land management to boost wheat productivity and improve soil quality under El Nino in semiarid areas of SSA. (C) 2020 Elsevier B.V. All rights reserved.
学科主题	Environmental Sciences
电子版国际标准刊号	1879-1026
出版地	AMSTERDAM
WOS关键词	WATER-USE EFFICIENCY ; TRITICUM-AESTIVUM L. ; LOESS PLATEAU ; RIDGE-FURROW ; CONSERVATION AGRICULTURE ; MAIZE YIELD ; ORGANIC-CARBON ; WINTER-WHEAT ; GRAIN-YIELD ; DRYLAND WHEAT
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000560045500009
资助机构	International Cooperation ProgramofMinistry of Science and Technology of China [2015DFG31840] ; Fundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central Universities [561220012] ; Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31570415] ; National Specialized Support Plan for Outstanding Talents (Ten Thousand People Plan)
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/21627]
专题	植被与环境变化国家重点实验室
作者单位	1.United Nations Environm Programme, POB 47074-00100, Nairobi, Kenya 2.Lanzhou Univ, Sch Life Sci, Inst Arid Agroecol, State Key Lab Grassland Agroecosyst, Lanzhou 730000, Peoples R China 3.Mburu, David M.] Jomo Kenyatta Univ Agr & Technol, Fac Agr, Juja, Kenya 4.Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Luo, Chong-Liang,Zhang, Xiao-Feng,Duan, Hai-Xia,et al. Dual plastic film and straw mulching boosts wheat productivity and soil quality under the El Nino in semiarid Kenya[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,738.
APA	Luo, Chong-Liang.,Zhang, Xiao-Feng.,Duan, Hai-Xia.,Mburu, David M..,Ren, Hong-Xu.,...&Xiong, You-Cai.(2020).Dual plastic film and straw mulching boosts wheat productivity and soil quality under the El Nino in semiarid Kenya.SCIENCE OF THE TOTAL ENVIRONMENT,738.
MLA	Luo, Chong-Liang,et al."Dual plastic film and straw mulching boosts wheat productivity and soil quality under the El Nino in semiarid Kenya".SCIENCE OF THE TOTAL ENVIRONMENT 738(2020).