Soil C and N dynamics and hydrological processes in a maize-wheat rotation field subjected to different tillage and straw management practices

doi:10.1016/j.agee.2019.106616

	Soil C and N dynamics and hydrological processes in a maize-wheat rotation field subjected to different tillage and straw management practices
	Wang, Li 1,3; Yuan, Xiaoliang 3; Liu, Chuang 3; Li, Zhiguo 1,3; Chen, Fang 1,3; Li, Shiqing 4; Wu, Lianhai 2; Liu, Yi 1,3,4
刊名	AGRICULTURE ECOSYSTEMS & ENVIRONMENT
	2019-12-01
卷号	285 页码:9
关键词	Danjiangkou Reservoir Conservation tillage SPACSYS Surface runoff Soil C and N balances
ISSN号	0167-8809
DOI	10.1016/j.agee.2019.106616
通讯作者	Liu, Yi(liuyi@wbgcas.cn)
英文摘要	The impact of farmland nutrient losses on environment security is of serious concern. Conservation tillage led to reduced water and soil losses and increased grain yield, and is therefore one potential solution, but this approach requires an understanding of the complex adaptive traits for environment conditions. In this study, a 4-year field experiment was conducted to quantify the crop yield, runoff and soil water, organic C and N content dynamics in summer maize-winter wheat rations subjected to different tillage and straw management practices. Based on these, the effects of different tillage and straw management regimes on water, C and N balances of the soil-plant system was evaluated with a 11-year model prediction using the SPACSYS model. The treatments used in this study included conventional tillage (CT) with straw removal, conventional tillage with straw returning (CTSR), reduced tillage (RT) with straw removal and reduced tillage with straw returning (RTSR). The results showed that maize yield was remarkably affected by straw returning while there was no significant tillage effect. By contrast, wheat yield showed a high inter-annual variability, but was not significantly influenced by tillage and straw management practices. The soil water balance analysis demonstrated that the treatments with straw returning improved water use efficiency by increasing transpiration while reducing water losses through evaporation and runoff, compared to the straw-removal treatments. The simulations for all of the treatments showed that the soils acted as C and N sinks in the present study. Furthermore, plots that included straw returning amassed more C and N in the soil than the that with straw removal. Our work demonstrates that in maize-wheat rotation slopping land reduced tillage with straw returning is a win-win practice for the equilibrium between agricultural productivity and low soil water, C and N losses.
资助项目	young backbone talents project of Wuhan Botanical Garden, Chinese Academy of Sciences ; National Natural Science Foundation of China[31670528] ; Open Funding Project of the State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau[A314021402-1810] ; BBSRC[BBS/E/C/000I0320]
WOS关键词	GREENHOUSE-GAS EMISSIONS ; WATER-USE EFFICIENCY ; ORGANIC-CARBON ; CONSERVATION TILLAGE ; CROPPING SYSTEMS ; LOESS PLATEAU ; RESIDUE MANAGEMENT ; NITROGEN DYNAMICS ; NUTRIENT LOSSES ; CITRUS ORCHARDS
WOS研究方向	Agriculture ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000500213400007
资助机构	young backbone talents project of Wuhan Botanical Garden, Chinese Academy of Sciences ; National Natural Science Foundation of China ; Open Funding Project of the State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau ; BBSRC
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/130716]
专题	中国科学院地理科学与资源研究所
通讯作者	Liu, Yi
作者单位	1.Chinese Acad Sci, Core Bot Gardens, Ctr Conservat Biol Econ Bot Plant Ecol, Wuhan 430074, Hubei, Peoples R China 2.Rothamsted Res, Sustainable Agr Sci, North Wyke EX20 2SB, Okehampton, England 3.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed, Wuhan 430074, Hubei, Peoples R China 4.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Wang, Li,Yuan, Xiaoliang,Liu, Chuang,et al. Soil C and N dynamics and hydrological processes in a maize-wheat rotation field subjected to different tillage and straw management practices[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2019,285:9.
APA	Wang, Li.,Yuan, Xiaoliang.,Liu, Chuang.,Li, Zhiguo.,Chen, Fang.,...&Liu, Yi.(2019).Soil C and N dynamics and hydrological processes in a maize-wheat rotation field subjected to different tillage and straw management practices.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,285,9.
MLA	Wang, Li,et al."Soil C and N dynamics and hydrological processes in a maize-wheat rotation field subjected to different tillage and straw management practices".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 285(2019):9.