Effects of rainwater harvesting system on soil moisture in rain-fed orchards on the Chinese Loess Plateau

doi:10.1016/j.agwat.2020.106496

	Effects of rainwater harvesting system on soil moisture in rain-fed orchards on the Chinese Loess Plateau
	Ding, Wenbin 3; Wang, Fei 1,3,4; Dong, Yunyun 3; Jin, Kai 2; Cong, Chenyu 3; Han, Jianqiao 1,3,4; Ge, Wenyan 1,3,4
刊名	AGRICULTURAL WATER MANAGEMENT
	2021
卷号	243 页码:10
关键词	Rainwater harvesting systems Precipitation Soil moisture Rain-fed orchards Loess plateau
ISSN号	0378-3774
DOI	10.1016/j.agwat.2020.106496
通讯作者	Wang, Fei(wafe@ms.iswc.ac.cn)
英文摘要	Rainwater is a primary water source for the hilly and gully region of the Loess Plateau where an improved efficiency of rainwater utilization is crucial for sustainable agricultural development. A new system, comprised of rainwater harvesting, concentrating infiltration with multi-holed pipe and mulching (RIM), was designed to sustain soil moisture at a proper level in rain-fed orchards in the hilly and gully loess region of China. This study monitored changes in soil moisture and distribution over soil profiles using four treatments: (a) RIM1 with two rainwater harvesting areas, two infiltration pipes and film mulching, (b) RIM2 with one rainwater harvesting area, one infiltration pipe and film mulching, (c) film mulching (FM) only and (d) traditional apple orchard as a control treatment (CK) as a baseline in this experiment. The results showed that mean soil moisture content (SMC) in a range of soil layer between 0 cm and 300 cm for RIM1 and RIM2 treatments increased by 43.01% and 34.78% in 2018 and 30.55% and 26.41% in 2019, respectively. Dividing the soil vertical profile into three layers, i.e., an easy-changing layer (0-60 cm), an increasing or decreasing layer (60-180 cm), and a relatively steady layer (180-300 cm), this study examined the vertical changes of soil moisture. The RIM1 and RIM2 treatments induced a large increase in the size and depth of wetted areas over the whole soil layers. The soil moisture was replenished to a horizontal distance of 1.5 m and 2.5 m apart from the trunk within the soil layer between 60 cm and 300 cm under the RIM1 treatment while only the horizontal distance of 1.5 m apart from the trunk under the RIM2 treatment. While the seasonal variation of SMC in the easy-changing soil layer (0-60 cm) corresponded to precipitation consistently, the SMC in the deep soil layers (60-300 cm) was not sensitive to precipitation. As a result, the treatments of RIM1, RIM2 and FM improved apple yield and crop water productivity compared with those under the control treatment. In particular, the RIM1 treatment performed the best among the treatments investigated in this study. The results highlighted the efficiency of the RIM system in enhancing the soil moisture, which may be useful to improve an orchard production for rain-fed orchards in the loess hilly and gully region of China.
资助项目	National Science Foundation of China[41771558] ; External Cooperation Program of BIC, Chinese Academy of Sciences[16146KYSB20150001] ; National Key Research and Development Program of China[2016YFC0501707] ; European Union[635750]
WOS关键词	WATER-UPTAKE ; FINE ROOTS ; VERTICAL-DISTRIBUTION ; SPATIAL-DISTRIBUTION ; APPLE ORCHARDS ; HILLY REGION ; CATCHMENT ; YIELD ; QUANTIFICATION ; RESTORATION
WOS研究方向	Agriculture ; Water Resources
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000594657700008
资助机构	National Science Foundation of China ; External Cooperation Program of BIC, Chinese Academy of Sciences ; National Key Research and Development Program of China ; European Union
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/137268]
专题	中国科学院地理科学与资源研究所
通讯作者	Wang, Fei
作者单位	1.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 2.Qingdao Agr Univ, Coll Resources & Environm, Qingdao 266109, Shandong, Peoples R China 3.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 4.Univ Chinese Acad Sci, Beijing 10049, Peoples R China
推荐引用方式 GB/T 7714	Ding, Wenbin,Wang, Fei,Dong, Yunyun,et al. Effects of rainwater harvesting system on soil moisture in rain-fed orchards on the Chinese Loess Plateau[J]. AGRICULTURAL WATER MANAGEMENT,2021,243:10.
APA	Ding, Wenbin.,Wang, Fei.,Dong, Yunyun.,Jin, Kai.,Cong, Chenyu.,...&Ge, Wenyan.(2021).Effects of rainwater harvesting system on soil moisture in rain-fed orchards on the Chinese Loess Plateau.AGRICULTURAL WATER MANAGEMENT,243,10.
MLA	Ding, Wenbin,et al."Effects of rainwater harvesting system on soil moisture in rain-fed orchards on the Chinese Loess Plateau".AGRICULTURAL WATER MANAGEMENT 243(2021):10.