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Soil water and root distribution of apple tree (Malus pumila Mill) stands in relation to stand age and rainwater collection and infiltration system (RWCI) in a hilly region of the Loess Plateau, China
Xiaolin Song1,3; Xiaodong Gao2,3; Miles Dyck5; Wei Zhang3,4; Pute Wu1,2; Jie Yao7; Xining Zhao2,3; Zhao, XN (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China.
SubtypeArticle
2018
Source PublicationCATENA
ISSN0341-8162
description.correspondentemailzxn@nwafu.edu.cn
Volume170Pages:324-334
AbstractSoil water status and fine root distribution is the basis of implementing water management in semiarid rain-fed orchards. Exploitation of rainwater is an effective avenue for alleviating water scarcity in semiarid regions since ground water is generally unavailable there. Through the method of space-for-time substitution, we investigated the soil moisture and root distribution along a range of stand ages (6, 9, 12, 18 and 21 years) in rain-fed apple (Malus pumila Mill) orchards and the effects of rainwater collection and infiltration systems (RWCI) on root-zone soil water and fine root distributions in matures apple orchards (21 years) in the semiarid Loess Plateau of China. The results showed that the mean soil moisture content (SMC) in the shallow layer (< 2 m) decreased with apple tree age (6 to 18 years); the deep SMC (> 2 m) was higher than shallow soil layers (< 2 m) in most cases and the SMC increased with depth in stands of all ages. Fine roots (< 2 mm diameter) showed an obvious trend of extending deeper with apple tree age - nearly 8 m in a 12-yr-old apple plantation and > 8 m in plantations > 12 years old. Dry root weight density (RWD) decreased sharply with depth, but densities at each depth were greater in older stands. The RWCI system significantly increased SMCs from the surface down to the maximum rainfall infiltration depth (MRID) (2 m depth) (P < 0.05), especially in the 0.2-1 m soil layer. Further, we found that apple tree water requirements could be sustainably met when RWCI system and a low-volume of irrigation water was applied. The distribution of root system was greatly affected by the RWCI system, which led to higher root densities close to the wetted area in the shallow soil layers (2 m soil depth) under RWCI system, down to a depth of 3 m in the soil. Overall, the application of RWCI system could be an effective water management strategy for providing sustainable water resources for semiarid orchards.
KeywordApple Tree Dry Root Weight Density Maximum Rooting Depth Soil Moisture Depletion Stand Age
Subject AreaGeology ; Agriculture ; Water Resources
DOI10.1016/j.catena.2018.06.026
Indexed BySCI
Publication PlacePO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language英语
WOS IDWOS:000441681500028
PublisherELSEVIER SCIENCE BV
Funding OrganizationNational Natural Science Foundation of China [41401315, 41571506, 51579212] ; National Natural Science Foundation of China [41401315, 41571506, 51579212] ; key development foundation of the Chinese Academy of Sciences [KFZD-SW-306] ; key development foundation of the Chinese Academy of Sciences [KFZD-SW-306] ; Technical Innovation Engineering Project of Shaanxi [2015KTCL02-25] ; Technical Innovation Engineering Project of Shaanxi [2015KTCL02-25]
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8176
Collection水保所科研产出--SCI_2018--SCI
Corresponding AuthorZhao, XN (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China.
Affiliation1.Northwest A&F Univ, Coll Mech & Elect Engn, Yangling 712100, Shaanxi, Peoples R China
2.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
3.Northwest A&F Univ, Inst Water Saving Agr Arid Areas China, Yangling 712100, Shaanxi, Peoples R China
4.Natl Engn Res Ctr Water Saving Irrigat Yangling, Yangling 712100, Shaanxi, Peoples R China
5.Univ Alberta, Dept Renewable Resources, Edmonton, AB, Canada
6.Northwest A&F Univ, Inst Water Conservancy & Architectural Engn, Yangling 712100, Shaanxi, Peoples R China
7.Baota Dist Fruit Bur Yanan City, Yanan 716000, Peoples R China
Recommended Citation
GB/T 7714
Xiaolin Song,Xiaodong Gao,Miles Dyck,et al. Soil water and root distribution of apple tree (Malus pumila Mill) stands in relation to stand age and rainwater collection and infiltration system (RWCI) in a hilly region of the Loess Plateau, China[J]. CATENA,2018,170:324-334.
APA Xiaolin Song.,Xiaodong Gao.,Miles Dyck.,Wei Zhang.,Pute Wu.,...&Zhao, XN .(2018).Soil water and root distribution of apple tree (Malus pumila Mill) stands in relation to stand age and rainwater collection and infiltration system (RWCI) in a hilly region of the Loess Plateau, China.CATENA,170,324-334.
MLA Xiaolin Song,et al."Soil water and root distribution of apple tree (Malus pumila Mill) stands in relation to stand age and rainwater collection and infiltration system (RWCI) in a hilly region of the Loess Plateau, China".CATENA 170(2018):324-334.
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