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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

文献类型：期刊论文

作者Zhao, XN (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China.; Xiaolin Song1,6; Xiaodong Gao1,7; Miles Dyck3; Wei Zhang1,2; Pute Wu6,7; Jie Yao4; Xining Zhao1,7
刊名CATENA
出版日期2018
卷号170页码:324-334
关键词Apple Tree Dry Root Weight Density Maximum Rooting Depth Soil Moisture Depletion Stand Age
ISSN号0341-8162
DOI10.1016/j.catena.2018.06.026
文献子类Article
英文摘要Soil 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.
学科主题Geology ; Agriculture ; Water Resources
出版地PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
语种英语
WOS记录号WOS:000441681500028
出版者ELSEVIER SCIENCE BV
资助机构National 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] ; National 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]
源URL[http://ir.iswc.ac.cn/handle/361005/8176]  
专题水保所科研产出--SCI_2018--SCI
通讯作者Zhao, XN (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China.
作者单位1.Northwest A&F Univ, Inst Water Saving Agr Arid Areas China, Yangling 712100, Shaanxi, Peoples R China
2.Natl Engn Res Ctr Water Saving Irrigat Yangling, Yangling 712100, Shaanxi, Peoples R China
3.Univ Alberta, Dept Renewable Resources, Edmonton, AB, Canada
4.Baota Dist Fruit Bur Yanan City, Yanan 716000, Peoples R China
5.Northwest A&F Univ, Inst Water Conservancy & Architectural Engn, Yangling 712100, Shaanxi, Peoples R China
6.Northwest A&F Univ, Coll Mech & Elect Engn, Yangling 712100, Shaanxi, Peoples R China
7.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Zhao, XN ,Xiaolin Song,Xiaodong Gao,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 Zhao, XN .,Xiaolin Song.,Xiaodong Gao.,Miles Dyck.,Wei Zhang.,...&Xining Zhao.(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 Zhao, XN ,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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