IGSNRR OpenIR
Canopy pruning as a strategy for saving water in a dry land jujube plantation in a loess hilly region of China
Ma Lihui1,2; Wang Xing1; Gao Zhiyong3; Wang Youke1; Nie Zhenyi2; Liu Xiaoli2
2019-05-01
Source PublicationAGRICULTURAL WATER MANAGEMENT
ISSN0378-3774
Volume216Pages:436-443
Corresponding AuthorWang Xing(404270234@qq.com)
AbstractAims: Soil drying has occurred widely in artificial plantations in the semiarid loess region because the water consumption exceeds the rainfall. Jujube (Ziziphus jujube Mill. CV. Lizao) plantations have been planted to improve the economic income since 2000. In order to prevent soil drying and sustain artificial plantation development, we examined the relationships between the canopy size, water consumption, and water use efficiency in a dry land jujube plantation. Methods: Seven treatments were tested comprising native jujube with no pruning and dwarfing jujube under different pruning levels ranging from 1 to 6. Jujube is a popular dwarfing canopy type in this region with a tree height of 2.2 m and this comprised level 1. Jujube received increased intensities of pruning as well as decreases in tree height and canopy size for levels 2-4. Jujube received severe pruning to a tree height of only 1.1 m at level 5, and the canopy was removed with only 30-40 cm of the trunk left for level 6. Soil water was detected using CNC100 neutron tubes. A thermal diffusion probe was used to monitor the sap flow in jujube trees throughout the whole growth period. Results: During our study period, 2014 was a wet year with rainfall of 460.4 mm and 2015 was a dry year with rainfall of only 380.8 mm. Transpiration and water consumption by jujube decreased significantly whereas the soil water content increased as the pruning intensity increased in these two years. Compared with 15-year-old native jujube, the annual soil water consumption by 15-year-old dwarfing jujube (pruned at level 1) was 6.54 mm less and the soil water consumption depth moved upward by 2.2 m. The soil water recovered faster for jujube at level 6 and the soil water restoration depth reached 4.6 m after 3 years, with an annual restoration depth of 153.3 cm. Compared with level 1 jujube, at level 5, the height was halved, the transpiration was about 22.1%, and the water use efficiency was significantly improved by 1.1 times, thereby demonstrating that the water consumption could be regulated by the canopy size. Level 2 jujube had the highest water use efficiency with the optimal pruning level in the local region. Conclusions: We found that pruning could effectively decrease water consumption, relieve deep soil drying, and improve the water use efficiency in jujube. The pruning level should be determined based on the water consumption rate and average rainfall to obtain high yields.
KeywordJujube plantation Loess region Pruning Transpiration Water consumption Water use efficiency
DOI10.1016/j.agwat.2018.12.007
WOS KeywordDOUGLAS-FIR ; SAP FLOW ; PLATEAU ; TRANSPIRATION ; TREES
Indexed BySCI
Language英语
Funding ProjectNational Science Foundation of China[41671510] ; Fund of State Key Laboratory[A318009902-1507] ; Science Technology coordination & Innovation Project in Shaanxi Province[216KTZDNY-01-04]
Funding OrganizationNational Science Foundation of China ; Fund of State Key Laboratory ; Science Technology coordination & Innovation Project in Shaanxi Province
WOS Research AreaAgriculture ; Water Resources
WOS SubjectAgronomy ; Water Resources
WOS IDWOS:000461262400040
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/49324
Collection中国科学院地理科学与资源研究所
Corresponding AuthorWang Xing
Affiliation1.Northwest A&F Univ, 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
2.Northwest A&F Univ, Coll Water Resources & Architectural Engn, Yangling 712100, Shaanxi, Peoples R China
3.Xian Univ Technol, Minist Educ, Key Lab Northwest Water Resource & Ecol Environm, Xian 710048, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Ma Lihui,Wang Xing,Gao Zhiyong,et al. Canopy pruning as a strategy for saving water in a dry land jujube plantation in a loess hilly region of China[J]. AGRICULTURAL WATER MANAGEMENT,2019,216:436-443.
APA Ma Lihui,Wang Xing,Gao Zhiyong,Wang Youke,Nie Zhenyi,&Liu Xiaoli.(2019).Canopy pruning as a strategy for saving water in a dry land jujube plantation in a loess hilly region of China.AGRICULTURAL WATER MANAGEMENT,216,436-443.
MLA Ma Lihui,et al."Canopy pruning as a strategy for saving water in a dry land jujube plantation in a loess hilly region of China".AGRICULTURAL WATER MANAGEMENT 216(2019):436-443.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Ma Lihui]'s Articles
[Wang Xing]'s Articles
[Gao Zhiyong]'s Articles
Baidu academic
Similar articles in Baidu academic
[Ma Lihui]'s Articles
[Wang Xing]'s Articles
[Gao Zhiyong]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Ma Lihui]'s Articles
[Wang Xing]'s Articles
[Gao Zhiyong]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.