Approach of water—salt regulation using micro-sprinkler irrigation in two coastal saline soils

Lin-lin Chu; Yu Zhu; Ling Xiong; Rong-yu Huang; Yao-hu Kang; Zhan-peng Liu; Xiao-ming Geng

doi:10.1016/j.wse.2022.10.002

Volume 16 Issue 1

Mar. 2023

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Article Navigation > Water Science and Engineering > 2023 > 16(1): 106-112

Lin-lin Chu, Yu Zhu, Ling Xiong, Rong-yu Huang, Yao-hu Kang, Zhan-peng Liu, Xiao-ming Geng. 2023: Approach of water—salt regulation using micro-sprinkler irrigation in two coastal saline soils. Water Science and Engineering, 16(1): 106-112. doi: 10.1016/j.wse.2022.10.002

Citation:

Lin-lin Chu, Yu Zhu, Ling Xiong, Rong-yu Huang, Yao-hu Kang, Zhan-peng Liu, Xiao-ming Geng. 2023: Approach of water—salt regulation using micro-sprinkler irrigation in two coastal saline soils. Water Science and Engineering, 16(1): 106-112. doi: 10.1016/j.wse.2022.10.002

Citation:

Lin-lin Chu, Yu Zhu, Ling Xiong, Rong-yu Huang, Yao-hu Kang, Zhan-peng Liu, Xiao-ming Geng. 2023: Approach of water—salt regulation using micro-sprinkler irrigation in two coastal saline soils. Water Science and Engineering, 16(1): 106-112. doi: 10.1016/j.wse.2022.10.002

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Approach of water—salt regulation using micro-sprinkler irrigation in two coastal saline soils

doi: 10.1016/j.wse.2022.10.002

a College of Agricultural Science and Engineering, Hohai University, Nanjing 210098, China;
b Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;
c Nanjing Jiangdi Land Development Consulting Service Co., Ltd, Nanjing 210036, China;
d Nanjing Qinhuai River Management Office, Nanjing 210012, China

Funds:

This work was supported by the China Scholarship Council (Grant No. 201906715015) and the Priority Academic Development Program of Jiangsu Higher Education Institutions.

Received Date: 2021-12-17
Accepted Date: 2022-10-17
Rev Recd Date: 2022-09-22

Abstract

Abstract

This study aimed to investigate whether saline silt and sandy loam coastal soils could be reclaimed by micro-sprinkler irrigation. The experiments were run using moderately salt-tolerant tall fescue grass. Micro-sprinkler irrigation in three stages was used to regulate soil matric potential at a 20-cm soil depth. Continued regulation of soil water and salt through micro-sprinkler irrigation consistently resulted in an increasingly large low-salinity region. The application of the three stages of soil water—salt regulation resulted in an absence of salt accumulation throughout the soil profile and the conversion of highly saline soils into moderately saline soils. There were increases in the plant height, leaf width, leaf length, and tiller numbers of tall fescue throughout the leaching process. The results showed that micro-sprinkler irrigation in three soil water and salt regulation stages can be used to successfully cultivate tall festuca in highly saline coastal soil. This approach achieved better effects in sandy loam soil than in silt soil. Tall fescue showed greater survival rates in sandy loam soil due to the rapid reclamation process, whereas plant growth was higher in silt soil because of effective water conservation. In sandy loam, soil moisture should be maintained during soil reclamation, and in silt soil, soil root-zone environments optimal for the emergence of plants should be quickly established. Micro-sprinkler irrigation can be successfully applied to the cultivation of tall fescue in coastal heavy saline soils under a three-stage soil water—salt regulation regime.
- Coastal saline soils,
- Micro-sprinkler irrigation,
- Salt leaching,
- Tall fescue,
- Water—salt regulation

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References(25)

References

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