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Journal of Agriculture ›› 2021, Vol. 11 ›› Issue (1): 27-31.doi: 10.11923/j.issn.2095-4050.cjas20190500039

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Coastal Saline Soil in Jiangsu: Desalting Technologies and Application Prospect

Sun Licai1,2(), Cui Shiyou1(), Zhang Jiao1, Zhai Caijiao1   

  1. 1Jiangsu Yanjiang Institute of Agricultural Sciences/ Nantong Public Technology Service Platform of Salt-tolerant Plants, Nantong 226541, Jiangsu, China
    2Institute of Geochemical Exploration and Marine Geological Survey, Nanjing 210007, Jiangsu, China
  • Received:2019-05-14 Revised:2019-07-31 Online:2021-01-20 Published:2021-02-05
  • Contact: Cui Shiyou E-mail:454330353@qq.com;cuisy198@163.com

Abstract:

Coastal beach is the main land reserve resource in Jiangsu Province, and the exploitation, utilization and protection of coastal saline soil have been highlighted by governments at all levels. In this paper, three major desalination technologies for coastal saline soil based on the concept of salt balance index were summarized, including leaching by rainwater and brackish water, reducing salt accumulation in root zone by preventing capillary rise of groundwater, and biological desalting technology. In the practice of beach desalting and soil improvement, Jiangsu Province has formed its own technical system of desalination of coastal beach with the integration of the three technologies, including amelioration of saline soil by fish farming in mudflat pond, paddy cultivation by irrigation of brackish water, dry farming with straw mulching, and afforestation under straw mulching. It is expected that these technologies will provide effective technical support for the development and utilization of coastal tidal flat resources in Jiangsu Province.

Key words: Coastal Saline Soil, Salt Balance Index, Desalination, Straw Mulching, Jiangsu

CLC Number: