Characteristics of Seashore Saline Soils in Guangdong Province and Improvement Strategies

Peizhi XU; Wenju DAI; Xu HUANG; Bishan LIN; Zhaobing ZENG; Qiao ZHANG; Kaizhi XIE

doi:10.16768/j.issn.1004-874X.2023.02.010

Guangdong nongye kexue (Feb 2023)

Characteristics of Seashore Saline Soils in Guangdong Province and Improvement Strategies

Peizhi XU,
Wenju DAI,
Xu HUANG,
Bishan LIN,
Zhaobing ZENG,
Qiao ZHANG,
Kaizhi XIE

Affiliations

Peizhi XU: Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
Wenju DAI: Guangdong Agricultural Environment and Arable Land Quality Protection Center, Guangzhou 510000, China
Xu HUANG: Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
Bishan LIN: Guangdong Agricultural Environment and Arable Land Quality Protection Center, Guangzhou 510000, China
Zhaobing ZENG: Guangdong Agricultural Environment and Arable Land Quality Protection Center, Guangzhou 510000, China
Qiao ZHANG: Guangdong Agricultural Environment and Arable Land Quality Protection Center, Guangzhou 510000, China
Kaizhi XIE: Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China

DOI: https://doi.org/10.16768/j.issn.1004-874X.2023.02.010
Journal volume & issue: Vol. 50, no. 2
pp. 87 – 94

Abstract

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Seashore saline soil is a kind of soil formed after the sediments flowing into the sea with surface runoff or shallow sea sediments lifted up by wind and waves, flocculated and deposited in the intertidal zone under the action of tides and ocean currents, and finally exposed to the sea surface as the result of continuously silting up. The seashore saline soil in Guangdong Province is rich in resources, mainly distributed in Zhanjiang, Zhuhai, Jiangmen, Shantou and other places, and has an extremely important strategic position in the coastal economic development. Seashore saline soil is one of the main types of low and medium yielding fields, and the soils are characterized by high salt content and salinization. Due to the high nutrient content, rich soil organic matter and high potential fertility, they can become good fields through appropriate improvement measures. The management strategies of seashore saline soil utilization include isolating seawater from invading farmland again through engineering measures; improving drainage and irrigation conditions, applying rainwater dewatering and desalination technology, using artificial dewatering and desalination technology, planting combined wtih dewatering and desalination technology and other measures to drain and reduce salt. The sustainable utilization of seashore saline soil can be realized through soil improvement, scientific fertilization, root strengthening cultivation, selection of rice varieties resistant to salt or aquatic crop rotation and other technical measures. The seashore saline soil is an important reserve resource for the future development of arable land in Guangdong Province, and the full development and utilization of seashore saline soil is of great significance in increasing the sown area of grain, expanding arable land resources and ensuring food security. Based on the current situation of seashore saline soils in Guangdong, it is proposed to attach great imporntance to the special investigation of eashore saline soil resources, strengthen financial investment, promote scientific research, and establish long-term positioning observation stations for comprehensive management.

Published in Guangdong nongye kexue

ISSN: 1004-874X (Print)
Publisher: Guangdong Academy of Agricultural Sciences
Country of publisher: China
LCC subjects: Agriculture
Website: http://gdnykx.cnjournals.org/gdnykx/ch/index.aspx

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