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Characteristics of Soil Salinity in Representative Plastic Shed Vegetable Production Areas in Shandong Province, China

文献类型： 外文期刊

作者： Sun, Kaining 1 ; Zhang, Jianfeng 2 ; Zhang, Weihua 1 ; Zhou, Wei 3 ; Wang, Junfeng 1 ;

作者机构： 1.Shandong Acad Agr Sci, Inst Vegetables, Shandong Branch Natl Improvement Ctr Vegetables, Shandong Key Lab Greenhouse Vegetable Biol,Huang H, Jinan 250100, Shandong, Peoples R China

2.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China

3.Chinese Acad Sci, Inst Soil Sci, 71 East Beijing Rd, Nanjing 210008, Peoples R China

关键词： greenhouse; total soluble salt; soil organic matter; chemical fertilizer

期刊名称：EURASIAN SOIL SCIENCE （ 影响因子：1.4； 五年影响因子：1.5 ）

ISSN： 1064-2293

年卷期： 2023 年 56 卷 4 期

页码：

收录情况： SCI

摘要： Plastic shed vegetable (PSV) cultivation has become an important vegetable production system in China, which accounts for about 1/4 of the total vegetable production of China. Shandong is the largest facility vegetable growing area in China. Continued years of high-input, high-output planting methods have brought some problems to the surrounding environment. Salinization has not only affected the soil and groundwater environment, but also the growth of vegetables. A comprehensive understanding of soil salinization in plastic shed vegetable fields is important for the sustainable development of the vegetable farming industry. In this paper, random survey sampling was used to collect soil samples from representative PSV production areas in Shandong Province, and the soil salinization status, acidification status, salt ion composition, and the main causes of soil salinity were studied in the survey area. Our study found that the salinized soils (mild, moderate, and severe levels) in the surveyed areas accounted for 40% of the total samples, and the total soluble salt (TSS) increased with the increase of the planting years. After continuous planting for 10 years, the soil pH showed a downward trend, indicating that salinization and acidification occurred simultaneously. A significant positive correlation was observed between TSS and soil organic matter (SOM) (r = 0.4773**). Principal component analysis found that , , , , Ca2+, K+, Mg2+, and Na+ had higher positive loads on principal component 1, the factor loads were 0.557-0.927, and the contribution rate reached 34.928%. Correlation analysis also showed that TSS was positively correlated with the concentrations of these ions (P < 0.01). The soil salinization status should be closely monitored and regulated by regulatory authorities to improve environment and soil health through balanced fertilization, thereby improving the yield and quality of vegetables.

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