Saline–Alkali Soil Reclamation Contributes to Soil Health Improvement in China

作者：Wei Zhu, Shiguo Gu, Rui Jiang, Xin Zhang, Ryusuke Hatano · 发表于：Agriculture · 年份：2024 · DOI：10.3390/agriculture14081210 · 被引用次数：75 · 研究领域：Soil Carbon and Nitrogen Dynamics、Silicon Effects in Agriculture、Soil and Unsaturated Flow

Soil salinization is a significant threat to soil health, especially to the agricultural ecosystem; it reduces vegetation biomass, destroys ecosystem diversity, and limits land use efficiency. This area of investigation has garnered extensive attention in China, especially in the arid and semi-arid areas, totaling 7.66 × 106 ha. A variety of theoretical research and technology developments have contributed to soil water and salt regulation and the screening of salt-tolerant varieties to improve nutrient utilization efficiency and microbial control and reduce ecological problems due to saline-based obstacles. These techniques can be classified into physical treatments, chemical treatments, biological treatments, and combined treatments; these different measures are all aimed at primarily solving saline–alkali stress. In general, the improvement and utilization of saline–alkali soil contribute to soil health improvement, concentrating on high-quality development, food security, ecological security, cultivated land protection, and agricultural upgrading. However, the risks of various technologies in the practical production process should be highlighted; green and healthy measures are still expected to be applied to saline–alkali land.