论文标题
降低土壤盐度：灌溉和水管理在整个开发阶段的全球干旱地区的作用
To reduce soil salinity: the role of irrigation and water management in global arid regions across development phases
论文作者
论文摘要
通过优化的灌溉和水管理来减少农田的土壤盐水化，对于实现土地降解中和至关重要。各种灌溉和水管理措施的有效性和可持续性尚不确定。在这里，我们使用遥感来估计1984年至2018年的干旱裁剪地的土壤盐度。然后，我们使用贝叶斯网络分析比较盐度对水管理的空间 - 周期性反应，包括十个大型干旱河流域中的各种灌溉和排水方法：尼罗（Nile），尼罗（Nile），尼罗（Nile），tigris-euphrates，tigris-euphrates，tigris-euphrates，tigris-euphrates，tirim tarim tarim tarim tarim as amu as amu，sangoo，syo and yili，sygar，sygar，in liri and y。盆地的经理在更高级的发展阶段实施了滴水和地下水灌溉，这通过降低地下水水平有效地控制了盐分。对于使用常规洪水灌溉的剩余盆地，经济发展和政策对于建立改善灌溉系统，减少盐度以及增加实现LDN所需的农业收入的良好圈子至关重要。
Reducing soil salinization of croplands with optimized irrigation and water management is essential to achieve land degradation neutralization. The effectiveness and sustainability of various irrigation and water management measures to reduce basin-scale salinization remain uncertain. Here we use remote sensing to estimate soil salinity of arid croplands from 1984 to 2018. We then use Bayesian network analysis to compare the spatial-temporal response of salinity to water management, including various irrigation and drainage methods, in ten large arid river basins: Nile, Tigris-Euphrates, Indus, Tarim, Amu, Ili, Syr, Junggar, Colorado, and San Joaquin. Managers in basins at more advanced phases of development implemented drip and groundwater irrigation, which effectively controlled salinity by lowering groundwater levels. For the remaining basins where conventional flood irrigation is used, economic development and policies are crucial to establishing a virtuous circle of improving irrigation systems, reducing salinity, and increasing agricultural incomes necessary to achieve LDN.
