论文部分内容阅读
种植作物条件下，潜水蒸发的绝大部分是作物根系吸水形成。在同样的土壤上，种植作物的土壤潜水蒸发量是不种植的2.67－6．84倍，从而可以降低潜水埋深。另一方面种植作物促进土壤表层淋洗、脱盐。不种植作物的土壤，5年后土壤盐分由0．440％增加到0．770％，种植作物的土壤，经过5年的耕作土壤盐分由0．432％降低到0.130％。
Under crop conditions, most of the submersible evaporation is formed by the water absorption of the crop roots. In the same soil, the amount of soil submersion evaporation from planting crops is 2.67-6.84 times that of non-planting, which can reduce the diving depth. On the other hand planting crops to promote soil surface rinsing, desalination. After 5 years, the soil salinity increased from 0.440% to 0.770%. After 5 years cultivation, the soil salinity decreased from 0.432% to 0.130%.