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在三种质地（砂壤、轻壤、中壤）、三种盐化程度（中度盐化、重度盐化、盐土）的土壤上进行了秸秆覆盖条件下的水分运动的模拟试验，结果表明秸秆覆盖可明显降低土壤水分蒸发，与不覆盖相比，覆盖１．５ｔ／ｈｍ２土壤水分蒸发减少４０％，覆盖６．７５ｔ／ｈｍ２土壤水分蒸发减少７０％，并且覆盖量在１．５ｔ／ｈｍ２～６．７５ｔ／ｈｍ２的范围内，土壤水分蒸发减少量随着覆盖量的增加逐渐增加。土壤质地、盐化程度不同秸秆覆盖的效果不同。
The simulated experiment of water movement under the condition of straw mulch was carried out on three kinds of soil (sandy soil, light soil, middle soil) and three kinds of soil with salinization (moderate salinization, heavy salinization, salt soil) Compared with no coverage, straw mulching could significantly reduce soil water evaporation. Compared with non-mulching, soil moisture evaporation of 1.5t / hm2 coverage decreased by 40%, coverage of 6.75t / hm2 soil water evaporation decreased by 70%, and mulching coverage was 1.5t / hm2 ~ 6.75t / hm2, the decrease of soil water evaporation gradually increases with the increase of coverage. Soil texture, salinity levels of different effects of straw mulching.