塔克拉玛干沙漠腹地植物固沙灌溉制度初步研究

通过对塔克拉玛干沙漠腹地三种灌溉方式土壤水分和植物灌溉后水分周期动态的连续测定 ,对该地区植物固沙的灌溉制度进行了初步的研究。结果表明 ,在塔克拉玛干沙漠腹地造林 ,滴灌、沟灌和畦灌地每年灌溉水量分别为 3 4 6 - 41 6 m3 /亩、894- 1 0 73 m3 /亩和 1 5 5 8-1 870 m3 /亩 ,每次灌溉后的间隔期 ,7— 8月份 5— 7天 ,其它月份 7— 1 0天灌溉一次较为合理 ,这样年植物整个生育期灌溉 2 5— 3 0水时 ,植物的生长不会受到水分的严重协迫

Preliminary Studies on Irrigation System for Sand-Fixing Plants in Takelamagan Desert

Through succession tests of soil moisture and reaction of plant to water in three irrigation methods, The irrigation system in plant sandfixing area as well as evaporation of soil moisture in Takelamagan desert were studied. The results showed that the amount of irrigation water for drop irrigation, ditch irrigation and plot irrigation were respectively 346-416m 3/mu,894-1073m 3/mu, and 1558-1870m 3/mu,It was appropriate that interval period of irrigation were 5-7 days in 7-8 months and 7-10 days in other months. In this way, if irrigation were taken 25-30 times each year, plant growth would not get coercible to water in whole growing season.