滴灌技术在兰州南北两山环境绿化工程中的应用研究

Application of Drip Irrigation Technique for the Project of Environmental Afforestation in Southern and Northern Mountains of Lanzhou City

试验选择兰州市南北两山典型区域安装滴灌设备,对灌溉树木的凋萎系数、根系分布、灌水后的土壤含水量开展原位观测。结果表明:滴灌能较好的满足树木蒸发蒸腾量。在节约水资源、节省管护费用等方面滴灌具有明显的效益。滴灌对提高兰州市南北两山绿化树木成活率、改善兰州市周边地区的生态环境有着十分重要的意义。

Drip irrigation equipments were installed in typical areas of southern and northern mountains of Lanzhou city.By in-situ observation,we studied the wilting coefficients,roots distribution and the soil water content after irrigation of the irrigated trees.The result showed： irrigation could preferably meet the amount of evapotranspiration of trees.It had obvious benefit in the aspects of saving water resources and the cost management and protection.Irrigation had very important significance for the increasing of survival rate of the afforestation trees and the improvement of the ecological environment of peripheral areas of Lanzhou City.