北方干旱地区日光温室大棚节水技术及效益分析

根据河北省邢台县岳垴村利用日光温室大棚种植蔬菜的实测数据,分析日光温室大棚节水效应,包括温室环境的节水作用、无土栽培节水作用和微灌技术的节水作用,结果表明,建设日光温室大棚,可以创造植物生长所需的温度、湿度、水分、养分等条件,使温室环境与外界隔绝,减少水分的蒸腾蒸发;在温室中利用栽培槽,采用无土栽培技术,一方面可减少灌溉面积,另一方面可阻止灌溉水下渗;而采用微灌技术控制灌溉水量,可根据蔬菜的生长需要供水,这3者都能达到节水的目的。在邢台县干旱缺水的丘陵山区建设日光温室大棚种植蔬菜,并与先进的节水技术、集雨技术相结合,具有较好的经济效益和社会效益。

Water saving technology and benefit analysis of sunlight greenhouses in northern arid areas of China

Based on the observed data of sunlight greenhouses for vegetables in Yuenao village of Xingtai County of Hebei Province, the water saving effects of the sunlight greenhouses were analyzed, including the water saving of greenhouse environment, water saving of soilless cultivation and water saving of micro irrigation technology. The results show that the sunlight greenhouses can create conditions for the growth of vegetables such as temperature, humidity, moisture and nutrient and separate the greenhouse envi...