活动式坡地集雨及滴灌系统研究

雨水利用是干旱半干旱地区农业发展的生长点，该文依据干旱半干旱地区自然降水特征、农耕地分布特点、农业种植制度、作物需水与土壤水分动态变化规律，提出了“上坡春季种粮，秋季覆膜集雨，地边打窖贮水，补灌下部作物”的坡地活动式集雨及灌溉系统，并对其集雨效率、农田水分效应和系统产出效益进行了试验研究。研究结果表明，该系统具有集水效率高、保水效果好和增产效益明显的优点，是一种适合于干旱半干旱地区的集雨灌溉农业模式。

Mobile rainwater collection on slope and drip irrigation system

Rainwater utilization is a growth point of agricultural development in arid and semi-arid areas. Based on the characteristic of natural precipitation, distributing trait of farmland, agricultural planting system and law of crop requiring water and dynamic variety of soil moisture in arid and semi-arid areas, this paper put forward mobile rainwater collection on slope and irrigation system, in which crop is growing on slope-land in spring, the film is covered for collecting rainwater in autumn, the vaults are built in side of land for storing water and crop is irrigated lower land. At the same time, study was carried out about rainwater collection efficiency, moisture effect of farmland and production of system. The result indicates that this system has the merit of high rainwater collection efficiency, conserving soil moisture well and obvious increase production effect. It is a good rainwater-using mode that is fit for arid and semi-arid area.