宜林沙荒地开发中节水灌溉系统的试验调查与分析

Investigation and Analysis on Water-Saving Irrigation Methods in Sandy Area

以沙荒地葡萄栽培中配置的滴灌、喷灌、低压管灌和“U”型渠灌 4种灌溉系统为供试对象 ,通过对各节水系统的节水率等 5项主要性能指标开展试验调查 ,依据结果进行量化综合评价 ,筛选出滴灌是适宜干旱荒漠地区果树栽培的节水灌溉系统。分析了节水灌溉面临的问题 ,提出了推广节水技术。

On the basis of experiments of different irrigation methods (drip irrigation, sprinkling irrigation, low pressure pipe irrigation and 'U' shape canal irrigation) for grape cultivation in sandy area, this paper analyzed 5 of the main property indicators for water saving system, such as water saving rate etc, and evaluated them quantitatively. The result shows that drip irrigation is the suitable irrigation system for cash tree planting in arid area. The problems confronted for water saving irrigation in the development of sandy area were put forward, and measures adopted in extention of water saving technologies and construction of water saving engineering were proposed. \;