水土保持研究2017，Vol.24Issue(5)：371-374,4.
根灌和滴灌对三种典型荒漠植物生长的影响
Effects of Root Irrigation and Drip Irrigation on the Growth of Three Typical Desert Plants
摘要
Abstract
Root irrigation is a kind of new technology,which is able to deliver water directly to the roots of plants,and has the function of drought resistance and water retention.Using the root irrigation and drip irrigation experiment of Tamarix ramosissima,Elaeagnus angusti folia,Caragana korshinskii planted on abandoned lands was carried out.By measuring the change of soil moisture content and plant growth index under different irrigation methods,the supplies and maintaining action of two irrigation ways on soil moisture and positive impact on plant growth were examined.The results show that:(1) the range and depth of soil water supply are not consistent with the root irrigation and drip irrigation,the water mainly concentrated on the soil surface under the drip irrigation,while the water mainly concentrated below the 20 cm layer under the root irrigation,which is closely related with the irrigation time and irrigation amount;(2) root irrigation can keep the soil moisture better,while the surface soil water under drip irrigation can lost easily;(3) the growth of three species under root irrigation are greater than that under the drip irrigation,and root irrigation can better promote plant growth.Root irrigation is the ideal irrigation method on the three typical desert plants.关键词
沙生植物/滴灌/根灌/生长量/土壤水分Key words
desert plant/drip irrigation/root irrigation/growth/soil water分类
农业科技引用本文复制引用
李得禄,严子柱,姜生秀,张芝萍,王多泽,李昌龙,唐卫东..根灌和滴灌对三种典型荒漠植物生长的影响[J].水土保持研究,2017,24(5):371-374,4.基金项目
甘肃省科技支甘项目“民勤沙区根灌节水技术研究与示范”(1304JKCA170) （1304JKCA170）
甘肃省创新群体项目(145RJIA335) （145RJIA335）
甘肃省自然基金项目(1308RJYA081) （1308RJYA081）
甘肃省青年基金项目(145RJYA270) （145RJYA270）
