石羊河流域干旱沙漠区滴灌条件下苹果树耗水规律研究  

Water consumption variation and growth of apple trees under drip irrigation in Shiyanghe river basin of Gansu province

作　　者：粟晓玲[1] 石培泽 杨秀英 何立绩 康绍忠[1] 

机构地区：[1]西北农林科技大学旱区农业水土工程教育部重点实验室,陕西杨凌712100 [2]甘肃武威市水利局,甘肃武威733000 [3]甘肃武威市水利科学研究所,甘肃武威733000 [4]甘肃民勤县水利局,甘肃民勤733300

出　　处：《水资源与水工程学报》2005年第1期19-23,共5页Journal of Water Resources and Water Engineering

基　　金：国家自然科学基金重点项目(50339030);国家自然科学基金委员会"中国西部环境与生态科学重大研究计划"项目(编号90202001);教育部科学技术研究重点项目(02075)

摘　　要：为研究沙漠地区苹果树滴灌的需水规律及土壤水分状况对苹果树生长的影响,在石羊河流域下游民勤茨井东苹果园进行了3年田间试验,结果表明:沙漠地区苹果树滴灌的耗水规律呈单峰型,需水临界期在6月中旬至7月,耗水量最高,进入8月份逐渐下降;不同处理、不同灌水量下,作物系数Kc变化不大,滴灌条件下苹果树的作物系数大大低于地面灌溉条件下的作物系数;并提出了在该地区合理的苹果树灌溉制度,包括灌溉定额、灌水次数、灌水间隔及灌水定额。Three years' experiments have been conducted in Cijingdong apple orchard near Minqin of Shiyanghe river basin, in order to study water consumption variation and the effect of soil water state on apple tree growth near desert region. The results indicate that water consumption variation curve of apple trees has one perk under drip irrigation. The critical period for water requirement is during mid June to July, and the water consumption is the highest in all of the growing season. Crop coefficients of apple trees under drip irrigation condition for all treatments, are much smaller than that under surface irrigation condition. The reasonable irrigation scheduling such as irrigation quota, the time of irrigation, the interval of two irrigations and the irrigation quota on each time are put foreword.

关 键 词：滴灌 耗水量 作物系数 灌溉制度 苹果树 

分 类 号：S274.1[农业科学—农业水土工程]