入沟流量对蟠桃沟灌和蓄水坑灌灌水质量的影响

Influence of the Ditch Inflow on Quality of Ditch Irrigation and Water Storage Pit Irrigation for Flat Peach

在三工河流域典型灌溉条件下,进行不同入沟流量的田间灌水技术试验,以灌水均匀度(Ed)和灌水效率(Ea)为指标对蟠桃沟灌和蓄水坑灌的灌水质量进行评价,结果表明:沟灌条件下入沟流量对Ed、Ea的影响较大,总体而言,Ed、Ea随入沟流量的增加而增高,在相近条件下宜采用较大的入沟流量;蓄水坑灌条件下两种入沟流量的Ed和Ea差异较小,表明入沟流量不是影响蓄水坑灌灌水质量的主要因素,在土壤、地形等灌溉条件较差地区,蓄水坑灌法是适宜于果树的地面灌溉技术方式。

The irrigation experiment of different ditch inflow in representative condition was conducted in Sangong River valley, and we evaluated irrigation quality based on irrigation equality （ Ed ） and irrigation efficiency （Eα）. Results show that the Influence of ditch inflow on Ed and Eα is relatively great,in sum, Ed and Eα increased with the increase inflow of the ditch, so the author advises to adopt higher ditch inflow in similar condition. The influence of the ditch inflow on Ed and Eα is indistinct for water storage pit irrigation, and shows the ditch inflow isn＇t primary effect factor for irrigation quality. In the poor areas of soil and terrain conditions, water storage pit irrigation method is suitable for the ground irrigation techniques of fruit trees.