干旱地区农业研究2013，Vol.31Issue(2)：134-140,7.
微咸水灌溉对河北低平原土壤盐分动态和小麦、玉米产量的影响
Effects of saline water irrigation on soil salt dynamics and yields of wheat and maize in low plain of Hebei province
摘要
Abstract
A 3-year field experiment was conducted in Hengshui and Quzhou experimental stations in the low plain of Hebei province to investigate the effects of border irrigation with 2 g · L-1 saline-fresh blending water on soil salt dynamics and yields of wheat and maize. The results showed that the irrigation with 2 g·L-1 saline water caused a significant salt accumulation at the principal root layer (0 ~ 40 cm) and 0 ~ 120 cm soil layer during the 3-year irrigation period . Compared with fresh water irrigation, the 3-year average soil ECe value under saline water irrigation in Hengshui and Quzhou was increased by 0.092 dS·m-1 and 0.091 dS·m-1 respectively at 0 ~ 40 cm root layer, and by 0.051 dS·m-1 and 0.147 dS·m-1 respectively at 0 ~ 120 cm soil layer after the harvesting of winter wheat; it was increased by 0.059 dS· m-1 and 0.127 dS· m-1 respectively at 0 ~ 40 cm root layer, and by 0.082 dS· m-1 and 0.131 dS· m-1 respectively at 0 ~ 120 cm soil layer after the harvesting of summer maize. On the whole, there was no significant difference in the yields of winter wheat and summer maize between the freshwater irrigation and the 2 g·L-1 saline water irrigation. So from the perspective of long-term safe use of the saline shallow groundwater to relieve the crisis of freshwater resources, the constant monitoring on soil salt dynamics and regular salt-leaching by freshwater irrigation is very essential.关键词
微咸水灌溉/土壤盐分/小麦/玉米/产量Key words
saline water irrigation/ soil salt/ wheat/ maize/ yield分类
农业科技引用本文复制引用
焦艳平,高巍,潘增辉,李科江,沈广诚..微咸水灌溉对河北低平原土壤盐分动态和小麦、玉米产量的影响[J].干旱地区农业研究,2013,31(2):134-140,7.基金项目
水利部公益行业科研专项"海河流域非常规水安全利用模式及关键技术"(201001019) （201001019）
河北省省级水利财政预算项目"咸淡水混浇" （）
