灌溉排水学报2011，Vol.30Issue(2)：68-71,4.
涌泉根灌多点源交汇入渗湿润体试验研究
Experimental Study on Soil Wetted Volume of Multiple Point Sources from Surge Root Irrigation Interference Infiltration
摘要
Abstract
Undisturbed soil surge root irrigation infiltration experiment was carried out at mountain microirrigation demonstration base for jujube at Mizhi, and the variation of eigenvalues of wetted soil is studied under the condition of multi-point source interference infiltration. Results show: the infiltration distance of soil wetted front were good power functional relation with infiltration time on the intersection surface side and the holes surface side under surge root irrigation, and the wetting front migration velocity at the intersection surface was faster than that at the hole, and that is, finally the profile shape of wetting soil under interference infiltration in the direction of hole arrangement would nearly become a ribbon. In the middle area around the hole bottom, the soil water content contour distribution was relatively complicated and the contour distribution was similar to the“saddle” on the topography. The double point sources irrigation got the best irrigation effect under surge root irrigation.关键词
涌泉根灌/多点源/交汇入渗/湿润比Key words
surge root irrigation/ multiple point sources/ interference infiltration/ wetted percentage分类
农业科技引用本文复制引用
黎朋红,汪有科,马理辉,赵颖娜,黎朋军..涌泉根灌多点源交汇入渗湿润体试验研究[J].灌溉排水学报,2011,30(2):68-71,4.基金项目
"十一五"国家科技支撑项目(2007BAD88B05) （2007BAD88B05）
