黄土高原丘陵沟壑区果园土壤水分动态  

Study on Dynamic Variation of Soil Moisture in Slope Orchard of Loss Plateau

作　　者：王健[1] 吴发启[1] 

机构地区：[1]西北农林科技大学资源环境学院,陕西杨凌712100

出　　处：《节水灌溉》2007年第3期32-34,37,共4页Water Saving Irrigation

基　　金：中科院知识创新项目"黄土高原水土保持与生态环境建设试验示范研究"(kzcx1-06-02-003);西北农林科技大学青年专项"经济林果抗逆优质丰产技术研究"

摘　　要：通过对飞马河流域坡面果园土壤水分连续4年的监测，采用时间序列小趋势分析法，分析了坡面果园土壤水分动态。结果表明：坡面果园0-200cm土壤水分储量为314．711mm，低于坡面土壤水分储量28．8％；果园土壤水分储量年变化表现为1～5月耗水，9～12月土壤水储量得到恢复；各层土壤水分储量变化幅度表现为表层大于下层，下层土壤水分的消耗具有明显滞后性，同时下层土壤水分的补充与消耗受上层土壤水分储量影响。Through monitoring the soil moisture in slope orchard in Feimahe basin for four years, the dynamic variation of soil moisture in slope orchard was analyzed by using the method of timeliest trend in this paper. The result indicated that the soil-water quantity in the depth of 0-200 cm was 314.71 mm, which was lower than that of slope farmland. The variation rule of soil-water quantity in slope orchard is consumption from January to May, and restore from September to December. The variation degree of soil -water quantity was that the upper was bigger than the lower, and the supplement and consumption of lower was influenced by upper soil moisture.

关 键 词：土壤水分 果园 时间序列 

分 类 号：S152.7[农业科学—土壤学]