西安与咸阳地区麦地土壤含水量对比研究  

Contrastive Study on Soil Moisture Content in the Soil of Wheat Field in Xian and Xianyang

作　　者：张香[1] 赵景波[1,2] 

机构地区：[1]陕西师范大学旅游与环境学院,陕西西安710062 [2]中国科学院地球环境研究所黄土与第四纪地质国家重点实验室,陕西西安710075

出　　处：《安徽农业科学》2009年第17期8091-8094,共4页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目(40672108);中国科学院黄土与第四纪地质国家重点实验室项目(SKLLQG0605)

摘　　要：对西安市东郊狄寨镇、长安区郭杜镇大学城附近、咸阳市庞南村和北上召麦地土壤含水量进行了测定，研究了西安与咸阳地区不同降水条件下0～600cm麦地土壤含水量的变化。结果显示，4个采样点麦地平均含水量分别为22．0％、21．9％、16．7％、22．5％。东郊狄寨镇、长安区郭杜镇、咸阳北上召土壤含水量变化特点很相似，210～400cm土层最高，410～600cm次之，0～200cm最低。咸阳市庞南村麦地土壤含水量变化特点为210～400cm土层最高，0～200cm次之，410～600cm最低。研究表明，在正常降水量条件下，关中地区农田并无土壤干层发育，即使在冬小麦的耗水高峰期，农田土壤含水量仍然能够满足农作物生长的需求。The soil moisture content in the soil of wheat field in Dizhai Town of Xi＇ an, Gnodu Town of Changan, Pangnan Village and Beishangzhso of Xianyang was determined. The changes of moisture content in 0 - 600 cm soil were studied. The results showed that the average moisture content in the soil of wheat field in four areas were 22.0%, 21.9%, 16.7% and 22.5% respectively. The moisture content in 210 - 400 cm soil was the highest, the next was in 210 - 400 cm soil and the minimum was in 0 - 200 cm soil in Dizhai of Xian. Its changes of soil moisture were similar to that in Beishangzhao of Xianyang and Guodu Town of Changan. While, in Pangnan Village of Xianyang, the maximum moisture content was in 210- 400cm soil and the minimum was in 410- 600 cm soil. The results indicated that in normal rainfall years, there was no dry soil layer in the farmland of Guanzhong area, even if in the high water consumption period of winter wheat, moisture content in farmland soil was still able to meet the demands of crop growth.

关 键 词：西安和咸阳地区 麦地 土壤含水量 土壤干层 

分 类 号：S152.1[农业科学—土壤学]