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由于目前对干旱牧区土壤含水量随深度和时间的变化缺乏长期研究,而这一课题对牧区生产的持续发展有重大意义,为此,作者利用时间序列分析理论对大尺度范围内的土壤水分动态特征进行了探讨。作者沿墨西哥州立大学牧场内一条长约2.7公里的土壤横断面,每隔30米定位测定土壤含水量和降雨量。土壤含水量每两周测一次,分六层进行,深度分别为30、60、90、110、130和145cm。降雨量序列为土壤含水量测定前两周内的降雨总
Due to the lack of long-term research on the variation of soil moisture content with depth and time in arid and pastoral areas, this topic is of great significance to the sustainable development of pastoral areas. Therefore, the author uses time series analysis theory to analyze the effects of soil moisture on a large scale Features were discussed. The authors measured the soil moisture content and rainfall at a distance of about 2.7 km along the cross-section of the soil of Mexico State University, about 2.7 km long. Soil moisture content measured once every two weeks, divided into six layers, the depth of 30,60,90,110,130 and 145cm. The rainfall series is the total rainfall in the first two weeks of soil moisture measurement