Study on Soil Water Dynamics Change of Farmland and Forests in Dryland(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Study on Soil Water Dynamics Change of Farmland and Forests in Dryland

Author(s):: HU Ming; Key Laboratory for Eco-environment of Multi-River Wetlands in Shaanxi Province,College of Chemistry and Life Sciences，Weinan Teachers University，Weinan，Shaanxi 714000

Keywords:: Weinan plateau; soil water; soil water content; dynamic change; factor

Abstract:: Soil water content of soil samples in farmland and grassland of Weinan plateau were determined and analyzed using the drying method. The results showed that, overall, soil water content of soil samples over 2 m in farmland and grassland of Weinan plateau changed larger in October, 2~5 m soil samples changed less because of precipitation; in November and February, the soil water content at a high level and modest change because of winter climate. The difference was in November the soil sample of farmland 4~5 m changed larger, while the grassland 4.5~5 m soil samples changed larger; in February only the grassland 4.5~5 m soil samples changed larger; in March and April, because of spring drought, the soil water content at a low level and little change. The difference was in March the soil sample of farmland 0~0.6 m and 1.6~2.2 m changed larger, while the grassland 1.4~2.0 m, 2.0~3.2 m, 4.2~4.6 m soil samples changed larger; in April only the farmland 2.6~3.2 m soil samples changed larger.

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Last Update: 2014-08-22