陕西省土壤温度和水分状况估算
发布时间:2019-02-13 14:17
【摘要】:土壤温度和水分状况是中国土壤系统分类的两个重要诊断特性。土壤的水热状况受近地表温度和降水的直接影响,可以通过气候因素来估算土壤水分和温度状况。以陕西省85个气象台站连续30年的地面气象数据为基础,采用地统计与纽荷模型(JNSM)相结合的方法研究了陕西省土壤温度和水分状况及其空间分布。结果表明,土壤温度状况表现为:秦岭山区及其以北为温性,汉江河谷地区及其以南为热性;土壤水分状况表现为:长城以北为干旱,陕北黄土高原地区和关中盆地为半干润,秦岭以南为湿润,常湿润仅在最南端镇巴县和镇坪县的小部分南部地区存在。
[Abstract]:Soil temperature and soil moisture are two important diagnostic characteristics of soil classification in China. The water and heat status of soil is directly affected by near-surface temperature and precipitation, and the soil moisture and temperature can be estimated by climatic factors. Based on the surface meteorological data of 85 meteorological stations in Shaanxi Province for 30 consecutive years, the soil temperature and moisture status and their spatial distribution in Shaanxi Province were studied by means of geostatistics and (JNSM) model. The results show that the soil temperature is: Qinling mountain area and its north is warm, Hanjiang River valley area and its south is thermal; The soil moisture conditions are as follows: drought in the north of the Great Wall, semi-dry and moist in the Loess Plateau and Guanzhong Basin in northern Shaanxi, and humid in the south of Qinling Mountains, usually only in the southern part of Zhenba County and Zhenping County in the southernmost part.
【作者单位】: 西北农林科技大学资源环境学院;
【基金】:国家科技基础性工作专项项目(2014FY110200A08)资助
【分类号】:S152
[Abstract]:Soil temperature and soil moisture are two important diagnostic characteristics of soil classification in China. The water and heat status of soil is directly affected by near-surface temperature and precipitation, and the soil moisture and temperature can be estimated by climatic factors. Based on the surface meteorological data of 85 meteorological stations in Shaanxi Province for 30 consecutive years, the soil temperature and moisture status and their spatial distribution in Shaanxi Province were studied by means of geostatistics and (JNSM) model. The results show that the soil temperature is: Qinling mountain area and its north is warm, Hanjiang River valley area and its south is thermal; The soil moisture conditions are as follows: drought in the north of the Great Wall, semi-dry and moist in the Loess Plateau and Guanzhong Basin in northern Shaanxi, and humid in the south of Qinling Mountains, usually only in the southern part of Zhenba County and Zhenping County in the southernmost part.
【作者单位】: 西北农林科技大学资源环境学院;
【基金】:国家科技基础性工作专项项目(2014FY110200A08)资助
【分类号】:S152
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