| 东北地区土壤湿度的诊断分析 |
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| 引用本文： | 李琛,沈新勇,李伟平.东北地区土壤湿度的诊断分析[J].安徽农业科学,2010,38(9):4696-4700. |
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| 作者姓名： | 李琛 沈新勇 李伟平 |
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| 作者单位： | 1. 南京信息工程大学,气象灾害省部共建教育部重点实验室,江苏南京,210044
2. 中国气象局,国家气候中心气候系统模式室,北京,100081 |
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| 基金项目： | 公益性行业(气象)科研专项(GYHY200706005);;国家自然科学基金项目(40775033);;江苏省青蓝工程(2009)共同资助 |
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| 摘 要： | 分析了中国东北地区22年间（1981～2002年）平均土壤湿度（10～100cm层）的垂直分布特征及时空变化。结果表明,1981～2002年,东北地区表层（10～60cm）土壤湿度呈现下降趋势,而深层（60cm）以下呈现上升趋势,东北地区各年土壤湿度的垂直结构各有不同,降水是造成这一现象的可能因素之一。东北地区各个站点土壤湿度的垂直结构和变化特征也有很大区别,除了降水,积雪、地温等因素也会影响土壤湿度的变化。
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| 关 键 词： | 土壤湿度 EOF分析 东北地区 |
Diagnostic Analysis of Soil Moisture in Northeast China |
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| LI Chen et al.Diagnostic Analysis of Soil Moisture in Northeast China[J].Journal of Anhui Agricultural Sciences,2010,38(9):4696-4700. |
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| Authors: | LI Chen |
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| Institution: | Key Laboratory of Meteorological Disaster of Ministry of Education;Nanjing University of Information Science and Technology;Nanjing;Jiangsu 210044 |
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| Abstract: | The horizontal distribution and vertical distribution characteristics of monthly average soil moisture (10-100 cm) of northeastern region of China in 22 years(1981-2002) were analyzed. The spatial and temporal variations also were analyzed. The results showed that from 1981 to 2002,the northeast region surface (10-60 cm) of soil moisture show a downward trend,while the deep (60 cm) following an upward trend. The vertical structure of soil moisture of different years was different. Rainfall was one possible ... |
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| Keywords: | Soil moisture EOF Northeast China |
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