| 我国南方地区降雨侵蚀力指标R的建立研究——以江西鹰潭地区为例 |
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| 引用本文： | 张黎明,林金石,于东升,史学正.我国南方地区降雨侵蚀力指标R的建立研究——以江西鹰潭地区为例[J].水土保持研究,2011,18(5):1-4. |
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| 作者姓名： | 张黎明 林金石 于东升 史学正 |
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| 作者单位： | 1. 福建农林大学资源与环境学院,福州350002／土壤与农业可持续发展国家重点实验室,中国科学院南京土壤研究所,南京210008
2. 土壤与农业可持续发展国家重点实验室,中国科学院南京土壤研究所,南京210008 |
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| 基金项目： | 国家自然科学基金(41001126); 福建省自然科学基金(2010J05090); 教育部博士点基金(20103515120014) |
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| 摘 要： | 利用我国南方亚热带地区江西省鹰潭市农田生态系统国家实验站自建气象站1997-2003年的自然降雨观测资料,研究了不同雨强对计算我国南方地区降雨侵蚀力的影响。结果表明：试验区不同雨强计算的降雨侵蚀力差异达到显著水平,且各年降雨侵蚀力R值总趋势为：I10〉I15〉I30〉I60,说明为了提高鹰潭地区水土流失预报精度,找出一个适合该地区降雨特征的雨强计算降雨侵蚀力是十分必要的。进一步通过对鹰潭地区3种典型类型土壤流失量与降雨侵蚀力密切相关的降雨动能E和雨强I相关分析得出15min最大雨强是该地区计算降雨侵蚀力的最佳雨强。
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| 关 键 词： | 降雨侵蚀力 R值 鹰潭地区 雨强 |
Establishment of Index R in Rainfall Erosivity in South China——Taking the Area of Yingtan as an Example |
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| ZHANG Li-ming,LIN Jin-shi,YU Dong-sheng,SHI Xue-zheng.Establishment of Index R in Rainfall Erosivity in South China——Taking the Area of Yingtan as an Example[J].Research of Soil and Water Conservation,2011,18(5):1-4. |
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| Authors: | ZHANG Li-ming LIN Jin-shi YU Dong-sheng SHI Xue-zheng |
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| Institution: | ZHANG Li-ming1,2,LIN Jin-shi1,YU Dong-sheng2,SHI Xue-zheng2(1.College of Resources and Environment,Fujian Agriculture and Forestry University,Fuzhou 350002,China,2.State Key Laboratory of Soil and Sustainable Agriculture,Nanjing Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008,China) |
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| Abstract: | Through the obtained materials of 1997 to 2003 in the Ecological Experiment Station of Red Soil(EESRS),Yingtan,Jiangxi Province,the rainfall erosivity(R) and its characteristic under different rainfall intensity were significantly remarkable and the tendency of mean rainfall erosivity(R) was: I10>I15>I30>I60.They all demonstrated that it was critical to establish a suitable rainfall intensity calculating R to improve the precision of prediction model of soil erosion in the area of Yingtan.Through analysis o... |
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| Keywords: | rainfall erosivity index R area of Yingtan rainfall intensity |
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