| 基于地统计学和GIS的福建省降雨侵蚀力空间格局 |
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| 引用本文： | 张坤,洪伟,吴承祯,丁新新. 基于地统计学和GIS的福建省降雨侵蚀力空间格局[J]. 山地学报, 2009, 27(5) |
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| 作者姓名： | 张坤 洪伟 吴承祯 丁新新 |
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| 作者单位： | 福建省高校森林生态系统过程与经营重点实验室,福建,福州,350002 |
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| 基金项目： | 福建省教育厅资助项目 |
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| 摘 要： | 运用地统计学,结合GIS技术研究了福建省降雨侵蚀力空间分布特征.采用变异函数定量描述空间分布结构特征和析取克里格法进行最优插值,结果表明:福建省降雨侵蚀力变异函数采用指数模型模拟较好,有显著的空间结构性特点,且具有中等空间相关性;分形维数表明降雨侵蚀力表现出一定的方向性特点,在NW-SE向相关性较好;从Kriging插值结果可知,析取克里格插值优于普通与简单克里格插值,降雨侵蚀力较大值分布于研究区域的西北和东北部地区.
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| 关 键 词： | 降雨侵蚀力 空间变异 分形维数 地统计学 |
Study on the Spatial Pattern of Rainfall Erosivity Based on Geostatistics and GIS of Fujian Province |
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| ZHANG Kun,HONG Wei,WU Chengzhen,DING Xinxin. Study on the Spatial Pattern of Rainfall Erosivity Based on Geostatistics and GIS of Fujian Province[J]. Journal of Mountain Research, 2009, 27(5) |
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| Authors: | ZHANG Kun HONG Wei WU Chengzhen DING Xinxin |
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| Affiliation: | Fujian Forest Ecological System Process and Management Key Laboratory;Fuzhou 350002;Fujian;China |
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| Abstract: | Geostatistical methods were used in combination of GIS techlonogy to analyze the spatial distribution characteristics of rainfall erosivity in Fujian province.The spatial distribution features were quantitatively described by variogram.Based on the variograms,Disjunctive Kriging interpolation was performed.The results indicated that rainfall erosivity in Fujian province was fitted to exponenyial model and had good spatial structures and was moderately spatially dependent.The fractal dimention indicated that... |
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| Keywords: | Kriging |
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