| 岭谷组合地形的植被空间变异性对比及成因 |
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| 引用本文： | 郝成元,张永领,吴绍洪.岭谷组合地形的植被空间变异性对比及成因[J].山地学报,2009,27(1). |
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| 作者姓名： | 郝成元 张永领 吴绍洪 |
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| 作者单位： | 1. 河南理工大学测绘与国土信息工程学院,河南焦作,454000
2. 中国科学院地理科学与资源研究所,北京,100101 |
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| 基金项目： | 河南理工大学士基金，国家重点基础研究发展规划(973计划) |
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| 摘 要： | 滇西南山地纵向排列着老别山、邦马山、无量山、哀牢山,其对气候因子及植被生态的影响一直是我国山地生态学的主要研究内容之一.采用moran 系数(MC)度量了植被主要气假因子的空间自相关程度,通过构建半变异数研究了EVI各向异性及其气候因子的空间变异特征.结果显示:4山地气候因子的空间分异特征与地形走向吻合,表现出南-北方向的自相关程度较大,东-西方向自相关程度最小,表明山地延伸方向上"通道"作用明显而山地排列方向上"阻隔"作用显著;哀牢山和老别山的"阻隔"作用较大、影观异质性复杂,邦马山和无量山的"阻隔"作用较小、景观变化方向性不鲜明,各纵向山地的"通道-阻隔"作用与各山地走向、规模大小密切
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| 关 键 词： | 岭谷组合地形 增强型植被指数 空间变异 各向异性 通道-阻隔作用 |
Comparisons on EVI Spatial Variation and Causes Exploration among Different Mountains in the Southwest Yunnan Province of China |
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| HAO Chengyuan,ZHANG Yongling,WU Shaohong.Comparisons on EVI Spatial Variation and Causes Exploration among Different Mountains in the Southwest Yunnan Province of China[J].Journal of Mountain Research,2009,27(1). |
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| Authors: | HAO Chengyuan ZHANG Yongling WU Shaohong |
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| Institution: | 1.College of Surveying & Land Information Engineering;Henan Polytechnic University;Jiaozuo 454000;China;2.Institute of Geographic Sciences and Natural Resource Research;CAS;Beijing 100101;China |
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| Abstract: | In the southwest of Yunnan Province of China,there are Mt.Laobie,Mt.Bangma,Mt.Wuliang and Mt.Ailao,which influenced its climate and vegetation.It may be one of the main issues of mountain ecology in China.In this paper,moran coefficient ( MC) was adopted to calculate the spatial autocorrelation degree,and semivariance function was used for spatial variability and spatial heterogeneity analysis.The results indicate that the spatial differentiation patterns of main climatic factors have been consistent with t... |
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| Keywords: | the combination of ranges and gorges EVI spatial variability anisotropism "corridor-barrier" functions |
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