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重庆岩溶区景观格局特征分析
The Characteristics of Landscape Patterns in Karst Area of Chongqing, China

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邵景安 1   李阳兵 2   魏朝富 3   谢德体 3  
文摘 借用景观空间格局指数分析重庆岩溶区景观格局框架，辨识影响景观格局的驱动因素．结果表明：重庆岩溶区景观分布不均匀，少数几类控制着整体景观．嵌块体几何形状较复杂，被分割程度较低，破碎化现象不明显，空间异质化程度低．各亚区景观多样性，均处于最大值2.81的中间段，有一种或少数几种景观类型起支配地位．人工干扰程度和丰富度依Ⅰ、Ⅱ和Ⅲ区地势降低的态势而增加，异质化程度、不均匀性和优势度则呈相反趋势．分维数差异不明显，形状指数变幅较大，不同区景观嵌块体几何形状较复杂且差异悬殊．森林景观嵌块体密度和分离度按Ⅰ、Ⅱ和Ⅲ区的顺序依次增加，耕地、园地和居民工矿用地则分别依次减少．边界密度除了Ⅲ区水域为63.03外，其余都在1.82～9.14之间．景观整体特征Ⅰ和Ⅱ区相似，与Ⅲ区存在显著差异．内地质作用在大的环境背景下控制着岩溶区景观格局特征的基本框架，外营动力在较短时空尺度上决定岩溶区景观格局特征的纵深态势．研究可为区域岩溶景观格局调控、景观规划和生态经济的持续发展等宏观决策提供科学依据和理论支撑．为岩溶区区域生态安全评价积累数据基础．
其他语种文摘 There is an even poorer understanding of the characteristics of landscape in southwestern karst area, China, particularly in Chongqing. The objective of this paper was to measure the framework of landscape patterns in karst area of Chongqing, and to determine the factors to drive the changes in landscape patterns. The results showed that landscape types presented unevenness tendencies, and several dominated preferably. Landscape mosaic patches had complex geological shape, lower isolation, unobvious fragment, and fragmentation. And further their spatial heterogeneities were much lower. The value of landscape diversity all distributed at average position of maximum landscape diversity 2.81 in each karst subarea of Chongqing. Similarly, one or several landscape types controlled landscape patterns of each subarea. Disturbance index and relative richness were the increasing tendencies associating with the decrease of landform along the rank of Ⅰ, Ⅱ and Ⅲ, while the reverse results occurred in heterogeneity, unevenness and dominance. There was significantly difference between fractal dimensions, and higher fluctuation between shape indexes in each subarea. Thus, the geological shape among different landscape mosaic patches was very complex, and the differences between them were very pronounced. The density and isolation of landscape mosaic patches increased along the rank of Ⅰ, Ⅱ and Ⅲ, while the contrary results were detected in cropland, orchard land and residential and mining land. Except for water body with 63.03 edge density in Ⅲ, the rest all ranged from 1.82 to 9.14. Similar landscape characteristics were observed between Ⅰ and Ⅱ, but the obvious differences were witnessed, when they compared with that of Ⅲ. In karst area, internal geological function, under the big environmental background, controls the basic trends and processes of landscape patterns, while external dynamics, at short-term spatial-temporal scale, has become a major force in shaping the environment. This study will be useful to supply fine ground and knowledge for establishing appropriate landscape practices and evaluating ecological security in karst area.
来源 地理科学进展 ,2006,25(5):31-40 【核心库】
关键词 景观格局 ; 环境分异 ; 驱动因素 ; 岩溶地区 ; 重庆
地址

1. 中国科学院地理科学与资源研究所  

2. 贵州师范大学地理与生物科学学院, 贵阳, 550001  

3. 西南大学资源环境学院, 重庆, 400716

语种 中文
文献类型 研究性论文
ISSN 1007-6301
学科 自然地理学;环境保护管理
基金 国家教育部科学技术研究重点项目
文献收藏号 CSCD:2536741

参考文献 共 13 共1页

1.  关文彬. 景观生态恢复与重建是区域生态安全格局构建的关键途径. 生态学报,2003,23(1):64-73 被引 67 次    
2.  Dorrough J. Eucalypt establishment in agricultural landscapes and implications for landscape-scale restoration. Biological Conservation,2005,123(1):55-66 被引 2 次    
3.  Aronson J. Ecological restoration:A new frontier for nature conservation and economics. Journal for Nature Conservation,2006:in press 被引 1 次    
4.  邬建国. 景观生态学-格局、过程、尺度与等级,2000 被引 475 次    
5.  Zarmati S. Landscape practice and methodology in the French planning process. Landscape and Planning,1980,7(3):203-221 被引 1 次    
6.  陈利顶. 基于模式识别的景观格局分析与尺度转换研究框架. 生态学报,2006,26(3):663-670 被引 39 次    
7.  李阳兵. 岩溶生态系统土壤及表生植被某些特性变异与石漠化的相关性. 土壤学报,2004,41(2):196-202 被引 55 次    
8.  李阳兵. 中国典型石漠化地区土地利用与石漠化的关系. 地理学报,2006,61(6):624-632 被引 53 次    
9.  李阳兵. 西南岩溶山地石漠化及生态恢复研究展望. 生态学杂志,2004,23(6):84-88 被引 23 次    
10.  李阳兵. 喀斯特石漠化与土地利用相关性研究. 资源科学,2006,28(2):67-73 被引 21 次    
11.  王连庆. 渝东南岩溶石山地区石漠化遥感调查及发展趋势分析. 地质力学学报,2003,9(1):78-84 被引 16 次    
12.  Turner M G. Changes in landscape patterns in Georgia US A. Landscape Ecology,1988,1(4):241-251 被引 60 次    
13.  Rao K S. Land use dynamics and landscape change pattern in a typical micro watershed in the mid elevation zone of central Himalaya India. Agriculture,2001,86(2):113-124 被引 2 次    
引证文献 5 篇

1 邵景安 西南岩溶山地乡村景观格局与石漠化调控展望 地理科学进展,2008,27(1):25-31
被引 6 次

2 彭月 重庆市岩溶区县土地利用景观破碎化及土壤侵蚀影响评价 中国岩溶,2008,27(3):246-254
被引 6 次

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