| 天然岛状地及其在生态建设中的意义 |
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| 引用本文： | 赖彦斌,赵金涛,王静爱.天然岛状地及其在生态建设中的意义[J].北京师范大学学报(自然科学版),2002,38(6):829-835. |
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| 作者姓名： | 赖彦斌 赵金涛 王静爱 |
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| 作者单位： | 北京师范大学资源与环境科学系,北京师范大学环境演变与自然灾害教育部重点实验室,100875,北京 |
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| 基金项目： | 国家重点基础研究发展计划(973计划);; |
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| 摘 要： | 以岛屿生物地理学和景观生态学为理论基础,提出了天然岛状地的界定.根据天然岛状地随时间演变或比例尺变换后的演变模式可将天然岛状地分为孤岛型、群岛型、环型、半环型、弧型和直线型6类,根据其演变面积的大小可将其分为纯天然、准天然、半天然、弱天然岛状地4类,从而反观人类活动对土地利用的方向和强度,并以中国北方草地与农牧交错带为案例,分析了天然林岛状地的空间分布格局,剖析了天然岛状地研究对于生态建设的意义.
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| 关 键 词： | 天然岛状地 人类活动 生态建设 空间分布 |
| 修稿时间： | 2002年4月19日 |
A STUDY ON NATURAL ISLAND LAND AND ITS SIGNIFICANCE IN ECOLOGICAL CONSTRUCTION |
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| Lai Yanbin,Zhao Jintao,Wang Jing''''ai.A STUDY ON NATURAL ISLAND LAND AND ITS SIGNIFICANCE IN ECOLOGICAL CONSTRUCTION[J].Journal of Beijing Normal University(Natural Science),2002,38(6):829-835. |
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| Authors: | Lai Yanbin Zhao Jintao Wang Jing'ai |
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| Abstract: | On the basis of Island Biogeographic Theory and Landscape Ecology, the definition of natural island land is given to analyze the correlative land use and cover change (LUCC) on landscape units. The island land, which is shaped when time past or the scale of map is modified, can be classified into 6 species: alone island, archipelago, annular island, semi-annular island, arc island and linear island. On the other hand, the island whose area altered can be classified into 4 species: pure natural island, similar-pure natural island, semi-natural island and little-natural island. The spatial distribution of the natural forest island in ecotone between agriculture and animal husbandry is showed. Through the above two classifications, the direction and intensity of human activity of land use can be reflected to analysis the significance in the ecological construction. |
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| Keywords: | natural island land human activity ecological construction spatial distribution |
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