| 流域景观异质性及森林动态模拟研究进展 |
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| 引用本文： | 方向京,张志,孙大庆,李笑吟.流域景观异质性及森林动态模拟研究进展[J].世界林业研究,2006,19(1):20-26. |
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| 作者姓名： | 方向京 张志 孙大庆 李笑吟 |
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| 作者单位： | 1.北京林业大学水保学院, 北京 100083 |
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| 基金项目： | 云南省昆明市森林生态网络体系建设研究项目 |
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| 摘 要： | 概述了流域景观异质性的相关概念、理论及研究, 通过对国内外大量文献资料的整理, 对景观异质性的成因及流域景观的组分进行了综述, 提出流域景观异质性的研究重点在于嵌套流域的尺度转换。当前遥感和地理信息系统广泛应用于景观生态研究, 遥感的重点在于解译分类, 而现代地理信息系统所具备的空间分析功能提供了景观异质性和动态模拟研究的新途径。景观动态研究的主要途径是模型模拟, 文中对以森林植被为主体对象的异质种群模型、林窗模型和空间直观景观模型进行了评述, 指出景观动态模拟重点在于参数化过程中类型变量的判别根据, 今后森林动态模型发展需要对空间属性和过程变化进行整合。
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| 关 键 词： | 流域 景观异质性 森林 景观模型 模拟 |
| 文章编号： | 1001-4241(2006)01-0020-07 |
| 收稿时间： | 2005-06-23 |
| 修稿时间： | 2005年6月23日 |
Review on Watershed Landscape Heterogeneity and Forest Dynamics Modeling |
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| Fang Xiangjing,Zhang Zhi,Sun Daqing and Li Xiaoyin.Review on Watershed Landscape Heterogeneity and Forest Dynamics Modeling[J].World Forestry Research,2006,19(1):20-26. |
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| Authors: | Fang Xiangjing Zhang Zhi Sun Daqing and Li Xiaoyin |
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| Institution: | 1.School of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China2.Yunnan Forestry Academy, Kunming 650204, China3.Qingdao Forestry Bureau, Qingdao 266000, Shandong Province, China4.Fire Extinguishing Department, Chinese Armed Police Force Forest Command School, Beijing 102202, China |
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| Abstract: | Relative concepts,theories and research of watershed landscape heterogeneity are summarized.The authors sum up the cause of formation of landscape heterogeneity and the composition of watershed landscape,and put forward the key of researching on watershed landscape heterogeneity is scaling of nested watershed.Nowadays,remote sensing(RS)and geographic information system(GIS)are applied widely on landscape studying.An important step of RS application is interpretation and classification,and moreover,the spatial analyses of modern GIS provides a new way of landscape heterogeneity and dynamic simulation study.Main means of dynamic landscape researching is modeling.The authors review heterogeneous population model,forest gap model and spatial explicit landscape model that aimed at forest and plant succession and disturbance.In the process of model parametrizing,reasonable types of variables must to be made certain.In the future,the development of forest dynamic model demands spatial attribute and change process to be combined and conformed. |
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| Keywords: | watershed landscape heterogeneity forest landscape model simulation |
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