| 半干旱区流域水文的景观生态研究与设计:地理信息系统辅助的过程模拟 |
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| 引用本文： | 冯兆东,刘勇,陈发虎.半干旱区流域水文的景观生态研究与设计:地理信息系统辅助的过程模拟[J].中国沙漠,2000,20(2):217-222. |
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| 作者姓名： | 冯兆东 刘勇 陈发虎 |
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| 作者单位： | 1. 兰州大学资源环境学院,甘肃,兰州,730000;Department of Earth and Environmental Studies, Montclair State University ,New Jersey,U.S.A
2. 兰州大学资源环境学院,甘肃,兰州,730000 |
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| 摘 要： | 人类正在面临严重的社会危机和环境危机，而这些危机均与人口听无节制增长及人类过分消耗能量有关。为了缓解或扭转 这种然机，除了减缓人口的增长外，必须提高能量使用和土地空间使用的有效性。实现这个目标的根本在于掌握好经济的可计量价值与生态的不可计量价值与生态的不可计量价值的平衡。掌握这个平衡的有效手段便是景观生态规划。根本在于掌握好经济的可计量价值与生态的不呆计量价值的平衡。掌握这个平稳的有效手段便是景观
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| 关 键 词： | 半干旱区 景观生态 模拟 GIS 流域水文 |
Landscape Approach to Watershed Hydrology in Semiarid Areas: GIS-Assisted Process Modeling |
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| FENG Zhao-dong,LIU Yong,CHEN Fa-hu.Landscape Approach to Watershed Hydrology in Semiarid Areas: GIS-Assisted Process Modeling[J].Journal of Desert Research,2000,20(2):217-222. |
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| Authors: | FENG Zhao-dong LIU Yong CHEN Fa-hu |
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| Abstract: | The ecological integrity of a landscape is often threatened by economic developments. The balance between economy and ecology can be achieved through a landscape approach. A landscape approach is to create an ecologically sound landscape with possibilities for the development of conflicting types of land use. This involves the reallocation of land use types in a way that adverse impacts are balanced out. The reallocation of land use types should correspond to the potentials of the natural physical structures. A landscape approach considers the spatial interactions among adjacent managed or unmanaged ecosystems and how those interactions affect water resources and landscape ecology. For modeling and assessing both water resources and landscape ecology, success lies in our ability to perform watershed simulation with a system that integrates GIS with other spatial models. An integrated analysis of the coupling relationship between water systems and land uses can effectively assess ecological sustainability. An integrated analysis of the coupling relationship between surface water and groundwater systems can effectively evaluate aquifer vulnerability. Without an understanding of watershed hydrology, it is impossible to comprehend the temporal and spatial variations in water resource and landscape ecology. It is recognized that optimal spatial arrangement of conflicting land uses may actually reduce the flood threats and minimize the water quality problems without jeopardizing the economic development. Thus, it is our goal to model these hydrological issues and associated landscape ecological problems by integrating GIS with other spatial models so that optimal spatial solutions can be found for the coupling watershed: Mahan Mountain/Xinlun Mountains and Lanzhou/Yuzhong Basins. |
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| Keywords: | semiarid area landscape ecology GIS modeling |
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