| 干旱内陆河流域景观生态的空间格局分析——以黑河流中游地区为例 |
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| 引用本文： | 王根绪,程国栋. 干旱内陆河流域景观生态的空间格局分析——以黑河流中游地区为例[J]. 兰州大学学报(自然科学版), 1999, 0(1) |
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| 作者姓名： | 王根绪 程国栋 |
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| 作者单位： | 兰州大学地质系(王根绪)，中国科学院兰州冰川冻土研究所(程国栋) |
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| 摘 要： | 干旱内陆河流域景观的空间结构受水土资源开发利用程度制约．通过划分景观分区和选取景观空间格局指标，分析研究了黑河流域中游地区景观的空间格局特征及其与人类活动及自然环境的关系，结果表明：１．土地资源开发程度高的区域，景观多样性、均匀性和破碎度值较大，景观优势度和分离度值则较小；２．研究区中部及南部耕地已成为主要景观类型．土地开发利用程度高，但中部绿洲区退化景观已具相当规模，且随沿山洪积扇区土地开发程度的提高，中下游生态环境退化趋势将加剧．
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| 关 键 词： | 内陆河流域；景观生态；空间格局；土地开发 |
The Spatial Pattern Analysis of Landscape in Arid Inland River Basin A Case Study of the Middle Reaches of Heihe River |
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| Wang Genxu ,,Cheng Guodong. The Spatial Pattern Analysis of Landscape in Arid Inland River Basin A Case Study of the Middle Reaches of Heihe River[J]. Journal of Lanzhou University(Natural Science), 1999, 0(1) |
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| Authors: | Wang Genxu Cheng Guodong |
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| Affiliation: | Wang Genxu 1,2,Cheng Guodong 2 |
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| Abstract: | The spatial pattern of ecological landscape in an inland river basin is influenced heavily by the scale of water and land resources development. In this paper, the middle reaches of Heihe River basin was selected for case study. The region was divided into three parts and some indices were chosen to analyze the spatial pattern of landscape and its relationship with human activity, natural environment and landscape structure. The results show that:1 the highly developed area had a larger landscape diversity and nomogenity while the landscape dominance and fragmentation were less and water resources were more abundant in the aspect of natural conditions; 2 the farming land was the main landscape in the southern and middle regions of this area, but the degenerated landscape had a large scale and the degradation of ecological environment in middle and lower reaches would be aggravated in pace with the improvement of agricultural landscape in the bajada region. |
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| Keywords: | inland river basin landscape ecology spatial pattern land development |
| 本文献已被 CNKI 等数据库收录！ |
