| 沙坡头地区人工-自然景观空间格局研究 |
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| 引用本文： | 施维林,李自珍,王兮之.沙坡头地区人工-自然景观空间格局研究[J].兰州大学学报(自然科学版),2002,38(1):84-89. |
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| 作者姓名： | 施维林 李自珍 王兮之 |
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| 作者单位： | 1. 兰州大学,干旱农业生态国家重点实验室,甘肃,兰州,730000;中国科学院,寒区旱区环境与工程研究所,沙坡头开放实验站,甘肃,兰州,730000
2. 兰州大学,干旱农业生态国家重点实验室,甘肃,兰州,730000 |
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| 基金项目： | 国家自然科学基金 (39970 135 ,30 0 70 139)，中科院沙坡头实验站资助项目 |
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| 摘 要： | 研究人类活动对景观的影响是景观生态学研究的一个很重要的方面。人工－自然荒漠景观的空间结构受其沙漠背景的强烈影响，同时受强化了的人工干扰的影响，其格局带有明显的人为作用，对沙坡头地区荒漠景观生态空间格局基本特点、景观嵌块体类型及人类活动和自然的关系进行了分析，随着人类活动的加剧，景观多样性加大，均匀性、破碎度值和分离度值较大，为人活动已改变了荒漠局地的特性，生态恶化受到一定的遏止，但沙化影响正在威胁着人类对荒漠管理的成果，提出荒漠人工－自然景观研究中应注重景观生态风险及动态监测系统的研究。
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| 关 键 词： | 荒漠 人工－自然景观 空间格局 景观分类 景观生态学 沙坡头地区 景观管理 |
| 文章编号： | 0455-2059(2002)01-0084-06 |
| 修稿时间： | 2001年2月28日 |
The spatial pattern analysis of man-made natural landscape in Shapotou area |
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| SHI Wei-lin ,LI Zi-zhen ,WANG Xi-zhi.The spatial pattern analysis of man-made natural landscape in Shapotou area[J].Journal of Lanzhou University(Natural Science),2002,38(1):84-89. |
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| Authors: | SHI Wei-lin LI Zi-zhen WANG Xi-zhi |
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| Institution: | SHI Wei-lin 1,2,LI Zi-zhen 1,WANG Xi-zhi 1 |
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| Abstract: | The impact of human activity on landscape pattern has been a very important field of landscape ecology.The spatial pattern of man-made natural desert landscape is not only affected by desert itself and also by human disturbances obviously.The relationship between human activity and the structure of the man-made natural landscape is discussed.With the strengthening of human activity,the landscape is becoming more fragmented and diversified,its evenness and separating degree getting larger.Though the landscape features have been changed partly and the ecological worsening inhibited to some degree,the desertification is threatening the human management.It is concluded that the human activity has a strong impact on the landscape structure.Hence,the ecological risk and the dynamic monitoring system should be studied with great care. |
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| Keywords: | desert man-made natural landscape spatial pattern landscape classification patch |
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