生物多样性 ›› 2006, Vol. 14 ›› Issue (1): 41-47.doi: 10.1360/biodiv.050103

• 论文 • 上一篇    下一篇

黄河中游砒砂岩地区土地利用对生物多样性的影响评价

高清竹1, 何立环2, 江源3*, 杨劼4, 康慕谊3, 赵云龙1   

  1. 1 (中国农业科学院农业环境与可持续发展研究所, 北京 100081)
    2 (中国环境监测总站生态室, 北京 100029)
    3 (北京师范大学资源学院, 北京 100875)
    4 (内蒙古大学生命科学学院, 呼和浩特 010021)
  • 收稿日期:2005-05-09 修回日期:2005-10-25 出版日期:2006-01-20
  • 通讯作者: 江 源

Land-use impacts on biodiversity in the soft rock area of the middle reaches of the Yellow River

Qingzhu Gao1, Lihuan He2, Yuan Jiang3*, Jie Yang4, Muyi Kang3, Yunlong Zhao1   

  1. 1 Institute of Agricultural Environment and Sustainable Development, Chinese Academy of Agricultural Sciences, Beijing 100081
    2 China National Environmental Monitoring Center, Beijing 100029
    3 College of Resources Science, Beijing Normal University, Beijing 100875
    4 Department of Ecology and Environmental Science, Inner Mongolia University, Huhhot 010021
  • Received:2005-05-09 Revised:2005-10-25 Online:2006-01-20
  • Contact: Yuan Jiang

作者以长川流域附近的阿贵庙自然保护区的主要植被类型为对照, 通过对黄河中游砒砂岩地区长川流域内的各土地利用/覆盖类型之间的生物多样性的比较分析, 综合评价了人类土地利用活动对当地生物多样性的影响。结果表明: 沙棘(Hippophae rhamnoides)灌丛、草地、油松(Pinus tabuliformis)林地和中间锦鸡儿(Caragana intermedia)灌丛等土地利用类型的生物多样性指数较高; 进一步运用Sørenson指数分析发现, 仅中间锦鸡儿灌丛、草地和油松林三类与主要自然植被类型有着较高的相似性, 其Sørenson指数均在40%左右。综合考虑Shannon-Wiener指数与Sørenson指数, 草地、中间锦鸡儿灌丛、油松林地等类型对当地物种多样性的影响相对较弱, 有利于当地物种多样性的保护, 在植被恢复和建设过程中应相对增大种植比例。

In order to explore the effect of human activities such as vegetation restoration and reconstruction on plant communities, we compared species diversity of eight major land-use types in Changchuan watershed with that of Aguimiao Nature Reserve, a control of natural background, 40 km away from Changchuan. The results showed that seabuckthorn brushwood (dominated by Hippophae rhamnoides), grassland, Chinese pine woodland (dominated by Pinus tabuliformis),and intermediate peashrub brushwood (dominated by Caragana intermedia) supported relatively high species diversity. Intermediate peashrub brushwood, grass-land and Chinese pine woodland had comparatively high similarity with controls, with Sørensen indices at about 40%, indicating that the plant diversity of those three land-use types were more similar to the natural vegetation in this region. Synthetic Evaluation Indices (SEI) for land-use impact on biodiversity can be ob-tained by integrating Shannon-Wiener and Sørensen indices. The values of SEI of each land-use type ranked in the following order: grassland > Chinese pine woodland > intermediate peashrub brushwood > waste land > hankow willow brushwood > seabuckthorn brushwood > simon poplar woodland > crop land. Grassland, intermediate peashrub brushwood, and Chinese pine woodland should be adopted in the processes of vegeta-tion restoration and reconstruction, due to their functions of conserving local species diversity.

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