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生态学杂志 ›› 1993, Vol. ›› Issue (6): 62-66.

• 研究报告 • 上一篇    下一篇

秦岭南坡旬河流域及邻近地区森林与其生境关系的初步研究

康慕谊   

  1. 西北大学地理系, 西安710069
  • 收稿日期:1992-05-15 修回日期:1992-08-14 出版日期:1993-12-10

Relationship between Forest Vegetation and Its Habitats in Xunhe River Basin of Qinling Mountain and Its Adjacent Areas

Kang Muyi   

  1. Department of Geography, Northwest University, Xiaan 710069
  • Received:1992-05-15 Revised:1992-08-14 Online:1993-12-10

关键词: &ldquo, 拉开档次&rdquo, 法, 综合评价, 河流生态系统健康

Abstract: Principles of vegetation ecology and method of multivariate analysis(Double Sieving Step Regression)are applied to reveal the general relationship between forest vegetation and its habitats in the upper and mid-dle reaches of Xunhe River basin and their adjacent areas. The results show that the species diversity and richness of synusia have higher significance for indicating the correlation between forest community and habitats.Two primary conclusions are deduced from the results:(1)the dominant habitat factor guiding forest distribution and growth is elevation and (2)soil pH is also an important factor in affecting species growth of many communities.

Key words: “scatter degree&rdquo, method, comprehensive evaluation, river ecosystem health.