地理科学 ›› 2002, Vol. 22 ›› Issue (2): 219-225.doi: 10.13249/j.cnki.sgs.2002.02.219

• 论文 • 上一篇    下一篇

东北地区植被过渡带生态气候学研究

吴正方   

  1. 1. 东北师范大学教育部植被生态重点实验室, 吉林 长春 130024;
    2. 东北师范大学城市与环境科学学院, 吉林 长春 130024
  • 收稿日期:2001-03-28 修回日期:2002-01-20 出版日期:2002-03-20 发布日期:2002-03-20

Eco-climatic Study on Vegetation Transition Zones in Northeast China

WU Zheng-fang   

  1. 1. Key Lab. of Vegetation Ecology of Ministry of Education, Northeast Normal University, Changchun, Jilin 130024;
    2. Faculty of Urban Environmental Sciences, Northeast Normal University, Changchun, Jilin 130024
  • Received:2001-03-28 Revised:2002-01-20 Online:2002-03-20 Published:2002-03-20

摘要: 温度和水分是决定植被分布重要的能量和物质基础,其长时间尺度的变化和短时间尺度的波动是植被过渡带形成和分布的主要原因。从生态气候保证率出发,以桑斯威特(C. W. Thonthwaite)温度效率指数(PE)的90%保证率为过渡带上边界和10%保证率为过渡带下边界,定量地划分了东北地区由南向北因温度差异形成的森林植被过渡带; 以湿润指数(Im) 的80%保证率为过渡带上边界和20%保证率为过渡带下边界,定量地划分了由东向西因水分差异产生的森林、草甸草原和典型草原间的过渡带。

Abstract: As the basis of energy and substance, temperature and water play very important role in distribution of vegetation zones. Their long-term scale change and short-term scale fluctuation are essential causes of formation and distribution of vegetation transition zone. By using 90% ratio of eco-climatic factor's assurance of Thornthwaite PE as upper limit and 10% as lower limit of vegetation transition zone, forest vegetation transition zones of Northeast China are quantitatively classified. And 80% ratio of eco-climatic factor's assurance of Thornthwaite Im as upper limit and 20% as lower limit of vegetation transition zone forest/meadow/ prairie vegetation transition zones are classified.

中图分类号: 

  • P461+.7