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林业科学 ›› 2000, Vol. 36 ›› Issue (2): 47-52.doi: 10.11707/j.1001-7488.20000208

• 论文及研究报告 • 上一篇    下一篇

气候变化对我国珍稀濒危树种——珙桐地理分布的影响研究

张清华 郭泉水 徐德应 阎洪   

  1. 中国林业科学研究院森林生态环境研究所,北京100091;中国林业科学研究院林业研究所,北京100091
  • 收稿日期:1996-09-19 修回日期:1900-01-01 出版日期:2000-03-25 发布日期:2000-03-25

INFLUENCE OF CLIMATE CHANGES ON GEOGRAPHICAL DISTRIBUTION OF DAVIDIA INVOLUCRATA, THE PRECIOUS AND ENDANGERED SPECIES NATIVE TO CHINA

Zhang Qinghua,Guo Quanshui,Xu Deying,Yan Hong   

  1. Research Institute of Forest Ecology and Environmental Science, CAF Beijing100091;Research Institute of Forestry, CAF Beijing100091
  • Received:1996-09-19 Revised:1900-01-01 Online:2000-03-25 Published:2000-03-25

摘要:

本文在珙桐地理分布规律研究的基础上,应用地理信息系统IDRISI和专门计算机软件 生态信息系统GREEN ,找出适宜珙桐分布的气候参数区间,并以此确定了珙桐的适宜分布区,在此基础上根据全球气候预测模型GCMs 预测的2030年气候变化的结果,就气候变化对珙桐地理分布的可能影响进行了模拟预测。结果表明:到2030年珙桐的适宜分布区将发生改变,其中,适宜分布区的东界约向西移动0°18′~1°18′,西界东南段约向东移动0°18′~1°54′,北界和南界变化不大;2030年适宜珙桐分布的面积比当前气候条件下适宜珙桐分布的面积约减少20%。本文还结合珙桐的生物学特性和生态学特性,就气候变化对珙桐影响的可能性作了进一步的讨论。

关键词: 珙桐, 地理分布, 地理信息系统, 生态信息系统

Abstract:

Based on the studies of geographical distribution of dovetree, a GIS, named INDRISI, and designed software of ecological information system GREEN, were applied in this paper to find the climate parameter suitable for dovetree growth, from which the natural distribution scope of dovetree was defined. Furthermore, according to the prediction of climate change in 2030 by GCM s, the possible effects of climate changes on the distribution of dovetree were predicted. It suggests that the geographical distribution of dovetree will change in 2030 with 0°18′~1°18′ longitude moving toward west in the east boundary and 0°18′~1°54′ longitude toward east in the southeast part of west boundary and no changes in the south and north boundary. By 2030, the area of dovetree will decrease 20% compared to nowdays. The effect of climate changes on dovetree was further discussed according to its biological characteristics and adaptation to climate changes.

Key words: Davidia involucrata, Geographical distribution, Geographical information system(GLS), Ecological information system(GREEN)