欢迎访问《应用生态学报》官方网站,今天是 分享到:

应用生态学报 ›› 1999, Vol. 10 ›› Issue (5): 539-541.

• 研究论文 • 上一篇    下一篇

东北地区蒙古栎群落区系地理成分分析

于顺利, 马克平, 陈灵芝   

  1. 中国科学院植物研究所, 北京100093
  • 收稿日期:1999-03-18 修回日期:1999-04-28 出版日期:1999-09-25 发布日期:1999-09-25
  • 通讯作者: 于顺利,男,1965年12月26日生,博士,助理研究员,从事植物分类与植被生态学研究,发表论文20余篇.
  • 基金资助:

    中国科学院重点资助项目(KZ9522SI2127).

Analysis on phytogeographical elements of Quercus mongolica community in northeast China

Yu Shunli, Ma Keping, Chen Lingzhi   

  1. Institute of Botany, Academia Sinica, Beijing 100093
  • Received:1999-03-18 Revised:1999-04-28 Online:1999-09-25 Published:1999-09-25

摘要: 分析了东北地区蒙古栎群落192个属分布区类型,其中温带分布属占72%,热带分布属占9.7%.也比较了东北地区10个地点和河北省1个地点的蒙古栎群落物种所在属的分布区类型,统计了不同地点属的分布区类型占总属的比例,计算了温带属与热带属(T/R)的比值,结果发现蒙古栎群落的温带分布属和T/R值(温带属和热带属之比值)不仅受纬度地带性影响,也受垂直地带性影响;在海拔相差不大的情况下蒙古栎群落T/R值随着纬度的递增而递增,热带分布属随着纬度递增而减少。垂直地带性对T/R之比率也有较大的影响,使得T/R值随纬度变化时出现波动。并给出了T/R值、纬度和海拔三者关系的回归方程,结果表明T/R值与纬度、海拔有着比较精确的数量关系。最后对这种分布格局产生的原因进行了解释.

关键词: 东北地区, 蒙古栎群落, 区系地理成分, T/R值, 回归方程, 灌溉量, 温室气体, 小麦-玉米轮作, 净增温潜势, 碳足迹

Abstract: The distribution types of 192 genera of Quercus mongolica community in10 sites of northeast China and one site of Hebei Province were analyzed, and the proportion of each type to the total as well as the ratio of temperate genera to tropical genera (T/Rratio) in each site were calculated. Among the distribution types in northeast China, those of the temperate and tropical genera accounted for 72.0% and 9.7%, respectively. The latitude and altitude could affect the genera distributed in temperate zone and their T/Rratio. The T/Rratio increased with increasing latitude, while the number of tropical genera decreased if the altitudes were the same or similar. Altitude could affect T/Rratio more obviously, causing its fluctuation with latitude. The regression equation of T/Rratio with latitude and altitude was given, and the reasons producing this distribution pattern were also explained.

Key words: Northeastern China, Quercus mongolica, Phytogeographical elements, T/R ratio, Regression equation, carbon footprint, wheat-maize rotation system, greenhouse gas (GHG), net global warming potential (NGWP), irrigation amount