地理学报 ›› 1996, Vol. 63 ›› Issue (S1): 66-72.doi: 10.11821/xb1996S1007

• 论文 • 上一篇    下一篇

我国自然植被生产力功能和地带性结构的气候耦合

朱志辉   

  1. 中国科学院国家计划委员会地理研究所,北京100101
  • 收稿日期:1996-08-01 修回日期:1996-11-01 出版日期:1996-12-15 发布日期:1996-12-15
  • 基金资助:
    国家科委全球气候变化国家研究项目

CLIMATIC COUPLING BETWEEN NATURAL VEGETATIONAL PRODUCTIVITY FUNCTION AND ZONALITY STRUCTURE IN CHINA

Zhu Zhihui   

  1. Institute of Geography. Chinese Academy of Sciences. Beijing 100101
  • Received:1996-08-01 Revised:1996-11-01 Online:1996-12-15 Published:1996-12-15

摘要: 本文用北京模型研究了我国自然植被净初级生产力(NPP)的分布,给出了各植被区NPP的大致范围,并用图解模型揭示了气候因子、植被生产力功能和地带性结构之间的耦合关系。结果表明,净辐射和辎射干燥指数的函数组合既是确定植被NPP的主导因子,又能在很大程度上说明植被地带性结构的有序排列。在研究植被分布和分区时引入NPP指标可以更简捷地阐明有关规律。另外,如将净辐射表示为生物温度或潜在蒸散,北京模型则可用于气候变化对植被影响的研究,还可与Holdridge的生命带方法进行比较。

关键词: 自然植被, 净初级生产力, 生态系统, 功能, 结构

Abstract: In this paper, the Beijing model was used to elucidate the distribution of the net primary productivity (NPP) of natural vegetation in China. The range of NPP in each vegetation region was given. A graphicmodel was proposed to explain the coupling relations among climatic factors, NPP and vegetation types.The results indicate that the functional combination of net radiation and radiative dryness index may not only determine NPP, but also elucidate basically the ordinal range of vegetation types. In study for vegetation distribution and regionalization, NPP index can be introduced as an effective tool by which somerelevant regulations may be elucidated simply and directly. Furthermore, Beijing model can also be used tostudy the impact of climate change on vegetation if we express the net radiation in terms of biotemperatureor potential evapotranspiration. In such a case, we can compare Beijing model with Holdridge's "life zones" scheme.

Key words: natural vegetation, net primary productivity, ecosystem, function, structure.

中图分类号: 

  • P942