自然杂志 ›› 2014, Vol. 36 ›› Issue (6): 391-396.

• 特约专稿 •    下一篇

灌丛化草原：一种新的植被景观

陈蕾伊① 沈海花② 方精云③   

  1. ①助理研究员，②副研究员，中国科学院植物研究所植被与环境变化国家重点实验室，北京 100093；③中国科学院院士，北京大学城市与环境学院，北京 100871；中国科学院植物研究所植被与环境变化国家重点实验室，北京 100093
  • 出版日期:2014-12-25 发布日期:2015-04-13
  • 通讯作者: 方精云，jyfang@urban.pku.edu.cn

Shrub-encroached grassland: a new vegetation type

CHEN Lei-yi①, SHEN Hai-hua② , FANG Jing-yun③   

  1. ①Assistant Professor, ②Associate Professor, State Key Laboratory of Vegetation and Environmental Change, Institute of Botany,Chinese Academy of Sciences, Beijing 100093, China; ③CAS member, College of Urban & Environmental Sciences, Peking University, 100871, China; State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Acdemy of Sciences, Beijing 100093, China
  • Online:2014-12-25 Published:2015-04-13
  • Contact: FANG Jing-yun, jyfang@urban.pku.edu.cn

PDF

1215

摘要： 灌丛化草原指灌木植物在草原基质上形成的团块状散布的斑块植被景观，它是在干旱半干旱地区出现的一种新的植被类型。作为灌草连续体，灌丛化草原中的灌木斑块与间隙处的草本斑块共同决定着该植被类型的群落学和生态学特征。笔者评述了灌丛化草原的分布、可能的形成原因、植被结构、物种组成及碳收支等结构特征及生态功能。

关键词: 干旱半干旱生态系统, 灌丛化, 灌木入侵, 沃岛效应, 植被类型

Abstract: Shrub-encroached grassland (SEG), referring to a mosaic landscape with shrub patches interspaced with grass patches, is becoming an important and new vegetation type in arid and semiarid region. As a shrub-grass-continuum, the development of shrub patch and grass patch in the SEG alters local and regional water and heat balance, and consequently determines the community structure and ecological function of the vegetation type. We reviewed the distribution, possible mechanism, vegetation characteristics, species composition, and carbon budget of SEG.

法律公告　|　 联系我们　|　 网站地图