草地学报

›› 2003, Vol. 11 ›› Issue (4): 283-288.DOI: 10.11733/j.issn.1007-0435.2003.04.002

• 研究论文 • 上一篇    下一篇

羊草草原植被监测方法的比较研究

王国杰, 汪诗平   

  1. 中国科学院植物研究所数量植被生态学重点实验室, 北京, 100093
  • 收稿日期:2003-01-21 修回日期:2003-06-04 出版日期:2003-11-15 发布日期:2003-11-15
  • 作者简介:王国杰,男,1980年4月生,内蒙古赤峰市人,中国科学院植物研究所硕士研究生
  • 基金资助:
    中国科学院知识创新工程重要方向项目(KSCX2-SW-107)资助

Comparative Study on the Sampling Methods of the Leymus chinensis Grassland of Inner Mongolia Autonomous Region

WANG Guo-jie, WANG Shi-ping   

  1. National Laboratory of Quantitative Vegetation Ecology, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093
  • Received:2003-01-21 Revised:2003-06-04 Online:2003-11-15 Published:2003-11-15

PDF

摘要： 在草原长期生态监测和研究过程中,观测方法的一致性和可比性是保证数据质量及其控制的关键环节,预防观测误差比纠正误差要容易得多。因此,选择什么样的取样方法,在现代标准化和网络化的监测和研究活动中至关重要。通过对两种样线法、巢式样方法和1m×1m样方法等4种方法监测羊草草原植物物种丰富度和生产力的比较研究发现,在草原植被监测,尤其是长期监测过程中,宜将物种丰富度的监测与生产力的监测分离开来。在以物种丰富度为监测目的时,样线法为宜,最小样线长度为400m;在以监测羊草草原群落地上生物量为目的时,1m×1m样方法为宜,最少样方数为10。这样既可以缩小长期固定监测样地的面积,又可以节省人力、物力和财力。

关键词: 草原学, 羊草草原, 植被监测方法, 内蒙古草原

Abstract: In the long-term monitoring and study of the Inner Mongolia grassland ecology,solid conclusions often follow standardized sampling methods and accurate statistics.The present study used two line transects,nest method,and quadrate method of 1m×1m to monitor the species richness and the productivity of the L.chinensis grassland.It is concluded that when monitoring the grassland vegetation,more particularly,for a long-term period,checking of the species richness should be separated from the monitoring of the grassland’s aggregate productivity.When targeting the former,line transect method is a better choice and the minimum length of the line should be 400 m.When monitoring the L.chinensis grassland biomass quantity,1m×1m quadrate method is better used and the least quadrate number should be 10.Thus,while only a limited long-term,fixed sampling plot is used,manpower,natural resources,and expenses are saved.

Key words: Grassland science, Leymus chinensis community, Vegetation sampling methods, Inner Mongolia grassland(steppe)