Plant Community Indications for Judging the Degree of Degradation of the Leymus chinensis Steppes

doi:10.11733/j.issn.1007-0435.2006.04.010

›› 2006, Vol. 14 ›› Issue (4): 343-348.DOI: 10.11733/j.issn.1007-0435.2006.04.010

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Plant Community Indications for Judging the Degree of Degradation of the Leymus chinensis Steppes

LIANG Yan¹, HAN Guo-dong², ZHOU He¹, ZHAO Meng-li², SHAN Dan², ZHENG Shu-hua²

1. College of Animal Science and Technology, China Agricultural University, Beijing 100094, China;
2. Department of Ecology and Environment, Inner Mongolia Agricultural University, Huhhot, Inner Mongolia Autonomous Region 010019, China

Received:2006-04-23 Revised:2006-07-25 Online:2006-11-15 Published:2006-11-15

羊草草原退化程度判定的植物群落学指标

梁燕¹, 韩国栋², 周禾¹, 赵萌莉², 珊丹², 郑淑华²

1. 中国农业大学动物科技学院, 北京, 100094;
2. 内蒙古农业大学生态环境学院, 呼和浩特, 010019

通讯作者: 韩国栋,E-m ail:nmghangd@hot mail.com
作者简介:梁燕(1977- ),女,内蒙古呼和浩特人,博士研究生,研究方向为草地生态与管理,E-mail:liangyan409@163.com
基金资助:
国家自然科学基金重点项目(30360022);国家自然基金项目(30440051)

Abstract

Abstract: An experiment was carried out on a Leymus chinensis steppe in the Keshiketeng Banner of Chifeng, Inner Mongolia, in a research site located east of the Dalinuoer natural reserve area. The steppe was classified quantitatively according to the different degrees of degradation and the plant community characteristics, based on the quantitative indicators primarily suggested for identifying the grassland degradation degree, and for the local herders to use their family grazing land more reasonably. The experimental results show that by the distinct degree of degradation the semiarid grassland can be classified into three zones: they were within 0～1700 m,1700～2700 m, and 2700～4100 m between the hay cutting pasture and the residential area. The standing crops of Cleistogenes squarosa, Patentilla acaulis,and L.chinensis during their flourishing growth period were the most sensitive indications for an easy judgment of the degree of grassland degradation on the L.chinensis steppe.

Key words: Leymus chinenesis steppe, Grassland degradation, Plant community indications

摘要： 研究对象为内蒙古赤峰市克什克腾旗达里诺尔自然保护区境内的羊草草原,以植物群落为特征,应用逐步聚类分析方法定量划分出了不同退化程度的草地,并且对区分不同退化程度的草地植被指标选择做了初步的尝试,为牧民合理利用当地家庭牧场提供决策依据。聚类结果为从对照区(冬季打草场)出发到居民点附近存在三段不同退化程度的草地,依次为0~1700m、1700~2700m和2700~4100m范围内的区域;通过测定生长盛期主要伴生植物种糙隐子草、星毛委陵菜及群落建群种羊草的地上现存量这3项敏感的植被指标,可以实现羊草草原退化程度的定量判定。

关键词: 羊草草原, 退化程度, 植物群落学指标

CLC Number:

S812
Q948.15

LIANG Yan, HAN Guo-dong, ZHOU He, ZHAO Meng-li, SHAN Dan, ZHENG Shu-hua. Plant Community Indications for Judging the Degree of Degradation of the Leymus chinensis Steppes[J]. , 2006, 14(4): 343-348.

梁燕, 韩国栋, 周禾, 赵萌莉, 珊丹, 郑淑华. 羊草草原退化程度判定的植物群落学指标[J]. , 2006, 14(4): 343-348.

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Plant Community Indications for Judging the Degree of Degradation of the Leymus chinensis Steppes

羊草草原退化程度判定的植物群落学指标

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