您的位置:首页  > 论文页面

呼伦贝尔草原沙漠化演化人类因素及趋势研究

发表时间:2008-01-15  浏览量:2086  下载量:864
全部作者: 周尧治,郭玉海
作者单位: 中国农业大学农学与生物技术学院;呼伦贝尔草原生态系统国家野外科学观测研究站
摘 要: 本文利用呼伦贝尔草50年的人口、畜牧业和耕地的统计资料结合呼伦贝尔市沙漠化普查和文献资料对人类活动对草原沙漠化的影响进行了统计分析。结果表明:呼伦贝尔草原开垦面积和畜牧业的各项指标与草原沙漠化程度有明显的正相关关系,并且人类活动对草原沙漠化具有明显的累加效应,其关联程度随时间尺度的变化趋势是—草原耕地面积在14a平均的尺度上达到最高,而草原畜牧业各项指标均在13a平均的尺度上达到最高。由于呼伦贝尔草原在上世纪90年代末的大面积开垦和近年来畜牧业的持续快速发展、 但草原管理却相对薄弱等原因,在未来的十年里如果不采取特殊措施,呼伦贝尔草原沙漠化将会进入一个快速发展的时期。
关 键 词: 生态学;演化;沙漠化;呼伦贝尔草原
Title: Studies on human activities and trend about the evolvement of desertification in Hulunbeir grassland
Author: ZHOU Yaozhi, GUO Yuhai
Organization: College of Agronomy and Biotechnology, China Agricultural University;Hulunbeier State Atation of Grassland Ecosystem Field Observation and Scientific Research
Abstract: This paper analyses the relationship between human activities and the evolvement of desertification in Hulunbeir grassland with the data of population, stockbreeding and reclamation in last 50 years.It is found that there is a strong correlation between human activities and the degree of desertification. And human activities imposed significant cumulative impacts on desertification.The reclamation showed the most significant cumulative impacts on desertification in the fourteenth year while that of the stockbreeding on desertification came to a maximum in the thirteenth.Due to cosmical reclamation during the end of last century, the stockbreeding’s rapid development at present and the weak grassland management, the desertification in Hulunbeir grassland will rapidly outspread in the next 10 years.
Key words: Ecology; Evolvement; Desertification; Hulunbeir grassland
发表期数: 2008年5月第1期
引用格式: 周尧治,郭玉海. 呼伦贝尔草原沙漠化演化人类因素及趋势研究[J]. 中国科技论文在线精品论文,2008,1(1):42-48.
 
0 评论数 0
暂无评论
友情链接