放牧及刈割强度对鸭茅密度及能量积累的影响

应用生态学报 ›› 2001, Vol. 12 ›› Issue (6): 955-957.

放牧及刈割强度对鸭茅密度及能量积累的影响

包国章¹, 李向林², 白静仁²

1. 吉林大学环境科学与工程系, 长春, 130012;
2. 中国农科院畜牧研究所, 北京, 100094

收稿日期:1999-06-29 修回日期:1999-11-15 出版日期:2001-11-25 发布日期:2001-11-25
通讯作者: 包国章,男,1968年生,讲师,博士,主要从事草地生态学研究,发表论文10篇.Email:des@mail.glu.edu.cn E-mail:des@mail.glu.edu.cn
基金资助:
国家"九五"科技攻关资助项目(96-016-02-02).

Effect of grazing and mowing intensity on density and energy accumulation of

BAO Guozhang¹, LI Xianglin², BAI Jing ren²

1. Department of Environmental Science and Engineering, Jilin University, Changchun 130012;
2. Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100094

Received:1999-06-29 Revised:1999-11-15 Online:2001-11-25 Published:2001-11-25

摘要/Abstract

Abstract: The population density,caloric value and energy accumulation of Dactylis.glomeratawere significantly increased after moderate grazing.Tuft size was decreased,while the tuft density was significantly increased due to the high grazing intensity which showed the different reproductive strategies on the sites with various grazing intensities.Both inadequate grazing and over-grazing lowered the density and energy accumulation of D.glomerata.65% rate of consumption of the grasses,or 4 times of mowing in 1 year contributed to the rapid growth of D.glomerataand the sustainable development of the grassland.

中图分类号:

Q142

包国章, 李向林, 白静仁. 放牧及刈割强度对鸭茅密度及能量积累的影响[J]. 应用生态学报, 2001, 12(6): 955-957.

BAO Guozhang, LI Xianglin, BAI Jing ren. Effect of grazing and mowing intensity on density and energy accumulation of [J]. Chinese Journal of Applied Ecology, 2001, 12(6): 955-957.