您好，欢迎访问中国热带农业科学院 机构知识库！
中国热带农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Effect of the grasshopper Oedaleus asiaticus on plant compensation in the steppe

文献类型： 外文期刊

作者： Lu, Hui 1 ; Chen, Qing 1 ; Lu, Fuping 1 ; Xu, Xuelian 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Danzhou 571737, Hainan, Peoples R China

关键词： Oedaleus asinticus;cage trials;compensation growth;ecological threshold

期刊名称：ADVANCES IN BIOMEDICAL ENGINEERING

ISSN： 2160-0589

年卷期： 2011 年

页码：

收录情况： SCI

摘要： Studies were carried out in the Inner Mongolian steppe grassland to assess the damage of the grasshopper Oedaletts asiaticus B. Bienko on compensation growth of forage. The studies were under different grasshopper densities (0, 4, 8, 16, 24 grasshoppers/m(2)) at 5 different instar levels (3rd instars, 4th instars, 5th instars and adults), and their effects were compared. The results showed that grasshoppers at relatively low population density levels (0-4 grasshoppers/m(2)) had obvious positive effect on compensation growth of forage, while population of 8-16 grasshoppers/m(2) under low instars (3rd instars, 4th instars) were beneficial to the growth of grass and had a overcompensation function to herbs. Feeding of 5th instar and adult grasshoppers with high density population (>8 grasshoppers/m(2)) was damaged to the growth of forage grass and the quality of pasture ground decreased with the increase of grasshopper density. The results indicated that due to the compensation growth of herbs caused by grasshoppers, the controlling index of grasshoppers should employ the ecological threshold which was higher than the common used existing economic threshold.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：中国热带农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台