欢迎访问《草业学报》官方网站,今天是 分享到:

草业学报 ›› 2009, Vol. 18 ›› Issue (6): 198-204.

• • 上一篇    下一篇

高原鼠兔的经济损害水平及防治指标研究

王兴堂,花立民,苏军虎,曹慧,祁晓梅,刘荣堂*   

  1. 甘肃农业大学草业学院,甘肃 兰州 730070
  • 收稿日期:2008-11-24 出版日期:2009-12-20 发布日期:2009-12-20
  • 作者简介:王兴堂(1966-),男,甘肃灵台人,副教授,在读博士。E-mail:wangxt@gsau.edu.cn
  • 基金资助:
    世界银行/全球环境基金-Global Environmental Facility项目(052456 CHA)资助

A study on the economic injury level of plateau pika (Ochtona curzoniae) and its control index

WANG Xing-tang, HUA Li-min, SU Jun-hu, CAO Hui, QI Xiao-mei, LIU Rong-tang   

  1. College of Pratacultural Science, Gansu Agricultural University, Lanzhou 730070, China
  • Received:2008-11-24 Online:2009-12-20 Published:2009-12-20

摘要: 2007-2008年在肃南县大河乡大岔村的高寒草甸和高寒草原对高原鼠兔的经济损害水平及防治指标研究的结果表明,高原鼠兔种群数量与其危害所造成草原牧草减产量(地上植物)及经济损失呈正相关关系,相关系数为:r=0.976 5;高原鼠兔的有效洞口数(X)与牧草减产量(M)的线性回归方程为:M=-16.960 3+0.918 0X;在1 330 hm2范围内用C型肉毒梭菌生物毒素进行防治,核算单位面积防治成本为25.05元/hm2;试验期间,高原鼠兔的实际鼠密度高达510有效洞口/hm2,经济损害水平为130有效洞口/hm2;实际经济损失率高达32.9%,而经济允许损失率只有11.2%。根据经济允许损失率测算的有效防治指标为185有效洞口/hm2

Abstract: The economic injury level of plateau pika (Ochtona curzoniae) and its control index were studied in the alpine meadow and alpine steppe of Dacha village in Sunan County from 2007 to 2008. The population of plateau pika was positively correlated with the reduction of prairie grass production (aboveground biomass) and the economic losses with the correlation coefficient (r)=0.976 5. The linear regression equation between the number of plateau pika’s effective holes (X) and grass production reduction (M) was M=-16.960 3+0.918 0X. The control costs per unit area were 25.05 yuan/hm2 when Clostridium botulinum type C was used for biological control in this area of 1 330 hm2. It was confirmed that the economic injury level of plateau pika was 130 effective holes/hm2 and the allowed economic loss ratio was calculated as 11.2%. the actual density of plateau pika was 510 effective holes/hm2 and the economic loss ratio was up to 32.9% in the research area.

中图分类号: