| 甘肃鼢鼠对农作物的为害程度及防治中经济阈值的初步研究 |
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| 引用本文： | 杨宏亮,王廷正.甘肃鼢鼠对农作物的为害程度及防治中经济阈值的初步研究[J].植物保护学报,1992,19(3):283-287. |
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| 作者姓名： | 杨宏亮 王廷正 |
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| 作者单位： | 陕西师范大学生物系, 西安,陕西师范大学生物系, 西安 |
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| 摘 要： | 1989年4-11月,对黄土高原农作区甘肃鼢鼠(Myospalax cansus)的不同密度,以及对农作物造成的为害程度和防治中的经济阈值诸问题进行了初步研究。根据鼢鼠不同密度及作物损失率,将其对农作物的为害程度分成6个等级。在防治鼢鼠中,作者根据鼢鼠对农作物所造成的损失、防治费用和农产品价格,提出了黄土高原农作区鼢鼠防治的经济阈值模型。并初步确定,鼢鼠密度达到3.1只/ha时,需开始进行防治。这样将会避免农作物遭受损失。
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| 关 键 词： | 甘肃Qu鼠 种群密度 为害 经济阈值 |
STUDIES ON THE DEGREE OF INJURY BY ZOKER AND ECONOMIC THRESHOLD OF ITS CONTROL |
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| Yang Hongliang and Wang Tingzheng.STUDIES ON THE DEGREE OF INJURY BY ZOKER AND ECONOMIC THRESHOLD OF ITS CONTROL[J].Acta Phytophylacica Sinica,1992,19(3):283-287. |
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| Authors: | Yang Hongliang and Wang Tingzheng |
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| Institution: | Department of Biology, Shaanxi Normal University and Department of Biology, Shaanxi Normal University |
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| Abstract: | From April to November 1989,the author studied the population density,the degree of injury of zoker and economic threshold of its control.Gansu zoker,Myospalax cansus,is the chief harmful rat in the agricutural area of loess plateau and can cause tremendous losses to crops.This study stipulated the economic injurys to six categories and proposed that when the density of zoker reaches 3.1 zokers/per hectare,control action must be started in order to get a good economic result. |
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| Keywords: | Myospalax cansus population density damage level economic threshold |
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