森林害虫灾害预警指标体系研究  

Studies on the Early-Warning Index System to Calamity of Forest Pest

作　　者：王桂清[1] 周长虹[1] 

机构地区：[1]沈阳农业大学林学院,辽宁沈阳110161

出　　处：《林业科技》2003年第5期21-24,共4页Forestry Science & Technology

摘　　要：森林害虫暴发频率高、危害程度重、经济损失大,其重要原因是对森林害虫灾害发生的预警能力差。确定森林害虫灾害预警指标应坚持可测性原则、可靠性原则、准确性原则、代表性原则,匹配性原则。森林害虫灾害预警指标体系应包括警情指标、譬源指标和警兆指标。Forest pest high to break out frequency, serious extent of injury have, disastrous economy have. Important reason its to become early- warning poor ability that take place to calamity, pest of forest, Confirm calamity, pest of forest, become early warning index should insist measurability principle, dependability principle, accuracy principle, representativeness principle, principle of matching etc.. The early - warning index system to calamity of forest pest should include alert feeling index, alert source index and alert promise index.

关 键 词：森林害虫灾害预警指标体系 警情指标 警源指标 警兆指标 

分 类 号：S763.3[农业科学—森林保护学]