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.
出处
《林业科技》
北大核心
2003年第5期21-24,共4页
Forestry Science & Technology
