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文山松毛虫危害程度与发生范围预测预报研究
A Preliminary Study on the Forecast of Harm Extent and Occurrence Area of Dendrolimus punctatus wenshanensis
【摘要】 编制了文山松毛虫预测预报虫灾级数表 ,提出了文山松毛虫危害程度初步测报式 .利用马尔可夫链模型分析法进行了文山松毛虫发生面积的预测预报 ,准确性较高
【Abstract】 The preliminary forcast formula of harm extent was developed on the basis of insect plague progression table of Dendrolimus punctatus wenshanensis ,and the forecast of occurrence area was also obtained by Markov chain method with high accuracy.
【关键词】 文山松毛虫;
危害程度;
发生范围;
预测预报;
【Key words】 Dendrolimus punctatus wenshanensis; harm extent; occurrence area; forecast;
【Key words】 Dendrolimus punctatus wenshanensis; harm extent; occurrence area; forecast;
【基金】 云南省应用基础研究重点基金项目 ( 98C0 0 7Z)
- 【文献出处】 西南林学院学报 ,Journal of Southwest Forestry College , 编辑部邮箱 ,2003年01期
- 【分类号】S763.421.5
- 【被引频次】6
- 【下载频次】90