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| 基于变异函数的油松毛虫虫情监测点布点方法研究 | |
| 引用本文： | 刘朝辉,赵杰,姜宏瑾,白胜文.基于变异函数的油松毛虫虫情监测点布点方法研究[J].中国森林病虫,2012,31(1):9-11. |
| 作者姓名： | 刘朝辉 赵杰 姜宏瑾 白胜文 |
| 作者单位： | 1. 喀左县森林病虫害防治检疫站,辽宁喀左,122300 2. 国家林业局森林病虫害防治总站,辽宁沈阳,110034 3. 中国吉林森林工业集团有限责任公司,吉林长春,130021 |
| 摘 要： | 通过变异函数工具研究了喀左县油松毛虫Dendrolimus tabulaeformis发生的空间异质特征。变异分析表明:喀左县油松毛虫发生变异函数的理论模型符合球状模型,空间变异受结构因子(C)的影响占98%,受随机因子(C0)的影响占2%,确定性因素对空间异质性的影响远大于随机因素,其变异具有强烈的空间相关性。油松毛虫发生程度最大相关距离为7.98 km。每40.7 km2设1个监测样点,"品"字型均匀布设,基本能满足油松毛虫发生分布估计要求。 |
| 关 键 词： | 变异函数 油松毛虫 监测点 布点 |
Method of setting up Dendrolimus tabulaeformis situation monitoring spots based on variogram |
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| Institution: | LIU Zhaohui,et al.(Kazuo Forest Pest Management and Quarantine Station of Liaoning Province,Kazuo 122300,China) |
| Abstract: | The spacial heterogenous feature of the occurrence of D.tabulaeformis in Kazuo was studied with variogram tools.The result of variation analysis showed the theoretical model of variogram of the occurrence of D.tabulaeformis in Kazuo coincided with spherical model and the influence of structure factors(C) on the spacial variability accounted for 98% while that of random factors(C0) accounted for 2%.The influence of certainty factors on the spacial heterogeneity was greater than that of random factors.The variarion had strong spacial correlation.The maximum correlation distance of the occurrence of D.tabulaeformis was 7.98 km.Uniformly setting up one monitoring spot every 40.7 km2 in the form of a Chinese character"品" could basically meet the requirement of distribution estimation of the occurrence of D.tabulaeformis. |
| Keywords: | variogram Dendrolimus tabulaeformis monitoring spot set up |
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