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|Table of Contents|

山核桃透翅蛾幼虫空间分布型及抽样技术(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2019年03期
Page:
23-27
Column:
研究论文
publishdate:
2019-05-15

Article Info:/Info

Title:
Spatial distribution pattern and sampling technique of Sphecodoptera sheni larvae on Carya illinoinensis
Article ID:
1000-2006(2019)03-0023-05
Author(s):
LIU Kaizhou1 CAO Xia12 JU Yunwei1* ZHAI Min3 YAN Xiaoru1 WANG Xiaoshi1 ZHOU Jifeng1
1.College of Forestry, Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing Forestry University, Jiangsu Key Laboratory for Prevention and Management of Invasive Species, Nanjing 210037, China; 2.Yangzhou City Jiangdu District Forestry Station, Yangzhou 225200, China; 3.Nanjing Zhongshan Botanical Garden, Nanjing 210014, China
Keywords:
Carya illinoinensis Sphecodoptera sheni larvae spatial distribution pattern sampling technique
Classification number :
S763.7
DOI:
10.3969/j.issn.1000-2006.201804001
Document Code:
A
Abstract:
【Objective】 The purpose of the present study was to evaluate the spatial distribution pattern and sampling technique for Sphecodopter sheni larvae on Carya illinoinensis. 【Method】 Frequency distribution, six aggregation indexes(C, I, K, CA, M*/M, Iδ), Taylor power, and Iwao’s regression equation were used to analyze the spatial distribution pattern and sampling technique for S. sheni larvae on C. illinoinensis. The assembling reasons were analyzed using average aggregation size λ. 【Result】S. sheni larvae exhibited a characteristic pattern of aggregation distribution, and the aggregation intensity increased with the increasing density. The aggregation of S. sheni larvae was dependent on its own biological characteristics and environmental factors.【Conclusion】 The theoretical sampling table and sequential sampling formula of the larvae population were established, which provides a theoretical basis for the sampling investigation and helps in the prevention of the pest infestation.

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Last Update: 2019-05-15