Population Dynamics of Pests-Natural Enemies and Their Correlations in Man-Made Mixed Larch Forest

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cje ›› 1992, Vol. ›› Issue (3): 59-61.

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Population Dynamics of Pests-Natural Enemies and Their Correlations in Man-Made Mixed Larch Forest

Wang Zhiming, Hu Yushan, Ning Changlin, Pi Zhongqing

Jilin Institute of Forestry, Changchun 130012

Received:1989-04-17 Revised:1989-05-15 Online:1992-06-10

Abstract

Abstract: The species, quantity and population fluctuation of pests and their natural enemies are investigated in 1988 in larch-Scot pine and larch-Amorpha mixed forests at Panshi county of Jilin province. Shannon's index H', Simpon's index Dand Piolon's index J' are used to compare the popultion diversities of pests and their natural enemies in the two types of forest. Detailed results are presented in the paper.

Key words: wheat, drought stress, drought tolerance, photosynthesis, root system

Wang Zhiming, Hu Yushan, Ning Changlin, Pi Zhongqing. Population Dynamics of Pests-Natural Enemies and Their Correlations in Man-Made Mixed Larch Forest[J]. cje, 1992, (3): 59-61.

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Population Dynamics of Pests-Natural Enemies and Their Correlations in Man-Made Mixed Larch Forest

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