模糊聚类法在小翅雏蝗种群动态分析中的应用

应用生态学报 ›› 2002, Vol. ›› Issue (8): 1054-1056.

模糊聚类法在小翅雏蝗种群动态分析中的应用

刘长仲^1,2, 周淑荣², 王刚², 王万雄²

1. 甘肃农业大学植物保护系, 兰州 730070;
2. 兰州大学干旱农业生态国家重点实验室, 兰州 730000

收稿日期:2002-04-07 修回日期:2002-05-09 出版日期:2002-08-15
通讯作者: 刘长仲,男,1962年生,硕士,教授,主要从事昆虫生态及农业昆虫学研究,已发表论文40余篇.E-mail:liuchzh@public.lz.gs.cn
基金资助:
国家重点基础研究发展规划资助项目(G2000018602)

Application of fuzzy cluster in analyzing population dynamics of Chorthippus fallax

LIU Changzhong^1,2, ZHOU Shurong², WANG Gang², WANG Wanxiong ²

1. Department of Plant Protection, Gansu Agricultural University, Lanzhou 730070;
2. State Key Laboratory of Arid Agroecology, Lanzhou University, Lanzhou 730000

Received:2002-04-07 Revised:2002-05-09 Online:2002-08-15

摘要/Abstract

Abstract: The population dynamics includes quantity dynamics,space dynamics and temporal dynamics. They are interdependent and mutually influential.Fuzzy cluster analysis was carried out with the data of mean densities,indices of patchiness and occupied plot rates of Chorthippus fallax (Zubovsky)on Ganjia High Mountain Grassland in Xiahe County,Gansu Province. The results showed that the population dynamics of this grasshopper could be divided into four distinct periods,i.e.,the initial stage of hatching and the last stage of adult,the peak stage of nymph,the initial stage of adult,and the peak stage of first nymph and the adult. The peak period of nymph was in the middle ten days to the last ten days of July. In this period,the eggs were completely hatched,the population was mainly composed of nymphs of 2 and 3 instars,and the population size was related to the numbers and harmful levels of this grasshopper in the same year.Therefore,this period was the key time for population prediction and chemical control.

Key words: Chorthippus fallax, Population dynamics, Fuzzy cluster analysis

中图分类号:

S435.4

刘长仲, 周淑荣, 王刚, 王万雄. 模糊聚类法在小翅雏蝗种群动态分析中的应用[J]. 应用生态学报, 2002, (8): 1054-1056.

LIU Changzhong, ZHOU Shurong, WANG Gang, WANG Wanxiong . Application of fuzzy cluster in analyzing population dynamics of Chorthippus fallax[J]. Chinese Journal of Applied Ecology, 2002, (8): 1054-1056.

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