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模糊聚类法在小翅雏蝗种群动态分析中的应用
引用本文: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,2002,13(8):1054-1056.
作者姓名:刘长仲  周淑荣  王刚  王万雄
作者单位:1. 甘肃农业大学植物保护系,兰州,730070;兰州大学干旱农业生态国家重点实验室,兰州,730000
2. 兰州大学干旱农业生态国家重点实验室,兰州,730000
基金项目:国家重点基础研究发展规划资助项目 (G2 0 0 0 0 1860 2 )
摘    要:1 引  言小翅雏蝗 (Chorthippusfallax)是我国北方草地蝗虫的优势种之一 ,主要分布在我国的内蒙古、新疆、宁夏、甘肃、青海、河北、山西、陕西等省区及国外的西伯利亚、哈萨克斯坦、蒙古等地7,8,10 ,12 ,13 ,16] .刘长仲等11] 对小翅雏蝗的生物学特性进行了研究 ,李鸿昌等9] 研究了小翅雏蝗的取食行为 ,冯光翰等1,2 ] 提出了小翅雏蝗的防治指标 ,康乐3~ 6] 、邱星辉5] 、颜忠诚等17] 研究了内蒙古典型草原小翅雏蝗的时空异质性、营养生态位以及形态特征与扩散能力之间的关系 .本文依据甘肃省夏河县甘加高山草…

关 键 词:草地  蝗虫  模糊聚类法  小翅雏蝗  种群动态分析  应用
文章编号:1001-9332(2002)08-1054-03
修稿时间:2002年4月7日

Application of fuzzy cluster in analyzing population dynamics of Chorthippus fallax
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,2002,13(8):1054-1056.
Authors:LIU Changzhong    ZHOU Shurong  WANG Gang  WANG Wanxiong
Institution:Department of Plant Protection, Gansu Agricultural University, State Key Laboratory of Arid Agroecology, Lanzhou University, Lanzhou.
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.
Keywords:Chorthippus fallax    Population dynamics  Fuzzy cluster analysis  
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