干旱区生态环境知识资源中心(Arid): 宁夏宁东地区沙蒿金叶甲种群动态及其影响因子

Arid

	宁夏宁东地区沙蒿金叶甲种群动态及其影响因子
其他题名	Population dynamics of Chrysolina aeruginosa in Ningdong region of Ningxia and the related influencing factors
	张大治 1; 赵娜 2; 李岳诚 2; 马艳 1; 王旭 1; 解嘉成 1; 马成丽 1; 陈红彬 1
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2014
卷号	33 期号:2 页码:346-351
中文摘要	沙蒿金叶甲是沙蒿的主要害虫之一,近年来在我国西北荒漠地区危害严重,导致大量沙蒿死亡。本文在宁夏宁东地区荒漠景观中选择了生长在荒漠草原沙壤土质丘陵地、流动半流动沙丘地、人工固定沙丘地3个以沙蒿为主要建群种的样地,调查了沙蒿金叶甲的种群数量动态及其垂直分布规律。结果显示,沙蒿金叶甲在3类生境中的平均虫口密度分别为10.54、11.55和8.53只?丛~(-1),有虫株率分别为81.54%、85.15%和85.92%,3个样地中沙蒿金叶甲种群数量差异不显著。沙蒿金叶甲种群在3个样地中的发生均呈单峰型,在7月下旬至8月中旬种群数量最大。沙蒿金叶甲在沙蒿上的垂直空间分布主要集中在中、上段(40~70 cm),在不同株高段的虫口密度与其分布高度间存在极显著的相关性。相关分析显示,沙蒿金叶甲种群数量变动与沙蒿地径、新梢长度、海拔等因子密切相关;主成分分析及灰色关联分析显示,沙蒿金叶甲种群数量变动与平均气温呈正相关,在一定范围内平均气温升高有利于其种群数量的增长。
英文摘要	Chrysolina aeruginosa(Coleoptera, Chrysomelidae) is one of main pests of Artemisia ordosica. In recent years, this phytophagous beetle has spread rapidly throughout Northwest China, which has led to mass mortalities of A. ordosica. This pest has produced great damage to the local ecology. Three habitats of A. ordosica(silty-loam hilly land, mobile and semi-mobile sandy land, and manually-fixed sandy land) in Ningdong region of Ningxia were selected as study sites to investigate the population dynamics and vertical distribution of C. aeruginosa. The results showed that the average population densities of C. aeruginosa in three habitats were 10.54, 11.55 and 8.53 individuals pear clump, respectively. The victimization rates of A. ordosica were 81.54%, 85.15% and 85.92%, respectively, but the population of C. aeruginosa had not sig-nificant difference in three habitats. All population curves showed a single peak and the largest population occurred in late July to mid-August in 2012 in the three habitats. The vertical distribution of C. aeruginosa was mainly in the canopy layer and middle layer (40-70 cm). There was a highly significant correlation between the population density of C. aeruginosa and its vertical distribution in different height ranges of A. ordosica. Correlation analysis showed that the population dynamics of C. aeruginosa were closely related to diameter and burgeon length of A. ordosica and the altitude. Based on principal component analysis and gray correlation analysis, population dynamics of C. aeruginosa was positively correlated with the mean temperature and increasing temperature could promote its population growth within a certain range.
中文关键词	沙蒿金叶甲 ; 种群动态 ; 垂直分布 ; 环境因子 ; 荒漠景观
英文关键词	Chrysolina aeruginosa population dynamics vertical distribution environmental factors desert landscape
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENTOMOLOGY
WOS研究方向	Entomology
CSCD记录号	CSCD:5050359
来源机构	宁夏大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231638
作者单位	1.宁夏大学生命科学学院, 银川, 宁夏 750021, 中国; 2.宁夏大学农学院, 银川, 宁夏 750021, 中国
推荐引用方式 GB/T 7714	张大治,赵娜,李岳诚,等. 宁夏宁东地区沙蒿金叶甲种群动态及其影响因子[J]. 宁夏大学,2014,33(2):346-351.
APA	张大治.,赵娜.,李岳诚.,马艳.,王旭.,...&陈红彬.(2014).宁夏宁东地区沙蒿金叶甲种群动态及其影响因子.生态学杂志,33(2),346-351.
MLA	张大治,et al."宁夏宁东地区沙蒿金叶甲种群动态及其影响因子".生态学杂志 33.2(2014):346-351.