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| 草原沙化与恢复中昆虫群落组成、营养结构及多样性变化研究 | |
| 引用本文： | 贺达汉,长有德,田真,杨云飞,杨顺堂,杨永玺,李玉平,马世瑜.草原沙化与恢复中昆虫群落组成、营养结构及多样性变化研究[J].生态学报,2001,21(1):117-125. |
| 作者姓名： | 贺达汉 长有德 田真 杨云飞 杨顺堂 杨永玺 李玉平 马世瑜 |
| 作者单位： | 1. 宁夏农学院农学系, 2. 沙坡头固沙林场, 3. 宁夏盐池县农技推广中心, |
| 基金项目： | 国家自然科学基金资助项目(39560018) |
| 摘 要： | 为了探讨草原沙化和人工固沙区植被恢复演替过程中昆虫群落组成、营养结构、多样性及稳定性的变化，在宁夏沙坡头自然保护区，利用随机和定点抽样法对上述二过程中不同地段的昆虫进行了调查。结果表明，随着沙化程度的增加和人工固沙区植被演替时间的延长，昆虫群落组成的复杂化和多样性呈现为负向和正向增加的变化趋势，但表现在群落组成结构、演替时间与方向上并不完全一致。随着沙化程度的加重，群落中天敌昆虫比率明显下降，在两个演替过程中，昆虫群落稳定性表现出下降趋势，但群落优势种的组成和不稳定机制明显不同。 |
| 关 键 词： | 草源沙化 人工固沙 昆虫群落组成 营养结构 多样性 稳定性 |
| 文章编号： | 1000-0933(2001)01-00117-09 |
| 收稿时间： | 1998/9/22 0:00:00 |
| 修稿时间： | 1999/10/9 0:00:00 |
Dynamics in composition,trophic structure and diversity of an insect community during the processes of succession and restoration |
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| HE Da Han,CHANG Youde,TIAN Zhen,YANG Yunfei,YANG Shuntang,YANG Yongxi,LI Yuping and MA Shiyu.Dynamics in composition,trophic structure and diversity of an insect community during the processes of succession and restoration[J].Acta Ecologica Sinica,2001,21(1):117-125. | |
| Authors: | HE Da Han CHANG Youde TIAN Zhen YANG Yunfei YANG Shuntang YANG Yongxi LI Yuping and MA Shiyu |
| Institution: | Department of Agronomy; Ningxia; Ningxia Agricultural College; Yongning; China |
| Abstract: | In order to explore the dynamics of insect communities in the two successional series of steppe desertification and artificial sand fixed vegetation recovery,the composition,trophic structure,diversity and stability of insect communities were studied in four respective regions with different stages of desertification and artificial sand fixed vegetation in the Shapotou Natural Reserve,Ningxia,China.It was indicated that the complexity and diversity of insect community compostition and the percentage of en... |
| Keywords: | steppe desertification artificial sand fixed community composition of insect trophic structure diversity and stabilit |
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