Influence of grazing on diversity of <i>Dodonaea viscosa-Heteropogonetea contortus</i> herb-shrub community

LI Kun; LI Qiao; CHEN You-qing; ZHOU Xing-yin; CHEN Yan-lin; ZHAO Pei-xian

Dec. 2007

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Article Navigation > Journal of Zhejiang A&F University > 2007 > 24(6): 769-774

LI Kun, LI Qiao, CHEN You-qing, ZHOU Xing-yin, CHEN Yan-lin, ZHAO Pei-xian. Influence of grazing on diversity of Dodonaea viscosa-Heteropogonetea contortus herb-shrub community[J]. Journal of Zhejiang A&F University, 2007, 24(6): 769-774.

Citation:

LI Kun, LI Qiao, CHEN You-qing, ZHOU Xing-yin, CHEN Yan-lin, ZHAO Pei-xian. Influence of grazing on diversity of Dodonaea viscosa-Heteropogonetea contortus herb-shrub community[J]. Journal of Zhejiang A&F University, 2007, 24(6): 769-774.

Influence of grazing on diversity of Dodonaea viscosa-Heteropogonetea contortus herb-shrub community

1. College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China;
2. Research Institute of Resources Insects, Chinese Academy of Forestry, Kunming 650224, Yunnan, China;
3. Faculty of Conservation Biology, Southwest Forestry College, Kunming 650224, Yunnan, China;
4. Forest Enterprise of Yuanmou County, Yuanmou 651300, Yunnan, China

Received Date: 2006-11-02
Rev Recd Date: 2007-03-06

Abstract

Influence of grazing on biodiversity of Dodonaea viscosa-Heteropogonetea contortus scrub and grass clump in Yuanmou Arid-hot Valley was studied with sample plot investigation and biodiversity analysis. The results showed that the most abundant vegetation species and arthropod species were in the non-disturbed scrub and grass clump. Formica fusca was the dominant species in its arthropod community. And the highest diversity index and the evenness index were found, as well the lowest predominant index. The poorest vegetation species and arthropod species were in the overgrazed scrub and grass clump. The lowest diversity index was found in its arthropod community in the shrub-grass layer. More abundant vegetation species and arthropod species were in the scrub and grass clump with certain long-term grazing. The lowest evenness index and highest predominant index were found in its arthropod community. The piercing-sucking insects were predominant in the shrub-grass layer, and Monomorium mayri was predominant in the litter-layer in the grazed clumps. The species component changed in the overgrazed clump, biodiversity in the ecosystem depressed greatly, the arthropod community was instable, and the habitat degraded. Grazing had more effect on the biodiversity of the litter-layer arthropod communities than that of in the shrub-grass layer.
- forest ecology,
- hot-dry valley,
- grazing,
- biodiversity,
- vegetation,
- arthropod communities

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References









[9]	KANG L, CHEN Y L. Grasshoppers under different grazing intensities[J]. Entomol Sinica, 2(3):265-281.
[10]	BURGER J C, REDAK R A, ALLEN E B,et al. Restoring Arthropod communities in coastal sage scrub[J]. Conserv Biol, 2003, 17:460-467.
[11]	SCHNELL M R, PIK A J, DANGERFIELD J M. Ant community succession within eucalypt plantations on used pasture and implications for taxonomic sufficiency in biomonitoring[J]. Aust Ecol, 2003, 28:553-565.

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Influence of grazing on diversity of Dodonaea viscosa-Heteropogonetea contortus herb-shrub community

1. College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China;

2. Research Institute of Resources Insects, Chinese Academy of Forestry, Kunming 650224, Yunnan, China;

3. Faculty of Conservation Biology, Southwest Forestry College, Kunming 650224, Yunnan, China;

4. Forest Enterprise of Yuanmou County, Yuanmou 651300, Yunnan, China

Received Date: 2006-11-02

Rev Recd Date: 2007-03-06

Key words:

Abstract: Influence of grazing on biodiversity of Dodonaea viscosa-Heteropogonetea contortus scrub and grass clump in Yuanmou Arid-hot Valley was studied with sample plot investigation and biodiversity analysis. The results showed that the most abundant vegetation species and arthropod species were in the non-disturbed scrub and grass clump. Formica fusca was the dominant species in its arthropod community. And the highest diversity index and the evenness index were found, as well the lowest predominant index. The poorest vegetation species and arthropod species were in the overgrazed scrub and grass clump. The lowest diversity index was found in its arthropod community in the shrub-grass layer. More abundant vegetation species and arthropod species were in the scrub and grass clump with certain long-term grazing. The lowest evenness index and highest predominant index were found in its arthropod community. The piercing-sucking insects were predominant in the shrub-grass layer, and Monomorium mayri was predominant in the litter-layer in the grazed clumps. The species component changed in the overgrazed clump, biodiversity in the ecosystem depressed greatly, the arthropod community was instable, and the habitat degraded. Grazing had more effect on the biodiversity of the litter-layer arthropod communities than that of in the shrub-grass layer.

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Influence of grazing on diversity of Dodonaea viscosa-Heteropogonetea contortus herb-shrub community

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