| 热带次生林火烧前后土壤节肢动物群落组成和分布特征的变化 |
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| 引用本文： | 杨效东,唐勇,唐建纬. 热带次生林火烧前后土壤节肢动物群落组成和分布特征的变化[J]. 生态学杂志, 2001, 20(5): 32-35 |
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| 作者姓名： | 杨效东 唐勇 唐建纬 |
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| 作者单位： | 中国科学院西双版纳热带植物园 |
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| 基金项目： | 云南省自然科学基金(1999C0021Q)和中国科学院西双版纳热带植物园蔡希陶基金资助. |
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| 摘 要： | 西双版纳山区 ,刀耕火种轮歇农业是一种以火和休闲为特征的传统农业耕作方式 ,短期种植 ( 1～3年 ) ,长期休闲 ( 6～ 8年到 2 0年以上 )的点播种植农业 ,是人类最直接与森林生态系统的相互作用 ,成为人类对热带山区生态环境适应的一种生存方式 ,具有悠久的历史[1 ] 。随人口压力的增长 ,对粮食和其他农林产品需求的增加 ,迫使土地轮歇周期的缩短和在坡度较大的地方进行耕作 ,造成土壤侵蚀、养分流失、生物多样性减少 ,加上刀耕火种的粗放性、普遍性 ,使热带森林生态系统遭到严重破坏[1 1 ] 。有关西双版纳地区刀耕火种对植被演替[9,1 4 ] 、…
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| 关 键 词： | 热带次生林火烧 土壤节肢动物群落 分布 |
| 文章编号： | 1000-4890(2001)05-0032-04 |
| 修稿时间： | 2000-10-25 |
Change on the Comositionand Distribution of Soil Arthropod Community before and afier Burning in the SecondaryForest of Xishuangbanna |
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| Abstract. Change on the Comositionand Distribution of Soil Arthropod Community before and afier Burning in the SecondaryForest of Xishuangbanna[J]. Chinese Journal of Ecology, 2001, 20(5): 32-35 |
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| Authors: | Abstract |
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| Abstract: | The effects of controlled burning of slash-and-burn agriculture on soil arthropod community of a 7-year tropical secondary forest in Xishuangbanna were studied.The results showed that groups of soil arthropod decreased 28.57%,and individuals of soil arthropod reduced 72.7% after burning.The composition of soil arthropod communities changed as well.The proportion of individuals of Acari,Collembola,Protura in the 0～15cm soil layer and Hymenoptera (ant) in burned leftover increased,and became dominant groups of soil arthropod communities after firing.The vertical structure of soil arthropod communities in secondary forest was disordered.There were much more groups and individuals of soil arthropod in soil bottom than those in soil surface after fire.The diversity of soil arthropod communities decreased after fire. |
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| Keywords: | controlled burning tropical secondary forest soil arthropod communities Xishuangbanna. |
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