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| 川西高山典型自然植被土壤动物多样性 | |
| 引用本文： | 黄旭,文维全,张健,杨万勤,刘洋,闫帮国,黄玉梅.川西高山典型自然植被土壤动物多样性[J].应用生态学报,2010,21(1):181-190. |
| 作者姓名： | 黄旭 文维全 张健 杨万勤 刘洋 闫帮国 黄玉梅 |
| 作者单位： | 1. 四川农业大学林学院长江上游林业生态工程省级重点实验室,四川雅安,625014 2. 阿坝州川西林业局,四川理县,623102 3. 四川农业大学都江堰分校,四川都江堰,611830 |
| 基金项目： | 国家"十一五"科技支撑计划项目，国家自然科学基金项目，教育部新世纪优秀人才支持计划项目 |
| 摘 要： | 为了解川西高山不同自然植被类型下土壤动物的多样性差异,于2008年8月至2009年6月对该地区代表性植被——针叶林、灌木林和草甸下的土壤动物群落进行调查.从3种植被下共捕获土壤动物48343只,隶属于7门16纲31目117科.不同植被类型的大型土壤动物优势类群差异较大,其土壤动物类群数存在显著差异(P0.05).3种植被下土壤动物个体密度与类群数的垂直分布均具有明显表聚性.针叶林苔藓层的土壤动物个体密度与类群数极显著高于凋落物层和土壤层(P0.01).不同植被下土壤动物密度-类群指数(DG)存在极显著差异(P0.01).大型土壤动物生物量在6月达到最大值.Jacard相似系数显示:受干扰草甸的土壤动物群落与其他植被相似程度最低.表明植被类型对土壤动物群落结构特征影响显著;坡向、海拔以及干扰等因素对土壤动物群落结构也有影响. |
| 关 键 词： | 高山 土壤动物 多样性 群落结构 自然植被 |
Soil faunal diversity under typical alpine vegetations in West Sichuan. |
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| Affiliation: | College of Forestry, Sichuan Agricultural University/ Sichuan Province Key Laboratory of Forestry Ecological Engineering of Upstream of the Yangtze River, Ya’an 625014, Sichuan, China|Western Sichuan Forestry Bureau, Lixian 623102, Sichuan, China|Dujiangyan Branch of Sichuan Agricultural University, Dujiangyan 611830, Sichuan, China |
| Abstract: | In order to understand the variations of soil faunal diversity under different natural alpine vegetations in West Sichuan, an investigation was made on the soil faunal communities under alpine coniferous forest, shrub, and meadow from August 2008 to June 2009. A total of 48343 individuals were collected, belonging to 7 phyla, 16 classes, 31 orders and 117 families. There was a great difference in the dominant groups of soil macro fauna, and a significant difference (P＜0.05) in the number of soil faunal groups under different vegetations. Both the individual density and the group number of soil fauna decreased obviously with increasing soil depth, and were significantly higher (P＜0.01) in moss layer than in litter layer in coniferous forest. Significant difference (P＜0.01) was also observed in the density group index among the three vegeations. The maximum biomass of soil macro fauna was found in June. Jacard indices indicated that disturbed meadow had the lowest similarity of soil faunal community with the other vegetations. It was suggested that vegetation type had significant effects on the community structure of soil fauna, while aspect, altitude, and disturbance also had definite effects. |
| Keywords: | alpine soil fauna diversity community structure natural vegetation |
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