| 德阳市3种林草模式下土壤动物群落特征 |
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| 引用本文： | 吴韬,冯茂松,韩东苗,李文兵,铁烈华.德阳市3种林草模式下土壤动物群落特征[J].草业科学,2016,33(3):495-502. |
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| 作者姓名： | 吴韬 冯茂松 韩东苗 李文兵 铁烈华 |
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| 作者单位： | 四川农业大学林学院,四川 成都,610000;四川农业大学林学院,四川 成都,610000;四川农业大学林学院,四川 成都,610000;四川农业大学林学院,四川 成都,610000;四川农业大学林学院,四川 成都,610000 |
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| 基金项目： | 国家科技支撑计划“长江上游低山丘陵区生态综合整治技术与示范”(2011BAC09B05)，“水土保持与荒漠化防治”四川省高等学校重点实验室建设项目 |
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| 摘 要： | 为了解林草模式下土壤动物组成及群落结构特征,以核桃(Juglans regia)+紫花苜蓿(Medicago sativa)、核桃+菊苣(Cichorium intybus)及核桃+鸭茅(Dactylis glomerata)3种模式为研究对象,同时以纯核桃林模式作为对照进行土壤动物调查。结果表明,1)调查共获土壤动物303只,分属3门7纲17目,优势类群为线虫纲(Nematoda)、膜翅目(Hymenoptera)、蜱螨目(Acarina);2)林草模式下土壤动物表聚性明显,纯林模式下土壤动物个体密度土层分布表现为5-10cm10-15cm0-5cm;3)核桃+苜蓿模式下Shannon-Wiener多样性指数和密度-类群指数(DG)最高,纯林模式下密度-类群指数(DG)最低,但Pielou均匀度指数最高;4)核桃+苜蓿模式下虽然土壤动物个体数明显高于纯林模式,但在类群种类上却与纯林模式最为相似;5)4种模式中,核桃+苜蓿模式腐食性(Saprozoic)土壤动物种团比例最高。综合而言,3种林草模式均能有效增长土壤动物群落组成,尤其以核桃+苜蓿模式土壤动物群落丰富程度最高。
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| 关 键 词： | 林草模式 土壤动物 群落结构 同功能种团 |
The characteristics of soil fauna communities in three forest-grass patterns in Deyang,China |
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| Wu Tao,Feng Mao-song,Han Dong-miao,Li Wen-bing,Tie Lie-hua.The characteristics of soil fauna communities in three forest-grass patterns in Deyang,China[J].Pratacultural Science,2016,33(3):495-502. |
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| Authors: | Wu Tao Feng Mao-song Han Dong-miao Li Wen-bing Tie Lie-hua |
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| Abstract: | This study was conducted to study the composition and community structure of soil fauna in three types of forest-grass patterns (J uglans regia +Medicago sativa ,Cichorium intybus and Dactylis glomerata ), and a pure Juglans woodland was applied as a control group in Deyang,Sichuan Province.The results showed that,A total of 303 specimens of soil faunas was found in this study,which were belonged to 3 phylum,7 clas-ses and 17 orders.Of those,Nematoda,Hymenoptera and Acarina were the dominant groups.The soil fauna was found to gather on the surface of earth in three types of forest-grass pattern,while the order of soil fauna density was 5 — 10 cm > 10 — 15 cm > 0 — 5 cm.In addition,the diversity of Shannon-Wiener index and DG (Density-groups)index of soil fauna was the highest in the J .regia +M .sativa pattern while the lowest DG index in pure woodland that possessed the highest Pielou index;The J .regia +M .sativa pattern has a signifi-cant difference to the pure woodland pattern in individual number of soil fauna,but on the area of species of groups are similar to the pure woodland pattern,and it had a highest proportion of Saprozoic fauna in four pat-terns.In summary,the three forest-grass patterns can enrich the composition of soil fauna communities,and highest abundant soil fauna was observed in J .regia +M .sativa pattern. |
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| Keywords: | forest-grass pattern soil fauna community structure functional guilds |
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