干旱区生态环境知识资源中心(Arid): 黑河中游绿洲化过程中不同开垦年限农田大型土壤动物群落特征

Arid

	黑河中游绿洲化过程中不同开垦年限农田大型土壤动物群落特征
其他题名	Characteristics of Soil Macrofauna Community at An Age Sequence of Cultivation in Process of Oasification in the Middle Heihe River Basin
	董炜华 1; 王子婷 2; 李锋瑞 3; 刘继亮 3
来源期刊	地理科学
ISSN	1000-0690
出版年	2014
卷号	34 期号:10 页码:1254-1261
中文摘要	对不同开垦年限绿洲农田大型土壤动物群落结构特征进行研究,探讨绿洲化过程中农田大型土壤动物群落对土壤环境演变的响应及适应机制。天然荒漠草地开垦为绿洲农田后,新垦绿洲农田大型土壤动物密度和类群丰富度增加为天然荒漠草地的1.95倍和1.54倍,百年绿洲农田土壤动物密度和类群丰富度增加为天然荒漠草地的3.54倍和3.00倍;但群落多样性和均匀度指数变化较小。不同动物类群随着绿洲农田开垦年限增加,其变化规律也存在较大差异,如地蜈蚣科(Geophilidae)、线蚓科(Enchytraeidae)、正蚓科(Lumbricidae)和蝇科幼虫(Muscidae)个体密度逐渐增加,拟步甲科(Tenebrionidae)和象甲科(Curculionidae)个体密度显著降低,而平腹蛛科(Gnaphosidae)、夜蛾科(Noctuidae)幼虫和蚁科(Formicidae)受农田开垦以及开垦年限的影响较小。RDA分析结果表明绿洲化过程中不同开垦年限绿洲农田的土壤温度、pH、土壤粘粉粒、土壤含水量、土壤有机碳和全氮的变化是导致绿洲化过程中绿洲农田大型土壤动物群落演变的主要影响因素,而随着绿洲农田开垦年限增加,土壤含盐量、土壤粗砂粒和细砂粒的变化是导致不同开垦年限绿洲农田大型土壤动物群落演变的主要影响因素。
英文摘要	Age sequence in the process of oasification changes soil conditions and affects on soil fauna community. Up to now, few research has explored soil macrofauna community composition and diversity at an age sequence of cultivation in process of oasification. We investigated the composition and diversity of soil macrofauna communities using hand sorting method in both early May, mid July and September in native sandy shrubland, 27-year and 100-year oasis farmland. The results showed age sequence of cultivation had significantly affected on density, group richness, diversity and evenness index of soil macrofauna community. The density and groups of soil macrofauna community were strongly influenced by age sequence of cultivation in contrast to the modest change of diversity and evenness index. 27-year oasis farmland supported nearly 1.95 and 1.54 times higher of density and group richness soil macrofauna community than native sandy shrubland. 100-year farmland supported nearly 3.54 and 3 times higher of density and group richness soil macrofauna community than native sandy shrubland. The density of Geophilidae, Enchytraeidae, Lumbricidae and Muscidae larvae increased with oasis farmland cultivated, but the density of Tenebrionidae and Cicindelidae distinctly decreased with oasis farmland cultivated, and the density of Gnaphosidae, Noctuidae larvae and Formicidae had no obviously changed with oasis farmland cultivated. RDA analyses showed that the distribution of soil macrofauna community between native sandy shrubland and 27-year oasis farmland was clearly affected by soil temperature, pH, soil moisture, soil silt and clay content, total nitrogen and soil organic carbon. However, soil salinity,soil coarse content, soil fine sand content were the most important factors in shaping the spatial distribution pattern of soil macrofauna community between 27-year and 100-year oasis farmland.
中文关键词	黑河中游 ; 绿洲化 ; 绿洲农田 ; 开垦年限 ; 大型土壤动物
英文关键词	middle Heihe River Basin oasification oasis farmland cultivatied age soil macrofauna
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ZOOLOGY
WOS研究方向	Zoology
CSCD记录号	CSCD:5275380
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/230909
作者单位	1.长春师范大学城市与环境科学学院, 长春, 吉林 130032, 中国; 2.甘肃省林业科学研究院, 兰州, 甘肃 730020, 中国; 3.中国科学院寒区旱区环境与工程研究所临泽内陆河流域研究站, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	董炜华,王子婷,李锋瑞,等. 黑河中游绿洲化过程中不同开垦年限农田大型土壤动物群落特征[J]. 中国科学院西北生态环境资源研究院,2014,34(10):1254-1261.
APA	董炜华,王子婷,李锋瑞,&刘继亮.(2014).黑河中游绿洲化过程中不同开垦年限农田大型土壤动物群落特征.地理科学,34(10),1254-1261.
MLA	董炜华,et al."黑河中游绿洲化过程中不同开垦年限农田大型土壤动物群落特征".地理科学 34.10(2014):1254-1261.