干旱区生态环境知识资源中心(Arid): 黄土丘陵区不同土地利用方式土壤微生物功能多样性特征

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	黄土丘陵区不同土地利用方式土壤微生物功能多样性特征
其他题名	The Characteristics of Soil Microbe Function Diversity in Semi-arid Loess Hilly Region
	蔡进军; 董立国; 李生宝; 潘占兵; 许浩; 张源润
来源期刊	生态环境学报
ISSN	1674-5906
出版年	2016
卷号	25 期号:4 页码:555-562
中文摘要	土壤微生物是生态系统的重要组成部分,分析黄土丘陵区小流域不同土地利用方式土壤微生物功能多样性变化状况以及与土壤化学因子间的关系,以期为区域土壤微生物研究以及生态环境监测提供一定的参考依据。采集区域主要土地利用类型土样38份,采用生态板(Biolog-ECO)方法测定不同土地利用方式土壤微生物利用碳源的状况,利用主成分综合评价和相关系数等方法,分析不同土地利用方式土壤微生物功能多样性,以及平均吸光值、多样性指数、6类碳源和土壤化学因子的关系;结果表明:(1)土壤微生物平均吸光值随着培养时间的延长,微生物活性呈现直线增加趋势,土壤微生物功能多样性从表层到底层呈现递减趋势;(2)土壤微生物功能多样性总体趋势为林地>天然草地>耕地,苜蓿地土壤微生物功能多样性不同层次间变异大;(3)土壤全量氮、有机质、速效磷和速效氮对土壤微生物功能多样性具有显著影响。不同土地利用方式以及相同利用方式下不同措施土壤微生物功能多样性变化较大,Biolog-ECO技术可以作为生态环境监测的指标。
英文摘要	Soil microbe is an important part of terrestrial ecosystem. The objective of this paper is to elucidate the function of soil microbe diversity and its relationship with the soil environment of semi-arid Loess Hilly Region Watershed, to provide some reference for regional monitoring of soil microbial ecology. 38 types of soil sample were analyzed by eco-plates (Biolog-ECO) method, and the data for AWCD,soil microbial functional diversity and soil chemical factors were analyzed by principal component analysis(PCA) and correlation analysis. The results show that, (1) The AWCD showed a linear upward trend with incubation time, The data of 72 hours was a turning point, Soil microbial functional diversity showed decreasing trend from the surface to the bottom in area. (2) principal component analysis showed that using carbon sources were different for different land use types, and the sort were different of different soil layers of same land use types on PCA. (3) The general trend of soil microbial functional diversity showed that: Forest land > Natural grassland > Cuttivated land.(4) Correlation analysis showed that soil total nitrogen, organic matter, available P and available N have greater impact on soil microbial functional diversity. Soil microbial functional diversity as a sensitive indicator for soil qualtiy has high correlation coefficient with soil environmental factor, Larger changes with microbial functional diversity for different land uses and the same land use types.
中文关键词	土壤微生物功能多样性 ; 土地利用方式 ; 主成分分析 ; 半干旱黄土丘陵区
英文关键词	Biolog-ECO soil microbial functional diversity Biolog-ECO land use patterns principal component Semi-arid loess hilly region
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5727436
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234714
作者单位	宁夏农林科学院荒漠化治理研究所, 银川, 宁夏 750002, 中国
推荐引用方式 GB/T 7714	蔡进军,董立国,李生宝,等. 黄土丘陵区不同土地利用方式土壤微生物功能多样性特征[J],2016,25(4):555-562.
APA	蔡进军,董立国,李生宝,潘占兵,许浩,&张源润.(2016).黄土丘陵区不同土地利用方式土壤微生物功能多样性特征.生态环境学报,25(4),555-562.
MLA	蔡进军,et al."黄土丘陵区不同土地利用方式土壤微生物功能多样性特征".生态环境学报 25.4(2016):555-562.