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中国沙漠  2014 

咸水滴灌林地风沙土中微生物群落代谢特征

DOI: 10.7522/j.issn.1000-694X.2013.00327

Keywords: Biolog,风沙土,碳源利用,土壤性质

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Abstract:

选择Biolog技术方法，利用方差分析和主成分分析研究了不同矿化度水滴灌下塔里木沙漠公路防护林地土壤微生物的代谢活性。结果表明：随着培养时间的推移，微生物利用单一碳源的颜色平均变化率（AWCD）呈现升高趋势。培养48h内小于0.5，处于缓慢增长期；48h后进入对数增长期；216h后进入稳定期；衰亡期不明显。随着滴灌水矿化度增大，AWCD值明显降低，这种差异主要由土壤微生物对胺类、酚类化合物、碳水化合物利用的差异所致。土壤微生物群落利用碳源活性的垂直差异明显，70~100cm土层是AWCD值最高的区域，表层0~5cm最小。AWCD值与土壤有机质、全氮、全磷、全钾、速效钾、速效磷的含量、pH值、阳离子交换量、容重的正相关系数均大于0.85。因此，土壤微生物利用碳源的代谢活性差异主要由土壤化学性质所致，土壤全量养分和酸碱度是主要驱动因子。胺类、酚类化合物、碳水化合物是区分不同矿化度水滴灌下土壤微生物群落生态功能的敏感碳源。

 References

[1]  Elsridge D J,Koen T B.Cover and floristics of microphytic soil crusts in relation to indices of landscape health[J].Plant Ecology,1998,137(1):101-114.
[2]  邵玉琴,赵吉.草原沙地微生物结皮与固沙作用的研究[J].农业环境科学学报,2004,23(1):94-97.
[3]  Zak C J,Michael R W,Daryl L M,et al.Functional diversity of microbial communities:a quantitative approach[J].Soil Biology & Biochemistry,1994,26(9):1101-1108.
[4]  雷加强,李生宇,靳正忠,等.塔里木沙漠公路防护林生态工程的综合环境效应[J].科学通报,2008,53(增刊II):190-202.
[5]  李生宇,雷加强,徐新文,等.塔里木沙漠公路影响下的地表形态变化[J].科学通报,2006,51(增刊II):101-109.
[6]  李生宇,李红忠,雷加强,等.塔克拉玛干沙漠不同立地条件下咸水滴溉苗木的生长差异[J].水土保持学报,2004,18(3):118-122.
[7]  周智彬,李培军,徐新文,等.塔克拉玛干沙漠腹地人工绿地对沙地盐分时空分布的影响[J].水土保持学报,2002,16(2):16-19.
[8]  鲁如坤.土壤农业化学分析方法[M].北京:中国农业科技出版社,2000.
[9]  Choi K,Dobbs F C.Comparison of two kinds of Biolog micro-plates (GN and ECO) in their ability to distinguish among aquatic microbial communities[J].Journal of Microbiology Methods,1999,36(3):203-213.
[10]  王强,戴九兰,吴大千,等.微生物生态研究中基于BIOLOG方法的数据分析[J].生态学报,2010,30(3):817-823.
[11]  Garland J L.Analytical approaches to the characterization of samples of microbial communities using patterns of potential C source utilization[J].Soil Biology & Biochemistry,1996,28(2):213-221.
[12]  胡可,王利宾.BIOLOG微平板技术在土壤微生态研究中的应用[J].土壤通报,2007,38(4):819-821.
[13]  郑华,欧阳志云,方治国,等.BIOLOG在土壤微生物群落功能多样性研究中的应用[J].土壤学报,2004,41(3):456-461.
[14]  区余端,苏志尧,彭桂香,等.车八岭山地常绿阔叶林冰灾后土壤微生物群落功能多样性[J].生态学报,2009,29(11):6156-6164.
[15]  郑华,陈法霖,欧阳志云,等.不同森林土壤微生物群落对Biolog-GN板碳源的利用[J].环境科学,2007,28(5):1126-1130.
[16]  张建国,徐新文,雷加强,等.咸水滴灌对沙漠公路防护林土壤环境的影响[J].农业工程学报,2008,24(10):34-39.
[17]  王晓蕾,张琇,周云锋,等.沙漠微生物群落功能多样性分析[J].水土保持通报,2012,32(3):91-95.
[18]  Calbrix R,Laval K,Barray S.Analysis of the potential functional diversity of the bacterial community in soil:a reproducible procedure using sole carbon-source utilization profiles[J].European Journal of Soil Biology,2005,41(2):11-20.
[19]  林瑞余,戎红,周军建,等.苗期化感水稻对根际土壤微生物群落及其功能多样性的影响[J].生态学报,2007,27(9):3644-3654.
[20]  陆爽,张霞,谭勇,等.栽培红花生长期土壤微生物与土壤理化因子动态[J].草业科学,2011,28(12):2084-2091.
[21]  李云,孙波,李忠佩,等.不同气候条件对旱地红壤微生物群落代谢特征的长期影响[J].土壤,2011,43(1):60-66.
[22]  Rietz D N,Haynes R J.Effects of irrigation-induced salinity and sodicity on soil microbial activity[J].Soil Biology & Biochemistry,2003,35:845-854.
[23]  Sudipta T,Sabitri K,Ashis C,et al.Microbial biomass and its activities in salt-affected coastal soils[J].Biology & Fertility of Soils,2006,42:273-277.
[24]  Jannike W,Florian W,Rainer G J.Impact of salinity on soil microbial communities and the decomposition of maize in acidic soils[J].Geoderma,2006,137:100-108.
[25]  Tripathi S,Kumari S,Chakraborty A,et al.Microbial biomass and its activities in salt-affected coastal soils[J].Biology & Fertility of Soils,2006,42:273-277.
[26]  Pankhurst C E,Yu S,Hawke B G.Capacity of fatty acid profiles and substrate utilization patterns to describe differences in soil microbial communities associated with increased salinity or alkalinity at three locations in South Australia[J].Biology & Fertility of Soils,2001,33(3):204-217.
[27]  Jonathan Z K,John A B.High incidence of halotolerant bacteria in Pacific hydrothermal-vent and pelagic environments[J].FEMS Microbiology Ecology,2000,32:249-260.
[28]  White C,Tardif J C,Adkins A,et al.Functional diversity of microbial communities in the mixed boreal plain forest of central Canada[J].Soil Biology & Biochemistry,2005,37:1359-1372.
[29]  O’Donnell A G,Seasman M,Macrae A,et al.Plants and fertilizers as drivers of change in microbial community structure and function in soils[J].Plant & Soil,2001,232(1/2):135-145.
[30]  靳正忠,雷加强,徐新文,等.流沙区不同立地条件下防护林土壤微生物多样性分析[J].中国沙漠,2011,31(6):1430-1436. 浏览
[31]  逄蕾,肖洪浪,谢忠奎,等.砂田不同覆盖方式对土壤微生物组成的影响[J].中国沙漠,2012,32(2):351-358. 浏览
[32]  靳正忠,雷加强,李生宇,等.流动沙漠腹地防护林土壤肥力质量垂直演化与评价[J].土壤学报,2010,47(6):1075-1085.

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