两种典型荒漠植被区土壤微生物量碳的季节变化及影响因素分析

摘要/Abstract

摘要： 选取干旱区准噶尔盆地南缘梭梭和柽柳两类典型荒漠植被区的4种不同地表类型（冠层下、枯枝落叶层、地衣结皮覆盖区、裸地），对其从6～10月份的土壤微生物量碳季节变化进行动态监测，并在此基础上进行了土壤微生物量碳与各影响因子之间关系的分析，旨在揭示干旱区土壤微生物量碳季节动态变化特征及其主要影响因子。结果表明：两类典型荒漠植被区的土壤微生物量碳均呈现明显的季节变化，但变化趋势并不一致。其中梭梭植被区4种地表类型下的土壤微生物量碳均在8月达到峰值；柽柳植被区冠层下土壤微生物量碳也在8月份达到最大值，但其他3种地表类型下的土壤微生物量碳却在8月降到最低值。通过土壤微生物量碳的影响因子分析表明两类不同植被区土壤微生物量碳与有机碳、全氮均为（P<0.05）正相关，此外，梭梭植被区与土壤湿度存在正相关，而柽柳植被区则与土壤总含盐量呈显著负相关，表明两类荒漠植被区土壤微生物对影响因子的响应并不完全相同。

关键词: 荒漠生态系统, 梭梭, 柽柳, 微生物量, 季节动态

Abstract: Soil microbial biomass （SMB） C and its seasonal variation have great impact on arid land carbon cycle. Although close correlation of seasonal variation of soil microbial biomass C and carbon cycle were revealed in diverse studies，the relationship in arid land have not been sufficiently studied yet，primarily due to the data poverty of long-term dynamics of soil microbial biomass C. The paper selected four different types of land surfaces，below canopy，litter，lichens，and bare soil，in two typical desert vegetation regions （Haloxylon ammodendron and Tamarix chinensis） in the southern edge of Junggar Basin in western China for revealing seasonal dynamics of soil microbial biomass C in arid lands. Seasonal variations of soil microbial biomass C and surrounding environmental factors under each land surface were monitored from June to October in 2013 for investigating their relationships. The results clearly indicated that the soil microbial biomass C in desert vegetation regions had significant seasonal fluctuations regardless of surface types. Soil microbial biomass C reached the peak point in August in Haloxylon ammodendron plot for all surface types. However，only below canopy in Tamarix chinensis plot peaked at the same time while had the lowest SMB in August for the other three land surface types. Soil microbial biomass C of both typical desert vegetation regions were significantly （P<0.05） related with soil organic matter and total nitrogen through the analysis of soil microbial mass and its impact factors. Furthermore，specific significant impact factors were also identified for different vegetation regions. SMB had a significant positive correlation with soil moisture in the Haloxylon ammodendron plot but a significant negative correlation with total salt in the Tamarix chinensis plot. Different impact factors resulted in big differences of SMB under the two vegetation cover regions. The results of the study would provide guidance to the research on the responses of SMB to the future climate under different types of vegetation cover regions and different surface types in arid land.

Key words: desert ecosystems, Haloxylon ammodendron, Tamarix chinensis, soil microbial biomass（SMB）, seasonal variation

中图分类号:

S154.31

管海英，王权，赵鑫，靳佳，张思楠. 两种典型荒漠植被区土壤微生物量碳的季节变化及影响因素分析[J]. 干旱区地理, 2015, 38(1): 67-75.

GUAN Hai-ying，WANG Quan，ZHAO Xin，JIN Jia，ZHANG Si-nan. Seasonal patterns of soil microbial biomass C and impacting factors in two typical arid desert vegetation regions[J]. , 2015, 38(1): 67-75.

参考文献

［1］ SCHIMEL D S，DAVID S. Terrestrial ecosystems and the carbon cycle［J］. Global Change Biology，1995，1（1）：77-91.

sdfsdgdg

［3］ STONE R. Have desert researchers discovered a hidden loop in the carbon cycle［J］. Science，2008，320（5882）：1409-1410.

［4］ EYAL R，DAN Y. Contribution of semi-arid forests to the climate system［J］. Science，2010，327（5964）：451-454.

［5］ WALDLE A D. Controls of temporal variability of the soil microbial biomass：A global-scale synthesis［J］. Soil Biology and Biochemistry，1998，30（13）：1627-1637.

［6］ XIE J X，LI Y，ZHAI C X，et al. CO2 absorption by alkaline soils and its implication to the global carbon cycle［J］. Environmental Geology，2009，56（5）：953-961.

［7］ LIU R，PAN L P，JENERETTE G D，et al. High efficiency in water use and carbon gain in a wet year for a desert halophyte community［J］. Agricultural and Forest Meteorology，2012，162-163：127-135．

［8］ SU Y G，WU L，ZHOU Z B，et al. Carbon flux in deserts depends on soil cover type：A case study in the Gurbantunggute Desert，No- rth China［J］. Soil Biology and Biochemistry，2013，58：332-340.

［9］ SCHLESINGERW W H，ANDREWA J A. Soil respiration and the global carbon cycle［J］. Biogeochemistry，2000，48（1）：7-20.

sfsdfsdg

［11］张丽萍，陈亚宁，李学森，等. 准噶尔盆地西北缘梭梭、假木贼、盐穗木群落土壤呼吸特征比较［J］. 干旱区地理，2009，32（2）：188-195.

［12］ KELTING D L，BURGER J A，EDWARDS G S. Estimating root respiration，microbial respiration in the rhizosphere，and root-free soil respiration in forest soils［J］. Soil Biology and Biochemistry，1998，30（7）：961-968.

［13］ HANSON P J，EDWARDS N T，GARTEN C T，et al. Separating root and soil microbial contributions to soil respiration：A review of methods and observations［J］. Biogeochemistry，2000，48（1）：115-146．

sdfsdgd

［15］胡婵娟，刘国华，吴雅琼. 土壤微生物生物量及多样性测定方法评述［J］. 生态环境学报，2011，20（6-7）：1161-1167．

［16］蒋平安，罗明，蒋永衡，等. 不同种植年限苜蓿地土壤微生物区系及商值（qMB，qCO2）［J］. 干旱区地理，2006，29（1）：115-119.

［17］ MARTENS R. Current methods for measuring microbial biomass C in soil：Potentials and limitations［J］. Biology and Fertility of Soils，1995，19（2-3）：87-99.

［18］ BROOKES P C. The use of microbial parameters in monitoring soil pollution by heavy metals［J］. Biology and Fertility of Soils，1995，19（4）：269-279.

［19］胡海清，魏书精，孙龙，等. 气候变化、火干扰与生态系统碳循环［J］. 干旱区地理，2013，36（1）：57-75.

sadsfsgf

［21］ ZHAO X，WANG Q，YOSHITAKA K. Stand-scale spatial patterns of soil microbial biomass in natural cold-temperate beech forests along an elevation gradient［J］. Soil Biology and Biochemistry，2009，41（7）：1466-1474.

［22］王少昆，赵学勇，左小安，等. 科尔沁沙质草甸土壤微生物数量的垂直分布及季节动态［J］. 干旱区地理，2009，32（4）：610-615.

［23］ FERNANDO O G，RICE C W. Microbial biomass dynamics in Tallgrass Prairie［J］. Soil Science Society of America Journal，1994，58（3）：816-823.

sdfsgf

sdgsgdfh

［26］ GRISI B，GRACE C，BROOKES P C，et al. Temperature effects on organic matter and microbial biomass dynamics in temperate and tropical soils［J］. Soil Biology and Biochemistry，1998，30（10- 11）：1309-1315.

［27］ ROSS D J. Estimation of soil microbial by a fumigation-extraction method：influence of seasons，soils and calibration with the fumigation-incubation procedure［J］. Soil Biology and Biochemistry，1990，22（3）：295-300.

sdfsgfh

［29］ ACIEGO P J C，BROOKES P C. Relationships between soil pH and microbial properties in a UK arable soil［J］. Soil Biology and Biochemistry，2008，40（7）：1856-1861.

［30］ NUNAN N，MORGAN M A，HERLIHY M. Ultraviolet absorbance （280 nm） of compounds released from soil during chloroform fumigation as an estimate of the microbial biomass［J］. Soil Biology and Biochemistry，1998，30（12）：1599-1603.

［31］ KAISER E A，MUELLER T，JOERGENSEN R G，et al. Evaluation of methods to estimate the soil microbial biomass and the relationship with soil texture and organic matter［J］. Soil Biology and Biochemistry，1992，24（7）：675-683.

sdfsdg

sdgsfg

［34］曹晓明，陈曦，王卷乐，等. 古尔班通古特沙漠南缘非灌溉条件下梭梭[（Haloxylon ammodendron）]蒸腾耗水特征［J］. 干旱区地理，2013，36（2）：292-302.

［35］王忠媛，王玉刚，谢江波，等. 盐土和碱土土壤无机CO2通量的分离［J］. 干旱区地理，2013，36（4）：655-661.

sdfsgf

［37］鲍士旦. 土壤农化分析［M］. 北京：中国农业出版社，2000：27-49，86-101.

［38］吴金水，林启美，黄巧云，等. 土壤微生物生物量测定方法及其应用［M］. 北京：气象出版社，2006：57-62.

［39］ TURNER B L，BRISTOW A W，PHILIP M H. Rapid estimation of microbial biomass in grassland soils by ultra-violet absorbance［J］.Soil Biology and Biochemistry，2001，33（7-8）：913-919.

sdfsdg

sdfsgdf

［42］ POTILA H，SARJALA T. Seasonal fluctuation in microbial biomass and activity along a natural nitrogen gradient in a drained peatland［J］. Soil Biology and Biochemistry，2004，36（7）：1047-1055.

sdfsg

sdfhfgh

sdghfg

［46］ MYERS R T，ZAK D R，WHITE D C，et al. Landscape-level patterns of microbial community composition and substrate use in upland forest ecosystems［J］. Soil Science Society of America Journal，2001，65（2）：359-367.

［47］ WARDLE D A. A comparative assessment of factors which influence microbial biomass carbon and nitrogen levels in soil［J］. Biological Reviews，1992，67（3）：321-358.

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