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古尔班通古特沙漠地衣结皮对放牧踩踏干扰的小尺度响应

, PP. 1032-1038

Keywords: 生物土壤结皮,放牧,干扰强度,盖度,微生物活性,古尔班通古特沙漠

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Abstract:

古尔班通古特沙漠地衣结皮对放牧踩踏干扰及其所引起的生境异质性具有重要的指示作用。研究表明①放牧踩踏干扰主要集中于结皮层(0~5cm),随机调查的样方中,90%的样方干扰率均低于30%,生物土壤结皮(BSCs)破损尚处于较安全的范围;②放牧踩踏干扰降低了BSCs总盖度,不同类型的结皮对践踏干扰的反应具差异性,其中,真菌-藻类共生形成的地衣结皮与干扰率呈极显著负相关(P30%的样方中,抗风蚀能力较强的苔藓结皮、地衣结皮盖度均显著低于未受干扰样方,地衣共生体的破坏导致真菌数量显著增加(P30%的样方中各指标均低于未受干扰样方。其中,土壤容重是对放牧干扰比较敏感的指标,与地衣结皮盖度亦呈极显著正相关(P<0.01),与流沙盖度呈显著负相关(P<0.05)。

References

[1]  Lazaro R,Canton Y,SoleBenet A,et al.The influence of competition between lichen colonization and erosion on the evolution of soil surfaces in the Tabernas badlands (SE Spain) and its landscape effects〔J〕.Geomorphology,2008,102(2):252-266.
[2]  吴楠,张元明,张静,等.生物结皮恢复过程中土壤生态因子分异特征〔J〕.中国沙漠,2007,27(3):397-404.
[3]  del Prado R,Sancho L G.Dew as a key factor for the distribution pattern of the lichen species Teloschistes lacunosus in the Tabernas Desert (Spain)〔J〕.Flora,2007,202(5):417-428.
[4]  Zhang J,Zhang Y M,Alison D,et al.The influence of biological soil crusts on dew deposition in Gurbantunggut Desert,Northwestern China〔J〕.Journal of Hydrology,2010,379:220-228.
[5]  Cooper E J,Smith F M,Wookey P A.Increased rainfall ameliorates the negative effect of trampling on the growth of High Arctic forage lichens〔J〕.Symbiosis,2001,31(1/3):153-171.
[6]  张元明,王雪芹.荒漠地表生物土壤结皮形成与演替特征概述〔J〕.生态学报,2010,30(16):4 484-4 492.
[7]  艾尼瓦尔·吐米尔,王玉良,阿不都拉·阿巴斯.新疆准噶尔盆地南缘土壤生物结皮中地衣物种组成和分布〔J〕.植物资源与环境学报,2006,15(3):35-38.
[8]  阿不都拉·阿巴斯,艾尼瓦尔·吐米尔.新疆古尔班通古特沙漠南缘土壤生物结皮中地衣植物物种组成和分布〔J〕.新疆大学学报:自然科学版,2006,23(4):379-383.
[9]  张丙昌,张元明,赵建成,等.古尔班通古特沙漠生物结皮不同发育阶段中藻类的变化〔J〕.生态学报,2009,29(1):9-17.
[10]  Wu N,Zhang Y M,Downing A.Comparative study of nitrogenase activity in different types of biological soil crusts in the Gurbantunggut Desert,Northwestern China〔J〕.Journal of Arid Environments,2009,73:828-833.
[11]  刘华杰,吴清凤,房士波,等.不同水分条件下坚韧胶衣固氮活性对冻融的响应〔J〕.菌物学报,2010,29(2):228-233.
[12]  Chen R Y,Zhang Y M,Li Y,et al.The variation of morphological features and mineralogical components of biological soil crusts in the Gurbantunggut Desert of Northwestern China〔J〕.Environmental Geology,2009,57:1 135-1 143.
[13]  王雪芹,张元明,蒋进,等.放牧对古尔班通古特沙漠南部沙垄地表性质的影响〔J〕.地理学报,2007,62(7):698-706.
[14]  张元明,陈晋,王雪芹,等.古尔班通古特沙漠生物结皮的分布特征〔J〕.地理学报,2005,60(1):53-60.
[15]  杨伟,陈晋,张元明,等.古尔班通古特沙漠1970—2000年生物结皮覆盖变化研究〔J〕.自然资源学报,2006,21(6):934-941.
[16]  和克俭,曹鑫,黄晓霞,等.新疆古尔班通古特地区的土壤结皮及其保护〔J〕.云南地理环境研究,2008,20(3):42-47.
[17]  Hiernaux P,Bielders C L,Valentin C,et al.Effects of livestock grazing on physical and chemical properties of sandy soils in Sahelian rangelands〔J〕.Journal of Arid Environments,1999,41(3):231-245.
[18]  Ponzetti J M,McCune B P.Biotic soil crusts of Orego[JP8]n’[JP]s shrub steppe: Community composition in relation to soil chemistry,climate,and livestock activity〔J〕.Bryologist,2001,104(2):212-225.
[19]  Bates S T,Nash T H,Sweat K G,et al.Fungal communities of lichendominated biological soil crusts: Diversity,relative microbial biomass,and their relationship to disturbance and crust cover〔J〕.Journal of Arid Environments,2010,74(10):1 192-1 199.
[20]  王雪芹,张元明,张伟民,等.古尔班通古特沙漠生物结皮对地表风蚀作用影响的风洞实验〔J〕.冰川冻土,2004,26(5):632-638.
[21]  吴清凤,刘华杰.火烧对内蒙古草原中坚韧胶衣固氮活性的影响〔J〕.植物生态学报,2008,32(4):908-913.
[22]  Rai H,Upreti D K,Gupta R K.Diversity and distribution of terricolous lichens as indicator of habitat heterogeneity and grazing induced trampling in a temperatealpine shrub and meadow〔J〕.Biodiversity and Conservation,2012,21(1):97-113.王雪芹,李丙文,张元明.古尔班通古特沙漠沙垄表面的稳定性与顶部流动带的形成〔J〕.中国沙漠,2003,23(2):126-131.
[23]  张立运,陈昌笃.论古尔班通古特沙漠植物多样性的一般特点〔J〕.生态学报,2002,22(11):1 923-1 932.
[24]  吴楠,梁少民,王红玲,等.动物践踏干扰对生物结皮中微生物生态分布的影响〔J〕.干旱区研究,2006,23(1):50-55.
[25]  蒋慧萍,吴楠,杨维康.大沙鼠扰动对荒漠土壤微生物数量和水肥状况的影响〔J〕.干旱区研究,2007,24(2):187-192.
[26]  李卫红,任天瑞,周智彬,等.新疆古尔班通古特沙漠生物结皮的土壤理化性质分析〔J〕.冰川冻土,2005,27(4):619-626.
[27]  Belnap J.Impacts of offroad vehicles on nitrogen cycles in biological soil crusts: Resistance in different U.S.deserts〔J〕.Journal of Arid Environments,2002,52:155-165.
[28]  程军回,张元明.影响生物土壤结皮分布的环境因子〔J〕.生态学杂志,2010,29(1):133-141.
[29]  张元明,杨维康,王雪芹,等.生物结皮影响下的土壤有机质分异特征〔J〕.生态学报,2005,25(12):3 420-3 425.
[30]  张元明,聂华丽.生物土壤结皮对准噶尔盆地5种荒漠植物幼苗生长与元素吸收的影响〔J〕.植物生态学报,2011,35(4):380-388.
[31]  刘华杰.内蒙古草原中生物土壤结皮的生态学研究〔D〕.北京:中国科学院植物研究所博士后研究工作报告,2007.
[32]  刘华杰,房世波,吴清凤.干旱持续时间对内蒙古草原中坚韧胶衣和分指地卷固氮活性的影响〔J〕.菌物学报,2009,28(6):783-789.
[33]  PorrasAlfaro A,Herrera J,Natvig D O,et al.Diversity and distribution of soil fungal communities in a semiarid grassland〔J〕.Mycologia,2011,103(1):10-21.
[34]  Wu N,Zhang Y M,Pan H X,et al.The role of nonphotosynthetic microbes in the recovery of biological soil crusts in the Gurbantunggut Desert,Northwestern China〔J〕.Arid Land Research and Management,2010,24(1):42-56.
[35]  Green L E,PorrasAlfaro A,Sinsabaugh R L.Translocation of nitrogen and carbon integrates biotic crust and grass production in desert grassland〔J〕.Journal of Ecology,2008,96(5):1 076-1 085.
[36]  Maestre F T,Bowker M A,Canton Y,et al.Ecology and functional roles of biological soil crusts in semiarid ecosystems of Spain〔J〕.Journal of Arid Environments,2011,75(12):1 282-1 291.
[37]  Langhans T M,Storm C,Schwabe A.Regeneration processes of biological soil crusts,macrocryptogams and vascular plant species after finescale disturbance in a temperate region: Recolonization or successional replacement?〔J〕.Flora,2010,205(1):46-60.

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