干旱区生态环境知识资源中心(Arid): 寡营养细菌对古尔班通古特沙漠土壤环境的影响

Arid

	寡营养细菌对古尔班通古特沙漠土壤环境的影响
其他题名	Effect of Oligotrophic Bacteria on Soil Environment in the Gurbantunggut Desert,Xinjiang,China
	邱东; 程争鸣; 张元明; 吴楠; 牟书勇; 齐晓玲; 潘惠霞
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2012
卷号	29 期号:1 页码:148-154
中文摘要	利用从古尔班通古特沙漠生物结皮中分离的1株寡营养细菌制成的菌剂,喷洒在流沙表面,分析寡营养细菌对沙漠土壤微生物、酶活性、土壤养分及生物结皮形成的影响。结果表明:①喷洒寡营养细菌菌剂,提高各层土壤主要微生物数量,其中显著(P<0.05)提高了0~2 cm土层的细菌和放线菌数量及2~5 cm层的寡营养细菌数量;②对不同土壤养分的影响有所差异,提高了土壤中全磷、全钾、有效氮和有效磷含量,但降低了有机质和全氮含量;③对不同土壤酶活性的影响也表现出一定的差异,提高了过氧化氢酶和多酚氧化酶活性,但降低了蔗糖酶和碱性磷酸酶活性。相关性分析表明,寡营养细菌与放线菌为极显著正相关,与其他因子相关性不显著。总体来讲,寡营养细菌的施加改变了土壤原有微生物和养分格局,促进了微生物和藻结皮的存在与发展。研究将为有效恢复生物结皮、修复受损沙地提供新的方法。
英文摘要	The oligotrophic bacteria isolated from the biotic crust in the Gurbantunggut Desert were made into solvent,and two spraying levels were set to compare the effects of oligotrophic bacteria on soil microorganisms,enzyme activities,soil nutrients and formation and regeneration of biotic soil crust.The results are as follows:(1) It could improve the numbers of bacteria,actinomycetes and oligotrophic bacteria at two soil layers(0-2 cm and 2-5 cm in depth) to spray the oligotrophic bacteria,and the numbers of bacteria and actinomycetes at 0-2 cm layer and of oligotrophic bacteria at 2-5 cm layer were more than that without spraying oligotrophic bacteria;(2) The effects of spraying the oligotrophic bacteria on soil nutrients were different,the contents of total P,total K,available N and available P were effectively improved,but the contents of soil organic matter and total N were decreased;(3) There were also the difference in the effects on soil enzyme activities,the catalase and polyphenol oxidase activities were increased,but the sucrase and alkaline phosphatase activities were reduced.The correlation analysis revealed that there was a significant positive correlation between oligotrophic bacteria and actinobacteria,and the correlations between oligotrophic bacteria and other factors were not so significant.Holistically,the original patterns of microorganisms and soil nutrients were changed by spraying the oligotrophic bacteria,and the oligotrophic bacteria were helpful to promote the existence and development of microorganisms and algae crust.Thus,the study results could open a new way for regenerating biotic soil crust and improving the conditions over sand land.
中文关键词	寡营养细菌 ; 土壤微生物 ; 土壤养分 ; 土壤酶活性 ; 固沙 ; 古尔班通古特沙漠
英文关键词	oligotrophic bacteria microorganism soil nutrition enzyme activity sand-fixation Gurbantunggut Desert
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:4438480
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/228022
作者单位	中国科学院新疆生态与地理研究所, 中国科学院干旱区生物地理与生物资源重点实验室, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	邱东,程争鸣,张元明,等. 寡营养细菌对古尔班通古特沙漠土壤环境的影响[J]. 中国科学院新疆生态与地理研究所,2012,29(1):148-154.
APA	邱东.,程争鸣.,张元明.,吴楠.,牟书勇.,...&潘惠霞.(2012).寡营养细菌对古尔班通古特沙漠土壤环境的影响.干旱区研究,29(1),148-154.
MLA	邱东,et al."寡营养细菌对古尔班通古特沙漠土壤环境的影响".干旱区研究 29.1(2012):148-154.