典型文献
Ability of soil bacterial composition as an indicator of levels of soil erosion in a badland
文献摘要：
Calanchi(plural of calanco)are typical Italian badlands created by a combination of morphogenetic processes(rill and interrill erosion,gullying,piping,and mass movements)mainly originated by the effect of water.Calanchi are characterized by the sparse and patchy distribution of vegetation,and,in interplant areas,the soil surface is colonized by an association of organisms known as biological soil crust(BSC).A morphometric analysis of 45 basins in the studied calanchi area,based on a high-resolution digital elevation model,showed those basins are sediment removal systems characterized by rapid and relevant erosion processes.The goal of the current research is to evaluate the bacterial composition of BSC and to recognize its signature of land degradation processes in soil samples by a microbiological analysis(culture-dependent and culture-independent approaches).Soil bacterial distribution was investigated by a culture-independent approach,applying Illumina technology in soils with different vegetation cover.Four species were detected in site A(bare soil).In sites B(sparse vegetation)and C(densely vegetated soil)19 and 18 bacterial taxa were detected,respectively.Sites B and C were char-acterized by 17 species in common.The microbial communities detected at sites B and C are typical of environments unable to support vegetation and microorganisms that are not specialized to live in these environments.Biodiversity analysis of the bacterial communities of biocrusts,done using richness and evenness indices,confirmed that the composition of the BSC communities can be a signature of the intensity of soil erosion processes.
文献关键词：
中图分类号：
作者姓名：
Gaetano Guida;Vincenzo Palmeri;Luca Settanni;Raimondo Gaglio;Marco Tolone;Vito Ferro
作者机构：
Department of Agricultural,Food and Forest Sciences,University of Palermo,Viale delle Scienze,Building 4,90128 Palermo,Italy
文献出处：
引用格式：
[1]Gaetano Guida;Vincenzo Palmeri;Luca Settanni;Raimondo Gaglio;Marco Tolone;Vito Ferro-.Ability of soil bacterial composition as an indicator of levels of soil erosion in a badland)[J].国际泥沙研究（英文版）,2022(04):493-504
A类：
badland,Calanchi,calanco,badlands,gullying,calanchi,biocrusts
B类：
Ability,bacterial,composition,indicator,levels,erosion,plural,typical,Italian,created,by,combination,morphogenetic,processes,interrill,piping,mass,movements,mainly,originated,effect,water,characterized,sparse,patchy,distribution,vegetation,interplant,areas,surface,colonized,association,known,BSC,morphometric,analysis,basins,studied,high,resolution,digital,elevation,model,showed,those,sediment,removal,systems,rapid,relevant,goal,current,research,evaluate,recognize,its,signature,degradation,samples,microbiological,culture,independent,approaches,Soil,was,investigated,applying,Illumina,technology,soils,different,cover,Four,species,were,detected,bare,In,sites,densely,vegetated,taxa,respectively,Sites,common,microbial,communities,environments,unable,support,microorganisms,that,not,specialized,live,these,Biodiversity,done,using,richness,evenness,indices,confirmed,can,be,intensity
AB值：
0.499258
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
