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《Journal of Anhui Agricultural Sciences》 2011-26
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Soil Physical Properties of a Typical Road Ecological Zone in Qixing Lake in the Spring

WANG Wen-biao et al(Elion Resources Group,Dongsheng,Inner Mongolia 017000)  
The soil physical properties in 0-60 cm soil layer of the bare sand area and three parts of a typical road ecological zone growing different vegetations in Qixing Lake were studied.Research indicators include soil moisture content,bulk density and soil mechanical composition.The results indicated that soil moisture content increased with the increasing of soil depth,and soil moisture content are between 2%-3% in every 30 and 60 cm soil layers;the diversity of average soil moisture content between plots were not significant.Soil bulk density of the bare sand area increased with the increasing in soil depth,but there was appeared a contrary tendency in ecological zone;compared with bare sand area,average soil bulk density of the areas covered with salix sand barriers-Artemisia sphaerocephala Krasch,pure Artemisia sphaerocephala Krasch and Salix matsudana-Artemisia sphaerocephala Krasch were decreased by 4.0%,6.4%,9.0%,respectively.The percentage of fine particles(particle fraction0.1 mm) in topsoil are more than that in deepsoil;the order of four viewing areas,in terms of the average percentage of fine particles,was:Salix matsudana-Artemisia sphaerocephala Krasch area(7.67%) pure Artemisia sphaerocephala Krasch area(7.56%) salix sand barriers-Artemisia sphaerocephala Krasch area(7.11%) bare sand area(5.03%).So,the road ecological zone can provide a same level of soil moisture conditions for the germination of existing vegetations,the vegetation improved the soil bulk density and increased the percentage of fine particles significantly,especially the mixed forest of Salix matsudana and Artemisia sphaerocephala Krasch.
【Fund】: 国际科技合作计划项目(2010DFA91930)
【CateGory Index】: S152
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