Study on Relationship Between the Distributions of Calligonum mongolicum Communities and Soft Physical and Chemical Properties in the Edge of Minqin Oasis
In the background of global climate and land use change,understanding of the relationship between vegetation and soil environment timely is useful to predict the succession change of vegetation communities.Based on field survey and laboratory analysis,the relationship between C.mongolicum communities' spatial distribution and soil physical and chemical properties in the edge of Minqin Oasis was studied with the methods of traditional statistical and redundancy analysis (RDA).The results showed that there were only 14 plant species which belonged to 7 families and 14 genera in the study area.The species composition and structure of C.mongolicum communities were poor and simple.Water and nutrient condition of C.mongolicum communities was poor,mainly was coarsening and weakly alkaline sandy soil.The RDA results showed that pH and EC had significant influence on the distribution of C.mongolicum communities.As an important sand-fixation afforestation variety,the author suggested that soil salinity should be given more consideration when choosing planting site.
Minqin OasisCalligonum mongolicumsoil physical and chemical propertiesredundancy analysis
NETL
NSTL
万方数据
维普
