Title: Plant Diversity Change with Different Land Use Type and Land Use Intensity:Take Zheng Xiang Bai Banner as Case Study
Abstract:LUCC and the intensity is one of the main factors affecting change in plant diversity of grassland communities.Abundant recearch have promulgated that with the global climate change and human activiti...LUCC and the intensity is one of the main factors affecting change in plant diversity of grassland communities.Abundant recearch have promulgated that with the global climate change and human activities,the biodiversity has greatly influenced.The phenophase,behavior,distribution and the relationship between richness,population size and constracton of ecosystem have changed in different degree.As a important part of the terrestrial ecosystems,grassland ecosystem has been always the hot spot in different research field.In recent years,the study of plant diversity has got more and more scholars'attentions.So we choose the Zheng Xiang Bai Banner,the area of typical steppe and also is a typical region of Algriculture and pasture region,as the study area,to reveal the grassland plant diversity'distrbution of grazing land in different intesity and the ecologycal engineering area.By means of field survey and then combing to the LUCC data set,we study the grassland plant biodiversity's change with the LUCC and intensity's change in the agriculture and pasture region.The four key findings are as follows:First,the species numbers are reducing with the enhance of the land use intensity.Poaceae and frobs show the trend of first decrease then increase and decrease again.Composite plants show a trend of persisting declination.Leguminosae plants are first increasing and then decreasing.In the area of ecology construction,the both of total species number andαdiversity of plat communities is the lowest.Second,the importants value of species change with the different LUCC and the intensity.In the background sample,the leymus chinensis and Stipa krylovii have the highest value,but keep dropping with the strengthening of land use intensity.Concomitant species of the communities and the frobs'important value are increasing.While in the ecology construction area,the important value of eymus chinensis is the highest.Third,the samples of slightly and moderate used land have the highestαdiversity of plat communities,that of background sample is the second,and severe sample'sαdiversity value is the lowest.In the sample of ecology construction area,theαdiversity is between the slightly,moderate used and background samples.Fourth,the similar index of plant community construction between slightly used and moderate used samples is the highest,that shows that there is no clear boundary between them.And that between ecology constriction sample and background sample is also high,this means that the Ecological protection engineering has made some progress.Read More
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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Cited By Count: 1
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