Dariyaboyi Desert Oasis Soil Characterist And Spatial Heterogeneity Analysis

Located in the hinterland of the Taklimakan Desert Dariyaboyi oasis is Keriya Tailis currently the only Chinese remain relatively"primitive" state of the natural oasis,with the continued exploitation of water resources in the upstream hydrologicalprocesses change,making soil physical and chemical characteristics of the area willchange accordingly.Record unique"primitive"features oasis soil background data,andto explore the relationship between the physical and chemical characteristics of thesoil and plant communities is the need to learn the desert oasis of scientific research,but also the sustainable development of oases basic needs.In this paper,self-management Dariyaboyi oasis Keriya River reaches the northernend of the oasis set up in accordance with A,B,C,D,E,F six transects,taking a total of30plots,selected soil moisture,PH value,organic matter,space nitrogen,phosphorus,total phosphorus,total potassium and soil physical and chemical properties of soilparticle composition eight indicators were analyzed soil physical and chemicalanalysis of the characteristics of these distributions,synchronize investigation byvegetation plots and analyzes the different plant communities the relationship betweenthe soil;spatial distribution analysis of the spatial characteristics of the soil,usingstatistical and geostatistical analysis of different soil samples were analyzed sampleside,from the variation of the horizontal and vertical directions on the soilcharacteristics of soil characteristics Keriya Ya Tail Hedley performed in accordancewith the law of the oasis summary,the following conclusions:1.soil moisture increments from top to bottom on the vertical distribution,are verysignificant differences in the A,B and C transects the horizontal direction,indicating agreater distance from the river bank on soil moisture content, which for understandingarid area near the basin the soil moisture content is of great practical significance.2.PH Hedley Yobo according oasis weak alkaline soil is neutral,no significantdifferences were highly significant differences in the A,B,C and F samples with horizontal and vertical directions.Quadrats low soil organic matter content is less than0.5%of all belonging to the thin sand.3.aspects of soil nutrient content is not the same party,the performance of nitrogen,high potassium content of the whole,but phosphorus and total phosphorus very pooroverall characteristics,sampling points in all these nutrients showed no big difference,more uniform distribution.4.characterized by geostatistical analysis of samples of soil properties found:nuggetfrom the point of view of soil moisture,soil moisture greatly influenced by randomfactors may be related to the operating environment or sampling methods and testsrelated to,or contact the indicator susceptible to random factors relevant;variations insoil PH value less pronounced effect on a large scale,spatial autocorrelation showedmoderate autocorrelation;changes in soil organic matter on the scale effect is obvious,spatial autocorrelation strong performance from the more extreme part of thecorrelation or autocorrelation is small;four indicators of soil nutrients,the variance ofthe ratio of the value of the base nitrogen and potassium in the structure of most ofmore than25%are moderately or strongly correlated,phosphorus and totalphosphorus majority of less than25%, indicating that autocorrelation is very small.5.spatial interpolation of soil properties,the Kriging can better reflect the macro-trends of soil characteristics,can reflect the spatial differences in soil properties;compared with the kriging method of inverse distance weighting method to generatespatial interpolation Figure at the same time reflect the trend of soil properties alsoexhibit the characteristics of the soil layers rich region.This paper studies the desert oasis of soil properties for maintaining security andstability in the oasis ecological environment and improve the ecological environmentof downstream degradation and recovery to provide a theoretical basis,completed thecontribution to the desert oasis of learning science.