Studies On Soil Hydro-ecological Effectsof The Typical Plant Communities In Ebinur Lake Wetland Natural Reserve

Hydrological effects of soil is the most important part of one of the main part in hydrological effects,including the soil water storage and the water's dynamic process caused a series of environmental problems,such as land degradation,desertification, salinization and so on. It may reveal different ecological conditions of the relationship and the mechanism with plant and water. This nature reserve in the area selected for the 6 different habitats typical plant communities in the paper, taking into account human factors and soil background values, and selected agricultural land and bare land. It is investigated for field sampling and vegetation growth status in the growing season, then obtaned experiments data and processing analysis indoor.The following main conclusions are as follows:(1)The soil physical properties analyzed the typical plant communities of different ecological effects of in the hydrological effects of soil characteristics, different plant communities are not the same, but the physical properties varied in the same plant communities is same (soil properties diversification of the same plant is basically the same ranking position in the season);Through the significance test analyzed these indicators, there were no significant differences in 3 months.(2)The soil chemical properties analyzed the typical plant communities of different ecological effects of in the hydrological effects of soil characteristics in Ebinur Lake Wetland Nature Reserve. Derived soil organic matter, total nitrogen, pH and total salt in different plant communities are not the same, but the same plant community in the seasonal variation of soil properties are basically the same (the same plant on soil properties diversification of the same plant is basically the same ranking position in the season);Through the significance test with these four indicators, found that except that the soil total salt (total salt in the June with August and October was significantly correlated, but August and October there were no significant relationships) at 3 months showed a significant relationship,the other three indicators are not significantly correlated.(3)Correlations hydrological effects of the soil characteristics, they were all significantly correlated.(4)Combined with plant growth status indicators and the hydrological effects of soil characteristics indicators for interaction with the six plots of typical plant communities of the correlation analysis and site situation,show the typical plant communities formed a long-term adaptation of the results in the hydrological effects of characteristics, and these characteristics are needed for growth and development within the allowable range in all typical of communities.(5)Analyzed plant growth status indicators and the hydrological effects of soil characteristics indicators for principal component analysis with the six plots of typical plant communities.Prin1 reflect the comprehensive index by the hydrological effect of soil, shows 6 typical plant communities of hydro-ecological effects of soil affected by bulk density; Prin2 reflect the dynamic changes of soil salinity; Prin3 reflect the species diversity of typical plant communities; Prin4 reflect soil pH and vegetation growth status the six plots of typical plant communities .(6)The hydrological effects of soil with typical plant communities by using the method of entropy weight coefficient model to undertake a comprehensive evaluation in Ebinur Lake Wetland Nature Reserve: Haloxylon community > Populus euphratica community > Reaumuria soongorica community > Phragmites australis community > Tamarix ramosissima community > Halocnermum strobilaceum community.(7)Combined with the hydrological effects of soil with typical plant communities evaluation results and the actual plot of soil moisture, obtained adaptive succession following order with typical plant communities: Halocnermum strobilaceum community→Phragmites australis community→Tamarix ramosissima community→Populus euphratica community→Reaumuria soongorica community→ Haloxylon community.(8)From the soil for hydrological quantitative evaluation of ecological benefits can be seen that plots of different plant communities in ecological benefits of soil water values were quite different. Except for Haloxylon, Reaumuria soongorica, bare land, other plots on the hydrological benefits can basically reflect the economic and value, and the highest is the constructive species of Populus euphratica.