The Response Of Major Plant Communities To Water Factor In Wetlands Of Beijing

The plant community styles in Beijing are luxuriant, including 2 groups of vegetation type, 5 vegetation types, 18 formations and 78 community types.The theory emphasize particularly on plant species, community type, α diversity, biomass, vegetation fraction, life-form and so on. We go to the location in the investigation with using CPS when we are investigating, which it can insure the veracity of location for investigation time after time. The plant community styles in Ye-ya-hu lake wetland consist of 8 hydrophyte communities, 10 wet enduring plant communities and 3 halophyte communities.Based on the investigation and menstruation results, the effect of soil moisture absence on wetland vegetation can be described with the spatial pattern diversity, the community composition show the trend that the hygrophyte and helophyte gradually reduce, and the mesophyte and halophyte inhabit. The adaptability of natural wetland vegetation to environment is corresponding to the physical and chemical indices of soil moisture and salt. These indices would influence the distribution, composition and succession of plant community.Some conclusions have drawn: the Ye-ya-hu Lake Wetland substrate show the search succession for the over exploitation of groundwater. Shallow groundwater, acting as a leading factor, determines the distribution and formation of regional hydromorphic, hemi-hydromorphic soil. Madid soil, saline madid soil, paludine madid soil, and meadow swampy soil would take on multiple distributions.Otherwise , we have evaluated wetland diversity of life that it can offer science facts for inspecting, protecting , resuming and persistent using diversity of life. At the same time, it also offer science facts for wetland subarea, protection, programming and resuming degenerative wetland.