Plain In The Southern Region Of Tumochuan Halophytes Spatial Distribution Pattern Characteristics

This paper takes14halophyte populations in Inner Mongolia Tumochuan Plain in the southern region in June-October2010as the research object, Applicate t test of diffusion coefficient, mean crowding, clumping index, clumping index, Green index, Cassie index and negative two parameters in six evaluation indexes of spatial distribution. Vegetation cover in two different directions in the north-south and southeast-northwest of the degree of contrastion,distribution type,pattern size,pattern intensity and the population gathered reasons were studied and discussed on the pattern of population Tumochuan plain halophytes.The main results are as follows.(1) The vast majority of the pattern type in fourteen kinds of halophytes in different directions on the aggregated distribution,Halophyte Suaeda Polygonum sibiricum,Chloris virgata,dandelion,Puccinellia distans,there are several uniformly distributed.The Kalidium in the main Han village in the north-south direction and the Suaeda at the carpet Carpenter yingzi village southeast-northwest direction on random distribution.(2) Fourteen kinds of halophytes have certain polyethylene block pattern of the scale of populations in two different directions on the north-south and on the southeast-northwest direction,Most plant populations is polyethylene in block four,block eight and block sixteen have Polyethylene block,Puccinellia exist only obvious patchiness in block four,Chloris virgata only have poly block in the block eight.(3) Fourteen kinds of halophyte on the degree of aggregation arrange for Leymus,Carex,Suaeda,Kalidium,Phragmites,Nitraria,Polygonum,Reaumuria,Artemisia,Het eropappus,Limonium,Taummongolieum,Puccinellia,Chloris.(4) Mean crowding and clustered index and the Green index,clustered index and the Green Index,patchiness index and Cassie indicators were highly significant positive correlation; mean crowding and the negative two parameter in a positive correlation.