Title: Impacts of vegetation patterns on feeding values of desert grassland in Gurbantunggut Desert
Abstract: The paper reports the results of investigation and analyses to vegetation patterns,micro-terrain and soil physical-chemical properties in Gurbantunggut Desert.Vegetation and soil data were collected along north-south transects in the area 44°14′04″-45°41′52″N and 87°37′09″-88°24′04″E.With Canonical Correspondence Analysis(CCA) ordination and other statistics methods,the paper discussed the spatial variations of the plant community structures,affected by habitats of terrain and soil physical-chemical properties,in the desert.In the north of the desert,the species of herbaceous plants are richer and their covers are higher,and Stipa glareosa,Ceratoides lateens,Schismus arabicus,and Anabasis brevifolia are developed.In the mid-south of the desert,Salsola collina,Artemisia arenaria,Seriphidium terrae-albae,Erodium oxyrrhynchum,Eremopyrum orientale,Haloxylon ammodendron and Reaumuria soongorica are characteristic with diverse species of trees and shrubs.Haloxylon persicum,Calligonum leucocladum,Ephedra distachya,Carex physodes,Alyssum linifolium and Ceratocarpus arenarius are generally widespread species in the desert steppe.Based on the above results,the paper compared the nutrition composition and palatability of the correlative species in every plant community of different regional sections and found that the good grazing plants are developed on the northern steppification desert grassland of the desert and have good feeding values.The integrated level of palatability and nutrition for the grazing plants in the mid-southern desert grassland of the desert is slightly lower than that in the north,and then an un-substitutive action in winter makes them have important value for grazing forage.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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