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- W2754234979 abstract "We investigated the morphological characteristic of Tamarix ramosissima Nebkhas in two different habitats: the Gobi desert and the desert in the desert-oasis ecotones that locate in Jinta County,Gansu Province and Ejin Banner,Inner Mongolia Autonomous Region.Also,we quantitatively analyzed the relationships between the morphological parameters,spatial pattern and spatial heterogeneity.The results indicated that:(1)Most of Tamarix ramosissima Nebkhas are independent type and often form the Nebkhas chains along wind orientation in the desert(Ejin NE83 15′,Jinta NE53 13′).The average values of Nebkhas height,volume and plant canopy diameter in the Gobi desert are smaller than those in the desert,whereas the average values of plant height and coverage in the Gobi desert are all larger than those in the desert.The maximum values in Nebkhas height and volume,plant canopy diameter,height and coverage occur in Ejin,with the average value of 4.47 m,1133.5 m3, 534.5 m2,2.27 m and 0.47,respectively.(2)There are linear relationships between the long and short axises,and between the volume and plant canopy diameter of Nebkhas.The regression curve of Nebkhas height and area is parabolic.The regression curve of plant height and canopy diameter is parabolic in the Gobi desert or linear in the desert.(3)The Tamarix ramosissima Nebkhas show a patche distribution pattern in the Gobi desert,while they form Nebkhas chain distribution in the desert.(4)The spatial heterogeneity of Tamarix ramosissima Nebkhas is mostly derived from the variation that is caused by the non-stochastic structural reason,and the extent of spatial heterogeneity in Ejin is higher than the one in Jinta.The spatial relevance is comparatively strong in Ejin′s Gobi desert,and moderate in Ejin′s desert and Jinta′s Gobi desert.There is the possibility that the spatial heterogeneity is chiefly caused by the stochastic reason in Jinta.The spatial heterogeneity is affected by environmental factors to a great degree in Jinta.In addition,The conclusions indicated that: The adaptability mechanisms of Tamarix ramosissima Nebkhas may be the stimulative function of comparative deep sand-burial as a result of wind accumulate with high-intensity to the growth of Tamarix ramosissima Nebkhas and the feedback effect between the shrub and Nebkhas." @default.
- W2754234979 created "2017-09-25" @default.
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- W2754234979 date "2008-01-01" @default.
- W2754234979 modified "2023-09-26" @default.
- W2754234979 title "Characteristics and spatial heterogeneity of Tamarix ramosissima Nebkhas at Desert-Oasis Ecotone" @default.
- W2754234979 hasPublicationYear "2008" @default.
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