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- W2389061647 abstract "Landscape is an integrated earth surface unit composed of interacted landscape components such as climate, landform, hydrological condition, soil and vegetation. Vegetation is sensitive to other landscape components in a landscape and was usually employed to indicate the dynamics of other landscape components. In this paper, vegetation patterns with environmental gradients and their indication to landscape patterns and processes were studied in a typical area from middle mountainous zone of the northern slope of Tianshan Mountains, through the clayey desert at the southern edge of Jungar Basin, to the southern margin of Gurban Tonggut Sandy Desert. 10 transects were set in the study area. 43 releves of plant communities were recorded and soils at the depth of 15 cm and 45 cm for each releve were taken. TWINSPAN was adopted to distinguish plant community types and DCCA to reveal links between plant communities and habitat conditions. 10 types of plant communities were divided. Although the effects of soil salinity and water table upon vegetation in arid land have been convinced by previous work in this region, our results implied that physical composition of soils in the study area is also closely linked to various plant community types remarkably. As to the preference to fine grain, the order is concluded as H. persicum-H. ammodendron community H. ammodendron community R. soongorica community, and an opposite order for coarse grain, therefore the H. persicum-H. ammodendron community on clayey desert in the study area is regarded as an indicator of sandy desertification. R. soongorica community has higher adaptability to saline soil than H. ammodendron community, and exist in habitat of higher salinity, while halophyte community indicates soil salinization. T. ramosissima community doesn't show obvious preference to salinity or water table depth, but a quite remarkable preference to a high soil moisture content. Vegetation patterns interpreted from ETM satellite images well reflects the spatial patterns of physical composition and total salt content of soils, which further demonstrated that vegetation well indicates landscape patterns in the study area. It is inferred from this study that dynamics of two types of desertification, sandy desertification and saline desertification, can be revealed by studies on vegetation dynamics in the study area." @default.
- W2389061647 created "2016-06-24" @default.
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- W2389061647 date "2004-01-01" @default.
- W2389061647 modified "2023-09-24" @default.
- W2389061647 title "Indication of desert vegetation to landscape patterns and dynamics at the northern edge of Tianshan Mountains" @default.
- W2389061647 hasPublicationYear "2004" @default.
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