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[1]YANG Lei,XIONG Heigang.Characteristic of Vegetation of Different Grassland Types in Altay Prefecture[J].Research of Soil and Water Conservation,2018,25(06):152-159.

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Characteristic of Vegetation of Different Grassland Types in Altay Prefecture

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 25 Number of periods: 2018 06 Page number: 152-159 Column: Public date: 2018-10-26

Title:: Characteristic of Vegetation of Different Grassland Types in Altay Prefecture

Author(s):: YANG Lei^1,2,4, XIONG Heigang³; 1. College of Resource and Environment Sciences, Xinjiang University, Urumqi 830046, China;
2. School of Management, Xinjiang Agricultural University, Urumqi 830052, China;
3. College of Arts and Science, Beijing Union University, Beijing 100083, China;
4. Key Laboratory of Oasis Ecology, Ministry of Education, Xinjiang University, Urumqi 830046, China

Keywords:: Altay region; different grassland types; vegetation factors; biomass

CLC:: S812;TP79

DOI:: -

Abstract:: Natural grassland is one of the main material bases for livestock production in the Altay prefecture of Xinjiang and the largest ecological barrier in Altay prefecture. To find out the characteristics of vegetation of different grassland types and to show the distribution of grassland biomass in space in the Altay prefecture in the form of remote sensing images, based on the data of grass biomass and other vegetation factor from 162 sampling sites and 365 quadrats of the Altay prefecture, we analyzed the altitude, vegetation composition, height, coverage and biomass of different grassland types in Altay prefecture. At the same time, we made the biomass distribution map of 2014. The results showed that: (1) the elevations of different grassland types decreased in the order: alpine meadow > upland meadow > temperate meadow steppe > temperate steppe > temperate desert steppe > temperate steppe desert > temperate desert > swamp > low plain meadow; (2) the vegetation coverage decreased in the order: swamp > low plain meadow > upland meadow > alpine meadow > temperate meadow steppe > temperate desert steppe > temperate steppe > temperate desert > temperate steppe desert; (3) the biomass decreased in the order: swamp > low plain meadow > temperate meadow steppe > upland meadow > temperate desert steppe > temperate steppe > alpine meadow > temperate steppe desert > temperate desert; (4) the height of the vegetation decreased in the order: swamp > low plain meadow > temperate meadow steppe > upland meadow > temperate steppe > temperate steppe desert > temperate desert steppe > alpine meadow > temperate desert; (5) the relationship between the measured biomass and the normalized vegetation index NDVI can be simulated by power functions: y=7695.807x^1.327(R²=0.421, p < 0.05); (6) the distribution characteristics of the Altay grassland biomass in space increased from south to north. According to the administrative divisions, low biomass level of the ground vegetation distributed in the south of the counties of Fuhai, Fuyun and Qinhe, the more the vegetation is close to the desert of Gurbantunggut, the lower the biomass is.

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