Arid
DOI10.1117/12.2242563
Environmental resilience of rangeland ecosystems: assessment drought indices and vegetation trends on arid and semi-arid zones of Central Asia
Aralova, Dildora1,2; Toderich, Kristina3,4; Jarihani, Ben5,6; Gafurov, Dilshod7; Gismatulina, Liliya2; Osunmadewa, Babatunde A.1; Abualgasim, Majdaldin Rahamtallah1
通讯作者Aralova, Dildora
会议名称SPIE Conference on Earth Resources and Environmental Remote Sensing/GIS Applications VII
会议日期SEP 27-29, 2016
会议地点Edinburgh, SCOTLAND
英文摘要

The Central Asian (CA) rangelands is a part of the arid and semi-arid ecological zones and spatial extent of drylands in CA (Tajikistan, Kazakhstan, Uzbekistan, Kyrgyzstan, and Turkmenistan) is vast. Projections averaged across a suite of climate models, as measured between 1950-2012 by Standardised Precipitation-Evapotranspiration Index (SPEI) estimated a progressively increasing drought risks across rangelands (Turkmenistan, Tajikistan and Uzbekistan) especially during late summer and autumn periods, another index: Potential Evapotranspiration (PET) indicated drought anomalies for Turkmenistan and partly in Uzbekistan (between 1950-2000). On this study, we have combined a several datasets of drought indices (SPIE, PET, temperature_ ToC and precipitation_ P) for better estimation of resilience/non-resilience of the ecosystems after warming the temperature in the following five countries, meanwhile, warming of climate causing of increasing rating of degradations and extension of desertification in the lowland and foothill zones of the landscape and consequently surrounding experienced of a raising balance of evapotranspiration (ET0). The study concluded, increasing drought anomalies which is closely related with raising (ET0) in the lowland and foothill zones of CA indicated on decreasing of NDVI indices with occurred sandy and loamy soils it will resulting a loss of vegetation diversity (endangered species) and raising of wind speeds in lowlands of CA, but on regional level especially towards agricultural intensification (without rotation) it indicated no changes of greenness index. It was investigated to better interpret how vegetation feedback modifies the sensitivity of drought indices associated with raising tendency of air temperature and changes of cold and hot year seasons length in the territory of CA.


英文关键词drought SPIE arid vegetation PET Central Asia ecosystem resilience
来源出版物EARTH RESOURCES AND ENVIRONMENTAL REMOTE SENSING/GIS APPLICATIONS VII
ISSN0277-786X
出版年2016
卷号10005
ISBN978-1-5106-0415-5
EISBN978-1-5106-0414-8
出版者SPIE-INT SOC OPTICAL ENGINEERING
类型Proceedings Paper
语种英语
国家Germany;Uzbekistan;U Arab Emirates;Australia
收录类别CPCI-S
WOS记录号WOS:000391483900020
WOS关键词CLIMATE-CHANGE ; PHENOLOGY ; IMPACTS ; DYNAMICS ; HISTORY ; NDVI
WOS类目Environmental Sciences ; Remote Sensing ; Optics
WOS研究方向Environmental Sciences & Ecology ; Remote Sensing ; Optics
资源类型会议论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/305768
作者单位1.Dresden Univ Technol TU Dresden, Inst Photogrammetry & Remote Sensing, Dresden, Germany;
2.Samarkand State Univ, Lab Environm Problems, Samarkand, Uzbekistan;
3.ICBA Dubai, Tashkent Off, Int Ctr Biosaline Agr, Dubai, U Arab Emirates;
4.Samarkand State Univ, Samarkand, Uzbekistan;
5.Univ Sunshine Coast, CSIRO, Sippy Downs, Qld, Australia;
6.Locked Bag 4, Maroochydore, Qld 4558, Australia;
7.Res Inst Cotton Breeding Seeding & Cultivat Agrot, Kibray, Uzbekistan
推荐引用方式
GB/T 7714
Aralova, Dildora,Toderich, Kristina,Jarihani, Ben,et al. Environmental resilience of rangeland ecosystems: assessment drought indices and vegetation trends on arid and semi-arid zones of Central Asia[C]:SPIE-INT SOC OPTICAL ENGINEERING,2016.
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