Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1117/12.2242563 |
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 |
ISSN | 0277-786X |
出版年 | 2016 |
卷号 | 10005 |
ISBN | 978-1-5106-0415-5 |
EISBN | 978-1-5106-0414-8 |
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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