High Mountains Becoming Wetter While Deserts Getting Drier in Xinjiang, China since the 1980s

Climate change has been thought to drive the accelerated expansion of global drylands. However, many studies reveal that Arid Central Asia (ACA) has been warming and wetting in recent decades, representing an anomalous response to global climate change. Given that ACA is composed of complex ecosyste...

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Autores principales: Yong Zhang, Chengbang An, Luyu Liu, Yanzhen Zhang, Chao Lu, Wensheng Zhang
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Lenguaje:EN
Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/01b0f1556346467b869d48f5abb4c015
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spelling oai:doaj.org-article:01b0f1556346467b869d48f5abb4c0152021-11-25T18:09:07ZHigh Mountains Becoming Wetter While Deserts Getting Drier in Xinjiang, China since the 1980s10.3390/land101111312073-445Xhttps://doaj.org/article/01b0f1556346467b869d48f5abb4c0152021-10-01T00:00:00Zhttps://www.mdpi.com/2073-445X/10/11/1131https://doaj.org/toc/2073-445XClimate change has been thought to drive the accelerated expansion of global drylands. However, many studies reveal that Arid Central Asia (ACA) has been warming and wetting in recent decades, representing an anomalous response to global climate change. Given that ACA is composed of complex ecosystems and landforms, it is not clear whether or not this trend is uniform in this topographically heterogenous region. Here, we integrate the Google Earth Engine and ERA5-Land reanalysis data to study the trend of changes, since the 1980s, in temperature and precipitation in the Tianshan Mountains and the surrounding deserts, collectively referred to as the Tianshan and Desert Ecozone, which is in Northwest China. Our results show that only 20.4% of this area is becoming both warmer and wetter, which occurs mainly in the altitudes above 2800 m (Tianshan Ecozone). All three alpine ecosystems (coniferous forests, alpine meadow, and nival zone) in the Tianshan Ecozone exhibit similar warming and wetting trends, including of elevation-dependent wetting on the specific altitude range. In contrast, the low-lying oasis where human activities are mostly concentrated is undergoing warming and drying, which will face a greater threat of drought projected under three emissions scenarios (SSP1-2.6, SSP2-4.5, and SSP5-8.5). These results highlight the importance of considering the differences of climate change in different altitude gradients and different ecosystems when studying climate change in drylands.Yong ZhangChengbang AnLuyu LiuYanzhen ZhangChao LuWensheng ZhangMDPI AGarticleclimate changeTianshan mountainsdesertsoasesecozoneAgricultureSENLand, Vol 10, Iss 1131, p 1131 (2021)
institution DOAJ
collection DOAJ
language EN
topic climate change
Tianshan mountains
deserts
oases
ecozone
Agriculture
S
spellingShingle climate change
Tianshan mountains
deserts
oases
ecozone
Agriculture
S
Yong Zhang
Chengbang An
Luyu Liu
Yanzhen Zhang
Chao Lu
Wensheng Zhang
High Mountains Becoming Wetter While Deserts Getting Drier in Xinjiang, China since the 1980s
description Climate change has been thought to drive the accelerated expansion of global drylands. However, many studies reveal that Arid Central Asia (ACA) has been warming and wetting in recent decades, representing an anomalous response to global climate change. Given that ACA is composed of complex ecosystems and landforms, it is not clear whether or not this trend is uniform in this topographically heterogenous region. Here, we integrate the Google Earth Engine and ERA5-Land reanalysis data to study the trend of changes, since the 1980s, in temperature and precipitation in the Tianshan Mountains and the surrounding deserts, collectively referred to as the Tianshan and Desert Ecozone, which is in Northwest China. Our results show that only 20.4% of this area is becoming both warmer and wetter, which occurs mainly in the altitudes above 2800 m (Tianshan Ecozone). All three alpine ecosystems (coniferous forests, alpine meadow, and nival zone) in the Tianshan Ecozone exhibit similar warming and wetting trends, including of elevation-dependent wetting on the specific altitude range. In contrast, the low-lying oasis where human activities are mostly concentrated is undergoing warming and drying, which will face a greater threat of drought projected under three emissions scenarios (SSP1-2.6, SSP2-4.5, and SSP5-8.5). These results highlight the importance of considering the differences of climate change in different altitude gradients and different ecosystems when studying climate change in drylands.
format article
author Yong Zhang
Chengbang An
Luyu Liu
Yanzhen Zhang
Chao Lu
Wensheng Zhang
author_facet Yong Zhang
Chengbang An
Luyu Liu
Yanzhen Zhang
Chao Lu
Wensheng Zhang
author_sort Yong Zhang
title High Mountains Becoming Wetter While Deserts Getting Drier in Xinjiang, China since the 1980s
title_short High Mountains Becoming Wetter While Deserts Getting Drier in Xinjiang, China since the 1980s
title_full High Mountains Becoming Wetter While Deserts Getting Drier in Xinjiang, China since the 1980s
title_fullStr High Mountains Becoming Wetter While Deserts Getting Drier in Xinjiang, China since the 1980s
title_full_unstemmed High Mountains Becoming Wetter While Deserts Getting Drier in Xinjiang, China since the 1980s
title_sort high mountains becoming wetter while deserts getting drier in xinjiang, china since the 1980s
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/01b0f1556346467b869d48f5abb4c015
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