模拟灌溉农业发展对乌尔米耶湖盆地水文气候的影响

IF 2.8 4区 地球科学 Q3 METEOROLOGY & ATMOSPHERIC SCIENCES
K. Khademi Ghavni, S. Hejabi, M. Montaseri
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引用次数: 0

摘要

乌尔米耶湖是世界上最大的高盐度湖泊之一,在过去三十年里水位严重下降。为了研究灌溉农业发展对乌尔米耶湖流域水文的影响,使用了区域气候模型 RegCM 来模拟该流域在不同土地利用和土地覆盖(LULC)情景下的水文气候。研究结果表明,灌溉农业的发展增加了实际蒸散量,并影响了水和能量平衡的其他组成部分。在过去的情景下,湖泊的水权得到了充分保障。但在目前的情况下,仅能提供约 42.2% 的湖泊水权,而在未来的情况下,甚至农业部门也将面临缺水问题。如果实施乌尔米耶湖恢复计划(ULRP)战略,将农业部门的用水量减少 40%,那么在当前和未来情况下,将分别提供 59.8%和 15.3%的湖泊水权;如果采用其他解决方案(从卡尼-西卜大坝和西尔韦大坝调水),那么在当前和未来情况下,将分别提供 85.3%和 40.8%的湖泊水权。考虑到气候变化对流域水文气候条件的影响,有必要研究土地利用、土地利用变化和气候变 化对乌尔米耶湖水量平衡的综合影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Modeling the effects of irrigated agricultural development on the hydroclimate of the Lake Urmia Basin

Modeling the effects of irrigated agricultural development on the hydroclimate of the Lake Urmia Basin

Lake Urmia is one of the world’s largest hyper-saline lakes, which has faced a severe drop in water level in the last three decades. To study the effects of irrigated agriculture development on the hydrology of the Lake Urmia basin, a regional climate model, RegCM, was used to simulate the hydroclimate of the basin under different land use and land cover (LULC) scenarios. The findings demonstrated that the growth of irrigated agriculture increases actual evapotranspiration, and affects other components of water and energy balances. Under the past scenario, the lake’s water right is fully provided. But, under the current scenario, only about 42.2% of the lake’s water right is supplied, and under the future scenario, even the agricultural sector will face a water deficit. Regarding the implementation of the Urmia Lake Restoration Program (ULRP) strategy of reducing water consumption by 40% in the agricultural sector, 59.8% and 15.3% of lake’s water right is provided under current and future scenarios, respectively and if other solutions (water transfer from Kani Sib dam and Silweh dam) are used, 85.3% and 40.8% of the lake’s water right is supplied under current and future scenarios, respectively. Considering the effect of climate change on the hydroclimatic conditions of the basin, it is necessary to study the combined effects of LULC change and climate change on the water balance of Lake Urmia.

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来源期刊
Theoretical and Applied Climatology
Theoretical and Applied Climatology 地学-气象与大气科学
CiteScore
6.00
自引率
11.80%
发文量
376
审稿时长
4.3 months
期刊介绍: Theoretical and Applied Climatology covers the following topics: - climate modeling, climatic changes and climate forecasting, micro- to mesoclimate, applied meteorology as in agro- and forestmeteorology, biometeorology, building meteorology and atmospheric radiation problems as they relate to the biosphere - effects of anthropogenic and natural aerosols or gaseous trace constituents - hardware and software elements of meteorological measurements, including techniques of remote sensing
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