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首页> 外文期刊>Climatic Change >Modeling and analysis of the potential impacts on regional climate due to vegetation degradation over arid and semi-arid regions of China
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Modeling and analysis of the potential impacts on regional climate due to vegetation degradation over arid and semi-arid regions of China

机译：中国干旱和半干旱地区植被降解导致区域气候潜在影响的建模与分析

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Heading>Abstract/Heading>Para ID="Par1">The regional climate effects of vegetation change in arid and semi-arid regions of China, which has experienced serious grassland degradation, are investigated in this study using the Weather Research and Forecasting (WRF) regional climate model. Two long-term simulation experiments (from January 1, 1980 to March 1, 2010), one with the land cover derived from the original United States Geological Survey鈥檚 (USGS) data (denoted as CTL) and the other (denoted as SEN) with a modification of the former one by vegetation degradation in arid and semi-arid regions of China, are undertaken to investigate the influence of land cover change on regional climate over arid and semi-arid regions of China. The possible mechanisms of how land cover change affects the regional climate in arid and semi-arid regions of China are also examined. The simulation results indicate that when compared with the observation datasets, the WRF model simulates the spatial pattern of observed temperature and precipitation quite well. After vegetation degradation over the arid and semi-arid regions of China, the net radiation and evaporation are reduced mainly within the degraded areas in summer, consistent with the reduction in precipitation and the increase in 2-m air temperature (T2聽m)./Para>
机译：＆标题>抽象＆ /标题>＆ id =“par1”>使用天气调查了中国干旱和半干旱地区的植被变化的区域气候影响，经历了严重的草地退化，在这项研究中调查了天气研究与预测（WRF）区域气候模型。两项长期仿真实验（从1980年1月1日至2010年3月1日起），其中一个与原始美国地质调查鈥檚（USGS）数据（表示为CTL）的土地覆盖（表示为SEN ）通过在中国干旱和半干旱地区进行植被退化的前一个，正在进行探讨土地覆盖变化对中国干旱和半干旱地区区域气候的影响。还研究了土地变化如何影响中国干旱和半干旱地区的区域气候的可能机制。仿真结果表明，与观察数据集相比，WRF模型非常好地模拟观察到的温度和降水的空间模式。在植被降解中国的干旱和半干旱地区之后，净辐射和蒸发主要在夏季降解区域内减少，与降水降低以及2米的空气温度（T2m）的增加一致。 ＆ / para>

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