高级检索
马丹萌, 俞淼, 刘伟光. 2022. 大规模植被恢复对东亚气候的可能影响[J]. 气候与环境研究, 27(3): 351−367. doi: 10.3878/j.issn.1006-9585.2021.20147
引用本文: 马丹萌, 俞淼, 刘伟光. 2022. 大规模植被恢复对东亚气候的可能影响[J]. 气候与环境研究, 27(3): 351−367. doi: 10.3878/j.issn.1006-9585.2021.20147
MA Danmeng, YU Miao, LIU Weiguang. 2022. Possible Impact of Large-Scale Vegetation Restoration on the Climate in East Asia [J]. Climatic and Environmental Research (in Chinese), 27 (3): 351−367. doi: 10.3878/j.issn.1006-9585.2021.20147
Citation: MA Danmeng, YU Miao, LIU Weiguang. 2022. Possible Impact of Large-Scale Vegetation Restoration on the Climate in East Asia [J]. Climatic and Environmental Research (in Chinese), 27 (3): 351−367. doi: 10.3878/j.issn.1006-9585.2021.20147

大规模植被恢复对东亚气候的可能影响

Possible Impact of Large-Scale Vegetation Restoration on the Climate in East Asia

  • 摘要: 利用动态植被模型CLM4-CNDV、区域气候模式RegCM4.6-CLM3.5和全球气候模式CAM4探究了当前气候状态下东亚区域可能的自然植被分布以及自然植被恢复对东亚区域气候产生的可能影响。结果表明,当前气候条件下,农作物区可能分布的自然植被为:蒙古高原以北、东北、华北平原和四川盆地的部分地区为裸土;东亚东南部及蒙古高原以北地区主要为林地;四川盆地及山东半岛主要为灌木;东北地区、东南沿海和长江中下游地区主要为草地。将农作物区恢复为自然植被后将对区域气候产生显著影响。其中,东亚东部大部分地区由于植被叶面积指数增加引起的蒸散发增强,使得夏季降水增加且温度降低显著;华北、四川盆地和广东中部平原地区植被叶面积指数减小,伴随区域内夏季降水显著减少且温度升高。而蒙古高原地区的气候变化不仅受区域内植被覆盖变化影响,还可能与印度地区和我国东南部植被变化引起的大气环流调整有关,使得蒙古高原西部冬季温度降低,而其东部夏季温度升高,同时夏季降水减少显著。研究所采用的试验方案是在相对理想的情况下进行的,但其结果为进一步区分不同地区植被覆盖变化的影响提供一定的参考。

     

    Abstract: The potential distribution of natural vegetation in East Asia and the possible impact of large-scale vegetation restoration from the cropland on climate change are explored using the dynamic vegetation model CLM4-CNDV, regional climate model RegCM4.6-CLM3.5, and global climate model CAM4. Part of the cropland in the northern Mongolia Plateau, Northeast and North China plains, and Sichuan basin could be occupied by bare soil. Part of the cropland in southeastern East Asia and the northern part of the Mongolia Plateau could be covered by woodlands. The cropland in the Sichuan Basin and the Shandong Peninsula could transit to shrubs; that in northeastern China, the Southeast coast, and the middle and lower reaches of the Yangtze River could transit to grassland. The restoration of natural vegetation could make a significant impact on regional climate change. Specifically, the enhancement of evapotranspiration caused by the increase of the vegetation leaf area index in most parts of East Asia could induce a significant increase in precipitation and a decrease in summer. A significant decrease in precipitation and increase in temperature in summer is found in North China, Sichuan Basin, and Central Guangdong Plain, in which the areas’ leaf area index is simulated to decrease. The climate in Mongolia Plateau is affected by the local change of the vegetation coverage and is adjusted by atmospheric circulation, which is caused by the vegetation change in India and southeastern China. Thus, the temperature in winter is simulated to decrease in the western Mongolia Plateau, while the temperature increases in summer in the eastern part with a significant decrease of precipitation. The experimental scheme adopted in the study is carried out under relatively ideal conditions, but results provide a reference for further distinguishing the impacts of vegetation cover changes in different areas.

     

/

返回文章
返回