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Comparison of changes in vegetation and land cover types between Shenzhen and Bangkok
Land Degradation & Development ( IF 3.6 ) Pub Date : 2020-10-15 , DOI: 10.1002/ldr.3788
Yi Song 1, 2 , Jagannath Aryal 3, 4 , Liangcheng Tan 1, 2, 5 , Long Jin 6 , Zhihua Gao 7 , Yunqiang Wang 1, 2
Affiliation  

As important node cities in the Belt and Road region, Shenzhen and Bangkok are faced with similar environmental threats posed by the high‐speed social development process. Rapid urbanization leads to changes in vegetation growth and land cover types and then affects ecosystem services. In the current study, we used a time‐series normalized difference vegetation index dataset from 2000 to 2019 and two land cover type datasets from 2000 to 2018 to investigate and compare the spatiotemporal characteristics of the changes in vegetation and land cover types of the two cities. We found that the trend of vegetation change was mainly affected by the change in land cover types, while the interannual fluctuation of vegetation change was likely related to the extreme climate events caused by El Nino‐Southern Oscillation events. However, different urbanization strategies led to opposite vegetation change trends in Bangkok and Shenzhen after 2005. With urbanization, the vegetation coverage (Pv) of Shenzhen increased from 48% in 2000 to 62% in 2018. The total urban green spaces (except croplands) of Shenzhen have remained above 33% of the total area since 2006. However, the total urban green space in Bangkok accounted for only 8% of the total area in 2018, which was even lower than the area percentage of Shenzhen’s forests in the same year. Rapid urbanization without adequate urban green spaces caused a decreasing trend of Pv in Bangkok. Green development under the Belt and Road Initiative requires serious considerations of environmental quality and urban livability during the rapid urbanization.

中文翻译:

深圳与曼谷植被和土地覆盖类型变化比较

深圳和曼谷作为“一带一路”地区的重要节点城市,面临着社会高速发展进程带来的类似环境威胁。快速城市化导致植被生长和土地覆盖类型发生变化,进而影响生态系统服务。本研究利用2000-2019年时间序列归一化差异植被指数数据集和2000-2018年两个土地覆盖类型数据集,调查比较两市植被和土地覆盖类型变化的时空特征。 . 我们发现植被变化趋势主要受土地覆盖类型变化的影响,而植被变化的年际波动可能与厄尔尼诺-南方涛动事件引起的极端气候事件有关。然而,不同的城市化策略导致曼谷和深圳 2005 年后植被变化趋势相反。 随着城市化,深圳的植被覆盖率(Pv)从 2000 年的 48% 增加到 2018 年的 62%。 2006 年以来一直保持在总面积的 33% 以上。 然而,2018 年曼谷的城市绿地总面积仅占总面积的 8%,甚至低于同年深圳的森林面积百分比。没有足够的城市绿地的快速城市化导致曼谷 Pv 呈下降趋势。“一带一路”倡议下的绿色发展需要在快速城市化过程中认真考虑环境质量和城市宜居性。随着城市化进程的推进,深圳的植被覆盖率(Pv)从 2000 年的 48% 增加到 2018 年的 62%。自 2006 年以来,深圳城市绿地(耕地除外)总面积一直保持在 33% 以上。 2018年曼谷城市绿地仅占总面积的8%,甚至低于深圳同年的森林面积比例。没有足够的城市绿地的快速城市化导致曼谷 Pv 呈下降趋势。“一带一路”绿色发展需要在快速城市化进程中认真考虑环境质量和城市宜居性。随着城市化进程的推进,深圳的植被覆盖率(Pv)从 2000 年的 48% 增加到 2018 年的 62%。自 2006 年以来,深圳的城市绿地总面积(耕地除外)一直保持在总面积的 33% 以上。 2018年曼谷城市绿地仅占总面积的8%,甚至低于深圳同年的森林面积比例。没有足够的城市绿地的快速城市化导致曼谷 Pv 呈下降趋势。“一带一路”绿色发展需要在快速城市化进程中认真考虑环境质量和城市宜居性。2006年以来,深圳城市绿地总面积(耕地除外)占总面积的比例一直保持在33%以上。但2018年曼谷城市绿地总面积仅占总面积的8%,甚至低于深圳市同年森林面积百分比。没有足够的城市绿地的快速城市化导致曼谷 Pv 呈下降趋势。“一带一路”绿色发展需要在快速城市化进程中认真考虑环境质量和城市宜居性。2006年以来,深圳城市绿地总面积(耕地除外)占总面积的比例一直保持在33%以上。但2018年曼谷城市绿地总面积仅占总面积的8%,甚至低于深圳市同年森林面积百分比。没有足够的城市绿地的快速城市化导致曼谷 Pv 呈下降趋势。“一带一路”绿色发展需要在快速城市化进程中认真考虑环境质量和城市宜居性。
更新日期:2020-10-15
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