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首页> 外文期刊>Science of the total environment >Land cover and vegetation carbon stock changes in Greece: A 29-year assessment based on CORINE and Landsat land cover data
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Land cover and vegetation carbon stock changes in Greece: A 29-year assessment based on CORINE and Landsat land cover data

机译：土地覆盖和植被碳股票在希腊的变化：基于柯林斯和土地覆盖数据的29年评估

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Evaluation of carbon sequestration in various land cover types is a valuable tool for environmental policies targeting towards minimization of CO_2 emissions and climate change impacts. For the past few decades, remotely sensed information on land cover has been used as useful alternative to ground observations and has proved to be a robust tool for studying land use / land cover (LULC) changes. The present work deals with the assessment of land-cover changes in a Mediterranean country - Greece, where expected climate change impacts and desertification risk are stated to be severe. This work focused on the CORINE land cover inventory at a spatial resolution of 100 m from 1990 to 2018 and selected Landsat images at 30 m spatial resolution for 1990,2000 and 2018. Results indicated that the dominant land-cover changes in Greece over the predefined 29-year period, are related to land transformation from Non-irrigated arable land to Irrigated areas, implying an intensification of agricultural practices. Natural grasslands lose a substantial part of their areas transforming into Sderophyllus vegetation and Sparsely vegetated areas. Forests gain areas from Transitional woodland-shrub and Olive groves increase their extent indicating an overall transition to woody vegetation. Estimation of Vegetation Carbon Stocks indicated a moderate decrease in the 1990 decade followed by a significant increase up to 2012 and a slight decrease thereafter. Forests of all types are by far the most important carbon sinks. Possible implications of country's recent economic crisis were examined and results indicated that economic welfare of the country seems to favor certain land cover types such as Mixed Forests and Permanently Irrigated land, but also preservation of the Vegetation Carbon Stocks.
机译：各种陆地覆盖类型中碳封存的评价是针对旨在最小化CO_2排放和气候变化影响的环境政策的有价值的工具。在过去的几十年里，关于陆地覆盖的远程感官信息被用作地面观测的有用替代品，并证明是研究土地使用/陆地覆盖（LULC）变化的强大工具。本工作涉及地中海 - 希腊的土地覆盖变化的评估，其中预期的气候变化影响和荒漠化风险将严重。这项工作侧重于康塞陆地覆盖库存，从1990年至2018年的空间分辨率，从1990年到2018年的空间分辨率，在1990,2000和2018年的30米空间分辨率下选择了Landsat图像。结果表明，在预定义的地区的主要陆地覆盖29年期间，与非灌溉耕地到灌溉领域的土地转型有关，暗示了农业实践的强化。天然草原失去了它们的大部分地区，转化为Sderophyllus植被和稀疏的植被区域。来自过渡林地灌木和橄榄树林的森林增长地区增加了它们的范围，表明对木质植被的总体过渡。植被碳股的估计表明1990年十年中的中等减少，然后显着增加到2012年，此后略有减少。所有类型的森林都是最重要的碳汇。审查了国家最近的经济危机的可能影响，结果表明，该国的经济福利似乎有利于某些土地覆盖类型，如混合森林和永久灌溉的土地，还要保存植被碳股。

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