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黄巢洞过去2200年以来石笋多指标数据集(174BC~AD1810)

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国家地球系统科学数据中心2022-12-27 更新2024-03-04 收录
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https://www.geodata.cn/data/datadetails.html?dataguid=9440094&docId=6741
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在山东中部黄巢洞获取了绝对定年(大多数<0.2%)且高分辨率(降水记录的平均分辨率为25年)的石笋(HC2)碳氧同位素和微量元素记录。重建了山东省中部过去2200年以来(除AD640~1100沉积间断以外)的气候和植被变化历史。结果表明, 15世纪之前该地区植被以C3植物为主, 虽有人类活动影响, 但植被变化主要受气候控制. 然而自15世纪以来, 大规模的人类活动所带来的森林采伐和土地垦殖的加剧, 影响了山东中部山区的植被, 在16~18世纪时严重破坏、甚至完全清除了当地的森林。

High-resolution (with an average resolution of 25 years for precipitation records) and absolutely dated (most dating uncertainties < 0.2%) stalagmite (HC2) carbon, oxygen isotope and trace element records were obtained from Huangcao Cave in central Shandong Province. The climatic and vegetation change histories over the past 2200 years in central Shandong Province have been reconstructed, excluding the sedimentary hiatus between AD 640 and 1100. The results indicate that prior to the 15th century, C3 plants dominated the local vegetation; although human activities exerted certain impacts, vegetation changes were primarily controlled by climate. However, since the 15th century, intensified deforestation and land reclamation driven by large-scale human activities have altered the vegetation in the mountainous areas of central Shandong. Local forests were severely damaged and even completely cleared during the 16th to 18th centuries.
提供机构:
中国科学院地球环境研究所
创建时间:
2022-12-27
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