| 长三角绰墩遗址新石器时期以来间歇性连续稻作证据及其成因探讨 |
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| 引用本文： | 卢佳,胡正义.长三角绰墩遗址新石器时期以来间歇性连续稻作证据及其成因探讨[J].中国科学院研究生院学报,2010,27(5):605-613. |
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| 作者姓名： | 卢佳 胡正义 |
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| 作者单位： | 中国科学院南京土壤研究所/土壤与农业可持续发展国家重点实验室,南京,210008;中国科学院研究生院,北京,100049 |
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| 基金项目： | 国家自然科学基金重点项目(40335047)资助 |
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| 摘 要： | 以绰墩遗址2个古土壤剖面(0~200cm)为对象,通过植硅体、有机碳、文化层、14C断代探讨稻作史及成因。结果表明,最大种稻强度在100~116cm(马家浜文化期),随后在75~100cm(马家浜-良渚文化期),种稻强度锐减。其原因并非土壤养分不足;6280aBP以后气候转为干冷,宜种稻的湿地演化为旱地,可能是主因。在160~100cm(马家浜文化期)、100~42cm(良渚-马桥文化期)、42~0cm(宋代-现代)存在间歇性连续稻作。
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| 关 键 词： | 水稻 古土壤 稻作历史 绰墩遗址 植硅体 营养元素 土壤有机碳 |
| 收稿时间： | 2010-02-24 |
| 修稿时间： | 2010-04-12 |
Evidence and causes of intermittent continuous rice cropping since the Neolithic age at Chuodun site in China's Yangtze River Delta |
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| LU Jia,HU Zheng-Yi.Evidence and causes of intermittent continuous rice cropping since the Neolithic age at Chuodun site in China''s Yangtze River Delta[J].Journal of the Graduate School of the Chinese Academy of Sciences,2010,27(5):605-613. |
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| Authors: | LU Jia HU Zheng-Yi |
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| Institution: | 1. State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China;
2. Graduate University, Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | Information of phytolith, SOC, cultural layers, and 14C dating in two ancient profiles (0-200cm) was used to probe the history and causes of rice cropping(RC). The results showed the highest rice cropping intensity (RCI) at 100-116cm (Majiabang) and the lowest at 75-100cm (Majiabang-Liangzhu). Nutrients deficiency was not the reason for drastic fall of RCI, but the land use change induced by climate change was. The continuous raise of RCI appeared at 160-100cm (Majiabang), 100-42cm (Liangzhu-Maqiao), and 42-0cm (Song dynasty-now) intermittently. |
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| Keywords: | rice ancient soil rice cropping history Chuodun site plant phytolith nutrient elements soil organic carbon |
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