Scholarlink

Background and Aims <p>Upland rice is a distinct ecotype of rice that does not require irrigation and is widely distributed in subtropical hilly areas. Research on the origin and dispersal routes of upland rice is limited; identifying their remains in archaeological sites can provide this critical information.</p> Methods <p>In this study, analysis of phytolith morphotypes and assemblages, including the ratio of sensitive to fixed morphotypes and fish-scale decorations on rice bulliforms, was performed on 66 upland rice fields in southern China.</p> Results <p>Surface soil phytolith assemblages of upland rice fields were mainly composed of BILOBATE (37.1% ± 6.3%), SMOOTH ELONGATE (23.6% ± 4.7%), SADDLE (12.8% ± 4.1%) and BULLIFORM phytoliths (10.8% ± 3.7%), differing significantly from assemblages found in lowland rice and wild rice soils. The ratio of soil moisture sensitive to fixed phytolith types, which reflects wet-dry environmental changes, was 0.47 ± 0.16, lower than found in lowland rice fields and wild rice soils. The proportion of rice bulliform phytoliths with ≥ 9 fish-scale decorations was 23.7% ± 6.8% in upland rice fields, lower than in lowland rice fields (57.6 ± 8.7%), but slightly higher than in wild rice soils (17.5 ± 8.3%).</p> Conclusion <p>The findings highlight the potential of using variations in the number of fish-scale decorations on rice bulliform phytoliths, along with phytolith assemblage composition, to distinguish between upland rice and lowland rice in southern China. Future work should focus on rice cultivation practices at archaeological sites to validate the reliability of phytoliths as a tool for identifying ecotypes of rice.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Surface soil phytoliths of upland rice fields in southern China

  • 期刊论文

  • 发表日期：

    2025年12月22日

查看全文
  • Xinxin Zuo,
  • Ying Zhou,
  • Peng Xu,
  • Guizhou Liu,
  • Liting Chen,
  • Yingjun Lin,
  • Lin Ren,
  • Hui Xie,
  • Xiujia Huan

摘要

Background and Aims

Upland rice is a distinct ecotype of rice that does not require irrigation and is widely distributed in subtropical hilly areas. Research on the origin and dispersal routes of upland rice is limited; identifying their remains in archaeological sites can provide this critical information.

Methods

In this study, analysis of phytolith morphotypes and assemblages, including the ratio of sensitive to fixed morphotypes and fish-scale decorations on rice bulliforms, was performed on 66 upland rice fields in southern China.

Results

Surface soil phytolith assemblages of upland rice fields were mainly composed of BILOBATE (37.1% ± 6.3%), SMOOTH ELONGATE (23.6% ± 4.7%), SADDLE (12.8% ± 4.1%) and BULLIFORM phytoliths (10.8% ± 3.7%), differing significantly from assemblages found in lowland rice and wild rice soils. The ratio of soil moisture sensitive to fixed phytolith types, which reflects wet-dry environmental changes, was 0.47 ± 0.16, lower than found in lowland rice fields and wild rice soils. The proportion of rice bulliform phytoliths with ≥ 9 fish-scale decorations was 23.7% ± 6.8% in upland rice fields, lower than in lowland rice fields (57.6 ± 8.7%), but slightly higher than in wild rice soils (17.5 ± 8.3%).

Conclusion

The findings highlight the potential of using variations in the number of fish-scale decorations on rice bulliform phytoliths, along with phytolith assemblage composition, to distinguish between upland rice and lowland rice in southern China. Future work should focus on rice cultivation practices at archaeological sites to validate the reliability of phytoliths as a tool for identifying ecotypes of rice.