植物覆盖技术保护潮湿地区土遗址探讨

潮湿地区降雨量大,土遗址普遍风化严重,室外保护难度大,表面防风化技术还不成熟。基于土遗址表面普遍生长有茂盛植被的现象,充分发挥植物对遗址的保护作用,减少不利影响,采用植物覆盖技术保护遗址十分必要且可行。本工作通过调查植物对遗址影响和植物覆盖技术保护实践的分析,论证了植物覆盖技术的可行性,提出针对封土、墙体等不同遗址,充分考虑遗址风化程度和保存状态,选用适合植物物种实施植物覆盖技术,植物物种选择应首选当地适宜优势物种,应充分评估植物对土遗址的不利影响。研究结果表明,植物覆盖技术保护遗址十分必要且可行。

Research on the plant capping technology used to protect earthen sites in humid areas

Large amounts of rainfall in humid areas and immature technologies for conservation cause severe weathering and decay of outdoor earthen sites. On the basis of the phenomenon that plants grow naturally on the surface of earthen sites, plants can be used to conserve earthen sites and reduce the impact of open-air environment to some degree. This suggests the possibility of utilizing plant capping to conserve earthen sites. Through investigations of the influence of plants on earthen sites, this paper demonstrates the feasibility of the plant capping technology and discusses several points:types and rates of weathering of sites determines suitable plant capping technology; local dominant plant species are preferred for plant capping; adverse impact of plants should also be analyzed and evaluated before covering.