基于DEM的遗址域定量算法及可获取耕地统计

发布时间：2018-12-09 21:15

【摘要】：西方学者提出的"遗址域"概念架起了从遗址内物质遗存分析到遗址外自然环境分析的桥梁。遗址域界定是后期自然环境分析的重要前提,引起了国内学者的广泛关注,但目前的工作尚未提出定量方法来计算不同地貌环境下的遗址域。以高分辨率DEM和相关学者总结的4种步行速度函数为基础,利用ArcGIS的成本距离工具和栅格计算功能生成了地形因素影响下的2h步行遗址域,并进一步讨论了4种算法的数值分布特征。其中较为合理的算法被应用于官亭盆地的3个典型遗址,以统计不同地貌单元的遗址在步行范围内的宜耕土地供给状况。最后,对遗址域分析的现存问题和未来发展,提出了认识和展望。
[Abstract]:The concept of "site domain" put forward by western scholars has built a bridge from the analysis of the material remains inside the site to the analysis of the natural environment outside the site. The definition of site domain is an important premise of natural environment analysis in the later period, which has attracted extensive attention of domestic scholars. However, the present work has not yet proposed a quantitative method to calculate the site area under different geomorphological environment. Based on the high resolution DEM and four kinds of walking speed functions summarized by relevant scholars, the 2-hour walking site area under the influence of terrain factors was generated by using the cost distance tool and grid computing function of ArcGIS. Furthermore, the numerical distribution characteristics of the four algorithms are discussed. The more reasonable algorithm is applied to three typical sites in Guanting Basin to calculate the supply of arable land within walking range for the sites of different geomorphologic units. Finally, the existing problems and future development of site analysis are discussed.
【作者单位】：华侨大学建筑学院;
【基金】：国家自然科学基金项目“河湟谷地水土资源配置模式与史前人类生业活动的相关性研究”(41401224) 华侨大学中青年教师科研提升资助计划“无人机航测技术支持下的旧城更新与聚落形态研究”(ZQN-PY310)共同资助
【分类号】：S-09;P208

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