Legacies of historic land use as soil landscape components – Distribution, properties and functions of small anthropogenic relief features and soils in two catchments in Eastern Bavaria

作为土壤景观组成部分的历史土地利用遗产 巴伐利亚东部两个流域的小型人为地形和土壤的分布、特性和功能

• 批准号: 448807789
• 负责人: Professor Dr. Thomas Raab
• 金额: --
• 依托单位: Lehrstuhl Geopedologie und Landschaftsentwicklung
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/448807789?language=en
• 关键词: Legacies; historic; land; use; soil

Human land use often results in direct and indirect modifications of surface morphology and soils. Small anthropogenic relief features and associated soils are valuable but neglected archives for the study of land use history and landscape evolution, and, moreover, affect current ecosystems through their specific ecological site conditions. Areas with a high spatial density of such land use legacies are characterized by a land use legacy soil landscape with a high spatial variability of soil stratigraphy and properties. While more and more studies make use of high resolution digital elevation models (DEM) to investigate anthropogenic geomorphology, there are still significant knowledge gaps regarding the distribution and properties of land use legacy soils. The main aim of this project is to characterize the spatial distribution, properties and ecological function of legacies of historic land use in forest areas with a dynamic land use history. The main work packages comprise 1) a large-scale detection and mapping of land use legacies and their interpretation in relation to natural and historic landscape structures; 2) the mapping of land use legacy and reference soils and analyses of their properties in relation to anthropogenic relief features for selected study areas, and 3) an assessment of land use legacy soil and landform effects on soil moisture regimes. The work programme combines GIS-based analyses of DEM and additional spatially distributed information, sedimentological and pedological field and laboratory methods and applications of a numerical simulation model. The study region of the project comprises the catchments of the rivers Vils and Pfreimd in Northern Bavaria and adjacent forest areas. The long and dynamic land use history and the manifold geology and geomorphology of the area offer ample opportunities for research on anthropogenic soil landscapes. Land use legacies will be mapped from DEM for the total study region (~2000 km2), the detailed mapping and analysis of soil properties in relation to land use legacies will focus on six study areas (< 10 km2, two study areas for each of the three geologic sub-regions of the study region), and the model-based analysis of land use legacy effects on soil moisture will be assessed for one of the study areas and the surrounding catchment (< 100 km2). The combination of large-scale mapping and small-scale analyses aims at assessing the relevance of land use legacy soils at the landscape scale.

人类的土地利用往往直接或间接地改变地表形态和土壤。小的人为地形特征和相关土壤是研究土地利用历史和景观演变的宝贵但被忽视的档案，而且，通过其特定的生态条件影响当前的生态系统。这种土地利用遗产的空间密度高的地区，其特点是土地利用遗产土壤景观的土壤地层和属性的空间变异性高。虽然越来越多的研究利用高分辨率数字高程模型（DEM）来研究人类地貌，但对于土地利用遗留土壤的分布和性质仍然存在重大的知识空白。该项目的主要目的是描述具有动态土地利用历史的林区历史土地利用遗产的空间分布、性质和生态功能。主要工作包包括：（1）大规模探测和绘制土地使用遗留物及其与自然和历史景观结构的关系;（2）绘制土地使用遗留物和参考土壤，并分析其与选定研究区域的人为地貌特征有关的特性;（3）评估土地使用遗留土壤和地形对土壤水分状况的影响。该工作方案结合了基于地理信息系统的数字高程模型分析和额外的空间分布信息、沉积学和土壤学领域以及实验室方法和数值模拟模型的应用。该项目的研究区域包括北方巴伐利亚州的维尔斯河和普弗赖姆河的集水区以及邻近的森林地区。长期和动态的土地利用历史和多样的地质地貌的区域提供了大量的机会，研究人为土壤景观。土地使用遗产将从DEM中绘制整个研究区域（~2000平方公里），详细测绘和分析与土地利用遗产有关的土壤特性将集中在六个研究区（< 10平方公里，研究区域三个地质分区各两个研究区），将对其中一个研究区及其周围集水区（< 100平方公里）的土地利用遗留影响进行基于模型的分析，评估其对土壤湿度的影响。大规模绘图和小规模分析相结合的目的是评估土地利用遗留土壤在景观尺度上的相关性。