Tuscany Region — PIT — Invariant II — Ecological Network Charter

Raster cartography in a scale of 1:50,000, extended to the entire territory of the Tuscany region, conceived as a theme of support to the cognitive framework of the II invariant and to analyses on landscape issues in the context of the activities to revise the landscape discipline of the PIT of the Tuscany Region. The map is aimed at highlighting the structural and functional elements of the regional ecological network. The drafting of the charter is the result of a synthesis and reworking of numerous information from institutional and/or free sources. The paper was based on models of environmental suitability of the different soil uses compared to the species of focal vertebrates (sensitive to fragmentation) typical of forest or agropastoral ecosystems. The map is designed to represent the level of ecological fragmentation on the regional scale, the source nuclei of biodiversity for both forest ecosystems, agricultural and pastoral ecosystems, the connecting matrix and critical elements for the functionality of the network. The process of constructing the Charter has been designed so that it can be updated by modifying the components of the Charter, both those which give rise to the structural elements and those that make up the functional elements. The map may also be updated following the implementation of landscape defragmentation measures or, on the contrary, following the emergence of new elements of fragmentation (e.g. road or rail infrastructure). The map may then be updated in accordance with the regional land use update programme.比例尺为1:50000的栅格制图（Raster Cartography）数据集覆盖托斯卡纳大区全境，其编制旨在支撑第二不变量的认知框架构建，并服务于托斯卡纳大区修订其PIT景观规制过程中涉及的景观问题分析工作。本制图旨在凸显区域生态网络的结构与功能要素。本图谱的编制整合并重构了来自官方机构及/或公开渠道的多源信息，制图过程以森林或农牧生态系统中典型的、对生境破碎化敏感的关键脊椎动物类群为参照，构建了不同土地利用类型的环境适宜性模型。本图谱用于表征区域尺度下的生态破碎化程度，涵盖森林、农业及牧草地生态系统的生物多样性源核心区、生态连接基质，以及维系网络功能的关键要素。本图谱的构建流程预留了更新机制，可通过修改图谱的结构要素组成与功能要素组成实现迭代更新；当景观破碎化整治措施落地，或出现新的破碎化要素（如道路、铁路基础设施）时，本图谱亦可同步更新。此外，本图谱还可依据托斯卡纳大区土地利用更新计划进行迭代更新。