CERRADO ENCLAVE AND THE UPDATE OF THE MAPPING OF LANDSCAPE UNITS IN THE STATE OF RIO GRANDE DO NORTE

Abstract The mapping of landscape units is a dynamic process in which constant modifications are needed. Based on this, this article sought to update the mapping of landscape units in the state of Rio Grande do Norte. This was possible due to the combination of field activities and new methodological procedures, with analyzes and refinements of previous mappings conducted by Silva (2018), Bernardino (2019), and Souza (2020). The main result is the update of a mapping that includes the (re-) delimitation and (re-) classification of Morphoclimatic Domains, Natural Regions, and Geocomplexes in the territory of this state. A new unit was identified and inserted: a cerrado enclave, which, until then, had not been described and analyzed as such in the established literature; consequently, one more natural region and two geocomplexes were mapped and delimited. New territorial occurrences of units already identified/classified in the original work were also mapped and, therefore, there was a resizing of landscapes of different taxa, which resulted from these modifications and of the refinement of their limits, due to the greater scalar detail, with the deepening of the research.

摘要 景观单元制图是一项需持续修正完善的动态过程。基于此，本文旨在更新北里奥格兰德州（Rio Grande do Norte）的景观单元制图成果。本研究通过结合野外实地调查与全新方法学流程，并对Silva（2018）、Bernardino（2019）及Souza（2020）完成的既往制图成果开展分析与优化，最终实现了这一目标。本研究的核心成果为更新后的制图方案，涵盖对该州境内地貌气候域（Morphoclimatic Domains）、自然区域（Natural Regions）及地学复合体（Geocomplexes）的（重新）划定与（重新）分类。研究中识别并新增了一处塞拉多（cerrado）飞地——截至目前，该类单元尚未在既有学术文献中被如此界定与分析；据此，本次制图额外划定了1个自然区域与2个地学复合体。此外，本研究还对既往研究中已识别/分类的景观单元的新分布区域开展了制图工作。上述修改与边界优化，均源于研究深化所带来的更高尺度细节精度与边界细化工作。