Conflict Analysis of Land Use and Land Cover in the Permanent Preservation Areas of Ifes - Alegre Campus, Espírito Santo State, Brazil

ABSTRACTThis study aimed to analyze the conflict of land use and land cover in Permanent Preservation Areas (PPA) of the ‘Instituto Federal de Educação, Ciência e Tecnologia do Espírito Santo’ - Ifes, Alegre Campus, in light of the current Brazilian Forest Code. The springs, watercourses, slopes and hill tops of the PPA were defined and investigated. The slopes and hill tops were obtained by the global digital elevation model GEDM-ASTER. Land use and land cover were achieved by photo-interpretation of orbital image sensor Geoeye 1 (spatial resolution of 0.50 m), totaling 36 thematic classes. The results showed that the PPAs occupy 34.33% of the total Ifes area, with an extension of 114.32 ha. The hilltops and watercourses occupy the largest areas, corresponding to 16.94% and 14.03%, respectively. The watercourses are the most affected areas, and the main classes responsible for conflicts are natural pastures (20.41 ha) and non-paved roads (1.18 ha).

摘要：本研究旨在依据现行《巴西森林法》，对圣埃斯皮里图州联邦教育、科学与技术学院（Instituto Federal de Educação, Ciência e Tecnologia do Espírito Santo，简称Ifes）阿雷格里校区的永久保护地（Permanent Preservation Areas，PPA）内的土地利用与土地覆盖冲突开展分析。研究对该永久保护地内的泉眼、河道、坡地及山顶完成界定与调查。坡地与山顶的相关数据通过全球数字高程模型GEDM-ASTER获取。土地利用与土地覆盖信息则通过对空间分辨率为0.50米的轨道影像传感器GeoEye 1的影像进行目视解译得到，共划分36个专题类别。结果表明，永久保护地占Ifes总用地面积的34.33%，总面积达114.32公顷。其中，山顶与河道的占比最高，分别为16.94%与14.03%。河道是受影响最严重的区域，引发冲突的主要土地覆盖类别为天然牧场（占地20.41公顷）与非铺装道路（占地1.18公顷）。