Ground-truth reference spatial database for Vavatenina District, Analanjirofo Region, Madagascar, 2019
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This geospatial database gives the land use / land cover type of 2105 georeferenced points, distributed thoughout an area of 84 square kilometers located at the west of Vavatenina town, in the Analanjirofo Region, on the northeastern coast of Madagascar. The first attribute of the shapefile indicates wether the point's class was directly identified in the fields (GT = ground-truth) wether photointerpreted (PI). The second attribute of the shapefile indicates the Land use / land cover class among a list of 9 types: - Built up/road/bare areas, - Annual crops/pasture/short vegetation, - Clove dominated park, - Clove monoculture, - Diversified agroforest, - Diversified park, - Plantation of woody species, - Shrubby fallow, - Woody fallow. These 9 types are the basis of a more complete nomenclature which can be identified by satellite, thus being helpful for remote sensing analyses and mapping of the area. This database can be used for any ecology, agronomy, or social science studies needing spatial information on local land use.
本地理空间数据库(geospatial database)收录了分布于马达加斯加东北部海岸阿纳拉尼罗福(Analanjirofo)地区瓦瓦蒂纳(Vavatenina)镇西侧84平方公里范围内的2105个地理参考点的土地利用/土地覆被类型。该数据集配套的形状文件(Shapefile)包含两个属性字段:第一个属性字段用于标识该点的地物类别获取方式,即通过野外直接识别(GT=地面真值(ground-truth)),或是通过像片解译(photointerpreted,PI)得到;第二个属性字段用于标注该点所属的9类土地利用/土地覆被类别,具体包括:建成区/道路/裸地区域、一年生作物/牧场/低矮植被、丁香主导型园林、丁香单一栽培林、复合农林业、复合型园林、木本物种人工林、灌丛撂荒地、木本撂荒地。上述9类类别是一套可通过卫星遥感识别的更完整命名体系的基础,因此可用于该区域的遥感分析与制图工作。本数据库可应用于所有需要获取当地土地利用空间信息的生态学、农学及社会科学研究。




