Multi Attribute Data - Hastings River Catchment - Landform and Condition Dataset

The multiple attribute mapping process as applied in this dataset provides a vector based inventory of the landscape in terms of landuse, vegetation, presence of tree regrowth, tree and shrub canopy density, presence of understorey and soil erosion condition.\r\nIt is referred to as Land Condition Mapping. Mass movement is mapped where it exists as is a selected range of weed species. These characteristics of the land are part of the larger dataset of characteristics that can be mapped using the NSW Dept. of Land and Water Conservation's full set of attribute codes. Multi Attribute Data is a vector-based inventory of the landscape comprising polygon and linear features. This system of mapping can describe a number of attributes (such as slope, terrain, landuse, vegetation community, presence of tree regrowth, soil erosion, rock outcrops, geology, Great Soil Groups, weed species and soil conservation measures) in to one polygon. The value of attribute mapping lies in the fact that the data, which objectively characterises the land, can be used for a variety of purposes and is only limited by the scale of mapping and the classification used. This translates into the availability of a range of derivative products. Mapping is typically carried out at 1:25 000 scale using topographic maps as a base. Outputs are most useful at a sub- catchment or regional scale but not generally at property level.

本数据集所采用的多属性制图流程，可基于矢量格式对研究区景观开展清查，涵盖土地利用、植被、林木更新状况、乔灌冠层密度、林下植被存在情况以及土壤侵蚀状况等要素。
该制图方法被称为土地状况制图（Land Condition Mapping）。
针对存在块体运动的区域，以及选定范围内的杂草物种，均会开展相应制图标注。
上述土地特征仅是可通过新南威尔士州土地与水务局（NSW Dept. of Land and Water Conservation）全套属性编码开展制图的完整土地特征数据集的一部分。
多属性数据属于基于矢量的景观清查数据集，包含多边形与线状地物两类要素。
该制图系统可将多种属性（例如坡度、地形、土地利用、植被群落、林木更新状况、土壤侵蚀、岩石露头、地质情况、大土类（Great Soil Groups）、杂草物种以及水土保持措施）整合至单个多边形要素中。
多属性制图的核心价值在于，其客观表征土地特征的数据可应用于多种场景，其应用边界仅受制图比例尺与所采用的分类体系限制。
这意味着可生成一系列可供使用的衍生数据产品。
制图工作通常以1:25000比例尺的地形图作为基础底图开展。
该制图成果在子流域或区域尺度下实用性最强，通常不适用于地块级别的应用场景。