Multi Attribute Data - Bellinger 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，可针对土地利用、植被、树木再生情况、乔灌冠层密度、林下植被分布状况以及土壤侵蚀状况，提供景观的基于矢量的要素盘点数据。该制图方法被称为土地状况制图（Land Condition Mapping），可对存在块体运动的区域以及选定的一系列杂草物种开展制图工作。
上述土地特征属于更大范围土地特征数据集的组成部分，该数据集可通过新南威尔士州土地与水资源保护部（NSW Department of Land and Water Conservation）的全套属性编码进行制图。多属性数据（Multi Attribute Data）是由多边形与线状要素构成的景观矢量要素盘点数据。
该制图系统可将多种属性（如坡度、地形、土地利用、植物群落、树木再生情况、土壤侵蚀、岩石露头、地质状况、大土组（Great Soil Groups）、杂草物种以及土壤保护措施）整合至单个多边形要素内。属性制图的核心价值在于，其数据可客观表征土地特征，且能应用于多种场景，应用边界仅受制图比例尺与所用分类体系的限制。这意味着可产出一系列衍生产品。
制图工作通常以地形图为底图，按1:25000的比例尺开展。其输出成果在子流域或区域尺度下实用性最强，但通常不适用于单个地块级别。