四川省阿坝藏族羌族自治州汶川县2010年土地利用图

该数据为四川省阿坝藏族羌族自治州汶川县2010年土地利用类型空间分布数据。数据为矢量数据，包括土地代码、土地类型等属性字段。土地类型按二级类型分为水田、旱地、有林地、灌木林、疏林地、其他林地、高覆盖度草地、中覆盖度草地、低覆盖度草地、河渠、湖泊、水库坑塘、永久性冰川雪地、滩涂、滩地、城镇用地、农村居民点、其他建设用地、沙地、戈壁、盐碱地、沼泽地、裸土地、裸岩石砾地、其他，其中耕地根据地貌分为山地、丘陵、平原、大于25度坡地的水田和旱地。数据比例尺为1：10万。

This dataset contains spatial distribution data of land use types in Wenchuan County, Ngawa Tibetan and Qiang Autonomous Prefecture, Sichuan Province, in 2010. It is vector data with attribute fields including land code, land type and others. The land types are classified into secondary-level categories, which are paddy fields, drylands, closed forests, shrublands, open woodlands, other woodlands, high-coverage grasslands, medium-coverage grasslands, low-coverage grasslands, rivers and canals, lakes, reservoir ponds, permanent glacier and snow areas, tidal flats, beach lands, urban land, rural residential areas, other construction land, sandy land, Gobi, salinized lands, marshes, bare land, bare rock and gravel lands, and others. Specifically, cultivated land is subdivided into paddy fields and drylands corresponding to four landform types: mountainous, hilly, plain, and slopes with a gradient greater than 25 degrees. The data scale is 1:100,000.

搜集汇总

背景与挑战

背景概述

该数据集是2010年四川省汶川县1:10万比例尺的土地利用矢量数据，包含25种二级土地类型分类，数据质量可靠错误率低于1/2000。数据由林草科学数据中心按照专业标准加工处理，适用于区域土地利用研究。