中国1：300万黑土分布数据集（1989年）

黑土是肥力最高，最具有农业生产潜力的土壤。中国土壤主要分布在东北三省及内蒙东四盟地区。数据资料来源于本所项目积累，根据全国第二次土壤普查纸图扫描，利用ArcGIS 9.3软件进行人工跟踪数字化，并按照相应的土壤分类系统进行属性匹配，最后对数据进行编辑、转换、分析处理、制图输出，转化为shape格式数据。该数据集可为从事农业生产和耕地地力评价研究提供数据支撑。

Black soils (Mollisols) are the soils with the highest fertility and greatest agricultural production potential. Black soils in China are mainly distributed in the three northeastern provinces and the four eastern leagues of Inner Mongolia Autonomous Region. The data were accumulated from projects of our institute. First, the paper maps from the Second National Soil Survey of China were scanned. Subsequently, manual tracing digitization was conducted using ArcGIS 9.3 software, followed by attribute matching based on the corresponding soil classification system. Finally, data editing, format conversion, analysis, mapping and output were performed, and the dataset was converted into Shapefile format. This dataset can provide data support for agricultural production and research on cultivated land fertility evaluation.

搜集汇总

背景与挑战

背景概述

该数据集提供了1989年中国黑土的空间分布信息，数据来源于全国第二次土壤普查，经过数字化和处理，以shape格式提供，适用于农业生产和耕地地力评价研究。