中国多时相不透水面数据集

本数据集（CAIS）提供了2016年至2022年中国陆域范围内的10米分辨率逐年不透水面分布信息，反映了中国近年来不透水面的时空演变格局。不透水面主要指由沥青、混凝土、砖石等建筑材料铺设的人工表面，包括城市建筑物顶部、道路、广场以及农村聚落等，是人类活动强度的直接体现，也是衡量城市化进程的关键指标。不透水面的扩张深刻改变了原本的自然地表覆盖，对区域水文循环、城市热岛效应、生物多样性以及生态环境质量产生重要影响。本数据集不仅包含2016年的基础存量数据，还详细记录了2017年至2022年逐年的新增扩张信息，精准刻画了从东部沿海城市群到西部干旱区绿洲、从城市中心到乡村聚落等不同地理单元的人工建设用地细节。该数据有效揭示了中国不同区域的城市化发展差异与扩张特征，可为国土空间规划、城市可持续发展评估、人地关系研究以及生态环境监测提供高精度的数据基础。

This dataset (CAIS) provides annual impervious surface distribution information at 10-meter resolution across China's terrestrial area from 2016 to 2022, reflecting the spatio-temporal evolution pattern of impervious surfaces in China in recent years. Impervious surfaces mainly refer to artificial surfaces paved with construction materials such as asphalt, concrete, and masonry, including urban building roofs, roads, squares, rural settlements, etc. They are a direct manifestation of human activity intensity and a key indicator for measuring urbanization progress. The expansion of impervious surfaces has profoundly altered the original natural land cover, exerting significant impacts on regional hydrological cycles, urban heat island effects, biodiversity, and ecological environment quality. This dataset not only includes the basic stock data for 2016, but also comprehensively records the annual newly increased expansion information from 2017 to 2022, accurately depicting the details of artificial construction land in various geographical units, ranging from eastern coastal urban agglomerations to oases in western arid regions, and from urban centers to rural settlements. This dataset effectively reveals the differences in urbanization development and expansion characteristics across different regions of China, providing a high-precision data foundation for territorial spatial planning, urban sustainable development assessment, human-land relationship research, and ecological environment monitoring.

搜集汇总

背景与挑战

背景概述

该数据集提供了中国2016-2022年10米分辨率的年度不透水面分布信息，涵盖城市和农村地区，是研究城市化进程和人类活动强度的重要数据源。