2020年京津冀1 km格网沟渠密度数据集

A dataset of irrigation ditch density with a spatial resolution of 1 km grid in Beijing-Tianjin-Hebei region(2020)

沟渠作为农田生态系统中重要的生态廊道,不仅具有汇水、持水和水流通道的作用,而且具备生物多样性保育和多种湿地生态价值,发挥着水质净化和维持生物多样性的作用,沟渠密度是表现一定区域沟渠结构的重要指标,可直接反映沟渠的配置情况和农田的排灌能力。本数据集以2020年全国国土变更调查数据为数据源,利用软件提取沟渠骨架线,使用公里格网生产工具,通过格网空间计算,得到2020年京津冀1 km格网沟渠密度数据集。本数据集可用于乡村规划编制、农田灌排便利度、耕地质量评价、耕地资产评估等方面研究。

As important ecological corridors in farmland ecosystems,ditches are not only important for collecting water,holding water as flowing channels,but also valuable for biodiversity conservation as various wetland ecological systems.They play an important role in purifying water quality and maintaining biodiversity.Ditch density is an important indicator of ditch structure in a certain area,directly revealing ditch configuration and farmland irrigation and drainage capacity.Taking the national land change survey data in 2020 as the data source,we extracted the skeleton lines of irrigation canals and ditches by using software,and calculated the density of 1 km grid ditches in Beijing,Tianjin and Hebei in 2020 by using km grid production tools.This dataset can be used for research on rural planning,farmland irrigation and drainage convenience,farmland quality evaluation,farmland assets evaluation,etc.