2015-2020年我国1:1500万玉米重金属含量空间分布图

2015-2020年我国1:1500万玉米重金属含量空间分布图以重金属种类为单位分组分别制图，记录全国主产区玉米采样点分布的空间位置、8种重金属的含量等信息。数据包括：样点编号、采样日期、地理信息、镉总量、铅总量、汞总量、砷总量、铬总量、镍总量、铜总量、锌总量。共形成8个图集。

The spatial distribution maps of heavy metal contents in maize at a scale of 1:15 million in China from 2015 to 2020 were grouped and mapped separately by heavy metal type. This dataset records the spatial locations of maize sampling points in the country's major producing areas, along with the contents of 8 heavy metals and other relevant information. The data includes: sample number, sampling date, geographic information, total cadmium (Cd) content, total lead (Pb) content, total mercury (Hg) content, total arsenic (As) content, total chromium (Cr) content, total nickel (Ni) content, total copper (Cu) content, and total zinc (Zn) content. A total of 8 atlases were generated.

搜集汇总

背景与挑战

背景概述

该数据集是2015-2020年我国玉米重金属含量的空间分布图，比例尺为1:1500万，以8种重金属（镉、铅、汞、砷、铬、镍、铜、锌）为单位分组制图，记录了全国主产区玉米采样点的空间位置和重金属含量信息。数据集包含样点编号、采样日期、地理信息等字段，共形成8个图集，适用于农艺学领域的研究，数据获取需通过订单审核流程。