Dataset of Crop Sowing Area in Northeast China (1840-1949)

a. Data content (data file/table name, including observation index content)

The dataset of crop planting area in Northeast China (1840-1949) includes elements such as the planting area and cultivated area of the main crops in Northeast China from 1840-1949.

b. Construction purpose

Mainly used for research on agricultural production and dynamic changes in agricultural cultivation processes.

c. Service recipients

Students and researchers engaged in related research, as well as management and teaching personnel.

d. Time range of data

1840-1949

e. The spatial range of data

Northeast region

a. 数据内容（含数据文件/表名称、观测指标内容）
本数据集为1840-1949年中国东北地区农作物种植面积数据集，涵盖1840至1949年间东北地区主要农作物的种植面积与耕地面积相关指标。
b. 数据集构建目的
主要用于农业生产及农业耕作过程动态变化相关研究。
c. 服务对象
相关研究领域的学生、科研人员，以及农业管理与教学从业人员。
d. 数据时间范围
1840-1949
e. 数据空间范围
中国东北地区