河湟谷地耕地空间分布格局数据集(1800、1900)

本数据包含1800年、1900年两期河湟谷地耕地空间分布格局栅格数据，空间分辨率为1km×1km。1800年、1900年河湟谷地耕地数据主要来自于成书于乾隆二十年的《西宁府新志》、《循化厅志》《甘肃新通志》。县域行政界线的确定参考谭其骧主编的《中国历史地图集》及牛汉平主编的《清代政区沿革综表》。搜集耕地数据后将原始田亩数据进行校正，将历史耕地数据转换为统一的现代单位（km²），后采用网格化模型将两期耕地数据进行空间化。河湟谷地是青藏高原最主要的农业发展区之一，尤其到了清朝，大兴移民屯田后，该区土地覆被发生了重大变化，通过整理、校正该区历史文献中记载的1800年、1900年田亩数据，运用网格化的方法将其分配在空间上，恢复了1800年、1900年河湟谷地的耕地空间格局，以期为揭示青藏高原典型河谷农业区耕地变化和人类活动的基本状况提供理论依据。

This dataset contains raster data of the spatial distribution pattern of cultivated land in the Hehuang Valley for two periods, 1800 and 1900, with a spatial resolution of 1 km × 1 km. The cultivated land data for 1800 and 1900 in the Hehuang Valley are mainly derived from *Xining Fu Xin Zhi (New Gazetteer of Xining Prefecture)*, *Xunhua Ting Zhi (Gazetteer of Xunhua Department)* and *Gansu Xin Tong Zhi (New General Gazetteer of Gansu)*, which were completed in the 20th year of the Qianlong reign of the Qing Dynasty. The determination of county-level administrative boundaries refers to *Atlas of Historical Maps of China* compiled by Tan Qixiang and *Comprehensive Table of the Evolution of Qing Dynasty Administrative Divisions* compiled by Niu Hanping. After collecting the original cultivated land data measured in mu, a traditional Chinese land unit, we first corrected the data, converted the historical cultivated land figures into a unified modern unit (km²), and then adopted a gridding model to spatially distribute the cultivated land data for the two periods. The Hehuang Valley is one of the main agricultural development regions on the Qinghai-Tibet Plateau. Especially during the Qing Dynasty, large-scale immigration and garrison farming led to substantial changes in the regional land cover. By sorting out and calibrating the mu-based cultivated land records from local historical documents for 1800 and 1900, and spatially allocating these data via a gridding method, we reconstructed the spatial patterns of cultivated land in the Hehuang Valley for these two years. This dataset aims to provide a theoretical basis for revealing the changes in cultivated land and the basic status of human activities in the typical valley agricultural area of the Qinghai-Tibet Plateau.

搜集汇总

背景与挑战

背景概述

该数据集包含1800年和1900年两期河湟谷地耕地空间分布格局的栅格数据，空间分辨率为1km×1km。数据来源于历史文献，经过校正和网格化处理，旨在揭示青藏高原典型河谷农业区耕地变化和人类活动的基本状况。