Mapping cropping patterns in the North China Plain over the past 300 years and an analysis of the drivers of change  

清代以来华北平原作物熟制演变重建与驱动力分析

作　　者：LI Shicheng LIU Yating LI Jianrui ZHANG Xuezhen 李士成;刘亚婷;李建蕊;张学珍

机构地区：[1]School of Public Administration,China University of Geosciences,Wuhan 430074,China [2]Key Laboratory of Land Surface Pattern and Simulation,Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China [3]College of Resources and Environment,University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Journal of Geographical Sciences》2024年第10期2074-2088,共15页地理学报（英文版）

基　　金：National Key R&D Program of China,No.2022YFF0801103。

摘　　要：It is essential to map the cropping patterns when investigating the mechanisms and impacts of climate change.However,the long-term evolution of cropping patterns remains poorly understood.This study collected hundreds of records of cropping intensity and crop combinations from local gazetteers and other relevant articles for the North China Plain(NCP)over the past 300 years.Then,we analyzed the evolutionary characteristics and drivers in terms of climate change and advances in agricultural technology.From the Qing Dynasty to the 1950s,one harvest per year(1H1Y)was the dominant pattern in the northern NCP,and three harvests in two years(3H2Y)was the dominant pattern in Henan and Shandong provinces.The 1H1Y crops were cereals and sorghum.The 3H2Y crop combinations were spring maize,winter wheat,and beans.In the 1960s and 1970s,the cropping intensity in much of the NCP was two harvests per year(2H1Y)or a mix of the 2H1Y and 3H2Y patterns.In the 1980s,the cropping intensity in the NCP was dominated by 2H1Y.Since the 1960s,the 2H1Y crop compositions have been winter wheat-summer maize in Shandong,Henan,and Hebei provinces,while winter wheat-rice dominated north of the Huaihe River.The 3H2Y summer crop changed from beans to maize/cereals over time.Climate warming was not the dominant factor driving the evolution of cropping intensity in the NCP.Advances in agricultural production conditions and reforms in production relations have promoted the rapid development of multiple cropping since the 1950s.

关 键 词：North China Plain Qing Dynasty cropping intensity crop combinations crop harvest frequency climate change 

分 类 号：P467[天文地球—大气科学及气象学] S162.5[农业科学—农业气象学]