文章摘要
21世纪以来三江平原农作物种植结构演化研究
The evolution path of crop structure in the Sanjiang Plain in the 21st century
投稿时间:2019-03-08  最后修改时间:2019-06-13
DOI:10.13872/j.1000-0275.2019.0075
中文关键词: 农作物  种植面积  种植结构类型  时空变化  三江平原
英文关键词: crops  planting scale  crop structure  temporal and spatial change  Sanjiang Plain
基金项目:国家自然科学基金项目(41571167);黑龙江省自然科学基金项目(D201401);东北农业大学东农学者计划项目(18QC10)
作者单位E-mail
杜国明 东北农业大学公共管理与法学院 nmgdgm@126.com 
张扬 东北农业大学公共管理与法学院 2638789317@qq.com 
李全峰 东北农业大学公共管理与法学院 lqfdy@163.com 
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中文摘要:
      客观分析农作物种植结构演化是优化调整农作物种植结构、推进农业供给侧改革和实现农业现代化的重要基础。基于2000—2015年遥感影像反演数据,利用数理统计分析和GIS空间分析方法,刻画三江平原农作物种植结构时空演变特征及规律。研究结果表明:1)2000—2015年三江平原大豆与其他作物的种植面积明显减少,而玉米和水稻种植面积显著增加。2)从时序看,15 a间三江平原县域农作物种植结构类型向水稻与玉米等单一化类型演变,且以大豆与其他作物组合型为主导的县域农作物种植结构类型向水稻和玉米组合型转变。3)从空间看,玉米与水稻的单一化类型与组合型主要扩张于东北部河流沿岸及中部地势低平的平原县域,而大豆与其他作物组合型则萎缩至西北和南部地势较高的山地丘陵县域。4)自然环境、社会经济状况、科学技术等因素共同作用推动了三江平原农作物种植面积和种植结构类型时空变化。在国家/区域农业供给侧结构性改革中,三江平原需要调减玉米种植规模,适当调增大豆种植规模,稳定水稻种植规模,形成合理种植结构与布局。
英文摘要:
      Analyzing crop structure objectively is important for optimizing and adjusting crop structure, advancing agricultural supply-side reform and realizing agricultural modernization. Based on the remote sensing images of Sanjiang Plain from 2000 to 2015, and applying the GIS spatial analysis and mathematical statistical analysis methods, this paper analyzed the spatial-temporal characteristics and evolution path of the crop structure. Results indicate that: 1) from 2000 to 2015, the planted acreage for corn and rice increased significantly, and the soybean acreage and other crop areas decreased; 2) in the past 15 years, the crop structure in Sanjiang Plain counties changed to single crop variety of rice or corn, and the structure of combination of soybean and other crops changed to the structure of the combination of rice and corn; 3) from the spatial perspective, the single crop structure and the structure of the combination of corn and rice were mainly expanded in the northeast river coast and the low-lying plain counties in the middle, while the structure of the combination of soybean and other crops shrunk to the high-lying mountainous and hilly counties in the northwest and the south; and 4) factors such as natural environment, social and economic conditions, agricultural investment and technological progress affect each other and jointly promote the spatial-temporal change of crop planting area and crop structure in Sanjiang plain. As for the national/regional agricultural supply-side structural reform, Sanjiang Plain needs to reduce the planting scale of corn, to increase the planting scale of soybean appropriately, and to stabilize the planting scale of rice to form a reasonable crop structure.
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