地理学报 ›› 2013, Vol. 68 ›› Issue (5): 680-693.doi: 10.11821/xb201305009
刘珍环1, 李正国1, 唐鹏钦1, 李志鹏1, 吴文斌1, 杨鹏1, 游良志2, 唐华俊1
收稿日期:
2012-11-01
修回日期:
2013-01-19
出版日期:
2013-05-20
发布日期:
2013-05-20
通讯作者:
杨鹏(1975- ), 男, 湖南冷水江人, 博士, 研究员, 主要从事全球变化与农业遥感方面的研究。E-mail: yangpeng@mail.caas.net.cn
作者简介:
刘珍环(1982- ), 男, 江西泰和人, 博士, 主要从事景观生态与土地利用、全球变化与农业遥感方面的研究。E-mail: zhenhuanliu@gmail.com
基金资助:
国家自然科学基金项目(41171328);国家重点基础研究发展计划项目(973项目)(2010CB951502)
LIU Zhenhuan1, LI Zhengguo1, TANG Pengqin1, LI Zhipeng1, WU Wenbin1, YANG Peng1, YOU Liangzhi2, TANG Huajun1
Received:
2012-11-01
Revised:
2013-01-19
Online:
2013-05-20
Published:
2013-05-20
Supported by:
National Natural Science Foundation of China, No.41171382; National Basic Program of China (973 Program), No. 2010CB951502
摘要: 通过综合80 年代初以来的农作物面积与产量统计、耕地分布、农业灌溉分布以及作物生长适宜性分布等多源数据, 利用基于交叉信息熵原理的作物空间分配模型(Spatial Production Allocation Model, SPAM),获得了我国10 km像元尺度的水稻分布信息。在此基础上,重点分析了80 年代初以来水稻种植面积与产量的时空变化特征。总体来看,在全国水稻种植区域内发生变化的地区中有超过50%的地区水稻种植面积出现缩减态势,但仍有近70%的地区水稻产量在增加。空间变化来看,种植面积缩减主要发生在东南沿海的广东、福建和浙江等省,而增加主要出现在东北地区的吉林和黑龙江等省,我国水稻种植重心因此向东北方向迁移约230 km,产量重心向东北迁移约320 km。同时,研究还发现我国水稻种植面积变化对产量增减具有重要影响,其中产量增加表现为面积与非面积因素的共同作用,数据显示种植面积扩展对水稻增产的平均贡献率约54.5%,而在产量减少的区域,面积缩减对减产的贡献率高达80%以上。
刘珍环, 李正国, 唐鹏钦, 李志鹏, 吴文斌, 杨鹏, 游良志, 唐华俊. 近30年中国水稻种植区域与产量时空变化分析[J]. 地理学报, 2013, 68(5): 680-693.
LIU Zhenhuan, LI Zhengguo, TANG Pengqin, LI Zhipeng, WU Wenbin, YANG Peng, YOU Liangzhi, TANG Huajun. Spatial-temporal changes of rice area and production in China during 1980-2010[J]. Acta Geographica Sinica, 2013, 68(5): 680-693.
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