基于作物空间分配模型的东北三省春玉米时空分布特征
Spatiotemporal changes of maize sown area and yield in Northeast China between 1980 and 2010 using spatial production allocation model
查看参考文献41篇
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文摘
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利用1980-2010年东北三省分县玉米播种面积与产量统计、耕地分布、农业灌溉分布以及作物适宜性分布等多源数据,结合基于交叉信息熵原理的作物空间分配模型(Spatial Production Allocation Model, SPAM),在5'×5'的像元尺度模拟了春玉米种植面积与产量的时空分布,并重点分析了两者在纬向、经向,以及高程上的时空变化规律。结果显示:(1)玉米种植面积在2000年前向北扩展至北纬44°~48°间,2000年后在中南部出现大规模发展(北纬42°~44°),并进一步向东扩展至东经123°~127°间,同时还表现为向低海拔(高程100 m以下)和较高海拔(高程200~350 m)扩展的态势;(2)单产在纬向上的增加区主要集中在北纬42°~48°,经向上的单产增加则相对均匀,高程上单产提升区主要集中在海拔350 m以下。(3)像元内玉米种植比例整体上由中低种植比例为主逐步演变为中高比例占据主体,并且中高种植比例像元对应的玉米单产水平整体上较高,反映了市场经济驱动下的玉米种植集聚化和规模化的发展趋势。 |
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其他语种文摘
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Understanding crop patterns and their changes on a large scale is a critical requirement for projecting agro-ecosystem dynamics. However, tools and methods for analyzing crop sown area and yield on spatiotemporal variations are still insufficient currently. By the use of cross-entropy method, a Spatial Production Allocation Model (SPAM) was developed. Combined with geographic spatiotemporal analysis methods, a case study was further presented to analyze the spatial characteristics of maize sown area and yield in Northeast China during 1980-2010 within 5' × 5' grid cells. The results indicated the following: (1) Maize sown area mainly expanded northwards during 1980-2000 (located at 44° N-48° N) and then concentrated at central and southern in Northeast China on latitudinal variations in the following years. Also it moved eastwards (located at 123°E to 127°E) and lower elevation (below 100m) as well as higher elevation (mainly from 200 m to 350 m) region on longitudinal and altitudinal variations, respectively. (2) Maize yield which has been improved largely mainly located at 42°N to 48°N and concentrated at the region below the altitude of 350 m on latitudinal and altitudinal variations, respectively, while its increase is relatively homogeneous on longitudinal variations. (3) Additionally, dominant maize proportion on a pixel scale has developed to middle-high proportion gradually during 1980-2010, and maize yield located at the pixel of middle-high proportion seems higher, which reflected the trends of agglomeration and large-scale development of maize cultivation driven by market economy. |
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来源
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地理学报
,2014,69(3):353-364 【核心库】
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DOI
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10.11821/dlxb201403007
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关键词
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春玉米
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作物空间分配模型
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时空变化
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东北三省
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地址
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1.
中国农业科学院农业资源与农业区划研究所, 农业部农业信息技术重点实验室, 北京, 100081
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中山大学地理科学与规划学院, 广州, 510275
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Environment and Production Technology Division, International Food Policy Research Institute, USA, Washington, 20006
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0375-5444 |
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学科
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农学(农艺学);农作物 |
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基金
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国家自然科学基金项目
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国家973计划
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文献收藏号
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CSCD:5100787
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参考文献 共
41
共3页
|
|
1.
Foley J A. Global consequences of land use.
Science,2005,309:570-574
|
CSCD被引
712
次
|
|
|
|
|
2.
Portmann F T. MIRCA 2000-Global monthly irrigated and rainfed crop areas around the year 2000.
Global Biogeochemical Cycles,2010,24(1011):1-24
|
CSCD被引
51
次
|
|
|
|
|
3.
Ramankutty N. Characterizing patterns of global land use: An analysis of global croplands data.
Global Biogeochemical Cycles,1998,12(4):667-685
|
CSCD被引
28
次
|
|
|
|
|
4.
Ramankutty N. Farming the planet: 1. Geographic distribution of global agricultural lands in the year 2000.
Global Biogeochemical Cycles,2008,22(1003):1-19
|
CSCD被引
62
次
|
|
|
|
|
5.
Liu J. Spatial and temporal patterns of China's cropland during 1990-2000: An analysis based on Landsat TM data.
Remote Sensing of Environment,2005,98:442-456
|
CSCD被引
68
次
|
|
|
|
|
6.
Zhong T Y. Temporal and spatial variability of agricultural land loss in relation to policy and accessibility in a low hilly region of southeast China.
Land Use Policy,2011
|
CSCD被引
2
次
|
|
|
|
|
7.
战金艳. 江西省耕地转移驱动机理.
地理学报,2010,65(4):482-493
|
CSCD被引
1
次
|
|
|
|
|
8.
刘成武. 1980年以来中国农地利用变化的区域差异.
地理学报,2006,61(2):139-145
|
CSCD被引
67
次
|
|
|
|
|
9.
刘旭华. 中国耕地变化驱动力分区研究.
中国科学D辑:地球科学,2005,35(11):1087-1095
|
CSCD被引
42
次
|
|
|
|
|
10.
李景刚. 近20年中国北方13省的耕地变化与驱动力.
地理学报,2004,59(2):274-282
|
CSCD被引
88
次
|
|
|
|
|
11.
Piao S L. The impacts of climate change on water resources and agriculture in China.
Nature,2010,467:43-51
|
CSCD被引
450
次
|
|
|
|
|
12.
Battisti D S. Historical warnings of future food insecurity with unprecedented seasonal heat.
Science,2009,323:240-244
|
CSCD被引
42
次
|
|
|
|
|
13.
Lin G. China's land resources and land-use change.
Land Use Policy,2003,20:87-107
|
CSCD被引
8
次
|
|
|
|
|
14.
方福平. 论中国水稻生产能力.
中国水稻科学,2009,23(6):559-566
|
CSCD被引
26
次
|
|
|
|
|
15.
方修琦. 过去20年中国耕地生产力区域差异变化研究.
地理科学,2009,29(4):470-476
|
CSCD被引
27
次
|
|
|
|
|
16.
Olmstead A L. Adapting North American wheat production to climatic challenges, 1839-2009.
Proceedings of the National Academy of Science,2011,108(2):480-485
|
CSCD被引
14
次
|
|
|
|
|
17.
Verburg P H. Challenges in using land use and land cover data for global change studies.
Global Change Biology,2010
|
CSCD被引
34
次
|
|
|
|
|
18.
宫鹏. 遥感科学与技术中的一些前沿问题.
遥感学报,2009,13(1):16-26
|
CSCD被引
5
次
|
|
|
|
|
19.
唐华俊. 农作物空间格局遥感监测研究进展.
中国农业科学,2010,43(14):2879-2888
|
CSCD被引
105
次
|
|
|
|
|
20.
Xiao X. Mapping paddy rice agriculture in southern China using multi-temporal MODIS images.
Remote Sensing of Environment,2005,95:480-492
|
CSCD被引
55
次
|
|
|
|
|
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