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作 者:陈丽[1,2] 郝晋珉[1,2] 艾东[1,2] 朱传民[1,3] 李牧[1,2] 袁凌波
机构地区:[1]中国农业大学资源与环境学院,北京100193 [2]国土资源部农用地质量与监控重点实验室,北京100193 [3]东华理工大学地球科学学院,南昌330013
出 处:《农业工程学报》2015年第2期288-297,共10页Transactions of the Chinese Society of Agricultural Engineering
基 金:国家科技支撑计划(2015BAB06B01)
摘 要:在当前区域发展和保障粮食安全的双向压力下,为了了解粮食主产区增产潜力、区域内部差异及空间分布特征,该文以土地利用现状数据为基础,通过空间均衡增产途径分析,初步研究了黄淮海平原均衡增产潜力及其空间分布;运用空间自相关分析方法结合GIS技术,分析了黄淮海平原增产潜力空间分布模式。结果表明:黄淮海平原粮食增产潜力达到3 304.57万t,空间上表现为南部平原区高于西北部平原区;黄淮海平原粮食增产潜力的空间分布存在正的空间自相关性,空间集聚类型主要为高高集聚型和低低集聚型;在增产潜力及增产潜力空间分布模式引导下,黄淮海平原土地整治类型区划可分为中低产田改造区,包含258个区县;农用地整理区包含24个区县;农村居民点整治区,包含20个区县;土地开发区,包含7个区县。通过均衡的思想,对进一步提高粮食主产区的产量,保护国家粮食安全有重要意义,同时可为因地制宜制定区域均衡增产方向和途径提供支撑。With the rapid industrialization and urbanization, the food security in China is not only just about maintaining a growth of total grain production, but also about keeping the increase of grain yield at a sustainable and steady pace. For the purpose offood security and social development, it is meaningful to study the yield increasing potential of grain and its spatial differentiation in Huang-Huai-Hai Plai, one of the main grain production areas of China. According to the land use data, this study selected 309 counties in this area as research units and used the method of exploratory spatial data analysis (ESDA) to investigate the spatial distribution pattern of balanced yield increasing potential. On the basis of the balanced thoughts, this study established a theoretical framework of promoting further grain productivity growth in study area. The balanced growth of grain yield consists of 3 progressive types (spatial, temporal and functional balanced growth of grain yield). Spatial balanced growth of grain yield, which is easy to achieve, is to make the small spatial cell (such as county) with different productivities of food reach a balanced and quite higher output. Increasing gain yield evenly in space can be achieved by adopting a series of measures on land consolidation. Using advanced science and technology to achieve multiple cropping is called temporal balanced growth of grain yield. The balanced yield increasing is not only to increase the biological output (grain production) but also to synergistically improve the other functions of cultivated land, which is functional equilibrium. The process to achieve the balanced growth of grain yield is gradual. This paper revealed the spatial balanced yield increasing potential of grain and its spatial differentiation in the main grain production areas in China. The methods included an analysis of the approaches to improve grain yield in Huang-Huai-Hai Plain based on balanced thoughts, calculation of the balanced yield increasing potential by usin
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