耕地细碎化对粮食产量的影响——以河南省焦作市为例

利用河南省焦作市263个农户的实地调查数据，详细分析了耕地细碎化和耕地规模对粮食产量的影响。研究表明：①耕地细碎化导致粮食产量下降，增加农户的耕地总面积或者扩大地块面积则有助于提高粮食产量；②粮食产量受地形条件和土质的影响较大，受耕地细碎化的影响相对较小；③焦作地区农户的耕地规模普遍较小，平原区和河滩区的粮食产量受耕地细碎化的影响不显著，丘陵区耕地细碎化对粮食产量呈负面影响，因此建议降低耕地细碎化。

Land Fragmentation Effects on Grain Output --A Case Study of Jiaozuo City

This paper compared the cultivated land fragmentation and grain output according to the data collected in a field survey of 263 farmers of Jiaozuo City, Henan Province. The results were as follows： Firstly,land fragmentation led to grain output decline, whereas increas the total area or expand the block size of cultivated land could help to improve grain output. Secondly, grain output was greatly influenced by the soil and terrain conditions whereas the land fragmentation was relatively small. Thirdly, cultivated land size of Jiaozuo farmers were in generally smaller scale, grain output of plain areas and flood zone were little affected by land fragmentation, while in hills the land fragmentation played a negative impact on grain output. Therefore, this paper proposed to reduce land fragnentation.