基于GIS的山地农田系统投入产出空间特征分析——以河南省吴沟村为例

Spatial features of input-output of mountainous farmland system aided by GIS—A case study from Wugou Village,Henan Province

对河南省吴沟村482块农田属性及其能量投入产出特征的调查分析表明,吴沟村农田系统中能量投入、产出较大的地块主要位于居民区周围和吴沟公路两侧;相比而言,旱平地为高投入、高产出、高利用效率的系统;农田系统能量产投效率与农田能量投入水平、产出水平存在密切关系。就不同种植作物而言,单位面积产投效率为黄豆<小麦<玉米。

Based on the investigation on the energy attributions and the input-output characters of 482 farmland systems in Wugou Village, the paper points out that the farmlands with higher energy input and output mainly lie around residential area and along the Wugou Road. The system of drought flat farmland is higher in input,output and ratios of output to input, which are related with the farmland system input and output levels. The ratios of output to input of unit area of different crops rank as follow： soybean〈 wheat〈 corn.