村域农田生态经济系统投入产出特征研究——以河南省巩义市吴沟村为例

对河南省吴沟村农田生态经济系统投入产出特征研究结果表明,不同类型农田生态经济系统存在显著差异,在物质流和价值流中旱平地为高投入、高产出、低利用效率的系统;在能量流中旱平地为高投入、高产出、高利用效率的系统。而不同农作物种植中黄豆的产投效率相对较高;农田系统投入收益中旱坡地种植小麦、玉米均明显高于旱平地,其中种植小麦产投比旱坡地为旱平地的1.31倍,而种植玉米旱坡地为旱平地的1.27倍。

The input-output features of farmland eco-economic system-A case study from Wugou Village, Gongyi City, Henan Province

The input-output features of farmland eco-economic system in Wugou Village,Henan Province are studied.The results show that different types of farmland eco-economic systems have significant differences.In the respect of the material flow and the fund flow,the dry-flat farmland system is a high-input,high-output and low-ratio utilization(system.) In the respect of the energy flow,the dry-flat one is a high-input and high-output and high-ratio utilization(system.) In different farmland systems,the ratio of output to input of planting soybean is relatively higher.Comparing the structures of output and input of two major crops such as wheat and maize,the ratio of the dry slope farmland system is (higher) than that of the dry flat farmland system.When wheat is planted in the (farmland) system,the former is 1.31 times as the latter,when maize is planted in the farmland system,the former is 1.27 times as the latter.