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.