摘要
本文以淹水平作稻田为对照,讨论了浸润垄作稻田土壤表面物相界面特征以及对土壤水、热、气、肥的协调效应。浸润垄作稻田是气—液、气—固、液—固三种土壤表面物相界面共存,消除了淹水平作稻田水层覆盖对土壤和环境间进行的物质循环和能量转化的障碍效应;土壤表面水、热、气交换更新频繁,土壤养分代谢快,有效性高,构成了浸润垄作稻田高水平,高效应的物质循环和能量转化。
The physical characteristics of soil surface and their effects on soil moisture, heat, gas and fertility in the infiltration-ridged paddy field have been studied by comparision with the watcrlogging-lcvcling (conventional) paddy field. The results show that in the soil surface of infiltration-ridged paddy field, soilid, water and gas phases coexist and the rates of material cycle, energy transfomation, water, heat and gas exchanges and soil nutrients metabolism and availability of soil nutrients are higher than those in the watcrlog-ging-lcveling paddy field. It is concluded that the infiltration-ridged paddy field is of high and effective material cycle and energy transformation.
出处
《农村生态环境》
CSCD
1991年第4期32-35,共4页
Rural Eco-Environment
