On the Formation of Regional System to Realize the Sustainable Society

通过以栃木县为研究对象，对未开发的有机废弃物和生物资源的循环系统进行区域性的研究。我们分析了生物有机（生物有机？）包括那些村庄和城市区在内的所有行政单位的废物产生和流出。该分析通过考虑当前的土地使用以及每个行政单元所表达的其他几个特征来进行。根据我们对区域的分析，（栃木县）有机物预算，阐明了循环系统模型中的以下几点：（1）区域生物有机物网络的循环系统中“单独堆肥”不能平衡收支;（2）堆肥与生物能源转化和/或饲料供应相结合生物废物（或动物饲料）的使用对于平衡系统预算至关重要。在分析过程中，解决方案的潜在形式“级联利用系统”在某种程度上变得清晰。虽然在定性的基础上肯定了串级系统的潜力，但对串级系统的定量研究，这是概括串级结构所不可缺少的，有待于以后的研究。

Regional model of recycle based circulatory system for untapped organic wastes and bio-resources were foreseen through studying the Tochigi prefecture as a sample region for this research. We analyzed the balance of bioorganic (bio-organic?) waste generation and outflow for all the administrative units including the villages and city wards in Tochigi prefecture. The analysis performed by taking the current land-use as well as several other characteristics that each administrative units express into an account. As the result of our analysis on the regional (Tochigi prefecture) organic matter budget, the following points on the circulatory system model were clarified.i)The circulatory system of regional bioorganic matter network with "composting alone" cannot be a solution to balance the budget.ii)Composting in combination with bio-energy transformation and/or provender (or animal feed) use of bio-wastes are essential to balance the budget in the system.During the course of the analysis, the potential form of the solution, "cascaded utilization system", becomes somehow clear. Though the cascaded system's potentiality were confirmed in the qualitative bases, the quantitative investigation of the system which indispensable to generalize the cascade structure were left for the future investigation.