In this study, we analyze an optimal policy and evaluate new devices and technologies to improve the water quality of Lake Kasumigaura, considering both - the total ecological system in and around the lake and the socio-economic situational changes over a certain period of time. The optimal...

Northeast Asia countries (e.g. around the Sea of Japan area) cooperate in economic and environmental policies, etc., because the comprehensive problems like the climate change and global warming occur in recent years. The ring Sea of Japan area consists of Japan, Republic of Korea, China, and...

To this day in Japan, the water supply service for agricultural use has been formed as the supply-driven system. In fact, the farmers can use the utilization volume of agricultural water and they have to pay the price of agricultural water fee decided by water supplier side. However, diverse...

To this day in Japan, the water supply service for agricultural use has been formed as the supply-driven system. In fact, the farmers can use the utilization volume of agricultural water and they have to pay the price of agricultural water fee decided by water supplier side. However, diverse...

To this day in Japan, the water supply service for agricultural use has been formed as the supply-driven system. In fact, the farmers can use the utilization volume of agricultural water and they have to pay the price of agricultural water fee decided by water supplier side. However, diverse...

Utilizing potential energy in wastes is significant for achieving sustainable development of the environment and the society. It can not only prevent the wastes from polluting the environment, but also possess many other advantages such as saving energy resources, material recycle and creation...

This study focused on the Edo city and the basin of the Tokyo bay in the late 19th century. Edo is the former name of Tokyo, Japan, and was the central political city in the Edo period, which was from 1603 to 1868. In 1603 the Shogunate Government of Edo was formed, and the Edo period was ruled...

Since the industrial revolution, growing and active economic activities in urban area have disrupted sustainable material flow balance in the environment, and the imbalance has induced some serious environmental problems. In order to realize proper urban management, taking measures to keep...

This study focused on the Edo city and the basin of the Tokyo bay in the late 19th century. Edo is the former name of Tokyo, Japan, and was the central political city in the Edo period, which was from 1603 to 1868. In 1603 the Shogunate Government of Edo was formed, and the Edo period was ruled...

Since the industrial revolution, growing and active economic activities in urban area have disrupted sustainable material flow balance in the environment, and the imbalance has induced some serious environmental problems. In order to realize proper urban management, taking measures to keep...