Search

Results 5811 - 5820 of 6407 (Sorted by date)
Peer-reviewed Article
In IRES Vol.6 No.2
Author:
Monthip Sriratana Tabucanon
Thailand completed its Eighth National Economic and Social Development Plan at the end of 2001. Important changes in natural resource management and environmental protection were made during the five-years of this National Plan. The Ninth National Economic and Social Development Plan carries forward many of these crucial efforts regarding natural...
Peer-reviewed Article
In IRES Vol.6 No.2
Author:
László Somlyódy
Olli Varis
Most parts of the world are facing escalating difficulties in meeting the growing demand for freshwater, while at the same time they are confronted by a deteriorating supply of this precious resource. Decisions and attitudes concerning human development, institutional frameworks, water and wastewater infrastructure, and other technological issues...
Peer-reviewed Article
In IRES Vol.6 No.2
Author:
Xu He
Liu Xiaoqin
Zhang Lei
Jin Guoping
Economic growth has produced great benefits for China, but it has also given rise to mounting environmental problems that threaten the country's sustainable development. Managing groundwater resources effectively is crucial because of the integral role of water in daily life, the economy, and the environment. The situation of water scarcity in...
Peer-reviewed Article
In IRES Vol.6 No.2
Author:
Chikafusa Sato
Michiko Haga
Jiro Nishino
A huge volume of groundwater was being pumped out for factories and to serve a growing population when ground subsidence was first detected in Tokyo in the years after 1910. Over the ensuing decades the water table dropped, falling to as low as 58 meters below sea level in 1965. The volume pumped out continued to grow until 1970, when it peaked at...
Peer-reviewed Article
In IRES Vol.6 No.2
This paper provides an overview of the common types of groundwater contamination observed in Asia, along with a discussion of the policy aspects of groundwater management. Groundwater is an essential part of the water cycle and plays an important role in domestic water supplies and economic activities. However, groundwater contamination, both...
Peer-reviewed Article
In IRES Vol.6 No.2
Author:
Mukand S. Babel
Ashim Das Gupta
Niña Donna Sto. Domingo
The various negative impacts on the environment and society caused by land subsidence have been a problem in Bangkok, Thailand, since the 1970s. Intensive groundwater extraction for industrial and domestic purposes since the 1950s, which led to a decline of groundwater levels, has been identified by various studies as the primary cause of the...
Peer-reviewed Article
In IRES Vol.6 No.2
Author:
M. Ashraf Ali
High arsenic concentrations in groundwater were first detected in western Bangladesh in the early 1990s. The arsenic is of natural origin and is believed to be mobilized in the subsurface by a number of mechanisms that are not yet clearly understood. Estimates of the population in Bangladesh now exposed to concentrations over the national drinking...
Peer-reviewed Article
In IRES Vol.6 No.2
Author:
N. P. Dan
B. X. Thanh
B. D. Truong
This paper focuses on issues of typical groundwater pollution caused by inadequate wastewater control systems in Vietnam, a common problem in many developing countries around the world. Two case studies are presented, one of industrial wastewater problems in the province of Tay Ninh, and the other of groundwater contamination by an unsanitary...
Peer-reviewed Article
In IRES Vol.6 No.2
The demand for groundwater in Sri Lanka has grown rapidly over the past few decades, mainly as a result of population growth, economic development, and shortages in rainfall. Recent estimates show that over 55 percent of the population now relies on it for their daily needs. As a free, easily tapped commodity groundwater is used in a wide variety...
Peer-reviewed Article
In IRES Vol.6 No.2
Author:
Blanca Jiménez
Wastewater is an important source of water and nutrients for irrigation in developing countries, particularly but not restricted to those located in arid and semi-arid areas. The use of wastewater is widespread and represents around 10 percent of the total irrigated surface worldwide, although varying widely at local levels. While the use of...