نتایج جستجو برای: groundwater decline
تعداد نتایج: 118576 فیلتر نتایج به سال:
Groundwater exploitation is a major cause of land subsidence, which in coastal areas poses a flood inundation hazard that is compounded by the threat of sea-level rise (SLR). In the lower Mekong Delta, most of which lies <2 m above sea level, over-exploitation is inducing widespread hydraulic head (i.e., groundwater level) declines. The average rate of head decline is ∼0.3 m yr, based on time-s...
Several countries of Asia, including Malaysia, have in recent years experienced spectacular economic growth and social change. This, together with declining fertility rates and mortality rates, and accompanying increased expectation of life at birth have resulted in rapid population ageing of these countries. However, relative to the developed countries, where fertility and mortality declines, ...
1% in 2000. Although the objective was far from being reached (the current rate being close to 2%), in 2000 Mexico had 53 million inhabitants fewer than it would have had if fertility had remained at its 1970 level. The population pyramids of 1930, 1970 and 2000 clearly illustrate this dynamics (Figure 2). In 1930 the population was beginning to recover from the aftereffects of the Revolution a...
This paper reviews the progress made in the assessment of water resources in South Africa over the past 60 years by examining 5 major studies that were undertaken in this period. These studies illustrate how the exponential growth in computer power and the concomitant development of highly sophisticated tools have changed the manner in which our water resources have been appraised, allowing us ...
Groundwater is crucial for economic development in arid and semiarid areas. The Shiyang River Basin (SRB) has the most prominent water use issues northwestern China, overexploited groundwater resources have led to continuous groundwater-level decline. key governance planning project of SRB was issued 2007. This paper synthetically combines remote-sensing data from Gravity Recovery Climate Exper...
This paper explores the welfare consequences of unemployment insurance when private insurance markets are subject to enforcement frictions that limit debt accumulation, endogenously determining individual borrowing limits as a function of the length of unemployment. Reducing the replacement rate in the model initially increases borrowing, as the value of default declines significantly. As the r...
"The paper examines the mother's health-seeking behaviour and childhood mortality in Pakistan. This is based on the 1990-91 Pakistan Demographic and Health Survey (PDHS).... It was found that neonatal, infant, and child mortality rate is the highest among children of mothers aged less than 20 years. Infant and child mortality rate is likewise higher among first and higher order births than amon...
Groundwater is one of the most crucial drinking water sources in Kurdistan. Development, urbanization, and human activities Erbil have led to a decline amount quality groundwater. This research aims investigate examine groundwater Kaniqrzhala (Erbil dumpsite) central basin Erbil, as well impact landfill this region. The investigation encompasses around 27 wells. static level assessed movement r...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید