نتایج جستجو برای: water source
تعداد نتایج: 939798 فیلتر نتایج به سال:
Introduction Rainwater harvesting is becoming increasingly popular as the availability of good quality water decreases. Rainwater harvesting is acknowledged as a sustainable source of water that has less impact on the environment. In 2004, 17% of households in Australia had rainwater as a source of water. In rural Western Australia 62% of the households owned rainwater tanks and 53% had rainwat...
In Nigeria irrigated agriculture is an important tool for economic growth, food security, and poverty reduction during dry periods of rain-fed agriculture. The concentration and composition of dissolved constituents in water determines its quality for irrigation use. Water quality studies strongly suggest that agriculture is a leading source of water quality problems, due to pesticides and othe...
background and purpose: one of the most prominent concerns for the water consumers is pathogenic microorganism contamination. wells and underground water resources are the main resources of drinking water in sari city, iran. the main objectives of the research project were to explore the distribution and frequency of mycoflora in wells and underground water resources of the city and their conta...
Risk assessment of central water supply systems a case study. This paper presents methods for identification and risk assessment of central water supply systems, exemplified by a case study of the central water supply system in Luna locality, Cluj county during 2009-2010. System assessment was performed by means of previous data on water quality monitoring and water samples analysis for the par...
The source-sink relationship determines crop yield, and it is largely regulated by water and nutrients in agricultural production. This has been widely investigated in cereals, but fewer studies have been conducted in root and tuber crops such as potato (Solanum tuberosum L.). The objective of this study was to investigate the source-sink relationship in potato and the regulation of water and n...
This paper investigates the costs of controlling some of the environmental impacts of motor vehicle transportation on groundwater and on surface waters. We estimate that annualized costs of cleaning-up leaking underground storage tanks range from $0.8 billion to $2.1 billion per year over ten years. Annualized costs of controlling highway runoff from principal arterials in the US are much large...
Background and purpose: One of the most prominent concerns for the water consumers is pathogenic microorganism contamination. Wells and underground water resources are the main resources of drinking water in Sari city, Iran. The main objectives of the research project were to explore the distribution and frequency of mycoflora in wells and underground water resources of the city and their conta...
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