Water pollution from agriculture and its control measures吴启堂高婷
Agricultural pollution of surface water, groundwater and marine waters relates to the contamination of drinking water, and harmful effects on ecosystems and costs for recreational activities, cultural values and commercial fisheries. After the introductory section, this paper examines the recent trends and...
The main objective of this study is the analysis of water pollution control policies of nitrogen within two-sector model. Agricultural and other land uses are sources of nonpoint source pollution. If only agriculture is controlled, the agricultural sector becomes less profitable and a part of the ...
efficiency of irrigation water by eliminating freshwater subsidies and encouraging developments in irrigation technologies; 2) giving farmers incentives to conserve water and soil resources; 3) controlling soil erosion; 4) protecting forests and other biological resources; and 4) preventing water pollution...
Water pollution is also caused by (有毒的) chemicals used in agriculture, which I we can not simply ignore. (根据汉语提示单词拼写) 相关知识点: 试题来源: 解析 poisonous 【详解】 考查形容词。句意:水污染也是由农业中使用的有毒化学品造成的,我们不能简单地忽视这一点。根据汉语提示可知,poison...
is the basic of our society in China.But at present,the scarcity of water resources and water pollution restrict the sustainable development of agriculture.So we should develop saving water agriculture,utilizing water resources rationally and develop planning rationally and laws of agriculture water.关键...
and semiarid areas of the world, where water reservoirs are limited and decreasing day by day, farmers are considering other alternative sources of water such as wastewater, seawater, rainwater, stormwater, and captured condensate. Hence, wastewater is the richest source of macro- and micronutrients...
Humans use water for three basic purposes: agriculture, industry, and domestic and municipal use (water for drinking, cooking, cleaning, and so forth). And the amount of water 1 to each person decreases as the population grows, 2 the possibility of water shortages. Water shortages will not ...
For the paddy fields in urbanizing area, it is almost impossible to prevent irrigation water from pollution. As to the right bank area of the Yodogawa R., land improvement works have been carried out, and arable land is recognized to be collective and highly productive. With this area, it...
【题文】Water pollution is also caused by ___ (有毒的) chemicals used in agriculture. (根据汉语提示单词拼写) 相关知识点: 试题来源: 解析 【答案】poisonous 【解析】【详解】考查形容词。句意:农业中使用的有毒化学物质也会造成水污染。根据汉语提示“有毒的”可知,此处应用形容词poisonous作定语修饰...