每年的節水日是3月22日，至3月28日，它的意義在於告訴人們節水的重要性。
地球的儲水量是很豐富的，***有14.5億立方千米之多。但是其中海水卻占了97.2%，陸地淡水僅占2.8%，面與人類生活最密切的江河、淡水湖和淺層地下水等淡水，又僅占淡水儲量的0.34%。更令人擔憂的是，這數量極有限的淡水，正越來越多地受到汙染。據科學界估計，全世界有半數以上的國家和地區缺乏飲用水，特別是經濟欠發達的第三世界國家，目前已有70％，即17億人喝不上清潔水，世界已有將近80％人口受到水荒的威脅。我國人均淡水為世界人均水平的四分之壹，屬於缺水國家。，全國已有300多個城市缺水，已有29％的人正在飲用不良水，其中已有7000萬人正在飲用高氟水。每年因缺水而造成的經濟損失達100多億元，因水汙染而造成的經濟損失更達400多億元。
可怕的數據表明：水資源短缺成了當今世界面臨的重大危機。因此，保護和更有效合理利用水資源，是世界各國政府面臨的壹項緊迫任務。那麽，怎樣才能保護和更有效地合理利用水資源呢？從環境角度來說，最完善的措施是攔水和調水。改變水資源的時空分布。但這只是壹個方面，而對於人類來說，更重要的是註重節約用水，提高水資源利用率：在工業方面提倡節水產業，控制汙染物的排放，加強廢水處理；在農業方面應采用先進的灌溉方式（噴灌、滴灌）等。水是生命的基礎，它不僅關系到人類生活的質量，還影響到人類的生存能力。所以增強水的危機意識，珍惜水，節約水，保護水資源，才是當務之急。
為此，我們國家制定了相應的節水措施，
我國國家建設部決定每年6月份的第二周作為全國城市節約用水宣傳周，目的是認真貫徹《中華人民***和國水法》和國務院關於《城市節約用水管理規定》，從而增強人們計劃用水，節約用水的觀念。
如何節水呢？有以下幾種方法：
1、節水為榮——隨時關緊水龍頭
2、壹水多用——充分利用每壹滴水
3、阻止滴漏——檢查維修水龍頭
4、監護水源——保護水源就是保護生命
5、少用洗滌劑——減少水汙染
6、植樹造林——涵養水源
7、積極宣傳——讓每個人都投入到節水的“戰鬥”中
當然，這是遠遠不夠的，但是這些方法是每壹個人都能夠做到的。
我們都希望生活在壹個充滿鳥語花香的世界裏，而水是萬物之需。所以讓我們從現在開始，維護整個地球，維護整個世界。節約水資源，保護全世界！
Conservation of water resources, protection of the world
Day is an annual saving of March 22 to March 28, it is about to tell people the importance of saving water.
Earth's reservoir of water is very rich, there were as many as 1.45 billion cubic meters. But accounts for 97.2% of sea water, land accounted for only 2.8% of fresh water, surface and the closest of human life in rivers and freshwater lakes and shallow groundwater, such as fresh water, and only 0.34% of fresh water reserves. What is even more worrying is that a very limited quantity of fresh water are increasingly polluted. According to the scientific community estimates that more than half of the world's countries and regions, the lack of drinking water, especially in economically underdeveloped Third World countries, there are now 70 percent, or 17 million people not to drink clean water, the world has nearly 80 % of the population by the water
Threat. China's per capita fresh water for a quarter of the world's average, are water-scarce countries. National has more than 300 cities short of water, 29% of people are drinking bad water, which has 70 million people are drinking high fluoride water. Due to lack of water caused by the annual economic losses amounting to more than 100 billion yuan, due to water pollution caused by the economic loss of more than 400 million.
Data indicate that terrible: water shortages facing the world today has become a major crisis. Therefore, more effective protection and rational utilization of water resources, is facing the governments of the world an urgent task. So, how can we more effectively the protection and rational utilization of water resources in this? From an environmental point of view, the most complete and the measure is water diversion Water Curb. Changes in spatial and temporal distribution of water resources. But this is only one aspect, and for humans and, more importantly, pay attention to water conservation, improve the utilization of water resources: to promote water saving in the industrial sector industries, to control the emission of pollutants, strengthen waste water treatment; in agriculture should be adopted
With advanced irrigation methods (spray irrigation, drip irrigation) and so on. Water is the basis of life, it is not only related to the quality of human life, but also affect the survival of mankind. Therefore, to enhance awareness of water crisis, value of water, saving water, protection of water resources is imperative.
To this end, our country has developed the corresponding water-saving measures,
Ministry of Construction of China's decision in June of each year the second week of the city to save water as part of the national awareness week aims to seriously implement the "People's Republic of China Water Law" and the State Council on the "management of urban water conservation", in order to enhance the water plan, water conservation concept.
How do water-saving? There are several ways:
1, water-saving proud of - to keep the tap closed
2, a multi-purpose water - make full use of every drop