可持续发展和地下水资源的开采外文翻译

1、精选优质文档-倾情为你奉上可持续发展和地下水资源的开采外文翻译 本科毕业论文外文翻译外文题目:Sustainable development and groundwater resources exploitation出处:Environmental Geology 34 2/3 May 1998Springer-Verlag作 者:F. VillarroyaC. R. Aldwell Sustainable development and groundwater resources exploitationAbstractIn evaluating groundwater developme

2、nt both the positive and negative effects must be considered; otherwise biased conclusions may be reached. Only with equal concern for the needs of present and future generations, fair exchange of technology between countries and user involvement can sustainable groundwater development be achieved.

3、Examination of the use of the term aquifer overexploitation shows that there is no agreement on a single definition. In most cases it relates to the overuse of aquifers, but in other cases it is a planned overuse. In Spain, overexploitation is dealt with in the water act and implemented by the regul

4、ations that enforce that act. Experience has shown that without the cooperation of the water users themselves, good results are not obtained. Relevant education is urgently needed for the public and those decision makers responsible for determining the correct use of groundwater resources for the pr

5、esent and future generations.Key wordsGroundwater development , Aquifer overexploitationAre future groundwater resources at risk?To answer the question whether future groundwater resources are at risk, it is necessary to study both the quantity and quality aspects of groundwater. Water surface and g

6、roundwater is one of the most pervasive substances on Earth. The total volume of all water is about 1400 million km3, but only 2% is fresh water. The current rate of withdrawal is about 3500 km3/year, some 2100km3 for consumptive use, while 1400 km3 of wastewater is returned to rivers. Groundwater w

7、ithdrawals percent by sectors are: domestic, industry and agriculture Shiklomanov 1991. Margat 1991 stressed the need to improve water evaluation studies and quantified the amount of groundwater pumpage use in various countries. His list places the first fifteen countries as follows in km3 per year:

8、 India 150, USA 101, China 74.6,USSR former 45, Pakistan 45, Iran 29, Mexico 23, Japan 13.1, Italy 12.1, Germany 9.5, Saudi Arabia 7.4, France 7, Spain 6.3, Turkey 5 and Madagascar 4.9.The main threat to groundwater today is from point and diffuse source pollution. Therefore groundwater quality prot

9、ection is the key issue of groundwater resources policy in the industrialized countries. There are many sources of risk to groundwater, as discussed in the seminar on groundwater for the EU countries. RIVM and RIZA 1991 summarize the problems and threats to ground water resources. The current practi

10、ces in all the EU countries lead to a non-sustainable use of groundwater systems. The dramatic Dublin Statement emphasizes the unsustainable use of groundwater: “Human health and welfare, food security, industrial development and the ecosystems on which they depend, are all at risk, unless water and

11、 land resources are managed more effectively in the present decade and beyond than they have been in the past”.Groundwater resources exploitation and sustainable developmentWhat does sustainable development mean? In fact, we are asking if we are using wisely the resources needed for our life-support

12、 systemThe general conclusion of the seminar of ministers of the Environment of the EU countries , was that in many countries sustainable use of groundwater for drinking and other industrial, ecological, etc. functions is being threatened, especially in the agricultural and industrial core regions o

13、f the EU.Sustainable development must satisfy present needs without jeopardizing the ability of future generations to satisfy theirs. Overexploitation may take place during a period to allow better use of other resources, or while other technologies develop. Uncontrolled aquifer development easily l

14、eads to extensive aquifer exploitation and even to severe forms of overexploitation.Aquifer exploitation and sustainable developmentMargat 1993 speaks of Malthusian under exploitation in the case of inadequate use of an aquifer. In the opinion of Custodio 1993, “intensive aquifer exploitation is a s

15、ource of wealth, which fosters regional development and helps to guarantee a supply until other water sources can be economically developed”.Groundwater overexploitation has a series of negative consequences, such as increasing water cost, environmental changes affects on wetlands, salinity problems

16、, etc, reduction of other water sources already in use, water salinization and impairment of quality. The net result, however, may be either negative or positive. Positive results dominate at a regional level, but negative results are “news that trigger alarm bells and Malthusian forecstsm under the

17、 heading of overexploitation” Custodio 1993. On the other hand, intensive exploitation or overdraft are mainly points of view, referring to the consequences of intensive groundwater use, as perceived by environmentalists, the news media and the public in general, and place emphasis on the adverse or

18、 detrimental aspects.Therefore, in order to evaluate groundwater exploitation, not only negative effects but also positive ones have to be considered: “otherwise a biased appraisal may be reached. Normally, practice shows us that beneficial aspects dominate over detrimental ones in most practical si

19、tuations” Custodio 1993. According to this last author, the most serious cause of aquifer exploitation is ignorance of what is happening, and negligence in producing the data needed to evaluate the hydrogeological and economic situation correctly. Another harmful effect is the irresponsible overreac

20、tion of water authorities, especially when they are poorly informed or lack the scientific and technical skills to evaluate current problems correctly.The most important action is to solve problems as they appear and not waste time and energy in defining terms. Any exploitation of water resources th

21、at is not managed in an integrated way, taking into account the needs of the present and future generations, puts these resources at risk. Such development therefore is not sustainable.Regulatory issues related to aquifer overexploitation Aquifer overexploitationThe introduction lists several recent

22、 conferences which have highlighted overexploitation of aquifers. Within the conference proceedings, there is no single agreed definition of overexploitation. Spanish Legislation Royal Decree 849/1986 defines it in article 171.2 in the following terms: “An aquifer shall be considered to be overexplo

23、ited, or in danger thereof, if the reserves existing therein are being placed in immediate danger as a result of annual withdrawals that are in excess of, or very close to, the volume of the average annual recharge renewable resource or which give rise to serious deterioration in the quality of the

24、water”.According to Dijon and Custodio 1992, exceeding the limits of a renewable resource is not necessarily overexploitation. Conversely, staying within the limits of the same does not necessarily imply that all undesirable effects are being avoided and the beneficial effects enhanced.Llamas 1992 s

25、uggests either the elimination or a very restricted use of the term. In brief, he defines overexploitation “sensu stricto” as all extraction of groundwater which has effects physical, chemical, economic, ecological or social which are negative for human life, now or in the future. This type of overe

26、xploitation should be avoided for moral reasons. For exploitation based on the extraction of water greater than the average recharge of the aquifer he suggests the term “overexploitation sensu lato”.In the papers presented at the 23rd International Congress of IAH, it was stated that in many cases,

27、overexploitation is synonymous with in efficient exploitation of an aquifer Villarroya 1994; Villarroya and Rebollo 1993. During this congress numerous examples of “excessive exploitation” Custodio 1991 from all over the world were presented, and a summary can be found in Dijon and Custodio 1992.How

28、 can a lack of water resources affect land-use planning?As already described, the overexploitation of an aquifer has a marked influence on the planning and uses of land. Water users associations will play a very important role in regulating the exploitation of natural resources in general, and espec

29、ially of water resources. The participation of citizens through NGOs such as the water users associations has been shown to be very effective and, on many occasions, has alleviated serious problems concerning the exploitation of the water resources of a region. The associations have also been shown

30、to be effective as watchdogs to ensure that restrictions and regulations are being complied with. In this sense water authorities should treat them as allies and not opponents.In some situations groundwater has an strategic role at an international level. Some authors emphasize the important role gr

31、oundwater can play in securing at least a temporally independent supply. Good examples of this type of supply are found in the near-eastern countries. Margat 1992, distinguished three types of situation:1. Countries with renewable resources therefore independent of others: Lebanon, Yemen , The Cisjo

32、rdan and Magreb states.2. Countries without renewable resources which mine water; the Arab Emirates, Qatar, Oman, Syria and Saudi Arabia. Sooner or later, they will become dependent on other states.3. Countries which depend heavily on others for water; Egypt, Sudan, Syria, Iraq, Israel and Jordan. M

33、argat foresees a future of “exchanging water for oil” between these near-eastern countries, and the establishment of new relations forced by lack of water. Shamir 1993 goes even further and considers water to be an extremely important factor in peace negotiations. Thus, water is not only a valuable

34、resource but can also be an instrument in leading to peace or war? between neighbouring countries.ConclusionsIn the short term, groundwater quality problems will be more serious than those of quantity. Between now and the end of the century the implementation of measures to prevent pollution of grou

35、ndwater from diffuse and point sources will be the main issue.Besides the networks for quantity or quality control, a water users association can be effective in solving and watching over the correct working of proposed development plans.The definition of aquifer overexploitation is unclear and cont

36、roversial. In the majority of cases it refers to the incorrect use of an aquifer, in others it is planned. To evaluate groundwater exploitation not only positive effects have to be considered, but also negatives ones; otherwise a biased appraisal may be reached.Spanish legislation lays down the step

37、s to be taken once an aquifer is declared overexploited, giving special importance to the compulsory formation of a water users association and the preparation of a working plan for abstractions. At the same time the water authorities can de lineate protection zones with restrictions on the use of a

38、n aquifer. The application of this approach is controversial and can be of great political importance.Only with solidarity, subsidiarity and involvement can sustained groundwater development be achieved. Their practical application demands a parallel effort in education and information for the gener

39、al public. Scientific associations like the IAH and the NGOs should be involved in this process.译文:可持续发展和地下水资源的开采 摘要:在评价地下水开发时,无论是正面的还是负面的影响都必须加以考虑,否则得出的结论可能会具有片面性。只有相等地关注当前和今后几代人的共同需要,公平交换国家间的技术和广大用户的参与才能实现地下水的可持续发展。对含水层过度使用的调查表明,对其定义没有达成一致意见。在大多数情况下,他们关注过度使用的含水层问题,但在其他情况下,他们正计划着过度使用地下含水层。在西班牙,进行垦殖

40、需按照当时的水处理法和水使用实施条例,并严格按照条例实施。经验表明,如果没有用户的配合,不可能取得良好的效果。对市民进行有关教育是迫切需要的,对于那些决策者来说,他们需对自己定下的地下水资源使用政策的正确与否向当代和子孙后代负责。关键词 含水层地下水开发 过度开发未来的地下水资源的使用是否存在风险? 要回答未来的地下水资源是否受到威胁这个问题,有必要对地下水的存量和质量这两个方面进行研究。水(地表水和地下水),是地球上最普遍的物质之一。全球水总体积约.00万立方公里,但只有2%是淡水。而且当前以每年3500立方公里的速度消减,约2100立方公里的水用于日常使用,而1400立方公里的废水返回到河

41、流中。地下水的使用百分比按部门分为是:居民用水(8%),工业用水(23%)和农业用水(69%)。(1991年调查结果)。 Margat强调,要改善一些使用地下水泵的国家的水的使用数量和质量。他调查的前15个国家每年的使用量如下:印度150立方公里,美国101立方公里,中国74.6立方公里,前苏联45立方公里,巴基斯坦45立方公里,伊朗29立方公里,墨西哥23立方公里,日本13.1立方公里,意大利12立方公里,德国9.5立方公里,沙特阿拉伯7.4立方公里,法国7立方公里,西班牙6.3立方公里,土耳其5立方公里和马达加斯加4.9立方公里。 今天主要威胁地下水安全的是污染源扩散。因此,地下水水质的保

42、护是工业化国家的水资源政策的关键问题。许多对地下水风险的来源分析表明,对地下水所讨论的研讨会,大多为欧盟国家举办。 RIVM和RIZA(1991)总结了相关问题和威胁地下水资源来源。当前的做法是,所有欧盟国家的做法导致地下水系统不可持续的利用。更戏剧性的是,都柏林声明强调不可持续利用的地下水,那么人类的健康和福利,食品安全,工业发展和它们所依赖的生态系统都在风险,除非水和土地资源的管理在本世纪的几十年及以后的比他们已经在过去的更有效地利用。 二、地下水资源开发与可持续发展 可持续发展意味着什么?事实上,我们要考虑的仅仅是是否我们明智地使用了生活所需资源。 欧盟国家环境研究院研讨会讨论的结论是,

43、许多国家的饮用地下水和工业,生态等用水的可持续利用功能正受到威胁,尤其是在欧盟农业和工业的核心区域。 可持续发展必须能满足他们目前的需要而又不损害子孙后代的利益。过度开发可能会在一段时间内,更好地使用其他资源,或者其他技术的发展。不受控制的开发含水层容易导致更为广泛的含水层开采,甚至导致过度开发的严重形式。 三、含水层的开发与可持续发展 Margat(1993)谈到在对含水层的不足时,谈到了Malthusian地区的探明和开发的。而Custodio研究意见表明(1993年),集约开发含水层是财富的来源,它促进区域发展,并有助于保证水的供应,直到其他来源的到来以支撑当地形成经发达济体。 地下水的

44、过度开发具有消极后果,例如增加水的成本,环境变化,一系列的环境问题(如湿地,土壤盐度问题),盐渍化和水质量的损害其他水源减少的问题已经出现。最然而终的结果可能是积极的或是消极的。积极的成果,可能出现在区域水平上,但负面结果可能触发像过度开发Malthusian地区而导致严重后果那样的警钟。 另一方面,深度开发或透支的主要观点,指的是集约使用地下水,如提高环保认知,新闻媒体和广大公众的关注,并提高对不利或有害的方面的重视。因此,为了评价地下水的开采,不仅要考虑负面影响,而且还必须考虑积极因素,否则可能得出有偏见的评价。一般来说,实践经验告诉我们,最有利的方面起决定作用。根据作者的观点,对含水层开采最严重的后果源于盲目的开发,并疏忽了进行生产需要的水文地质条件和经济形势的正确数据。另一种有害的后果是不负责任的向水力行政主管部门过度反应消极因素,特别是当他们不熟悉或缺乏必要的科学技术和技能以正确地评估当前的问题之前就将问题反映给上级部门。最重要的行动是为了解决问题,所以也就没有必要在下定义方面浪费时间和精力。任何水力资源不是以综合的方式管理资源的开发的,同时只考虑到目前和未来几代人的需要,会把水资源置于危险之中。那么,这种发展就是不可持续的发展,摒弃要。 四、有关含水层过度开采的监督管理问题 引言列出了几个最近关于含水层的过