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分析耀州区水资源状况和实施农业节水灌溉的重要性,从工程措施和非工程措施两方面阐述了实施农业节水灌溉技术采取的几种主要措施和要达到的目的。 相似文献
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民勤县地处石羊河流域下游,位于国家“两屏三带”生态安全战略格局中的“北方防沙带”中心地带,是河西地区重要的生态屏障和战略通道,在甘肃乃至全国生态安全中都具有不可替代的重要地位,但由于水资源的严重匮乏,限制了经济发展和生态建设.民勤是农业大县,全县节水的重点在农业,难点在农业,潜力也在农业,而农业节水关键在田间,挖掘农田节水潜力的最佳措施是推广以微灌为主的高效节水灌溉技术.只有实施以高效节水灌溉为主的高效农业、转换农田用水用于防沙治沙和生态治理,才能保证民勤这一生态屏障的可持续发展. 相似文献
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农业节水潜力巨大,搞好农业节水,对促进水资源的高效持续利用、改善农民生产生活条件、推动新农村建设具有重要意义。为进一步促进甘肃省金昌市农业节水,需探讨农业节水的机制建设和体系建设。 相似文献
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“九五”期间以来,我国农业节水取得了较快发展,但与水资源短缺的形势相比,与国民经济和社会发展的要求相比,农业节水的发展速度和规模仍然是滞后的。本文阐述了农业节水的战略地位和作用,具体分析了农业节水的发展现状和问题,在借鉴国外有关经验的基础上,提出了今后10年农业节水的任务目标和全面推进农业节水发展的战略对策和措施。 相似文献
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水问题和农业问题都是全球性问题,对人类生存与发展具有极端重要的意义。以水资源的可持续利用来保障农业安全,是世界各国共同面临的紧迫任务。水资源数量的短缺和质量的恶化已成为我国现代化建设和持续发展危机性的重大问题。因此,为了应对日趋严重的缺水形势,建立节水型社会,特别是发展节水农业是一种必然选择,应采取有效措施加速发展节水农业,建立节水型社会。 相似文献
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大力发展节水农业是我国近年来构建节水型社会的主要战略之一。然而,由于西北地区、特别是西北民族地区水资源的特殊区情和功能,在这些地区发展节水农业的模式不能与内地雷同,而应该有其特殊的运行模式。根据西北民族地区特殊的水资源情况和发展需要,应该选择"保水农业"的发展模式,以建立水资源的良性循环系统为目标,把西北民族地区建设成我国重要的清洁水资源保护区,这比单纯地搞节水农业要重要得多。 相似文献
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The situation with currency markets in the CIS countries in 2009 was characterized by considerable fluctuations in national
currencies against the background of the major problems in the financial sector, economic recession in most countries, slowing
inflation in the consumer market, and deflation in prices of manufactured goods. 相似文献
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Carlos Gradín Finn Tarp 《The South African journal of economics. Suid-afrikaanse tydskrif vir ekonomie》2019,87(2):180-199
We investigate the gender employment gap in the expanding non‐subsistence sector of the economy in Mozambique, a country still characterized by a large subsistence agricultural sector. We show evidence that the gender gap has widened over time and we identify two structural factors strongly associated with it. One factor is the still relatively lower level of female human capital, with less attained education, as well as literacy and Portuguese proficiency rates. The lower conditional employment probabilities of married women, as compared with men, is the other factor. These findings point at expanding women´s education and facilitating the access of married women to the emerging labour market as the most effective ways of achieving a more inclusive growth path that does not leave women behind. 相似文献
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G. M. Boissevain 《De Economist》1917,66(1):433-439
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Z N Mfono 《Development Southern Africa》1989,6(4):495-497
Women frequently constitute the largest section of the adult population in rural communities of developing areas. For this reason, rural development can only take place if women at grassroots level are drawn to the centre of the arena, and their traditional concerns recognised and used as the starting point. In Venda, this approach is showing some positive results. 相似文献
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Hysteresis in unemployment in the Netherlands 总被引:2,自引:2,他引:0
J. J. Graafland 《De Economist》1988,136(4):508-523
Summary The Dutch labour market situation in the eighties can be characterized by the hysteresis phenomenon, i. e. a rising natural rate of unemployment as a result of the rise of actual unemployment in the past. It appears that the hysteresis phenomenon is more important in The Netherlands than in France and the United States and as relevant as in Germany and the United Kingdom. Because of the steep rise of unemployment in The Netherlands the natural rate of unemployment may have risen more than in Other European countries. As a consequence, the wage depressing effect of the current high unemployment rate has diminished rapidly.I thank J.C. Siebrand, D.P. Broer and C.B. Mulder for helpful comments on an earlier version of this paper. 相似文献
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5月,主城气温持续走高,春天的脚步渐远,夏天悄然而至.而此时的石柱黄水春意正浓,在那里,依然可以清晰地聆听到春天的花语,即使在一米阳光之内,也能感受到春天的美丽.
踏青赏花揽春色,风景这边独好
以“万亩森林、万亩石芽、万亩草场、万亩火棘”四大景观著称的千野草场,这时候总是澄澈的蓝天陪衬着悠悠白云,碧绿的草地映衬着逍遥牛羊.这里不但有北国草原的粗犷,亦有南方草地的妩媚. 相似文献