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首页> 外文期刊>Journal of African Earth Sciences >Ecologic and economic perspectives for sustainable irrigated agriculture under arid climate conditions: An analysis based on environmental indicators for southern Tunisia
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Ecologic and economic perspectives for sustainable irrigated agriculture under arid climate conditions: An analysis based on environmental indicators for southern Tunisia

机译：干旱气候条件下可持续灌溉农业的生态和经济观点：南突尼斯南部环境指标分析

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摘要

In arid hot dry areas, of southern Tunisia, the intense agricultural development of more than 200,000 tons/year relies on the exploitation of groundwater resources. The scarcity of freshwaters intensifies the abstraction from deep high mineralized groundwater resources to maintain the eco-social security of the local population. However, the emerging impacts of the used water quality elicit the public concern for the likely effects on the sustainability of the agro-systems regarding the climate conditions and the farming practices. Thus, this paper attempts to examine the evolution of irrigation water quality and its relative impacts on the fragile balance between ecosystem healthy functioning and sustainable services and the anthropogenic activities namely farm households and irrigation techniques.The outcome of this review indicates that the amplitude of the progressive land degradation is amplified by the inefficient water management. These cumulative impacts induce incurable effects leading to the progressive fertility loss of agricultural lands (about 1.25 ha/yr). The used agro-ecological indicators show that the basin irrigation technique, water distribution management and individual farming practices lead to increasing loss of productivity gain. In these agro-based areas, emergency institutional and political rehabilitation efforts are required to reorganize farm systems and to limit the unintended impacts for securing sustainable eco-environmental services.
机译：在突尼斯南部干旱的干旱地区，大约20万吨/年的强烈农业发展依赖于地下水资源开采。淡水的稀缺性加剧了深度高矿化地下水资源的抽象，以维持当地人口的生态社会保障。然而，使用的水质的新兴的影响引出了公众关注的对可能影响关于气候条件和农业惯例的农业系统的可持续性。因此，本文试图研究灌溉水质的演变及其对生态系统健康运作和可持续服务与人为活动之间脆弱平衡的相对影响以及农户和灌溉技术。本综述结果表明该综述表明幅度的幅度通过低效的水管理扩增逐步的土地退化。这些累积影响促使导致农业土地逐步生育损失的可治区效应（约1.25公顷/年）。使用过的农业生态指标表明，盆地灌溉技术，水分配管理和个人农业实践导致生产力增益的损失增加。在这些基于农业的领域，需要紧急机构和政治康复工作来重新组织农业系统，并限制抵御可持续生态环境服务的意外影响。

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  • 来源
    《Journal of African Earth Sciences》 |2021年第5期|104134.1-104134.13|共13页
  • 作者

    Besser Houda; Dhaouadi Latifa; Hadji Riheb; Hamed Younes; Jemmali Hatem;

  • 作者单位

    Fac Sci Gabes Dept Earth Sci Res Unit Geosyst Georesources & Geoenvironm UR3G City Campus Erriadh Zirig Gabes 6072 Tunisia|Int Assoc Water Resources Southern Mediterranean Gafsa Tunisia;

    Reg Ctr Oasis Res Degueche Tozeur Tunisia;

    Int Assoc Water Resources Southern Mediterranean Gafsa Tunisia|Farhat Abbas Univ Inst Architecture & Earth Sci Dept Earth Sci Setif 19000 Algeria;

    Int Assoc Water Resources Southern Mediterranean Gafsa Tunisia|Univ Gafsa Fac Sci Gafsa Lab Applicat Mat Environm Water & Energy LAMEEE City Campus Sidi Ahmed Zarroug Gafsa 2112 Tunisia;

    Univ Mannouba Mannouba Tunisia;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Water quality; Land degradation; Economic security; Ecosystem services; Agriculture sustainability;

    机译：水质;土地退化;经济安全;生态系统服务;农业可持续性;

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