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Analyzing Water Resources Management Issues Along the US Midwest Region 美国中西部地区水资源管理问题分析
Pub Date : 2022-04-29 DOI: 10.5923/j.re.20221202.01
E. Merem, Y. Twumasi, J. Wesley, D. Olagbegi, M. Crisler, C. Romorno, M. Alsarari, P. Isokpehi, A. Hines, G. Hirse, G. S. Ochai, E. Nwagboso, S. Fageir, S. Leggett, J. Offiah, S. Emeakpor
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引用次数: 0
Assessing the Risks from Changing Climate in South Texas Region 评估南德克萨斯地区气候变化的风险
Pub Date : 2021-08-03 DOI: 10.5923/j.re.20211101.03
E. Merem, Y. Twumasi, J. Wesley, D. Olagbegi, M. Crisler, C. Romorno, M. Alsarari, P. Isokpehi, M. Alrefai, S. Ochai, E. Nwagboso, S. Fageir, S. Leggett
The yearly dose of havoc unleashed from the overwhelming forces of changing climatic parameters on coastal communities does not differentiate among boundaries when inflicting damages of any kind. For that, in the last several years, climate risks continue to plague the southern portion of Texas. Give its location, the South Texas’ region, and adjourning areas along the Gulf of Mexico as a hub for speculative capital and natural resource extraction face exposures from the menace of tropical storms of immense scales. The ferocious pressures from heavy storms in these settings are such that, they often leave in their wake indelible footprint on the surrounding ecology. This comes with extreme impacts on both the natural and built-up environments particularly around big cities holding vital infrastructure crucial in economic development and productive capacity of petroleum and natural resource assets of South Texas. While the situation is further compounded by the region’s propensity to natural disasters and the fragile coastal ecosystem close to enormous network of large-scale energy infrastructure made up of oil and gas fields, refineries, and pipelines. The presence of petrochemical complexes, thriving natural resource base, transportation corridors, burgeoning urban centers, and neighborhoods often at the receiving end of recurrent climate hazards over time, increases the inherent risks, due to environmental, physical, and socio-economic and policy factors located within the larger regional ecosystem. Yet, current studies in climate change have done very little in assessing the situation in south Texas region with the latest advances in geospatial information technology under a mix scale orientation. Considering these voids in research, this paper assesses changing climate impacts in the South Texas region using secondary data analyzed with descriptive statistics and (GIS) Geographic Information System under a mix scale method. With emphasis on the issues, trends, impacts, factors, and mitigation measures. The results revealed widespread occurrence of climatic hazards in the study area with visible impacts in the form of heavy floods from storms leading to environmental damages. This involves also risks to petroleum amenities and displacement of citizens and the loss of properties. The GIS mapping of the trends pinpointed clusters of heavy presence of stressors and degraded amenities dispersed across space over time with linkages to socio-economic, physical, and ecological elements. To remedy the situation, the paper proffered numerous solutions ranging from the adoption of effective policy, growth management, monitoring, the design of a regional climate information systems and education of the public.
气候参数变化的压倒性力量每年对沿海社区造成的破坏,在造成任何形式的损害时,都不会区分边界。因此,在过去的几年里,气候风险继续困扰着德克萨斯州的南部。鉴于其地理位置,南德克萨斯州地区以及毗邻墨西哥湾的地区作为投机资本和自然资源开采的中心,面临着巨大规模热带风暴的威胁。在这些环境中,暴风雨带来的巨大压力往往会在周围的生态环境中留下不可磨灭的足迹。这对自然环境和建筑环境都产生了极端影响,特别是在大城市周围,这些城市拥有重要的基础设施,对南德克萨斯州的经济发展和石油和自然资源资产的生产能力至关重要。然而,该地区易受自然灾害影响,沿海生态系统脆弱,靠近由油气田、炼油厂和管道组成的大型能源基础设施网络,使情况进一步复杂化。随着时间的推移,石油化工综合体、蓬勃发展的自然资源基础、交通走廊、新兴的城市中心和社区往往处于周期性气候灾害的接收端,由于位于更大区域生态系统内的环境、物理、社会经济和政策因素,增加了固有风险。然而,目前的气候变化研究在混合尺度取向下利用地理空间信息技术的最新进展评估南德克萨斯地区的气候变化情况方面做得很少。考虑到这些研究空白,本文采用混合尺度方法,利用描述性统计和GIS地理信息系统分析的二次数据,对南德克萨斯地区的气候变化影响进行了评估。重点是问题、趋势、影响、因素和缓解措施。结果表明,气候灾害在研究区广泛发生,影响明显,主要表现为暴雨引起的特大洪水对环境的破坏。这还涉及到石油设施、公民流离失所和财产损失的风险。地理信息系统的趋势图精确地指出,随着时间的推移,压力源和退化的便利设施分散在整个空间中,与社会经济、物理和生态因素存在联系。为了纠正这种情况,该文件提供了许多解决方案,包括采用有效的政策、增长管理、监测、设计区域气候信息系统和公众教育。
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引用次数: 0
Effect of Foliar Application of Manganese, Zinc and Copper on Growth and Yield of Chilli (Capsicum annum. L) 叶面施用锰、锌、铜对辣椒生长和产量的影响。L)
Pub Date : 2020-12-07 DOI: 10.5923/j.re.20201003.01
S. Thennakoon, K. Renuka, M. Amarasekara, J. Jayawardhane
Chilli ( Capsicum annum L.) is an important spice crop grown in Sri Lanka. Deficiency of micronutrients, especially Mn, Zn and Cu reported in chilli growing areas has affected adversely on chilli production. Therefore, a study was conducted to evaluate the effect of foliar application of Mn, Zn and Cu on growth and yield of chilli grown in Reddish Brown Earth soils (Rhodustalfs), in dry zone, Sri Lanka. Seven treatments were tested in a greenhouse as pot experiment. Nitrogen, phosphorus and potassium were added into all seven treatments. Manganese Zn and Cu were added separately as foliar application for three treatments. One treatment had all three elements and control treatment had only N, P and K but no any added elements. Since all micronutrients were added as their sulfate form, last two treatments had S with N, P and K to assess the effect of S on plant growth. Copper with N, P, K added treatment showed significantly higher growth and yield compared to other treatments. It showed about 25% yield increment compared to control treatment. Therefore, it can be concluded that application of Cu is beneficial to obtain a better yield in chilli in Reddish Brown Earth Soils (Rhodustalfs). However, further field studies are needed to confirm findings.
辣椒(Capsicum annum L.)是斯里兰卡重要的香料作物。据报道,辣椒产区微量营养元素特别是锰、锌和铜的缺乏对辣椒生产产生了不利影响。为此,研究了在斯里兰卡干旱地区红棕壤(Rhodustalfs)土壤上施用锰、锌和铜对辣椒生长和产量的影响。在温室盆栽试验中对7个处理进行了试验。7个处理均添加氮、磷、钾。3个处理分别叶面施用锰、锌和铜。其中一个处理全部添加了3种元素,而对照处理只添加了N、P、K,不添加任何元素。由于所有微量元素均以硫酸盐形式添加,最后两种处理均以氮、磷、钾为主,以评价S对植物生长的影响。氮、磷、钾加铜处理的生长和产量显著高于其他处理。与对照处理相比,产量增加约25%。综上所述,铜的施用有利于红棕壤辣椒产量的提高。然而,需要进一步的实地研究来证实这些发现。
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引用次数: 2
Hevea Culture - A Potential Economic Growth for the State of Rio de Janeiro 橡胶树文化——里约热内卢州潜在的经济增长点
Pub Date : 2016-12-01 DOI: 10.5923/J.RE.20160606.01
H. Corrêa, R. Alves, Marco Antonio Gaya de Figueiredo, C. Furtado
In a world where we discuss sustainability as the central axis of development, it is essential that a country like Brazil takes responsibility to adopt new technologies that contribute to the this sector. Taking advantage of the need that the country has to ally economic growth with social inclusion and maintenance of natural resources, the adoption of technologies that reduce the emission of greenhouse gases is promising. In this sense, stimulate the hevea culture appears to be an important allied in the fight to the concentration of CO2 in the atmosphere, since it allows its uptake by the trees. The retaken of this vegetal exploitation in Brazil (specially by the State of Rio de Janeiro), taking the social inclusion as a guiding policy, can be crucial to the fight against poverty and unemployment. This exploitation will allow to create conditions for small farmers to participate in the production chain of natural rubber, raw material extracted from rubber trees.
在一个我们把可持续性作为发展的中轴线来讨论的世界里,像巴西这样的国家必须承担起责任,采用有助于这一部门的新技术。利用该国必须将经济增长与社会包容和自然资源保护结合起来的需要,采用减少温室气体排放的技术是有希望的。从这个意义上说,刺激橡胶树培养似乎是对抗大气中二氧化碳浓度的重要盟友,因为它允许树木吸收二氧化碳。在巴西(特别是里约热内卢州),将社会包容作为一项指导政策,重新开始这种植物开发,对消除贫困和失业至关重要。这种开发将为小农参与天然橡胶生产链创造条件,从橡胶树中提取原料。
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引用次数: 0
Technical Efficiency as a Sustainability Indicator in Continuum of Integrated Natural Resources Management 技术效率:自然资源综合管理连续体中的可持续性指标
Pub Date : 2013-12-01 DOI: 10.5923/J.RE.20130306.04
A. Hepelwa
To understand variables that link the welfare, livelihood and the watershed is crucial when instituting the integrated watershed management. This requires having indicators to show changes of the condition of the welfare, livelihoods and watershed resources. However, the combination of livelihoods and welfare of the local communities who depend largely on watershed resources for income, food, energy and shelter have not been adequately considered elsewhere. This results to the imbalance between the human development and the conservation priorities when implementing watershed management policies. The aim of this paper is to present the technical efficiency indicator (TEI) constructed from socioeconomic and watershed related variables. The stochastic frontier analysis (SFA) is employed to construct the TEI. The novelty in the current study is its ability to combine socioeconomic and biophysical information to obtain a sustainability indicator of both the natural resource supporting people’s livelihoods and the welfare of people. The construction of TEI fills the knowledge gap on how to achieve the mutual balance between human development and conservation objectives in the natural resource management arena. Study findings are that there is significant household dependence on the watershed resources. This implies that watershed resources have a greater role to play on the welfare of the communities due to existing direct relationship between crop cultivation and the watershed environment. Therefore there is a need to take into account the sustainability of the watershed resources when setting up development policy in the study area.
在实施流域综合管理时,了解联系流域福利、生计和流域的变量是至关重要的。这就需要有指标来显示福利、生计和流域资源状况的变化。但是,其他地方没有充分考虑到主要依靠流域资源获得收入、粮食、能源和住房的当地社区的生计和福利。这导致在实施流域管理政策时,人类发展与保护优先事项之间的不平衡。本文的目的是提出由社会经济和流域相关变量构建的技术效率指标(TEI)。采用随机前沿分析(SFA)构建TEI。本研究的新颖之处在于它能够将社会经济和生物物理信息结合起来,获得支持人们生计和人们福利的自然资源的可持续性指标。TEI的构建填补了如何在自然资源管理领域实现人类发展与保护目标之间相互平衡的知识空白。研究结果表明,农户对流域资源的依赖程度较高。这意味着,由于作物种植与流域环境之间存在直接关系,流域资源对社区福利的作用更大。因此,在制定研究区开发政策时,有必要考虑流域资源的可持续性。
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引用次数: 11
Analytical Hierarchy Process Application in Urban Sustainability Indicators Prioritization 层次分析法在城市可持续发展指标优选中的应用
Pub Date : 2013-01-01 DOI: 10.5923/S.RE.201309.01
F. L. Michael, Z. Z. Noor, N. H. Zardari, M. F. Meza
Deforestation has an impact on the quality of water flo wing through the watershed and alters the discharge, chemical and physical properties of water. This paper presents the effect of deforestation on water quality, in particular on physical and chemical characteristics of water and evaluates the community based watershed management s chemes in Buyhang micro watershed. The quality of water is assessed on the basis of laboratory analysis of various parameters by using weekly grab samp ling technique fro m three alternative land uses and in depth assessment of farmers' needs, priorities, an d conservation practices. The farmers' primary concerns are food security and sustained productivity. Soil erosion is not seen as a problem in the Cienda commun ity and currently still seems to reflect stable conditions. The perception and appreciation of people towards the function of forest ecosystems is limited. People are continuously changing the forest area for abaca plantations, rice fields, and other agricultural crops in very steep slopes. There is only 0.97 ha of refo restation activity in the watershed. Most people judge the quality of water by its aesthetic properties of colour, taste, odour and turbidity. Except the agricultural water samp les, the other two samp les appeared colourless through visual observations. The water fro m undisturbed forest area is palatable and all are free o f odour. The pH values of the water samples ranged with in standard values. Total hardness was trace except one sample fro m agricultural land. Turbidity was found to be less and ranging from 5 to 22 FTU. Sediment is recorded fro m agricultural water samples and higher during peak flow. The highest concentrations of PO4 - were measured fro m the forest water samples. The mean Ca ++ concentrations ranged from 10 to 11.6 mg/ L. There is no significant difference between the three water samples in Mg ++ concentration. Total K + was also found below 6.6 mg/L. Na concentrations were ranging from 6.5 to 8.7 mg/ L. Generally, the results from this study show no significant difference between waters from forest and deforested area in terms of chemical analysis but clear contrast in physical properties. The nutrient concentration of water fro m the forested site is relatively higher and untypical in the case of n itrate concentratio ns than deforested and agricultural water samples.
砍伐森林对流经流域的水质有影响,并改变了水的排放、化学和物理性质。本文介绍了森林砍伐对水质的影响,特别是对水的物理和化学特征的影响,并评价了基于社区的小流域管理方案。水质的评估是在实验室对各种参数进行分析的基础上进行的,方法是使用每周从三种可供选择的土地用途中抽取样本的技术,并对农民的需求、优先事项和保护措施进行深入评估。农民最关心的是粮食安全和持续的生产力。在Cienda社区,土壤侵蚀不被视为一个问题,目前似乎仍然反映出稳定的条件。人们对森林生态系统功能的认识和认识是有限的。人们不断地改变森林面积,在非常陡峭的山坡上种植甘蔗种植园、稻田和其他农作物。流域植被恢复活动面积仅为0.97公顷。大多数人通过水的颜色、味道、气味和浑浊度等美学特性来判断水的质量。除农用水样外,其余两种水样目测呈无色。来自未受干扰的森林地区的水是可口的,所有的水都没有气味。水样的pH值在标准值范围内。除1份农业用地样品外,其余样品均痕量测定总硬度。浑浊度较低,范围为5至22 FTU。泥沙记录来自农业水样,在水流高峰时更高。森林水样中PO4 -的浓度最高。Ca ++的平均浓度在10 ~ 11.6 mg/ l之间,3个水样的mg ++浓度差异不显著。总K +也低于6.6 mg/L。Na浓度范围为6.5 ~ 8.7 mg/ l,总体而言,本研究结果表明森林水与毁林水在化学分析上无显著差异,但在物理性质上有明显差异。与毁林和农业水样相比,来自森林站点的水的营养物质浓度相对较高,在硝酸盐浓度的情况下不典型。
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引用次数: 8
Mechanisms of Groundwater Pollutants Transport in Tulkarm Area / Palestine Tulkarm地区/巴勒斯坦地下水污染物运移机制
Pub Date : 2012-12-01 DOI: 10.5923/J.RE.20120206.06
S. Khayat, A. Marei, Basel Natsheh, N. Abu-Khalaf
This study aims at investigating the mechanisms of pollutants transport based on geological formations. The study classifies two sub-aquifers groups. The first group are wells which dogged within Senonian Abu Dis format ion, and are mostly used extensively for municipal purposes. The second group are wells dogged with the most top Jerusalem-Hebron formation o f Tu ronian age and mostly used frequently for irrigation purposes. The first group shows a high deteriorated water quality with ionic mo lar ratios bears the ratios fro m Wastewater stagnant in adjacent Zomar stream. The stream bed lays directly over Jerusalem formation wh ich pro motes the pollutant transport directly to the uptake zone. Ho wever, the effect of such stagnant become less in dilut ion time of winter. Septic tanks surrounded these wells are constructed within the top 5 meters of Senonian formation, which mean that the leakage fro m septic tanks is not that ease to significantly affect the groundwater quality. The second group are mostly subjected to direct rainfall infiltration this can be indicated through the higher Sodiu m values which are related to the ion exchange through limestone profile. The results emphasize the need for further procedures to mit igate the pollutants plume migration fro m Wadi to the surrounded environment.
本研究旨在探讨基于地质构造的污染物运移机制。该研究将地下含水层分为两类。第一组是塞诺尼亚Abu Dis格式内的井,大多广泛用于市政目的。第二类是带有图罗尼亚时代耶路撒冷-希布伦最上层地层的井,主要用于灌溉目的。第一组显示了一个高度恶化的水质,其离子摩尔比与邻近Zomar溪流停滞废水的比例相当。河床直接位于耶路撒冷地层之上,促进了污染物直接向吸收区运移。然而,这种停滞的效果在冬季稀释时间变得不那么明显。这些井周围的化粪池建在Senonian地层顶部5米的范围内,这意味着化粪池的泄漏并不容易明显影响地下水质量。第二类主要受到直接降雨入渗的影响,这可以通过较高的钠离子m值来表明,钠离子m值与通过石灰岩剖面的离子交换有关。结果强调需要采取进一步的措施来减少污染物从Wadi向周围环境的迁移。
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引用次数: 4
Application of Principal Component Analysis for Developing Water Quality Index for Selected Coastal Areas of Alexandria Egypt 主成分分析在埃及亚历山德里亚选定沿海地区水质指标制定中的应用
Pub Date : 2012-12-01 DOI: 10.5923/J.RE.20120206.08
S. Fathy, F. Hamid, M. Shreadah, L. Mohamed, Mohamed G. El-Gazar
This paper presents water quality analysis of three sites located in the coastal area of Alexandria, Egypt. Principal co mponent analysis (PCA) approach was used to develop water quality index (WQI). PCA results revealed that Nubaria and Umou m drains were the most highly polluted samp ling sites and supposed to be hotspots of environ mental pollutants due to industrial, agricultural and do mestic wastes disposed and eluted compared to Kilo 21 d rain which could be considered the control site for the present study. The findings with the help o f principal co mponents suggested are being of great importance in establishing guidelines for the ad ministration of water sources and the improvement of water quality in these areas.
本文介绍了位于埃及亚历山大港沿海地区的三个地点的水质分析。采用主成分分析(PCA)方法编制水质指数(WQI)。主成分分析结果表明,Nubaria和Umou m是污染最严重的采样点,与Kilo 21 d雨水相比,由于工业、农业和生活废物的处理和洗涤,它们可能是环境污染物的热点,可以考虑作为本研究的控制点。在所建议的主要成分的帮助下得出的结论对于制定水源管理准则和改善这些地区的水质具有重要意义。
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引用次数: 26
Can Bio-Ethanol be Regarded as Carbon Neutral? Assessment of the Effect of Reducing Oil Use 生物乙醇可以被视为碳中性吗?减少石油使用的效果评估
Pub Date : 2012-12-01 DOI: 10.5923/J.RE.20120205.07
M. Yamashita*, Hiroyuki Aimoto
The present study examined the efficacy of the use of bio-ethanol as an environmental protection measure by conducting quantitative assessment of the amount of CO2 emitted in its lifecycle, including the process of growing plants used as materials for bio-ethanol production. As a conclusion, it was suggested that the use of bio-ethanol does not reduce CO2 emissions, as it stands now, because a large amount of energy is required to produce it, i.e., bio-ethanol production consumes fossil fuels in a large quantity and emits a massive amount of CO2. Actually, the use of bio-ethanol varieties made from corn or wood as an alternative fuel to gasoline increased CO2 emissions. Furthermore, the production and use of bio-ethanol was less cost-effective than other CO2 reduction measures. This means that, in terms of both its effectiveness and economic efficiency, bio-ethanol would not contribute to promoting Japan's "Biomass Nippon Strategy" and accomplishing its primary goal, the "prevention of global warming".
本研究通过定量评估生物乙醇在其生命周期内的二氧化碳排放量,包括作为生物乙醇生产原料的植物生长过程,来检验生物乙醇作为一种环境保护措施的有效性。综上所述,根据目前的情况,使用生物乙醇并不能减少二氧化碳的排放,因为生产生物乙醇需要大量的能源,即生产生物乙醇消耗大量的化石燃料,排放大量的二氧化碳。实际上,使用由玉米或木材制成的生物乙醇作为汽油的替代燃料增加了二氧化碳的排放。此外,与其他二氧化碳减排措施相比,生物乙醇的生产和使用成本效益较低。这意味着,就其有效性和经济效率而言,生物乙醇将无助于推动日本的“生物质日本战略”和实现其主要目标,即“防止全球变暖”。
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引用次数: 1
Food and Water Security in the Arab World and Sudan: Status and Threats 阿拉伯世界和苏丹的粮食和水安全:现状和威胁
Pub Date : 2012-12-01 DOI: 10.5923/J.RE.20120206.03
Nagat Elmulthum, Lubna Mohamed Musa, Hanan OsmanAli
Emphasizing the importance of food and water security, this study aimed at studying and analysing food and water security situation in the Arab World with special emphasis on Sudan. The Study employed descriptive statistics using secondary data collected fro m various sources. Results obtained indicated that food consumption gap in the Arab World increased by 24% in 2010 co mpared to 1973. Results obtained indicated that the per capita available water in the Arab World decreased from 3430 m 3 in 1960 to 1250m 3 in 2000 to 876 m 3 in 2010. A further decline in per capita available water to 667m 3 in 2025 and 500m 3 in 2050 is expected. These figures reflects a threatening situation for water and food security in the Arab World during the current century bearing in mind that the water poverty line is estimated at 1000m 3 .The separation of Sudan into two countries has adversely affected the per capita available water in the democratic republic of Sudan. Results of the study proved that the self-sufficiency rat io of cereals in Sudan was less than 100% for most of the seasons during the period 1986/87-2006/ 07 indicat ing that production of cereal crops is below the consumption requirements of Sudanese people. The shift in consumption habits towards wheat in Sudan coupled with low co mparat ive advantage resulted in low wheat self-sufficiency ratio during the period 1986/87-2007/ 08. Th is lo w self -sufficiency rat io in wheat gives an indication that the shortage in available food is mainly attributed to the significant consumption gap in wheat. Results indicated that wheat imports are real burden on Sudanese economy absorbing most of the foreign exchange generated fro m exports of Agricultural sector. Results obtained indicated that water productivity of Sorghu m, Wheat and Groundnut grown in Gezira scheme in Sudan was very low compared to the average international water productivity. Based on the results of the study we recommend the allocation ofsubstantial financial resources to enhance food production, investment in water projects and efficient use of water with special consideration of health threats associated with the implementation of water pro jects. Develop ment of along-termwater and food production plan for the Arab countries based on the principles of cooperation and equitable distribution is highly reco mmended.
这项研究强调粮食和水安全的重要性,旨在研究和分析阿拉伯世界的粮食和水安全情况,特别强调苏丹。本研究采用描述性统计,使用从各种来源收集的二手数据。结果表明,2010年阿拉伯世界的粮食消费差距比1973年增加了24%。结果表明,阿拉伯世界人均可利用水量从1960年的3430 m3下降到2000年的1250m m3,再到2010年的876 m3。预计到2025年,人均可用水将进一步下降至6.67亿立方米,到2050年将下降至5亿立方米。这些数字反映了本世纪阿拉伯世界的水和粮食安全受到威胁的情况,考虑到水贫困线估计为1000米3 .苏丹分为两个国家对苏丹民主共和国的人均可用水产生了不利影响。研究结果表明,在1986/87-2006/ 07年的大部分季节,苏丹谷物的自给率低于100%,表明谷物作物的产量低于苏丹人民的消费需求。苏丹消费习惯转向小麦,再加上较低的相对优势,导致1986/87-2007/ 08年期间小麦自给率较低。小麦的低自给率表明,可用粮食短缺主要是由于小麦的巨大消费缺口造成的。结果表明,小麦进口是苏丹经济的真正负担,吸收了农业部门出口产生的大部分外汇。结果表明,与国际平均水生产力相比,苏丹Gezira计划种植的高粱、小麦和花生的水生产力非常低。根据这项研究的结果,我们建议拨出大量财政资源,以加强粮食生产、水项目投资和水的有效利用,同时特别考虑到与实施水项目有关的健康威胁。强烈建议在合作和公平分配原则的基础上为阿拉伯国家制定长期的水和粮食生产计划。
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引用次数: 2
期刊
Resources and Environment
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