Sudan – Land, Climate, Energy, Agriculture and Development: A Study in the Sudano-Sahel Initiative for Regional Development, Jobs, and Food Security

A. K. Osman, Adil M. Ali
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引用次数: 7

Abstract

Sudan is situated in Sub-Saharan Africa, covering an area of about 1.9 million km2 and has a population of 43 million. It is regarded as one of the countries in the world where human development is least advanced with a poverty rate of about 46%. Sudan’s economy is based on agriculture, which contributes about one-third of the (GDP). Sudan’s agriculture has three distinct crop and three distinct livestock production systems. The Crop production systems are: irrigated, traditional and mechanized rain-fed farming. The livestock production systems are: nomadic, transhumant and sedentary systems. The annual cultivated land is around 20 million hectares, more than 85% of which are rain-fed. The livestock population is estimated at 105 million heads concentrated in nomadic and transhumant production systems. Water resources in Sudan are: river Nile and its tributaries, seasonal streams, underground water and surface water. Sources of energy are: biomass; electricity (hydro and fossil fuels) and petroleum products, accounting for about 78,8% and 14%, respectively, of the total energy balance. Sudan has significant renewable energy resources. Particularly solar energy is well distributed all over the country thus having the potential to facilitate the provision of energy services to rural settlements. Sudanese land cover classes indicated that 51% of the country area is bare rocks and soil, agriculture land is 13%, and tree cover and herbaceous vegetation cover 36% of the total Sudan area. The annual crop cultivated area is around 20 million ha and the main crops occupying more than 90% of the cultivated area are sorghum, millet, wheat, sesame and groundnut. Rangelands are the backbone of the livelihood of pastoralists and agro-pastoralists producing annually about 73% of the total feed required for national herds. The forest area is about 22 million ha thus comprising three different classes: federal, state, and community/private forests. Sudan is one of the most seriously affected countries by desertification in Africa. Recent GIS and remote sensing results indicated that between 1958 and 2017 the desert boundary was moved more to the south pushing the country into a historical desertification disaster. Several attempts were made to formulate regulations and legislations to combat soil degradation and desertification. However, desertification in Sudan remains a major environmental threat. Sudan is among the most vulnerable countries in the world to climate change, ranking 175th out of 181 countries. Analyses of rainfall and temperature have demonstrated a high rainfall variability and a clear rise in maximum and minimum temperature. Key climate change impacts include: reduced crops and livestock productivity, reduction in the duration of the growing season and socioeconomic impact such as conflict over resources and migration to urban centres. Sudan has implemented several plans and policies which directly relate to climate change adaptation and development priorities. The focus of these plans and policies is: food security and raising productivity, reducing poverty and enhancing adaptation and resilience to climate change, protecting and developing natural resources, land tenure problems and strengthening governance and institutional capacity. These interventions had limited success in achieving their objectives. The main reasons are: a lack of political stability and fluctuating economic and financial policies as well as weak administrative and implementation capacity of the government institutions. The main lessons learnt are: agricultural-development programmes require increased and more effective public and private partnerships involving the main stakeholders. The low flow of finance to the agricultural sector remains one of the obstacles of agricultural growth. In addition to the poor rural infrastructure, the ongoing conflicts and social unrest in many parts of the country are strongly impacting the performance of the economy and constraining the development plans and policies.
苏丹——土地、气候、能源、农业与发展:苏丹-萨赫勒地区发展、就业和粮食安全倡议研究
苏丹位于撒哈拉以南非洲,面积约190万平方公里,人口4300万。它被认为是世界上人类发展最不发达的国家之一,贫困率约为46%。苏丹的经济以农业为基础,约占国内生产总值的三分之一。苏丹的农业有三种不同的作物和三种不同的牲畜生产系统。作物生产系统有:灌溉、传统和机械化雨养农业。牲畜生产系统有:游牧、迁移和定居系统。年耕地约2000万公顷,其中85%以上为雨养。牲畜存栏数估计为1.05亿头,集中在游牧和转业生产系统中。苏丹的水资源有:尼罗河及其支流、季节性溪流、地下水和地表水。能源来源有:生物质能;电力(水电和化石燃料)和石油产品,分别约占总能源平衡的78.8%和14%。苏丹拥有丰富的可再生能源资源。特别是太阳能在全国各地分布良好,因此有可能促进向农村住区提供能源服务。苏丹土地覆盖等级表明,该国51%的地区是裸露的岩石和土壤,农业用地为13%,树木和草本植被覆盖了苏丹总面积的36%。年农作物栽培面积约2000万公顷,主要作物有高粱、小米、小麦、芝麻和花生,占耕地面积的90%以上。牧场是牧民和农牧民生计的支柱,每年生产的饲料约占全国畜群所需饲料总量的73%。森林面积约为2200万公顷,因此包括三种不同的类别:联邦森林、州森林和社区/私人森林。苏丹是非洲受沙漠化影响最严重的国家之一。最近的GIS和遥感结果表明,在1958年至2017年期间,沙漠边界进一步向南移动,使该国陷入历史性的沙漠化灾害。为制定防治土壤退化和荒漠化的条例和立法作出了几次努力。然而,苏丹的沙漠化仍然是一个主要的环境威胁。苏丹是世界上最易受气候变化影响的国家之一,在181个国家中排名第175位。对降雨和温度的分析表明,降雨量变化很大,最高和最低温度明显上升。气候变化的主要影响包括:作物和牲畜生产力下降,生长季节持续时间缩短,以及资源冲突和向城市中心迁移等社会经济影响。苏丹实施了若干与适应气候变化和发展优先事项直接相关的计划和政策。这些计划和政策的重点是:粮食安全和提高生产力,减少贫困和增强对气候变化的适应和抵御能力,保护和开发自然资源,土地权属问题以及加强治理和机构能力。这些干预措施在实现其目标方面取得的成功有限。主要原因是:政治不稳定,经济金融政策波动,政府机构的管理和执行能力较弱。吸取的主要教训是:农业发展计划需要主要利益攸关方参与的更多和更有效的公私伙伴关系。流向农业部门的资金不足仍然是农业增长的障碍之一。除了农村基础设施落后外,该国许多地区持续不断的冲突和社会动荡严重影响了经济运行,制约了发展计划和政策的实施。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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