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Assessment of the combined effects of land use/land cover and climate change on soil erosion in the Sile watershed, Ethiopian Rift Valley Lakes Basin 埃塞俄比亚裂谷湖盆地思乐流域土地利用/土地覆盖与气候变化对土壤侵蚀的综合影响评价
4区 农林科学 Q1 Agricultural and Biological Sciences Pub Date : 2023-10-31 DOI: 10.1080/23311932.2023.2273630
Birhanu Wolde, Awdenegest Moges, Rediet Grima
The combined impacts of land use/land cover (LULC) changes and climate change are significantly affecting soil and water ecologies, calling for proper natural resource management. The aims of this study were to assess the LULC dynamics between 1987 and 2050 and estimate the impact of LULC and climate changes (under two climate scenarios (RCP4.5 & RCP8.5)) on soil erosion rate in Sile watershed, Ethiopian rift valley lakes basin (ERVLB). A supervised method with maximum likelihood classification was applied in the ERDAS Imagine software for assessing the LULC of 1987, 2003, and 2020. A classified past LULC map serves as a baseline to predict 2050 LULC by considering different driver variables using Multi-Layer Perceptron Neural Network and Cellular Automata-Markov Chain Model integrated with TerrSet software. A revised universal soil loss equation model (RUSLE) has been used to compute an input parameter in ArcGIS to estimate the rate of soil loss. The input parameters were erosivity (R-factor), soil erodibility (K-factor), topography (LS-factor), conservation practice (P-factor), and cover (C-factor). The findings revealed that with the business-as-usual scenario, the substantial LULC alteration will be prolonged over the coming several years. The average soil loss under the RCP4.5 and RCP8.5 scenarios with a future 2050 LULC was predicted to be 56.48 t-ha−1 year−1 and 57.11 t-ha−1 year−1 and then it will be expected to increase 36.40% and 38.19%, respectively. In order to sustainably manage the natural resources, interventions in prioritized sub-watersheds have been suggested at present and for the future. Additionally, it needs ecological sound conservation policies and strategies to mitigate the adverse impacts of climate change on soil erosion.
土地利用/土地覆盖变化与气候变化的综合影响对土壤和水生态产生了重大影响,要求对自然资源进行适当的管理。摘要以埃塞俄比亚裂谷湖盆地思乐流域为研究对象,研究了1987 ~ 2050年土壤侵蚀面积的动态变化,并估算了两种气候情景(RCP4.5和RCP8.5)下土壤侵蚀面积与气候变化的关系。采用最大似然分类的监督方法在ERDAS Imagine软件中对1987年、2003年和2020年的LULC进行评估。利用多层感知器神经网络和元胞自动机-马尔可夫链模型与TerrSet软件集成,在考虑不同驱动变量的情况下,以分类的过去LULC地图作为预测2050年LULC的基线。利用修正的通用土壤流失量方程模型(RUSLE)计算ArcGIS中的输入参数,估算土壤流失率。输入参数为侵蚀力(r因子)、土壤可蚀性(k因子)、地形(ls因子)、保护措施(p因子)和覆盖(c因子)。调查结果显示,在一切照旧的情况下,未来几年内,LULC的重大变化将会延长。在RCP4.5和RCP8.5情景下,未来2050年LULC的平均土壤流失量分别为56.48 t-ha−1年−1和57.11 t-ha−1年−1,预计分别增加36.40%和38.19%。为了实现自然资源的可持续管理,本文提出了目前和未来对优先子流域的干预措施。此外,还需要生态健全的保护政策和战略,以减轻气候变化对土壤侵蚀的不利影响。
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引用次数: 0
Comparative nutritional evaluation of the leaves of Bambusa balcooa (Beema) and Oxytenanthera abyssinica (A. Rich.) Munro bamboos, and the straws of AGRA and AMANKWATIA rice varieties 竹(Beema)和深草(Oxytenanthera abyssinica, A. Rich.)叶片营养价值的比较门罗竹材,以及AGRA和AMANKWATIA水稻品种的秸秆
4区 农林科学 Q1 Agricultural and Biological Sciences Pub Date : 2023-10-31 DOI: 10.1080/23311932.2023.2263960
Prince Sasu, Dora Edinam Akorli, Raymond Asare, Victoria Attoh-Kotoku, Obed Adjei, Benjamin Adjei-Mensah, Rachida Adjima Tankouano, Frank Kweku Mintah, Antoinette S. Anim-Jnr, Michael Kwaku, Theophilus Owusu Ansah
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引用次数: 0
The pastoralism system in South-Western Ethiopia: The practices, constraints, and determinants in Itang Special district, Gambella Region 埃塞俄比亚西南部的畜牧系统:甘贝拉地区Itang特区的实践、制约因素和决定因素
4区 农林科学 Q1 Agricultural and Biological Sciences Pub Date : 2023-10-31 DOI: 10.1080/23311932.2023.2273627
Chayot Gatdet
Pastoralism is used as a livelihood strategy across pastoral areas in Ethiopia, as it is in other parts of the world. However, studies on the pastoralism system in the Gambella Region of Ethiopia appear outdated. Therefore, a study was conducted to assess the current state of pastoralism in the Gambella Region of Ethiopia and identify the challenges faced by pastoralists. The study area and participants were then chosen using purposive and simple random selection approaches. Data from 156 respondents was collected using a mixed strategy, which included focus group discussions and an interview schedule. The result showed that 67.3%, 23.7%, and 9% of the respondents used the transhumance, nomadic, and semi-pastoral systems. Moreover, resource conflict (64.7%), floods (62.8%), livestock raiding (68%), poor infrastructure (65.4%), livestock diseases (64.1%), inadequate social services (50.6%), ignorance of the pastoral system (63.5%), and expansion of farm land (71.8%) were identified as the main constraints. The model result revealed that credit access, livestock size, household labor, and education status positively influenced pastoral practices, while dependency ratio, water access, and pasture access negatively affected pastoral practices in the study area. Therefore, pastoral practices were differently influenced in the study area.
与世界其他地区一样,在埃塞俄比亚的牧区,畜牧业被用作一种生计战略。然而,对埃塞俄比亚甘贝拉地区畜牧系统的研究似乎过时了。因此,开展了一项研究,以评估埃塞俄比亚甘贝拉地区畜牧业的现状,并确定牧民面临的挑战。然后使用有目的和简单的随机选择方法选择研究区域和参与者。来自156名受访者的数据是通过混合策略收集的,其中包括焦点小组讨论和访谈时间表。结果表明,67.3%、23.7%和9%的回答者使用的是跨牧、游牧和半牧制度。此外,资源冲突(64.7%)、洪水(62.8%)、牲畜掠夺(68%)、基础设施差(65.4%)、牲畜疾病(64.1%)、社会服务不足(50.6%)、对牧区制度的无知(63.5%)和农田扩张(71.8%)是主要制约因素。模型结果显示,信贷可及性、牲畜规模、家庭劳动力和受教育程度正向影响牧区牧民行为,而抚养比、水源可及性和牧场可及性对牧区牧民行为有负向影响。因此,研究区牧区实践受到不同程度的影响。
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引用次数: 0
Financial analysis of apple ( Malus domestica ) production in Darchula district of Nepal 尼泊尔达丘拉地区苹果生产的财务分析
4区 农林科学 Q1 Agricultural and Biological Sciences Pub Date : 2023-10-30 DOI: 10.1080/23311932.2023.2272490
Krishna Raj Pandey, Madhav Prasad Neupane, Yagya Raj Joshi, Asmita Paudel, Sushil Khatri
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引用次数: 0
Effect of fringed rue ( Ruta chalepensis ) leaf as feed additives on growth performance and carcass characteristics of broiler chickens 白穗芸香叶作为饲料添加剂对肉鸡生长性能和胴体特性的影响
4区 农林科学 Q1 Agricultural and Biological Sciences Pub Date : 2023-10-30 DOI: 10.1080/23311932.2023.2274170
Yonatan Kassu Yesuf, Abera Anja Zema, Melese Mengistu Mejab
Ruta Chalepensis (fringed rue) has been used for therapeutic and aromatic purposes. However, using this plant as a natural additive in animals is scarce. A seven-week study was conducted to determine and elucidate the effects of fringed rue as a feed additive on broiler chickens growth performance and carcass characteristics. The average weight (40.08 ± 0.42 g) of 144 unsexed, day-old broiler chickens was arranged in a completely randomized design into four treatment groups. Each treatment group was divided into three replicates of twelve birds. Four treatments feed containing ground fringed rue leaves at different levels of T1 (basal diet+ the antibiotics Flavomycin at 1 g kg−1); T2 (basal diet + 60 g kg−1, T3 (basal diet + 120 g kg−1), and T4 (basal diet + 180 g kg−1. DM Intake was considerably high (P < 0.05) in the T3 group than in the antibiotics control group broilers. As a result, T3 groups have better improvement (P < 0.05) in final body weight, BW gain, and ADG compared to the antibiotics control in all phases. There were high improvements (P < 0.05) in dressing percentage, breast, thigh muscle, and drumsticks for chickens fed T3 and T2 than in the control group. Generally, supplementation of fringed rue up to 120 g kg−1 has no adverse effects on broiler chickens.
Chalepensis(穗状芸香)已被用于治疗和芳香目的。然而,将这种植物用作动物的天然添加剂是很少的。通过为期7周的试验,确定和阐明棱叶芸香作为饲料添加剂对肉鸡生长性能和胴体特性的影响。选取平均体重(40.08±0.42 g) 144只无性别日龄肉鸡,采用完全随机设计分为4个处理组。每个处理组分为3个重复,每组12只。4个处理饲粮中添加不同T1水平的芸香叶(基础饲粮+抗生素黄霉素1 g kg−1);T2(基础饲粮+ 60 g kg - 1)、T3(基础饲粮+ 120 g kg - 1)、T4(基础饲粮+ 180 g kg - 1)。T3组肉鸡DM采食量显著高于抗生素对照组(P < 0.05)。结果表明,T3组在终末体重、体重增重和平均日增重方面均较抗生素对照组有较好的改善(P < 0.05)。T3和T2组鸡的屠宰率、胸肌、大腿肌和鸡腿均较对照组有显著提高(P < 0.05)。一般情况下,添加120 g kg - 1的穗状芸豆对肉鸡没有不良影响。
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引用次数: 0
A review article on the impact and challenges of mobile phone usage on agricultural production in Africa 一篇关于移动电话使用对非洲农业生产的影响和挑战的综述文章
4区 农林科学 Q1 Agricultural and Biological Sciences Pub Date : 2023-10-30 DOI: 10.1080/23311932.2023.2273634
Erlangga Erlangga, Owen Machuku, Clint Jun Dahino
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引用次数: 0
Functional properties of uda ( Xylopia aethiopica) and uziza (Piper guineenses) spiced akamu powder correlated with the paste proximate composition intended for Nigerian postnatal mothers 乌达和乌齐扎香料阿卡木粉的功能特性与尼日利亚产后母亲使用的膏体近似成分相关
4区 农林科学 Q1 Agricultural and Biological Sciences Pub Date : 2023-10-27 DOI: 10.1080/23311932.2023.2271237
Innocent N. Okwunodulu, Anselm U. Onwuzuruike, Gladys-Peace U. Chima, Felicia U. Okwunodulu
This study explored the influence of spicing akamu powder and paste with uda and uziza on the viscosity and mouth feel of the gruel for postnatal mothers in Nigeria. White and yellow maize were separately spiced during steeping (72 h) and milling. The slurry obtained was dewatered to obtain the spiced pastes. Half paste of each batch was oven dried at 60°C and milled. Functional properties of dried akamu pastes, proximate composition of the paste and their correlation factors were conducted with standard analytical methods. The functional results were; water absorption capacity (142.33–149.50 g/ml), oil absorption capacity (104.64–118.60 g/m), emulsion activity (20.52−31.21%), foam capacity (12.45–17.27%) and least gelation capacity (4.00–8.00). Proximate results were; moisture content (47.03–47.12%), crude protein (7.06–7.40%), fat (1.92–2.42%), fibre (3.31–3.49), ash (2.18–2.23%) and carbohydrate (36.07–38.28%). Both functional and proximate compositions were improved and correlated significantly at 0.01% levels.The use of both spices is feasible for spicing akamu powder production for postnatal mothers.
本研究探讨了阿卡木粉和阿卡木浆中加入uda和uziza对尼日利亚产后母亲粥粘度和口感的影响。在浸泡(72 h)和碾磨过程中分别对白玉米和黄玉米进行调味。将得到的浆料脱水,得到调味膏。每批膏体的一半在60°C烘箱干燥并碾磨。采用标准分析方法对干燥阿卡木膏体的功能特性、膏体的近似组成及其相关因素进行了研究。功能结果为;吸水能力(142.33 ~ 149.50 g/ml)、吸油能力(104.64 ~ 118.60 g/m)、乳化活性(20.52 ~ 31.21%)、泡沫能力(12.45 ~ 17.27%)和最小凝胶能力(4.00 ~ 8.00)。近似结果为;水分(47.03-47.12%)、粗蛋白质(7.06-7.40%)、脂肪(1.92-2.42%)、纤维(3.31-3.49)、灰分(2.18-2.23%)、碳水化合物(36.07-38.28%)。在0.01%的水平上,功能成分和近似成分均有显著改善。使用这两种香料是可行的,为产后母亲香料akamu粉生产。
{"title":"Functional properties of <i>uda</i> ( <i>Xylopia aethiopica)</i> and <i>uziza (Piper guineenses)</i> spiced <i>akamu</i> powder correlated with the paste proximate composition intended for Nigerian postnatal mothers","authors":"Innocent N. Okwunodulu, Anselm U. Onwuzuruike, Gladys-Peace U. Chima, Felicia U. Okwunodulu","doi":"10.1080/23311932.2023.2271237","DOIUrl":"https://doi.org/10.1080/23311932.2023.2271237","url":null,"abstract":"This study explored the influence of spicing akamu powder and paste with uda and uziza on the viscosity and mouth feel of the gruel for postnatal mothers in Nigeria. White and yellow maize were separately spiced during steeping (72 h) and milling. The slurry obtained was dewatered to obtain the spiced pastes. Half paste of each batch was oven dried at 60°C and milled. Functional properties of dried akamu pastes, proximate composition of the paste and their correlation factors were conducted with standard analytical methods. The functional results were; water absorption capacity (142.33–149.50 g/ml), oil absorption capacity (104.64–118.60 g/m), emulsion activity (20.52−31.21%), foam capacity (12.45–17.27%) and least gelation capacity (4.00–8.00). Proximate results were; moisture content (47.03–47.12%), crude protein (7.06–7.40%), fat (1.92–2.42%), fibre (3.31–3.49), ash (2.18–2.23%) and carbohydrate (36.07–38.28%). Both functional and proximate compositions were improved and correlated significantly at 0.01% levels.The use of both spices is feasible for spicing akamu powder production for postnatal mothers.","PeriodicalId":10521,"journal":{"name":"Cogent Food & Agriculture","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136261892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Estimation of feed dry matter supply in relation to land use and livestock requirements in southwestern Ethiopia 埃塞俄比亚西南部与土地利用和牲畜需求相关的饲料干物质供应估算
4区 农林科学 Q1 Agricultural and Biological Sciences Pub Date : 2023-10-27 DOI: 10.1080/23311932.2023.2270276
Asrat Guja Amejo
The study is being done to assess the availability of feed dry matter (DM) from private holdings and communal lands in relation to livestock demand and to provide management solutions in a smallholder system in Gamo Gofa and Dawuro zones of south western Ethiopia. Data for the study were compiled by combining crop and livestock production information at the household level. The extents of community land cover and land utilisation were calculated using spatial contours in geographic information system (GIS) and field survey results. Monthly feed DM availability by land cover area (ha) was computed using data from the livelihoods early assessment and protection (LEAP) software derived from eight years of normalised differential vegetation index values. According to the study, private land generated 33% of the feed while common land produced 67%. Around 1,300 tonnes of DM were generated as livestock feed per year, with 47% coming from private property and the remaining 53% from communal land. When compared to the existing livestock population, the required amount of DM is only 62% of total supply, yielding a 38% surplus. However, feed shortages are prevalent in the region due to supply inconsistencies. Livestock requirements can be met by employing appropriate management strategies that preserve feed availability from varied land use types and land cover in times of scarcity. Planning and preserving feeds, training communities in the operation and use of available resources, and developing infrastructure for in-situ feed conservation throughout dry season will help smallholder livelihoods and the national economy.
目前正在进行这项研究,以评估与牲畜需求有关的私人土地和公共土地的饲料干物质(DM)供应情况,并为埃塞俄比亚西南部加莫戈法和达乌罗地区的小农系统提供管理解决方案。该研究的数据是通过结合家庭一级的作物和牲畜生产信息编制的。利用地理信息系统(GIS)中的空间等高线和实地调查结果计算了社区土地覆盖和土地利用程度。每月按土地覆盖面积(公顷)计算饲料干物质利用率,使用生计早期评估和保护(LEAP)软件的数据,这些数据来自8年的标准化差异植被指数值。根据这项研究,私人土地生产了33%的饲料,而公共土地生产了67%。每年大约生产1300吨DM作为牲畜饲料,其中47%来自私人财产,其余53%来自公共土地。与现有牲畜种群相比,DM的需要量仅占总供应量的62%,产生38%的盈余。然而,由于供应不一致,饲料短缺在该地区普遍存在。牲畜需求可以通过采取适当的管理策略来满足,这些策略可以在短缺时期保持不同土地利用类型和土地覆盖的饲料供应。规划和保存饲料,培训社区如何操作和利用现有资源,以及发展整个旱季就地保存饲料的基础设施,将有助于小农的生计和国民经济。
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引用次数: 0
Effect of rhizobium inoculation on yield and some quality properties of fresh cowpea 接种根瘤菌对新鲜豇豆产量及部分品质的影响
4区 农林科学 Q1 Agricultural and Biological Sciences Pub Date : 2023-10-27 DOI: 10.1080/23311932.2023.2275410
Ahmet Emre Kandil, Halime Özdamar Ünlü
Biological nitrogen fixation is considered important to maintain agricultural sustainability. In this study, 2 different cowpea varieties were used consisting of 6 different treatments (seed inoculation, soil inoculation, nitrogen application, seed inoculation + nitrogen application, soil inoculation + nitrogen application, and control) to determine the effect of rhizobium inoculation on fresh cowpea yield and quality. The protein, total phenolic, β-carotene, chlorogenic acid, ascorbic acid, total and reducing sugar contents of fresh pods were investigated. Besides, parameters such as total fresh yield, pod width, pod length, and total chlorophyll in leaves were also investigated. As a result, it was determined that both rhizobium inoculation and nitrogen applications positively affected all parameters compared to the control treatment. Thus, rhizobium inoculation has the potential to be an alternative to nitrogen applications in fresh cowpea cultivation.
生物固氮被认为是维持农业可持续性的重要手段。本研究以2个不同豇豆品种为研究对象,采用6个不同处理(种子接种、土壤接种、施氮、种子接种+施氮、土壤接种+施氮、对照),研究接种根瘤菌对新鲜豇豆产量和品质的影响。研究了鲜豆荚的蛋白质、总酚、β-胡萝卜素、绿原酸、抗坏血酸、总糖和还原糖含量。此外,还对总鲜产量、荚果宽度、荚果长、叶片总叶绿素等参数进行了研究。结果表明,与对照处理相比,接种根瘤菌和施氮对所有参数均有正向影响。因此,接种根瘤菌有可能成为新鲜豇豆栽培中氮施用的替代方法。
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引用次数: 0
An analysis of the ginger value chain in palpa, Nepal 尼泊尔帕尔帕生姜价值链分析
4区 农林科学 Q1 Agricultural and Biological Sciences Pub Date : 2023-10-24 DOI: 10.1080/23311932.2023.2270799
Raj Chaudhary, Hom Nath Giri, Nama Raj Bhusal, Shimran Dahal, Pratima Timalsina, Niraj Bhandari
To solve the current shortcomings in the marketing channel of ginger (Zingiber officinale) and the subsequent value addition along the channel, a value chain analysis is required. A household survey of producers and in-person interviews with traders were conducted in one of the municipalities (Rampur municipality) and three different rural municipalities, namely Nisdi, Purbakhola, and Bagnaskali of Palpa district, with the sole purpose of analyzing the ginger value chain. For the analysis, a total of 97 ginger growers and 10 traders were surveyed. Interviews with traders, processors, and middlemen were also required to determine the value chain and the cost of ginger at each stage. The difference between farm gate pricing and retailers’ prices was determined to be NPR. 40. With an average B:C ratio of 1.06, the findings showed that ginger production was a financially viable business in the study area of the Palpa district. To enhance ginger production and production areas, the government should give producers financial support. According to the Cobb-Douglas production function, the scalability of ginger production increased at a decreasing rate. As the sum of the regressions of all the inputs in the regression function was found to be 0.895, the gross return would rise by roughly 89.5% of all the inputs listed in the production function were increased by 100%. The PMAMP’s zone office for ginger and turmeric should offer farmers technical support to help them deal with disease and pest issues and market information.
为了解决目前生姜(Zingiber officinale)营销渠道的不足,以及后续的渠道增值,需要进行价值链分析。在其中一个市(兰普尔市)和三个不同的农村市(即帕尔帕区的Nisdi、Purbakhola和Bagnaskali)对生产者进行了家庭调查,并对贸易商进行了面对面访谈,其唯一目的是分析生姜价值链。为了进行分析,总共调查了97名生姜种植者和10名贸易商。还需要与贸易商、加工商和中间商进行访谈,以确定每个阶段的价值链和生姜的成本。确定农场价格与零售商价格之差为NPR。40. 平均B:C比值为1.06,研究结果表明,生姜生产在帕尔帕地区的研究区域是一项经济上可行的业务。为了提高生姜的产量和生产区域,政府应该给予生产者资金支持。根据柯布-道格拉斯生产函数,生姜生产的可扩展性呈递减趋势。由于回归函数中所有投入的回归之和为0.895,因此,当生产函数中列出的所有投入增加100%时,总收益将增加约89.5%。PMAMP的生姜和姜黄地区办事处应向农民提供技术支持,帮助他们处理病虫害问题和市场信息。
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引用次数: 0
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Cogent Food & Agriculture
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