American Journal of Environmental Economics最新文献_第2页

Economic Effects of the Failure of Kandesha Dam on Local Communities in Mumbwa District, Zambia 坎德沙大坝溃坝对赞比亚蒙瓦地区当地社区的经济影响

American Journal of Environmental Economics Pub Date : 2023-01-08 DOI: 10.54536/ajee.v1i2.945

M. Muchanga, Bertha Mzyece

引用次数: 2

An Overview of Tree Species Used for Agroforestry Practices in Nepal 尼泊尔用于农林业实践的树种概况

American Journal of Environmental Economics Pub Date : 2022-08-29 DOI: 10.54536/ajee.v1i1.461

Sher Bahadur Budha

{"title":"An Overview of Tree Species Used for Agroforestry Practices in Nepal","authors":"Sher Bahadur Budha","doi":"10.54536/ajee.v1i1.461","DOIUrl":"https://doi.org/10.54536/ajee.v1i1.461","url":null,"abstract":"Tree species are the main component of the agro-forestry system because they provide farmers with direct benefits and play a vital role in mitigating climate change, stabilizing slopes, and ecological balance. The list of tree species used in different agro-forestry practices shows 110 tree species belonging to 42 families. Tree species belonging to the family Moraceae are widely used in agro-forestry practices, followed by Liguminosae, Rosaceae, Rubiaceae, and so on. There are approximately 44 species of trees suitable for single use, such as forage, fruit, fuelwood, and timber production. Similarly, tree species with two functions are better than tree species with only one function. Approximately 40 trees have two functions: food and fuelwood, fruit and fuelwood, and wood and fuelwood. Among the 110 species used in agro-forestry practices in Nepal, 21 species have more than two functions and are the most suitable species for agro-forestry practices. The use of tree species in different agro-forestry practices shows that the number of trees used in Silvo-pastoral systems is the highest (30%), followed by Horto-agri-silviculture (23%). Approximately 21% of tree species are used in more than two agro-forestry systems. The minimum number of tree species used for Agri-silvi-pastoral and home gardens is 3% and 4% respectively.","PeriodicalId":260904,"journal":{"name":"American Journal of Environmental Economics","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117051363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Field Performance and Economic Analysis of Different Adlai (Coixlacryma-Jobi L.) Cultivars Grown Under Lowland Conditions in Cebu City, Philippines 不同阿德莱(Coixlacryma-Jobi L.)田间性能及经济分析在菲律宾宿务市低地条件下生长的栽培品种

American Journal of Environmental Economics Pub Date : 2022-08-27 DOI: 10.54536/ajee.v1i1.425

Marciano D. Tangpos

{"title":"Field Performance and Economic Analysis of Different Adlai (Coixlacryma-Jobi L.) Cultivars Grown Under Lowland Conditions in Cebu City, Philippines","authors":"Marciano D. Tangpos","doi":"10.54536/ajee.v1i1.425","DOIUrl":"https://doi.org/10.54536/ajee.v1i1.425","url":null,"abstract":"Adlai (Coixlacryma – jobi L.) had a higher potential alternative crop for rice and corn, but information about this crop is still limited. This study was conducted to; a) evaluate the agronomic component, yield, and yield characteristics; and b) determine the economic analysis of different Adlai cultivars under lowland conditions of Carcar City, Cebu. The area (360 m2) was laid out in Randomized Complete Block Design (RCBD). Three Adlai cultivars were designated as treatments replicated thrice. All treatments were applied uniformly with inorganic fertilizer at the rate of 120-60-60 kg/ha N, P2O5, and K2O using complete fertilizer (14-14-14) and urea (46-0-0). Among cultivars, Tapol and Gulian markedly headed and matured earlier than Ginampay. Tapol cultivar grew taller and produced longer panicles with extended and broader leaves. Meanwhile, Gulian had a higher number of panicles than Tapol and Ginampay. In terms of yield, Tapol cultivar produced a higher grain yield comparable to Gulian and Ginampay. However, only the Tapol cultivar generated the highest gross margin and percent return on investment of PHP 59, 269.79 and 3.51 which indicated as high adaptability of Tapol cultivar under lowland conditions in Carcar City, Cebu.","PeriodicalId":260904,"journal":{"name":"American Journal of Environmental Economics","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116297063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative Study of Phytochemical Properties of Some Bio-Material (African Yam Bean, Pigeon Pea, Pawpaw Leaf Powder, Moringa Seed and Pawpaw Seed) 几种生物材料(非洲山药豆、鸽豆、木瓜叶粉、辣木籽、木瓜籽)植物化学性质的比较研究

American Journal of Environmental Economics Pub Date : 2022-07-02 DOI: 10.54536/ajee.v1i1.347

Ibiam Prince Amauche, Amadi Chiubeze, Ezeamama Liliam, Ani Grace O., Ifegbo Arinze N

{"title":"Comparative Study of Phytochemical Properties of Some Bio-Material (African Yam Bean, Pigeon Pea, Pawpaw Leaf Powder, Moringa Seed and Pawpaw Seed)","authors":"Ibiam Prince Amauche, Amadi Chiubeze, Ezeamama Liliam, Ani Grace O., Ifegbo Arinze N","doi":"10.54536/ajee.v1i1.347","DOIUrl":"https://doi.org/10.54536/ajee.v1i1.347","url":null,"abstract":"The study was carried out to compare the phytochemical properties of Africa yam bean, pigeon pea, moringa seed, pawpaw leaf and pawpaw seed powder and the Significance of the phytochemicals in respect to the treatment of diseases were discussed. Phytochemicals were qualitatively analyzed from the plants ethanol extracts and the practical were done in Bro. Mike researchers Lab. Umuerim Extension Umudibia Nekede and the Standard phytochemical analysis methods were adopted. Preliminary screening of the Africa yam bean, pigeon pea, moringa seed, Pawpaw leaf and pawpaw seed powder revealed the presence of alkaloids, tannins, flavonoids, saponins, steroids, and in all the plants ethanol extracts. Africa yam bean contained all the phytochemicals except tannin, while there was absence of flavonoid, and Glycoside in pigeon pea. Tannins were also absent in the pawpaw seed and pawpaw seed extracts. There was also the absence of steroid and ncardiac glycosides in moringa. The quantitative analysis of the six selected phytochemicals revealed that there was a significant difference in the mean values of alkaloids and flavonoids contents of African yam bean plants. However, at Africa yam bean had the highest Alkaloids content while moringa seed had the highest flavonoids content. The Pawpaw leaf contained the highest tannins and Saponins was found highest in pawpaw leaf and pawpaw seed. Finally, the results justified the medicinal potentials of these plants in the treatment of diseases.","PeriodicalId":260904,"journal":{"name":"American Journal of Environmental Economics","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131575731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Climate Change: It’s Causes, Inflicted Hazards, Adopted Strategies and Opportunities in Agriculture of Nepal: A Detailed Review 气候变化:尼泊尔农业的原因、造成的危害、采取的战略和机遇:详细回顾

American Journal of Environmental Economics Pub Date : 2022-06-28 DOI: 10.54536/ajee.v1i1.358

Anubhav Tripathi, Mamata Pandey

{"title":"Climate Change: It’s Causes, Inflicted Hazards, Adopted Strategies and Opportunities in Agriculture of Nepal: A Detailed Review","authors":"Anubhav Tripathi, Mamata Pandey","doi":"10.54536/ajee.v1i1.358","DOIUrl":"https://doi.org/10.54536/ajee.v1i1.358","url":null,"abstract":"The greatest threat of 21st century, climate change is being deeply studied for its adverse effects and coping strategies by almost all nations of world. Although, detailed studies in developed nations are most common, Nepal lags in its own research and studies for understanding this change. With great geographic, altitudinal, socio-economical and biological variation in Nepal, the need for study of climate change has grown mandatory since farmers are experiencing peculiar unusual cases different from past. Farmers perception and studies remark the changes in temperature, rainfall, weed dynamics, insect, pest and disease outbreak, hazardous events, duration of a season, unpredictability in weather, loss of production and productivity, food insecurity, degradation of soil physical and chemical status, biological losses and alterations. Many adaptative strategies have been put forward locally and from government level that have shown different efficacy in different environment. Simply put, local site-specific adaptive strategies must be given more importance and prioritization. Financial cringe to tackle climate change must be sorted out and available resources must be put to use by NAPA. Modifications in farm operations, time adjustment and use of modern technology in practices, crop selection, improvement and their cultivation, detailed weather forecasting, soil and water conservation practices, agroforestry, crop rotation, share cropping and off farm engagements have been highlighted. Factors that influence the rate of adoption include age, gender, education and outreach of house head, financial liquidity, size of farms and availability of resources. New opportunities and prospects though revealed, it is still to be utilized.","PeriodicalId":260904,"journal":{"name":"American Journal of Environmental Economics","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115031679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2