动态人口对农业生产力的不同影响——欠发达国家与发达国家的比较

A. El-Ghannam
{"title":"动态人口对农业生产力的不同影响——欠发达国家与发达国家的比较","authors":"A. El-Ghannam","doi":"10.21608/asajs.2021.198670","DOIUrl":null,"url":null,"abstract":"The objectives of this study are to identify and explain the different between population dynamic and agricultural productivity in LDC’s and MDC’s; as well as to investigate the relationships between population dynamic and agricultural productivity in LDC’s and MDC’s. The sample was involved 109 countries. According to the Human Development Report (2019), 58 of these countries are considering as LDC’s, while others 51 are considering as MDC’s. Means, standard deviation, T test, and Spearman correlation coefficients used as statistical techniques. Results of T test indicate a different statistically significant between LDC’s and MDC’s for the all dependent and independent variables, except the total population variable. The results of Spearman's correlation coefficients showed that the highest index of crop production is likely to occur among LDC’s that have a high population growth rate and more dependency ratio, while it occurs among MDC’s with the highest percentage of the population age composition (0-14). Furthermore, the results suggest that the highest food production index are more likely to occur among MDC’s that have the more growth rate of population, more growth rates of urban population, highest rate of net migration, lowest dependency ratio, highest percent of population age composition (0-14 and 15-64), and lowest percent of population age composition (65+), while it occurs among LDC’s with the high population growth rate. Moreover, the results suggest that the highest livestock production index are more likely to occur among MDC’s that have the highest growth rate of population, highest growth rate of urban population, highest rate of net migration, less ةيعارزلا مولعلل ةيبرعلا ةللمجا دللمجا عبارلا ( ددعلا 12 ) ربوتكأ 2021 49 3 dependency ratio, highest percent of population age composition (15-64), and lowest percent of population age composition (65+).","PeriodicalId":209738,"journal":{"name":"المجلة العربیة للعلوم الزراعیة","volume":"90 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The Different Effects of the Dynamic Population on Agricultural Productivity as a Comparison among Less and More Developed Countries\",\"authors\":\"A. El-Ghannam\",\"doi\":\"10.21608/asajs.2021.198670\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The objectives of this study are to identify and explain the different between population dynamic and agricultural productivity in LDC’s and MDC’s; as well as to investigate the relationships between population dynamic and agricultural productivity in LDC’s and MDC’s. The sample was involved 109 countries. According to the Human Development Report (2019), 58 of these countries are considering as LDC’s, while others 51 are considering as MDC’s. Means, standard deviation, T test, and Spearman correlation coefficients used as statistical techniques. Results of T test indicate a different statistically significant between LDC’s and MDC’s for the all dependent and independent variables, except the total population variable. The results of Spearman's correlation coefficients showed that the highest index of crop production is likely to occur among LDC’s that have a high population growth rate and more dependency ratio, while it occurs among MDC’s with the highest percentage of the population age composition (0-14). Furthermore, the results suggest that the highest food production index are more likely to occur among MDC’s that have the more growth rate of population, more growth rates of urban population, highest rate of net migration, lowest dependency ratio, highest percent of population age composition (0-14 and 15-64), and lowest percent of population age composition (65+), while it occurs among LDC’s with the high population growth rate. Moreover, the results suggest that the highest livestock production index are more likely to occur among MDC’s that have the highest growth rate of population, highest growth rate of urban population, highest rate of net migration, less ةيعارزلا مولعلل ةيبرعلا ةللمجا دللمجا عبارلا ( ددعلا 12 ) ربوتكأ 2021 49 3 dependency ratio, highest percent of population age composition (15-64), and lowest percent of population age composition (65+).\",\"PeriodicalId\":209738,\"journal\":{\"name\":\"المجلة العربیة للعلوم الزراعیة\",\"volume\":\"90 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"المجلة العربیة للعلوم الزراعیة\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.21608/asajs.2021.198670\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"المجلة العربیة للعلوم الزراعیة","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.21608/asajs.2021.198670","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

摘要

本研究的目的是确定和解释最不发达国家和最发展中国家人口动态和农业生产力之间的差异;以及调查最不发达国家和发展中国家人口动态与农业生产力之间的关系。样本涉及109个国家。根据《人类发展报告(2019)》,这些国家中有58个被认为是最不发达国家,而其他51个被认为是争取民主变革国家。均值、标准差、T检验和Spearman相关系数作为统计技术。T检验结果表明,除总体变量外,所有因变量和自变量的LDC和MDC之间存在统计学差异。Spearman相关系数结果显示,粮食生产指数最高的地区可能是人口增长率高、抚养比高的最不发达国家,而人口年龄构成(0-14岁)比例最高的最不发达国家。此外,粮食生产指数最高的地区更可能出现在人口增长率高、城市人口增长率高、净迁移率最高、抚养比最低、人口年龄构成比例(0-14岁和15-64岁)最高、人口年龄构成比例(65岁以上)最低的MDC国家,而人口增长率高的最不发达国家则更可能出现粮食生产指数最高的地区。此外,研究结果表明,在人口增长率最高、城镇人口增长率最高、净迁移率最高、ةيعارزلا مولعلل ةيبرعلا ةللمجا دللمجا عبارلا (ددعلا 12) ربوتكأ 2021 49 3抚养比最小、人口年龄构成百分比最高(15-64岁)和人口年龄构成百分比最低(65岁以上)的MDC中,畜牧生产指数最高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Different Effects of the Dynamic Population on Agricultural Productivity as a Comparison among Less and More Developed Countries
The objectives of this study are to identify and explain the different between population dynamic and agricultural productivity in LDC’s and MDC’s; as well as to investigate the relationships between population dynamic and agricultural productivity in LDC’s and MDC’s. The sample was involved 109 countries. According to the Human Development Report (2019), 58 of these countries are considering as LDC’s, while others 51 are considering as MDC’s. Means, standard deviation, T test, and Spearman correlation coefficients used as statistical techniques. Results of T test indicate a different statistically significant between LDC’s and MDC’s for the all dependent and independent variables, except the total population variable. The results of Spearman's correlation coefficients showed that the highest index of crop production is likely to occur among LDC’s that have a high population growth rate and more dependency ratio, while it occurs among MDC’s with the highest percentage of the population age composition (0-14). Furthermore, the results suggest that the highest food production index are more likely to occur among MDC’s that have the more growth rate of population, more growth rates of urban population, highest rate of net migration, lowest dependency ratio, highest percent of population age composition (0-14 and 15-64), and lowest percent of population age composition (65+), while it occurs among LDC’s with the high population growth rate. Moreover, the results suggest that the highest livestock production index are more likely to occur among MDC’s that have the highest growth rate of population, highest growth rate of urban population, highest rate of net migration, less ةيعارزلا مولعلل ةيبرعلا ةللمجا دللمجا عبارلا ( ددعلا 12 ) ربوتكأ 2021 49 3 dependency ratio, highest percent of population age composition (15-64), and lowest percent of population age composition (65+).
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信