检索结果-南通市图书馆

Determinants of Adaptation to Climate Change:A Case Study of rice farmers in Western Province,Iran

Chinese Geographical Science 2022年第1期32卷 110-126页

作者： JAMSHIDI Alireza JAMSHIDI Masomeh ABADI Bijan Department of Geography Faculty of Literature and HumanitiesUrmia UniversityUrmia 57561-51818Iran Department of Entrepreneurship and Rural Development Ham UniversityHam 14666-64891Iran Department of Biosystem Mechanics Engineering Faculty of AgricultureUniversity of MaraghehMaragheh 55181-83111Iran

The decisions made by agricultural households to adjust to climate change(CC)in Iran are not well known.This study is intended to investigate the influence of perceptions and socioeconomic,institutional features on farmers’adaptation decisions about CC,which constitute the hypothetical statements of the study.We undertook a survey of 200 farm householders from 31 villages of Ilam Province,situated in the western Iran,as randomly selected.The result discloses that the proposed discriminant model matches the dataset well,with a strong effect size of partial eta-squared(η^(2)=0.38).The analysis further signals that adapters are younger and more welleducated than non-adapters.Adapters are also knowledgeable about CC risks and institutional policy barriers.The adapters have subsidiary work,better access to credit,and have good contacts with expansion agents and specialists.The paper concludes that government authorities should provide farmers with the enriched capabilities and competencies enabling them to adapt to CC.

关键词： climate change(CC) drought adaptation management rice farmers Iran

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Do large-scale farmers use more pesticides? Empirical evidence from rice farmers in five Chinese provinces

引用

Journal of Integrative Agriculture 2020年第2期19卷 590-599页

作者： QIN Shi-le LU Xin-ye Institute of Agricultural Economics and Development Chinese Academy of Agricultural Sciences

It is of great theoretical and practical significance to understand the rules of the differences in pesticide use behaviors between large-scale and small-scale farmers,so as to regulate the behavior of farmers differently and improve the quality and safety of rice.The overall pesticide use behavior of large-scale farmers was characterized by large doses and high application frequency,while that of small-scale farmers was characterized by small doses and low application frequency.The econometric test showed that(i)the proportion of staple food ration has a significant negative impact on the single dose exceeding the standard and pesticide application frequency of small-scale farmers,and the increase of the proportion of staple food ration will reduce the demand among small-scale farmers for pesticides;(ii)yield effect has a greater impact on the frequency of pesticide application by large-scale farmers,and the large yield effect will increase the frequency of pesticide application among large-scale farmers.Therefore,in pesticide use behaviors,large-scale farmers should reduce pesticide quantity and increase efficiency,while small-scale farmers improve the level of plant protection.

关键词： pesticide use behavior rice farmers scale management

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Perceptions of rice farmers towards Production Constraints: Case Study of Niger State of Nigeria and Hainan of China

引用

Journal of Agricultural Chemistry and Environment 2016年第1期5卷 20-30页

作者： Ahmed Abdul-Gafar Shiwei Xu Wen Yu Agricultural Information Institute Graduate School of Chinese Academy of Agricultural Sciences Beijing China Partnership and Linkages Agricultural Research Council of Nigeria (ARCN) Abuja Nigeria

rice yield is still low in Nigeria despite the ecological advantages. Several challenges has been traced it production. The study intend to investigate if other rice producing nations are faced with similar challenges and at what magnitude and more importantly, what can be learn to improve the rice yield in Nigeria. Based on 2013/2014 survey, a total sample of 400 famers were randomly interviewed;164 from Niger State of Nigeria and 236 from Hainan province of China. The study collate the perception of farmers to rice production constraints categorized into biotic, abiotic and socioeconomics. Biplot analysis was employed to examine multivariate pattern of their perceptions towards production constraints. The multivariate technique simultaneously displaying different yield levels and factor constraints in data matrix providing the inter-unit distances, variance and correlations of variables. According to the study, Niger state farmers identified socioeconomic constraint as the major factors to production and attributed it to lack of or insufficient investment while the Hainan farmers majorly identified abiotic constraints. The study also indicated that great potential remain to further improve rice yield in both regions especially in Nigeria given the appropriate investment on essential inputs. This study is of great use to extension officers more so, given the investment in Africa, policy makers take advantage of the bilateral and multilateral relationship to invest ease transfer of agricultural information and technologies between or among partners.

关键词： rice farmers Production Constraints Biplot Analysis Niger State Hainan Province

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Mechanization and efficiency in rice production in China

引用

Journal of Integrative Agriculture 2021年第7期20卷 1996-2008页

作者： SHI Min Krishna P.PAUDEL CHEN Feng-bo College of Economics&Management South China Agricultural UniversityGuangzhou 510642P.R.China Department of Agricultural Economics and Agribusiness Louisiana State University(LSU)and LSU Agricultural CenterBaton RougeLouisiana 70803USA

Agricultural mechanization and custom machine services have developed rapidly in China,which can influence rice production efficiency in the future.We calculate technical efficiency,allocative efficiency,and scale efficiency using data collected in 2015 from a face-to-face interview survey of 450 households that cultivated 3096 plots located in the five major rice-producing provinces of China.We use a one-step stochastic frontier model to calculate technical efficiency and regress the efficiency scores on socio-demographic and physical land characteristics to find the influencing variables.Variables influencing technical efficiency are compared at three different phases of rice cultivation.We also calculate technical efficiency by using the Heckman Selection Model,which addresses technological heterogeneity and self-selection bias.Results indicate that:(1)the average value of technical efficiency using a one-step stochastic frontier model was found to be 0.74.When self-selection bias is accounted for using the Heckman Selection Model,the average value of the technical efficiency increases to 0.80;(2)mechanization at the chemical application phase has a positive effect on technical efficiency,but mechanization does not affect efficiency at the plowing and harvesting phases;(3)machines are overused relative to both land and labor,and high machine input use on the small size of landholding has resulted in allocative inefficiency;(4)rice farmers are overwhelmingly operating at a sub-optimal scale.Future policies should focus on encouraging farmland transfer in rural areas to achieve scale efficiency and allocative efficiency while promoting mechanization at the chemical application phase of rice cultivation to improve technical efficiency.

关键词： technical efficiency allocative efficiency scale efficiency rice farmers stochastic frontier function

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

非农就业对农户碳排放行为的影响研究

引用

生态环境与保护 2014年第1期

作者：王珊珊张广胜

随着非农就业的增加，兼业和土地流转现象普遍存在，这将不可避免地影响农户的能源消耗、化肥施用等农业碳排放行为。本文基于辽宁省辽中县稻农的调研数据，建立Ordered probit模型，实证研究了非农就业对农户农业碳排放行为的影响。结... 详细信息

随着非农就业的增加，兼业和土地流转现象普遍存在，这将不可避免地影响农户的能源消耗、化肥施用等农业碳排放行为。本文基于辽宁省辽中县稻农的调研数据，建立Ordered probit模型，实证研究了非农就业对农户农业碳排放行为的影响。结果表明，兼业将促进稻农的高碳生产行为，提高地块集中程度有利于稻农采取低碳生产行为，扩大种植规模将提高稻农的农业碳密度，但考虑规模经济对单产的影响，扩大种植规模可能降低农业碳成本。在此基础上，本文提出了促进农户低碳生产行为的政策建议，包括促进兼业农户分化，推进适度规模经营和减小土地细碎化程度等。

关键词：农业碳排放非农就业 Ordered probit模型稻农农户行为　　agricultural carbon emission off-farm employment ordered probit model rice farmers rural household behavior

来源：人大复印报刊资料评论

在线全文

人大复印报刊资料

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：