Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2017WR022385 |
Conditional Causal Mediation Analysis of Factors Associated With Cover Crop Adoption in Iowa, USA | |
Lee, Danhyang1; Arbuckle, J. Gordon2; Zhu, Zhengyuan1; Nowatzke, Laurie2 | |
2018-11-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2018 |
卷号 | 54期号:11页码:9566-9584 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The Iowa Nutrient Reduction Strategy is a statewide effort that aims to encourage voluntary adoption of conservation practices by farmers to reduce the loss of nitrogen and phosphorus that contribute to water quality impairments in the Upper Midwest and drive hypoxic conditions in the Gulf of Mexico. This work is an analysis of the first 2years (2015-2016) of a 5-year survey of Iowa farmers. We employ causal mediation analysis to examine the direct and indirect effects of key explanatory variables (e.g., information sources, nutrient management influences, involvement in watershed management activities, and conservation technical assistance) and two causally ordered mediators (farmers' awareness of and attitudes toward the Nutrient Reduction Strategy) on cover crop use. Results showed that participation in watershed activities and receipt of cost share or technical assistance had positive direct effects on cover crop use, while low levels of perceived nutrient loss mitigation self-efficacy had a negative direct effect. Information and influence of public sector soil and water conservation entities had positive indirect effects on cover crop use through awareness and attitudes, while influence of private sector agribusiness entities had negative indirect effects through those mediators. These results suggest that current strategies such as engaging farmers in watershed management activities and public sector cost share and technical assistance are increasing adoption of cover crops, but the data also point to a need to increase engagement with private sector actors to help them improve their effectiveness as conservation technical assistance providers. |
英文关键词 | agriculture water quality hypoxia cover crops adoption |
领域 | 资源环境 |
收录类别 | SCI-E ; SSCI |
WOS记录号 | WOS:000453369400054 |
WOS关键词 | MANAGEMENT PRACTICE ADOPTION ; UNITED-STATES ; FARMERS ; AGRICULTURE ; PERCEPTIONS |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/21320 |
专题 | 资源环境科学 |
作者单位 | 1.Iowa State Univ Sci & Technol, Dept Stat, Ames, IA 50011 USA; 2.Iowa State Univ Sci & Technol, Dept Sociol, Ames, IA 50011 USA |
推荐引用方式 GB/T 7714 | Lee, Danhyang,Arbuckle, J. Gordon,Zhu, Zhengyuan,et al. Conditional Causal Mediation Analysis of Factors Associated With Cover Crop Adoption in Iowa, USA[J]. WATER RESOURCES RESEARCH,2018,54(11):9566-9584. |
APA | Lee, Danhyang,Arbuckle, J. Gordon,Zhu, Zhengyuan,&Nowatzke, Laurie.(2018).Conditional Causal Mediation Analysis of Factors Associated With Cover Crop Adoption in Iowa, USA.WATER RESOURCES RESEARCH,54(11),9566-9584. |
MLA | Lee, Danhyang,et al."Conditional Causal Mediation Analysis of Factors Associated With Cover Crop Adoption in Iowa, USA".WATER RESOURCES RESEARCH 54.11(2018):9566-9584. |
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