| 现代种植业系统能流转化效率分析及评价——以河北省栾城县为例 |
| |
| 引用本文： | 封志明,刘爱民.现代种植业系统能流转化效率分析及评价——以河北省栾城县为例[J].地理科学进展,1998,17(4):35-40. |
| |
| 作者姓名： | 封志明 刘爱民 |
| |
| 作者单位： | 中国科学院自然资源综合考察委员会 |
| |
| 基金项目： | 国家“九五”科技攻关项目 |
| |
| 摘 要： | 能量转化效率是评价农业资源利用效率的一个综合性指标。本文在分析现代种植业系统特点的基础上，以河北省栾城县为例，研究了现代种植业系统的投入和生产特点。对系统能流分析结果表明，进入９０年代后，随着人工辅助能特别是工业辅助能投入的增加，系统能效逐渐降低。因此改进系统生产结构和投入结构，充分利用现代生物和工程技术，提高农业资源的利用效率，是实现现代农业持续发展的关键。
|
| 关 键 词： | 现代农业 农业资源 利用效率 能效 |
| 收稿时间： | 1998-07-01 |
EVALUATION AND ANALYSIS OF ENERGY CHANGE RATIO IN MODERN PLANTING EXAMPLE IN LUANCHENG COUNTY, HEBEI PROVINCE |
| |
| Feng zhiming,Liu Aimin.EVALUATION AND ANALYSIS OF ENERGY CHANGE RATIO IN MODERN PLANTING EXAMPLE IN LUANCHENG COUNTY, HEBEI PROVINCE[J].Progress in Geography,1998,17(4):35-40. |
| |
| Authors: | Feng zhiming Liu Aimin |
| |
| Institution: | Commission for Integrated Survey of Natural Resources, Chinese Academy of Sciences, Beijing 100101 |
| |
| Abstract: | Energy change ratio is a synthetical index to evaluate the utilization efficiency of agricultural resources. Based on analyses of the characteristics of modern planting system, this paper discusses the characteristics of input and production in modern planting system in Luancheng County, Hebei Province. Result of analyzing energy flow indicates that, after 1990's, as the input of artificial auxiliary energy, especially the industry auxiliary energy, was increased, energy result in system has been decreased. Improving the production construction and the input construction in system, using modern organism technology and engineer technology, and increasing utilization ratio on agricultural resources are keys to achieve sustainable development of modern agriculture. |
| |
| Keywords: | modern agriculture agricultural resources utilization ratio energy result |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《地理科学进展》浏览原始摘要信息 |
| 点击此处可从《地理科学进展》下载免费的PDF全文 |
|
