| 沈阳市桃仙镇农业生态系统能流结构分析 |
| |
| 引用本文： | 赵天宏,罗常国,赵艺欣,丁玉荣.沈阳市桃仙镇农业生态系统能流结构分析[J].沈阳农业大学学报,1999,30(5):494-497. |
| |
| 作者姓名： | 赵天宏 罗常国 赵艺欣 丁玉荣 |
| |
| 作者单位： | 沈阳农业大学农学院，辽宁沈阳110161 |
| |
| 摘 要： | 以桃仙镇农业生态系统为研究对象，运用系统分析方法，着重对农田子系统和畜牧业子系统6年的能流结构作了比较全面的分析与总结。结果表明：全系统的能量产投比为1．65。农田的光能利用率低于1％，在光能利用上潜力极大；第一性生产的人工辅助能主要依赖于系统外输入；主要畜禽的饲料能量转化率在10％～20％之间。在以上研究的基础上，提出了桃仙镇农业持续发展的调控对策。
|
| 关 键 词： | 农业生态系统 能流 人工辅助能 农田子系统 畜牧业子系统 持续发展 |
| 文章编号： | 1000-1700(1999)05-0494-04 |
| 修稿时间： | 1999年2月9日 |
An Analysis of Energy Flow Structure in Taoxian Agroecosystem |
| |
| ZHAO Tian-hong,LUO Chang-guo,ZHAO Yi-xin,DING Yu-rong.An Analysis of Energy Flow Structure in Taoxian Agroecosystem[J].Journal of Shenyang Agricultural University,1999,30(5):494-497. |
| |
| Authors: | ZHAO Tian-hong LUO Chang-guo ZHAO Yi-xin DING Yu-rong |
| |
| Abstract: | Taoxian agroecosystem and the etaluation were studied by the method of systematic analysis. The resultsshowed, firstly, total input-output energy ratio has been arrived about 1.65. The utilization rate of solar energy infarmland is below one per cent, which has great Potentialities. Secondly, in the first production, the great quantity ofartifical supplementary energy depends on external industrial energy input. Thirdly, the stock feed converson tale ofmain livesock changes between ten and twenty percent. Based on studies, rcadjusting measures for sustainabledevelopment in agriculture are put forward. |
| |
| Keywords: | agroecosystem energy flow artifical supplementary energy farmland subsystem animal husbandry subsystem sustainable development |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
