摘要
通过分析开封沙地试验区农林牧复合生态系统基础资源、发展特点、组成与结构特征,论述了其生物生产、能量流动与物质循环三大功能。结果表明,生物生产性能不断提高,能量流动日趋优化。物质投入、产出比例尚待进一步调整,K素亏缺现象仍然严重。
Three functions of bio-production, energy flow and material cycling are discussed based on analysis of the basic resources,characters of development,composition and structure of the integrated eco-system of Kaiteng sandy experimental region. Results show that the system's bio-productivity is increasing,and energy flow is becoming more optimum,while ratio of material output to input should be improved, and K deficiency is still very serious.
出处
《生态农业研究》
CSCD
1997年第2期37-41,共5页
Chinese Journal of Eco-agriculture
基金
"八五"国家科技攻关项目"开封沙地试验区农业持续发展综合技术研究"部分内容
关键词
沙地
试验区
农林牧
复合生态系统
Sandy experimental region,Integrated eco-system of farming,forestry and animal husbandary, System's function
