期刊文献+

荒漠─绿洲草地农业系统的耦合与模型 被引量:69

Models of Coupling Agro-grassland Systems in Desert-oasis Region
下载PDF
导出
摘要 本文探讨了山地子系统,绿洲子系统和荒漠子系统所组成的链状耦合系统─—荒漠─球洲草地农业系统的耦合效益与它的模型。提出了与之相应的线性规划与系统动力学模型,优化后的结果表明,在保持生态系统正常运转,永续利用的条件下,系统耦合后的社会总体效益可提高3.7倍,畜牧经济效益提高15.72倍。 In this paper discussed the coupling effect between the subsystems of agricuItural pred uction in theareas of mountains,oases and deserts within the general agro-grassland system in the Hexi Corridor,GansuProvince. The chain-like coulping relationshipe between the subsystems were described and optimised by alinear programming and the dynamic models,The results of modeling indicate that the optimal couplingmeasures would increase economic returns to a level of 3.7 times as much as the present one for the wholesystem and 15.72 times for livestock preduction only,without disturbing the normal functions andsustainability of the local ecosystem.
出处 《草业学报》 CSCD 1995年第2期11-19,共9页 Acta Prataculturae Sinica
基金 国家自然科学基金
关键词 系统耦合 荒漠 绿洲 草地 农业系统 coupling system,agro-grassland systems in desert-oasis region,the dynamic model
  • 引文网络
  • 相关文献

参考文献5

二级参考文献6

共引文献173

同被引文献824

引证文献69

二级引证文献871

;
使用帮助 返回顶部