西部高寒湿地系统的草地资源保护与优化利用模式研究

西部高寒湿地系统的草地资源保护与优化利用问题，是我国生态环境建设中倍受重视的科学问题。本研究以甘南的高寒湿地为研究对象，分析了高寒草地资源变化的时空分布特征及其在环境条件影响下的增长动态，采用生物控制论方法，组建了草地资源保护模型及草地放牧系统的最优控制模型。依据在甘南玛曲县高寒草地的调查结果，分别对其山地草原化草甸、山地典型草甸和沼泽草甸等草地资源的利用，建立了相应的保护指标。确定了该草地放牧系统的最优牧草资源水平和最优控制量，提出了草地资源优化利用的管理对策与措施，为草地放牧管理提供了优化模式和定量依据。

Meadow conservation and optimal utilization of the alpine wetland in the Western China

The conservation and optimal utilization of meadow resources of the western alpine wetland what is one of the most important and focused scientific problems for the Proceeding of West China development.The western alpine wetland has been studied in Gannan Tibetan Autonomous Prefecture,and the development of temporal-spatial distribution of herbage resource and the growth dynamics under environmental conditions have been analyzed.By the approach of biological control,the protection model for the meadow resource and the optimal control model for the animal husbandry system have been established.According to the investigation of alpine meadow at Maqu County in Gannan Tibetan Autonomous Prefecture,we proposed the protective index for different types of alpine meadow,such as mountain grass meadow and swamp meadow,etc.,and determined the optimal resource level and control quantity of utilization,which may be an improved pattern of and a quantitative support to the management of animal husbandry in the alpine meadow.