精品文档---下载后可任意编辑不同功能型植物对梭梭群落碳水通量的贡献的开题报告摘要：碳水循环是生态系统功能中重要的组成部分，不同功能型植物对植被群落碳水通量的贡献不同。本讨论以内蒙古英多尔诺布草原梭梭（Haliclona spinosa）群落为讨论对象，综合野外观测、定位观测、气象观测等方法，探讨了不同功能型植物对梭梭群落碳水通量的贡献。结果表明，光合有效较高的草本植物对梭梭群落的总碳吸收量贡献较大，但单体吸收量较低；而梭梭等高抗逆性植物虽然总碳吸收量较小，但单体吸收量较高，对于抵御干旱、高温等胁迫的能力较强。通过对梭梭群落不同功能型植物的碳素收支分析，可以深化理解群落生态系统的碳循环过程，为生态系统保护与管理提供科学依据。关键词：不同功能型植物；梭梭群落；碳水通量；群落碳循环Abstract:Carbon cycle is an important component of ecosystem function, and different functional plants contribute differently to the carbon and water flux of vegetation communities. In this study, the contribution of different functional plants to the carbon and water flux of the Haliclona spinosa community in the Inner Mongolia grassland was explored by combining field observation, localization observation, and meteorological observation methods. The results showed that herbaceous plants with higher photosynthetic efficiency contributed more to the total carbon absorption of the H. spinosa community, but had lower individual absorption rates; while H. spinosa and other high-stress-resistant plants had smaller total carbon absorption, but higher individual absorption rates and stronger resistance to stress such as drought and high temperature. Through the carbon balance analysis of different functional plants in the H. spinosa community, it could be possible to deepen the understanding of the carbon cycle process of the community ecosystem, and provide scientific basis for the protection and management of the ecosystem.Keywords: different functional plants; H. spinosa community; carbon and water flux; community carbon cycle
