Knowledge Resource Center for Ecological Environment in Arid Area
| 项目编号 | 31500368 |
| 高寒矮嵩草草甸对放牧干扰的响应与自适应：基于生态化学计量学的系统稳定性评价 | |
| 林丽 | |
| 主持机构 | 中国科学院西北高原生物研究所 |
| 开始日期 | 2016 |
| 结束日期 | 2018 |
| 资助经费 | 200000(CNY) |
| 项目类别 | 青年科学基金项目 |
| 资助机构 | CN-NSFC（国家自然科学基金） |
| 语种 | 中文 |
| 国家 | 中国 |
| 英文简介 | Alpine Kobresia humilis meadow is one of the main vegetation types in Alpine grasslands. Its ecosystem and natural environment are inherently fragile and instable. The primarily effect of human activities on alpine meadow is grazing, and degradation is the main community succesion process. Over the past three decades, pasture managers have accepted different management styles on alpine meadow, leading to distinct degree degradation stages. But there are lacking in quantitative indicators in diagnosing the healthy condition and the chemical adjustment patterns in responding to interference in the alpine meadow succession process. So this item designed series experiments will use the method of plant community quantitative characteristic survey - plant community chemical property - control experiment to research the reactions of alpine meadow ecosystem to the human interference. All data in the experiment will be divided into two groups, one is the input in radial basis function (RBF) model, including C, N and P stoichiometry in plant-soil system, the other one is the output, including plant community quantitative characteristic. Besides that we will use the information capacity method in the plant-soil system to determine the key nodes in alpine meadow degradation process. Our aims are to clarify the couple relationship in soil-plant ecological stoichiometry characteristics and to estimate the healthy conditions in alpine meadow. It will be more useful in exploring alpine meadow stability maintenance mechanism, and selecting the appropriate management measures to keep the meadow in sustainable development status in Qing-Tibet plateau. |
| 中文关键词 | 内稳性 ; 生态化学计量学 ; 动态平衡理论 ; 碳氮磷比 |
| 来源机构 | 中国科学院西北生态环境资源研究院 |
| 资源类型 | 项目 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/346864 |
| 推荐引用方式 GB/T 7714 | 林丽.高寒矮嵩草草甸对放牧干扰的响应与自适应：基于生态化学计量学的系统稳定性评价.2016. |
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