Knowledge Resource Center for Ecological Environment in Arid Area
| 项目编号 | 41501083 |
| 青藏高原连续多年冻土区（北麓河）高寒草原土壤CO2通量变化及其控制因子 | |
| 贠汉伯 | |
| 主持机构 | 中国科学院寒区旱区环境与工程研究所 |
| 开始日期 | 2016 |
| 结束日期 | 2018 |
| 资助经费 | 250000(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 | As a sensitive region to global climate change and ecologically fragile region,Qinghai-Tibetan Plateau owns a large soil carbon pool, which plays an important role in global environmental changes. Land surface process in cold region had changed a lot with the climate changeand the water-heat coupling of soil changed accordingly. This process will cause the reduction of soil organic matter input and damage of the protection layer, which gives rise to the increase of the soil organic matters decomposition rate and the positive feedback to the climate change. The evaluation of the sink and source effect of CO2 and the systematic analysis of its changing pattern and impact factors are important to the comprehensive understanding of the carbon cycle and mechanism of permafrost of the Qinghai-Tibetan Plateau.Regarding water-heat conditions of various permafrost types, this study plans to study the seasonal and diurnal changing pattern of soil CO2 flux and its relationship with environmental factors (e.g. hydrological and thermal state, active layer thickness, thawing depth) under the background of alpine meadow of Beiluhe basin over Qinghai-Tibetan Plateau. By the eddy covariance method and chamber measurements, the regional evaluation system of CO2 flux and its data quality will be established, so that the state and quantity of CO2sink and source can be determined. The study will offer theoretic base for the evaluation of the effective contribution and feedback of high-altitude permafrost to the global carbon cycle under the background of future climate change. |
| 中文关键词 | 多年冻土 ; 土壤CO2通量 ; 环境因子 |
| 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/2XILL650/346871 |
| 推荐引用方式 GB/T 7714 | 贠汉伯.青藏高原连续多年冻土区（北麓河）高寒草原土壤CO2通量变化及其控制因子.2016. |
| 条目包含的文件 | 条目无相关文件。 | |||||
| 个性服务 |
| 推荐该条目 |
| 保存到收藏夹 |
| 导出为Endnote文件 |
| 谷歌学术 |
| 谷歌学术中相似的文章 |
| [贠汉伯]的文章 |
| 百度学术 |
| 百度学术中相似的文章 |
| [贠汉伯]的文章 |
| 必应学术 |
| 必应学术中相似的文章 |
| [贠汉伯]的文章 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
