Knowledge Resource Center for Ecological Environment in Arid Area
| 项目编号 | 41501313 |
| 生物炭施用对丹江口库区坡耕地水土与氮磷流失的影响机理研究 | |
| 李志国 | |
| 主持机构 | 中国科学院武汉植物园 |
| 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 | The Danjiangkou reservoir is source area of the middle route project of South – North water transfer. Coordinated development of soil erosion and food supply of sloping land in Danjiangkou reservoir is an urgent problem need to be solved presently. This project intend to address this issue by improving soil aggregate structure, water binding capacity, nutrient adsorption and plant nutrient utilization of slope land with use of biochar soil amendments. Runoff plot trials and laboratory simulation experiments will be carried out in the Danjiangkou reservoir area to study the regulate effects and mechanisms of biochar on soil erosion, nutrient loss and crop yields. The main research contents include: ① effects of biochar on runoff, soil loss, water soluble nitrogen and phosphorus contents of runoff, particulate nitrogen and phosphorus contents of runoff, soil aggregate features and yields; ② soil physical structure mechanisms, soil water movement mechanisms, transport mechanisms of nitrogen and phosphorus nutrient in soil-plant system with biochar to control nitrogen, phosphorus, soil and water loss on sloping land; ③ regulatory function of biochar in the whole processes of rainfall infiltration, runoff, soil loss, and nitrogen and phosphorus nutrient losses. This project aims to reveal the regulation mechanism of biochar on nitrogen, phosphorus, soil and water loss, and yields of sloping land. The results will provide the scientific basis and effective technical support for applying biochar to control runoff, the utilization of agricultural waste, and biochar application in agriculture. |
| 中文关键词 | 坡耕地 ; 生物炭 ; 养分流失 ; 土壤侵蚀 ; 影响机理 |
| 来源机构 | 中国科学院武汉植物园 |
| 资源类型 | 项目 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/346959 |
| 推荐引用方式 GB/T 7714 | 李志国.生物炭施用对丹江口库区坡耕地水土与氮磷流失的影响机理研究.2016. |
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