| 大坝运行对水库消落带土壤环境影响研究进展 |
| |
| 引用本文： | 周紫璇,陆颖,钟荣华,毕晓静,袁旭,敦越.大坝运行对水库消落带土壤环境影响研究进展[J].水文,2019,39(1):15-19. |
| |
| 作者姓名： | 周紫璇 陆颖 钟荣华 毕晓静 袁旭 敦越 |
| |
| 作者单位： | 云南大学国际河流与生态安全研究院;云南省国际河流与跨境生态安全重点实验室 |
| |
| 基金项目： | 国家重点研发计划项目(2016YFA0601601)；云南省自然科学研究重点项目(2017FA021)；中国华能集团公司总部科技项目(HNKJ13-H17-03)；国家自然科学基金项目(41601296)； |
| |
| 摘 要： | 水库消落带土壤环境对水库水位变化的响应非常明显。通过分析大坝运行下水库消落带土壤理化性质、重金属、微生物特性和土壤侵蚀变化特征,总结水位波动对消落带土壤性质的影响过程与趋势。研究表明水库消落带土壤历经长时期干湿交替过程后,其物理性质发生较大改变,但具体变化过程和趋势仍存争议。土壤化学性质中,碳、氮和磷元素迁移转化趋势明显,但各不相同。土壤重金属元素时空分异特征改变。土壤微生物总体上呈减少趋势,并且在海拔梯度上差异显著。土壤侵蚀是消落带面临的主要环境问题。未来应采用物理模型方法,定量分析水位与土壤性质相关关系,并加强对西南高山峡谷区高坝大库消落带的研究。
|
| 关 键 词： | 水库消落带 土壤环境 干湿交替 研究进展 土壤理化性质 |
| 收稿时间： | 2017/11/25 0:00:00 |
Research Progress on Soil Environment of Water-level Fluctuation Zone Affected by Dam Operation |
| |
| ZHOU Zixuan,LU Ying,ZHONG Ronghu,BI Xiaojing,YUAN Xu,DUN Yue.Research Progress on Soil Environment of Water-level Fluctuation Zone Affected by Dam Operation[J].Hydrology,2019,39(1):15-19. |
| |
| Authors: | ZHOU Zixuan LU Ying ZHONG Ronghu BI Xiaojing YUAN Xu DUN Yue |
| |
| Institution: | 1. Institute of International Rivers and Eco-security, Yunnan University, Kunming 650091, China;2. Yunnan Key Laboratory of International Rivers and Transboundary Eco-security, Kunming 650091, China |
| |
| Abstract: | It is obvious that the soil environment of water-level fluctuation zone response to the dam operation. The paper summerizedthe process and trend of soil characteristics affected by the water level fluctuation through analyzing the changes of soilphysicochemical properties, heavy metal content, microbial characteristics, and soil erosion characteristics under the operation ofdam. The research shows that soil physical properties have changed a lot since the soil experienced a long period of dry-wet alternation, but the specific changes of the process and trends are still controversial. The migration and transformation of soil chemicalproperties, such as carbon, nitrogen and phosphorus, have different but obvious trends. The temporal and spatial distribution of soilheavy metal elements has changed. Soil microorganisms generally show a decreasing trend after flooded, and it also shows obviousdifference on elevation gradients. Soil erosion is the main environmental problem of water-level fluctuation zone. It is suggested thatthe physical models should be applied to quantitatively analyze the related relation between the soil properties and water level, andthe water-level fluctuation zone of giant reservoirs in southwest China should be paid more attention. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《水文》浏览原始摘要信息 |
| 点击此处可从《水文》下载免费的PDF全文 |
|
