Topography and land use effects on spatial variability of soil denitrification and related soil properties in riparian wetlands
文献类型：期刊论文
| 作者 | Yao, Lu2,3; Zhang, Quanfa3; Liu, Guihua3; Xiong, Ziqian2,3; Li, Shouchun1; Liu, Wenzhi3 |
| 刊名 | ECOLOGICAL ENGINEERING
 |
| 出版日期 | 2015-10-01 |
| 卷号 | 83页码:437-443 |
| 关键词 | Agricultural rivers Forested rivers Nitrogen cycles Unamended denitrification Yangtze River basin |
| ISSN号 | 0925-8574 |
| DOI | 10.1016/j.ecoleng.2015.04.094 |
| 英文摘要 | Many rivers in the Yangtze River basin have suffered from excess nitrogen due to increased human activities in recent decades. Soil denitrification in riparian wetlands is a key process for removing nitrogen from polluted surface runoff and controlling eutrophication in river ecosystems. Currently, little is known about the influence of topography and land use on the riparian denitrification characteristics in the Yangtze River basin. In this study, we used the acetylene block technique to determine the spatial variability of the soil potential and unamended dentrification rates of 42 riparian wetlands in the Han River basin of China. The results indicated that riparian soils showed great spatial variation in potential denitrification, unamended dentrification and most of the measured physical and chemical properties. Both potential and unamended dentrification rates were positively associated with soil moisture, percentage of fine substrate, organic matter and nitrogen contents, but were negatively related to soil pH and bulk density. Agricultural riparian soils had unamended denitrification rates higher than forested riparian soils. Spearman correlation analysis also indicated that a topographic factor (i.e., elevation) had a negative effect on riparian denitrification rates. Our results suggest that both topography and land use can indirectly influence the soil denitrification rates in riparian wetlands. Low-elevation areas in the agricultural riparian zone are good candidates for wetland restoration or creation for nitrogen removal and water quality improvement in the Yangtze River basin. (C) 2015 Elsevier B.V. All rights reserved. |
| 资助项目 | National Natural Science Foundation of China[31270583] ; Knowledge Innovation Program of the Chinese Academy of Sciences[Y455435L04] |
| WOS研究方向 | Environmental Sciences & Ecology ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000360812000054 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/203]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Liu, Wenzhi |
| 作者单位 | 1.Jiangxi Normal Univ, Coll Life Sci, Nanchang 330022, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yao, Lu,Zhang, Quanfa,Liu, Guihua,et al. Topography and land use effects on spatial variability of soil denitrification and related soil properties in riparian wetlands[J]. ECOLOGICAL ENGINEERING,2015,83:437-443. |
| APA | Yao, Lu,Zhang, Quanfa,Liu, Guihua,Xiong, Ziqian,Li, Shouchun,&Liu, Wenzhi.(2015).Topography and land use effects on spatial variability of soil denitrification and related soil properties in riparian wetlands.ECOLOGICAL ENGINEERING,83,437-443. |
| MLA | Yao, Lu,et al."Topography and land use effects on spatial variability of soil denitrification and related soil properties in riparian wetlands".ECOLOGICAL ENGINEERING 83(2015):437-443. |
入库方式： OAI收割
来源：武汉植物园
浏览0
下载0
收藏0
其他版本
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。