| Soil nutrients in relation to vertical roots distribution in the riparian zone of Three Gorges Reservoir, China | |
Zhong Ronghua1,2; Hu Jinming1,2; Bao Yuhai3 ; Wang Fei1,2; He Xiubin3
| |
| Corresponding Author | He Xiubin |
| 2018 | |
| Source Publication | JOURNAL OF MOUNTAIN SCIENCE
 |
| ISSN | 1672-6316 |
| EISSN | 1993-0321 |
| Volume | 15Issue:7Pages:1498-1509 |
| Subtype | Article |
| Contribution Rank | 3 |
| Abstract | Since the impoundment of the Three Gorges Reservoir (TGR), the riparian zone has been subjected to numerous environmental changes. This study was conducted to recognize the distribution of grass roots and its impacts on soil nutrients in the water level fluctuation zone of TGR. Roots of four predominant herbaceous plants in the study area, specifically, Cynodon dactylon, Hemarthria altissima, Hemarthria compressa, and Paspalum paspaloides, and their corresponding relation with soil nutrient contents were investigated. Root surface area density was determined with WinRHIZO, and the relationships of root distribution with soil depths and soil nutrient contents were studied. The results indicates that most roots are distributed in the top soil layer of 0-10 cm. Estimated root surface area density for the selected grass species ranges from 0.16 to 13.44 cm2/cm3, and decreases exponentially with an increase in soil depth. Soil organic matter and total nitrogen contents are significantly lower on bare control area than the corresponding values on the grasslands. Total nutrient contents on grasslands of C. dactylon and H. compressa are higher than those of other grass areas. Root length density and root surface area density are significantly correlated with soil organic matter and total nitrogen content for the four grasslands. The present results suggests that plant roots have significant effects on the distribution of soil nutrients in soil profiles in the riparian zone along the TGR. Nevertheless, additional investigations are needed to reveal the specific interactions between plant roots distribution, soil nutrients and water level fluctuations. |
| Keyword | Roots distribution Soil nutrients Water level fluctuations Riparian zone Root surface area density Root length density |
| DOI | 10.1007/s11629-017-4719-y |
| Indexed By | SCI |
| Language | 英语 |
| Quartile | 4区 |
| TOP | 否 |
| WOS ID | WOS:000438468900009 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/23471 |
| Collection | 山地表生过程与生态调控重点实验室 |
| Affiliation | 1.Yunnan Key Laboratory of International Rivers and Transboundary Eco–security, Kunming 650091, China; 2.Institute of International Rivers and Eco–security, Yunnan University, Kunming 650091, China; 3.Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China |
| Recommended Citation GB/T 7714 | Zhong Ronghua,Hu Jinming,Bao Yuhai,et al. Soil nutrients in relation to vertical roots distribution in the riparian zone of Three Gorges Reservoir, China[J]. JOURNAL OF MOUNTAIN SCIENCE,2018,15(7):1498-1509. |
| APA | Zhong Ronghua,Hu Jinming,Bao Yuhai,Wang Fei,&He Xiubin.(2018).Soil nutrients in relation to vertical roots distribution in the riparian zone of Three Gorges Reservoir, China.JOURNAL OF MOUNTAIN SCIENCE,15(7),1498-1509. |
| MLA | Zhong Ronghua,et al."Soil nutrients in relation to vertical roots distribution in the riparian zone of Three Gorges Reservoir, China".JOURNAL OF MOUNTAIN SCIENCE 15.7(2018):1498-1509. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Soil nutrients in re（787KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment