Spatial and temporal dynamics of nutrients in riparian soils after nine years of operation of the Three Gorges Reservoir, China
文献类型：期刊论文
| 作者 | Ye, Chen1; Chen, Chengrong2,3; Butler, Orpheus M.2,3; Rashti, Mehran Rezaei2,3; Esfandbod, Maryam2,3; Du, Ming1; Zhang, Quanfa1 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2019-05-10 |
| 卷号 | 664页码:841-850 |
| 关键词 | Nutrient distribution patterns Hydrological conditions Soil particle size Riparian zone Three Gorges Reservoir |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2019.02.036 |
| 英文摘要 | The construction and operation of the Three Gorges Reservoir (TGR), the largest hydropower dam in the world, has had significant consequences for the hydrology of riparian zones along the Yangtze river. Little is known about how such changes in hydrology might affect the levels of nutrients and organic matter (OM) in riparian soils. We conducted a nine-year study on the spatio-temporal dynamics and dominant environmental correlates of nutrients and OM in riparian soils along a 600 km section of the Yangtze. These soils have been exposed to a disrupted hydrological regime since the TGR's establishment in 2008. Vegetation surveys were also conducted from 2012 to 2016 to assess relationships between soil chemical properties and vegetation community properties under altered hydrology. Across the stream gradient, concentrations of total potassium (K) increased by 54% since the TGR's establishment. The opposite occurred for SOM and available K, concentrations of which were 35% and 33% lower in 2016, respectively, than those of 2008. The rate of increase in total K tended to be more rapid at the middle section of the stream gradient. Moreover, concentrations of SOM, total N, total K, and available phosphorus (P) and K tended to be particularly high at the middle section. The spatio-temporal distributions of nutrients were strongly positively related to the contents of fine soil particles (i.e., silt and clay). Moreover, the aboveground biomass was negatively correlated with the nutrient dynamics. Our results indicate that the control of the nutrient release in the middle reaches and lower elevations where fine particles tend to accumulate, will be essential for maintaining the health of aquatic and riparian ecosystems upstream of the TGR. (C) 2019 Elsevier B.V. All rights reserved. |
| 资助项目 | National Natural Science Foundation of China[31570521] ; National Natural Science Foundation of China[31300441] ; Executive Office of the State Council Three Gorges Construction Committee[SX2017-022] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000460245600080 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/7493]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Chen, Chengrong; Zhang, Quanfa |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Hubei, Peoples R China 2.Griffith Univ, Australian Rivers Inst, Nathan, Qld 4111, Australia 3.Griffith Univ, Griffith Sch Environm, Nathan, Qld 4111, Australia |
| 推荐引用方式 GB/T 7714 | Ye, Chen,Chen, Chengrong,Butler, Orpheus M.,et al. Spatial and temporal dynamics of nutrients in riparian soils after nine years of operation of the Three Gorges Reservoir, China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,664:841-850. |
| APA | Ye, Chen.,Chen, Chengrong.,Butler, Orpheus M..,Rashti, Mehran Rezaei.,Esfandbod, Maryam.,...&Zhang, Quanfa.(2019).Spatial and temporal dynamics of nutrients in riparian soils after nine years of operation of the Three Gorges Reservoir, China.SCIENCE OF THE TOTAL ENVIRONMENT,664,841-850. |
| MLA | Ye, Chen,et al."Spatial and temporal dynamics of nutrients in riparian soils after nine years of operation of the Three Gorges Reservoir, China".SCIENCE OF THE TOTAL ENVIRONMENT 664(2019):841-850. |
入库方式： OAI收割
来源：武汉植物园
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