A rule of hydrological regulating on nutritional status of Poyang Lake, since the operation of the Three Gorges Dam
文献类型：期刊论文
| 作者 | Ding, Yuekui; Wang, Shengrui; Zhang, Wenqiang; Feng, Minglei; Yu, Ruihong |
| 刊名 | ECOLOGICAL INDICATORS
 |
| 出版日期 | 2019-09-01 |
| 卷号 | 104页码:535-542 |
| 关键词 | Nutritional status Hydrological regulation Poyang Lake Three Gorges Dam |
| ISSN号 | 1470-160X |
| 英文摘要 | Anthropogenic activities have aggravated nutritional status of lakes. Hydrological regime of Poyang Lake has been altered since the operation of the Three Gorges Dam (TGD). Will this further affect the nutritional status of Poyang Lake? We studied the dynamic changes of the nutritional status of Poyang Lake between 2003 and 2015 under this new hydrological regime. A regulating rule of hydrological regime on lake nutritional status was found, in which change in water storage and accompanying nutrient input acted as the dominant influencing factors. The rule was represented as a fitting function of the ratio of change in storage ((Delta)Q, (Delta)Q = Q(outflow) - Q(inflow)) to nutrient input (TN - TP)(input)) and the nitrogen and phosphorus concentration in the lake water. The specific functional formulas were as follows: y(1) = 148.32x(2) - 362.51x + 229.83 (R-2 = 0.8771, lower boundary) and y(2) = -74.92x(2) + 135.25x - 17.139 (R-2 = 0.9049, upper boundary) for TN; y(1)' = 94009x(2) - 24302x + 1345 (R-2 = 0.9729, lower boundary) and y(2)' = -68439x(2) + 7588x + 514.42 (R-2 = 0.8588, upper boundary) for TP. In the lake management, the hydrological regulating of the upper boundary and the lower boundary should be expressed as: the range of (Delta)Q/TNinput was 8.22-43.07 and 8.35-35.06 respectively, similarly, 316.64-723.98 and (-218.37)-523.33 of (Delta)Q/TPinput range. This rule applied to the following scenarios: concentrations of TN and TP were below 1.60 mg L-1 and 0.133 mg L-1, and continue to increase over a 4-5 years. This study provided a key practical reference for the management of dam-impact lakes worldwide. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/42618]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 作者单位 | 1.Inner Mongolia Key Lab River & Lake Ecol, Hohhot 010021, Peoples R China 2.Beijing Normal Univ, Coll Water Sci, Beijing 100875, Peoples R China 3.Inner Mongolia Univ, Coll Ecol & Environm, Hohhot 010021, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ding, Yuekui,Wang, Shengrui,Zhang, Wenqiang,et al. A rule of hydrological regulating on nutritional status of Poyang Lake, since the operation of the Three Gorges Dam[J]. ECOLOGICAL INDICATORS,2019,104:535-542. |
| APA | Ding, Yuekui,Wang, Shengrui,Zhang, Wenqiang,Feng, Minglei,&Yu, Ruihong.(2019).A rule of hydrological regulating on nutritional status of Poyang Lake, since the operation of the Three Gorges Dam.ECOLOGICAL INDICATORS,104,535-542. |
| MLA | Ding, Yuekui,et al."A rule of hydrological regulating on nutritional status of Poyang Lake, since the operation of the Three Gorges Dam".ECOLOGICAL INDICATORS 104(2019):535-542. |
入库方式： OAI收割
来源：生态环境研究中心
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