| مشخصات مقاله | |
| ترجمه عنوان مقاله | کاهش سطح آب دریاچه دانگینگ رودخانه میانی یانگ تسه در واکنش به ساخت سد در مقیاس بزرگ: تجزیه و تحلیل 60 ساله |
| عنوان انگلیسی مقاله | Lowering water level of Dongting lake of the Mid-Yangtze River in response to large-scale dam construction: A 60-year analysis |
| انتشار | مقاله سال 2021 |
| تعداد صفحات مقاله انگلیسی | 10 صفحه |
| هزینه | دانلود مقاله انگلیسی رایگان میباشد. |
| پایگاه داده | نشریه الزویر |
| نوع نگارش مقاله |
مقاله پژوهشی (Research Article) |
| مقاله بیس | این مقاله بیس میباشد |
| نمایه (index) | Scopus – Master Journals List – JCR |
| نوع مقاله | ISI |
| فرمت مقاله انگلیسی | |
| ایمپکت فاکتور(IF) |
4.139 در سال 2020 |
| شاخص H_index | 159 در سال 2020 |
| شاخص SJR | 1.346 در سال 2020 |
| شناسه ISSN | 0169-555X |
| شاخص Quartile (چارک) | Q1 در سال 2020 |
| فرضیه | ندارد |
| مدل مفهومی | دارد |
| پرسشنامه | ندارد |
| متغیر | دارد |
| رفرنس | دارد |
| رشته های مرتبط | مهندسی عمران |
| گرایش های مرتبط | سازه، محیط زیست، آب و سازه های هیدرولیکی |
| نوع ارائه مقاله |
ژورنال |
| مجله | ژئومورفولوژی – Geomorphology |
| دانشگاه | گروه منابع آب و مهندسی بندر ، دانشکده مهندسی عمران ، دانشگاه فوژو ، چین |
| کلمات کلیدی | بار رسوبی، تخلیه آب، سطح آب، ساخت سد، دریاچه دانگینگ، رودخانه یانگ تسه میانی |
| کلمات کلیدی انگلیسی | Sediment load, Water discharge, Water level, Dam construction, Dongting Lake, Middle Yangtze River |
| شناسه دیجیتال – doi |
https://doi.org/10.1016/j.geomorph.2021.107894 |
| کد محصول | E15682 |
| وضعیت ترجمه مقاله | ترجمه آماده این مقاله موجود نمیباشد. میتوانید از طریق دکمه پایین سفارش دهید. |
| دانلود رایگان مقاله | دانلود رایگان مقاله انگلیسی |
| سفارش ترجمه این مقاله | سفارش ترجمه این مقاله |
| فهرست مطالب مقاله: |
| Abstract Keywords Introduction Study area Material and methods Results Discussion Conclusions Declaration of competing interest Acknowledgement References |
| بخشی از متن مقاله: |
| Abstract River-lake systems, crucial to both the ecological environment and societal development, have been affected by increasing anthropogenic activities in addition to climate and environmental changes. Here, annual water discharge and sediment load data (1956–2017) and rainfall data (1960–2016) from Dongting Lake in the middle catchment of the Yangtze River were analysed at four major inlets and one outlet, and their connections with lake level variations were evaluated using multiple analytical methods. The results show that minor fluctuations were found in rainfall and discharge during the study period, but the sediment load entering Dongting Lake decreased significantly from 231 mt/year (before 1969) to 123 mt/year (1970–2002) and then 17 mt/year (after 2003, post TGD). The variation in the sediment was mainly induced by increasing anthropogenic activities in the lake system. During period 1 (before 1969), human impact was weak compared to the dominant natural forces. However, anthropogenic force showed an increasing contribution to the loss of sediment load since then, as it increased from 43.0% (1970–1987, post cut-off engineering) to 64.8% (1988–2002, post Gezhou Dam) and extended to 90.2% during 2003–2017 (post TGD). Nevertheless, continuous sediment accumulation over the past decades in the lake has caused a rising water level. During period 1, high sediment input contributed to an average annual increase of 13.96 cm in the lake level, but it decreased significantly to 1.94 cm year−1 during 1970–2002 due to intensive anthropogenic regulations. Since 2003, the completion of the TGD intercepted abundant sediment, eventually leading to a shift from net deposition to net loss of the sediment budget in Dongting Lake, and consequently, the lake level fell. In the future, if the net sediment supply was kept below ~18 mt/ year, the lake level would continue to fall, causing severe problems to the lake ecosystem, especially during drought years. |