Artificial water sediment regulation scheme influences morphology, hydrodynamics and nutrient behavior in the Yellow River estuary
Artificial water sediment regulation scheme influences morphology, hydrodynamics and nutrient behavior in the Yellow River estuary
复制标题
人工调沙方案对黄河口形态、水动力和营养物行为的影响
DOI：
10.1016/j.jhydrol.2016.05.024
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发表时间：
2016-08
影响因子：
6.4
通讯作者：
Xueyan Jiang
中科院分区：
文献类型：
--
作者：
Bochao Xu;Disong Yang;William C. Burnett;Xiangbin Ran;Zhigang Yu;Maosheng Gao;Shaobo Diao;Xueyan Jiang
人类活动对水沙的控制可能在河流系统的改造和形态演变中发挥重要作用，进而影响海岸水动力和营养盐行为。我们使用地球化学示踪剂，以评估在所谓的“水沙整治计划”（WSRS）的河口形态，水动力和营养盐在黄河口，中国故意大量释放的水和沉积物的影响。研究发现，2013年WSRS后，河口出现了一个新形成的小三角洲。这一新的形态特征改变了陆地物质的分布模式，从单一的羽流到河口内的双羽流模式。研究结果表明，WSRS对研究区的影响主要表现在以下几个方面：（1）镭和营养盐浓度显著升高（2 ~ 4倍），特别是沿着两河口。(2)WSRS期间河口混合比以前强约两倍。WSRS之前和期间的平均空气混合速率分别为50 ± 26 km 2d − 1和89 ± 51 km 2d −1。(3)我们的数据是一致的磷限制，并建议化学计量为基础的磷限制更严重的WSRS期间。(4)所有来自河流的营养物质在进入近岸沃茨后的一至两周内被完全消耗。(5)在WSRS期间，受陆地营养物影响的面积要大两到三倍。因此，在研究黄河口等情况下的生态地球化学过程和营养盐收支时，应考虑人为影响，如WSRS法规引发的影响。
Anthropogenic controls on water and sediment may play important roles in river system transformations and morphological evolution, which could further affect coastal hydrodynamics and nutrient behavior. We used geochemical tracers to evaluate the influence of an intentional large release of water and sediment during the so-called “Water Sediment Regulation Scheme” (WSRS) on estuarine morphology, hydrodynamics and nutrients in the Yellow River estuary, China. We discovered that there was a newly formed small delta in the river mouth after the 2013 WSRS. This new morphologic feature altered terrestrial material distribution patterns from a single plume to a two-plume pattern within the estuary. Our results show that the WSRS significantly influenced the study area in the following ways: (1) Radium and nutrient concentrations were significantly elevated (two to four times), especially along the two river outlets. (2) Estuarine mixing was about two times stronger during WSRS than before. Average aerial mixing rates before and during WSRS were 50 ± 26 km2d−1and 89 ± 51 km2d−1, respectively. (3) Our data is consistent with P limitation and suggest that stoichiometrically based P limitation was even more severe during WSRS. (4) All river-derived nutrients were thoroughly consumed within one to two weeks after entry to near-shore waters. (5) The extent of the area influenced by terrestrial nutrients was two to three times greater during WSRS. Human influence, such as triggered by WSRS regulations, should thus be considered when studying biogeochemical processes and nutrient budgets in situations like the Yellow River estuary.
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天然Rn-222和Rn-220表明水沙调节方案（WSRS）对中国黄河口海底地下水排放的影响
影响因子：
3.4
作者：
Xu Bochao;Xia Dong;Burnett William C.;Dimova Natasha T.;Wang Houjie;Zhang Longjun;Gao Maosheng;Jiang Xueyan;Yu Zhigang
通讯作者：
Yu Zhigang
影响因子：
2.5
作者：
D. Nelson;M. Brzezinski
通讯作者：
D. Nelson;M. Brzezinski
DOI：
10.1007/978-3-642-10637-8_17
发表时间：
2012
期刊：
--
影响因子：
--
作者：
L. Zhang;J. Zhang;P. Swarzenski;Zhe Liu
通讯作者：
L. Zhang;J. Zhang;P. Swarzenski;Zhe Liu
影响因子：
2.3
作者：
Bi, Naishuang;Wang, Houjie;Yang, Zuosheng
通讯作者：
Yang, Zuosheng
DOI：
10.4319/lom.2011.9.380
发表时间：
2011-09
期刊：
Limnology and Oceanography: Methods
影响因子：
--
作者：
K. Knee;E. Garcia-Solsona;J. García-Orellana;A. Boehm;A. Paytan
通讯作者：
K. Knee;E. Garcia-Solsona;J. García-Orellana;A. Boehm;A. Paytan