Notice of Retraction: Assessment about the Fluence on Ecological Environment by Typical Regional Development around Bohai Sea Area

Author(s):  
Fang Ma ◽  
Rijun Hu ◽  
Guoyi Wen ◽  
Ming Du
2021 ◽  
pp. 1-28
Author(s):  
Wei Xu ◽  
Zhengyu Li ◽  
Huiyong Li ◽  
Can Zhang ◽  
Meng Zhao ◽  
...  

There are various types of mixed siliciclastic-carbonate sediments developed in the Bohai Sea area during the period of the first to second member of the Shahejie Formation (E2s1-2) of the Paleocene. We have concluded that the period of E2s1-2 was very suitable for the development of carbonate minerals and organisms because of the stable tectonic background, the weak siliciclastic influence of large source systems outside the basin, and the high salinity of the water. There were many local uplifts inside the basin during E2s1-2, and the source area, supply direction, and quantity of the local provenance varied greatly. We summarized that the mixed sediments generally developed in the intermittent and stagnant periods of the source supply, or on the flank or distal end of the source supply direction due to the absence of direct interference of terrigenous clasts. To a large extent, the formation of different types of mixed deposits is controlled by the different spatiotemporal relationship with siliciclastic supply. The background of strong source supply led to the formation of large-scale mixed deposits that were mainly composed of terrigenous clasts. Mixed deposits are mainly composed of organisms and carbonate with relatively large depositional thickness formed on the flank of source supply in the steep slope area. On the flank of source supply in the gentle slope belt, thinner mixed deposits with terrigenous clasts mainly formed and thin-layer carbonate clastic-dominated deposits formed on abandoned deltas. On the uplift of the buried hill far away from the provenance, thick mixed deposits mainly composed of bioclastic were formed whereas fine-grained mixed deposits formed under the low-energy argillaceous background.


2020 ◽  
Vol 8 (2) ◽  
pp. SF57-SF79
Author(s):  
Changgui Xu ◽  
Lu Huan ◽  
Song Zhangqiang ◽  
Jia Donghui

The Bohai Sea area is a complex lacustrine rift basin characterized by multistage rifts, polycycle superimpositions, and multiple genetic mechanisms. We recognized three types of sequence boundaries from the Paleogene strata of offshore Bohai, including 2 first-, 3 second-, and 10 third-order sequence boundaries. The third-order wedges, composed of the low-stand system tract (LST), lake expansion system tract (EST), and high-stand system tract (HST), are significant for hydrocarbon exploration. The sequence stratigraphic patterns vary in different periods. We discovered that the LST and EST are mainly developed in the rifting stage, whereas the HST is developed in the subsidence stage. Sequences developed in different depressions present significant variations, but the migration of the depocenter from the margin to the center during basin evolution can still be clearly recognized. Vertically, episodic tectonism plays an important role in controlling the formation of sequence boundaries, sequence structural features, and sequence architectural patterns. However, various rift basin marginal tectonics control the lateral sequence architectures. Because each structure belt is characterized by a unique sequence framework due to the strong influence of basin rifting processes, we establish a corresponding sequence stratigraphic model for the specific tectonic environment using process-based sequence stratigraphic methods.


2013 ◽  
Vol 779-780 ◽  
pp. 1365-1368
Author(s):  
Ying Wang ◽  
Chun Ma ◽  
Guang Yu Zhang ◽  
Nan Xu

The paper uses the research means of numerical simulation for marine pollution problem of the ocean dumps from offshore industries, which is concerned by the coastal countries; it adopts ECOM Water Quality Model. It has carried out the simulation research on those projects influence on the environment of sea area. By taking COD of wastewater as the research object, the paper confirmed the influence range of COD emission on marine ecological environment.


2017 ◽  
Vol 44 (4) ◽  
pp. 625-635 ◽  
Author(s):  
Kaijun TONG ◽  
Bo LI ◽  
Weihua DAI ◽  
Hao ZHENG ◽  
Zhannü ZHANG ◽  
...  

2021 ◽  
Vol 276 ◽  
pp. 02001
Author(s):  
Pengcheng Qiu

In order to effectively improve the construction level of Zhejiang Province’s territorial and spatial system and its spatial governance capabilities, it is necessary to redeploy the province’s territorial and spatial planning based on the actual development of Zhejiang Province. With the rapid advancement of the urban integration work in Zhejiang Province, the increasingly prominent problems such as the deterioration of the ecological environment, the chaotic order of land use, and the large differences in regional development have made land and space development and governance more difficult. In order to effectively improve this situation, this article Taking Zhejiang Province as an example, the author discussed the basic path of constructing the framework of Zhejiang’s territorial and spatial planning system, hoping to play a certain role in promoting Zhejiang’s territorial and spatial planning.


2013 ◽  
Vol 742 ◽  
pp. 432-436
Author(s):  
Wei Fan ◽  
Gai Zhen Shang

In this study, from the point of view of the ecological environment of the modern rural analysis and research on rural, ecological environment as the research object,Research programs under the overall guidance of the sustainable development strategy, the Anxin county Liulizhuang Town DongBaiZhuangBeiDui village and environmental symbiosis, in harmony with the natural the rural ecological landscape method. And to strengthen the sustainable development of the ecological environment of the Anxin county Liulizhuang Town DongBaiZhuangBeiDui village, urban and rural, regional development, and comprehensively promote the construction of a new socialist countryside and build a resource-saving, environment-friendly harmonious society to provide certain theory reference.


2019 ◽  
Vol 6 (4) ◽  
pp. 305-316 ◽  
Author(s):  
Mingcai Hou ◽  
Haiyang Cao ◽  
Huiyong Li ◽  
Anqing Chen ◽  
Ajuan Wei ◽  
...  

2014 ◽  
Vol 675-677 ◽  
pp. 444-447
Author(s):  
Han Zhang ◽  
Jian Guo Lin ◽  
Jun Zhang

According to the fact that the layout of Liaoning ocean observation stations is not perfect, through the comprehensive research, ocean observation station is sited in Yingkou, Baishawan, and simulates hydropower and the change of tidal flat accretion-erosion in the sea area after engineering to analysis the impact of building ocean observation station on Baishawan inshore. As a result, that ocean observation station is sited in Baishawan and takes oils on land to build an artificial island, hardly change hydropower and sediment accretion-erosion variation in the waters and it has no discernible effect on adjoined sea areas and shorelines. So the building scheme of the engineering has an extremely important meaning on protecting shorelines and natural environment this sea area and carrying out management and supervision.


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