dimensional consolidation settlement numerical analysis of a large-scale land reclamation project

2014 ◽  
pp. 271-276
Keyword(s):  
Numerical Analysis ◽  
Large Scale ◽  
Land Reclamation ◽  
Consolidation Settlement ◽  
Reclamation Project ◽  
Large Scale Land

Morphodynamic responses of Caofeidian channel-shoal system to sequential large-scale land reclamation

2018 ◽  
Vol 165 ◽  
pp. 12-25 ◽  
Author(s):  
Huidi Liang ◽  
Cuiping Kuang ◽  
Maitane Olabarrieta ◽  
Honglin Song ◽  
Yue Ma ◽  
...  
Keyword(s):  
Large Scale ◽  
Land Reclamation ◽  
Large Scale Land

scholarly journals Oasis Evolution in Response to Human Inducedwater Resources Reallocation in South Xinjiang during Past Four Decades

2019 ◽  
Author(s):  
Yuanxu Ma ◽  
Jianping Wang ◽  
Fang Yan ◽  
Aynur Mamat
Keyword(s):  
Human Activities ◽  
Vegetation Cover ◽  
Large Scale ◽  
Land Reclamation ◽  
Regional Scale ◽  
Vegetation Coverage ◽  
Tarim River ◽  
Data Sets ◽  
Rapid Urbanization ◽  
Large Scale Land

Vegetation in drylands is sensitive to climatic changes and human activities. Remote sensing and spatial analyses provide us useful tools for monitoring long-term vegetation dynamics over large regional scale. In this study, we analyzed the oasis vegetation cover change of the Tarim Basin using Landsat data sets from six epochs, 1975s, 1990s, 2000s, 2005s, 2010s and 2014. The results show that vegetation cover of oases increases from 34600 km2 in 1975s to 101000 km2 in 2014, though there was a vegetation coverage decrease from 77600 km2 in 2000s to 42680 km2 in 2010s. The percentage of annul water consumption has increased from 34% in 1970s to 52% in 2010s in the upper Tarim River, and decreased from 15% in 1970s to 9% in 2010s in the lower Tarim River. The decrease of oases area from 2000s to 2010s probably resulted from the rapid urbanization and large scale land reclamation. Although there is an increasing trend for oases coverage, local degradation of oases especially in the northern part occurred. This may be caused by inadequate water supply of the Tarim River. The results of multiple regression show that human activities contribute 70% of oases area change. Human induced water resources reallocation and heat energy balance is the primary cause of total oasis change.

scholarly journals Study on the spatiotemporal changes and impact of reclamation areas based on remote sensing

2020 ◽  
Vol 165 ◽  
pp. 03053
Author(s):  
Liu Jiwen ◽  
Xue Linfu ◽  
Li Zhongtan
Keyword(s):  
Water Body ◽  
Large Scale ◽  
Land Reclamation ◽  
Image Data ◽  
Local Area ◽  
Social Benefits ◽  
Construction Sites ◽  
Industrial Land ◽  
Large Scale Land ◽  
Sea Area

Using Landsat TM and OLI multispectral image data, the accuracy of extracting sea area from different water body indices is compared. Finally, the improved normalized water body index (MNDWI) is selected to study the dynamic characteristics of the coastline and the progress of reclamation of Dalian in 1996, 2005, and 2015. The results show that: from 1996 to 2005, the area of land reclamation in Dalian reached 31.58km2, and 83.55km2 for 2015-2015. It is mainly used for dock construction, industrial land, aquaculture ponds, port docks, construction sites, residents Land, commercial and financial land, etc.; from 1996 to 2015, the total length of the coastline increased by 132.77km. The length of the artificial shoreline increased significantly, with its continuity in spatial distribution increased; the length of the bedrock shoreline was reduced due to the destruction of reclamation projects. Although large-scale land reclamation has brought good economic and social benefits to the local area, it also has a large impact on the marine and forest ecological environment. It is recommended to moderately develop coastal zone resources and further strengthen monitoring and supervision mechanisms.

Seawater intrusion and aquifer freshening near reclaimed coastal area of Shenzhen

2007 ◽  
Vol 7 (2) ◽  
pp. 137-145 ◽  
Author(s):  
K.P. Chen ◽  
J.J. Jiao
Keyword(s):  
Seawater Intrusion ◽  
Coastal Area ◽  
Large Scale ◽  
Land Reclamation ◽  
Groundwater Pumping ◽  
Fresh Groundwater ◽  
Saline Groundwater ◽  
Aquifer System ◽  
Large Scale Land ◽  
The Relationship

Local groundwater in coastal aquifers in Shenzhen has experienced heavy pumping since the 1980s when it began to expand very quickly from a fishing village to a modern city. Meanwhile, large-scale land reclamation was carried out to meet the needs of various urbanization projects. In this paper we analyzed the groundwater from a coastal aquifer system in Shenzhen and examined the evolution of groundwater chemistry over the last 20 years. The temporal changes of ionic ratios of rCa/(rHCO3 + rSO4) and the relationship between sodium and chloride in the coastal area over this period indicate that the aquifer experienced seawater intrusion in the 1980s but underwent gradual freshening in the 1990s. It is speculated that seawater intrusion was induced by excessive groundwater pumping and that the aquifer freshening was caused both by the recent reduction in groundwater pumping and by coastal reclamation which moved the interface between fresh groundwater and saline groundwater seaward.

Some Environmental Issues Caused by Large-scale Land Reclamation Projects

2005 ◽  
Vol 78 (5) ◽  
pp. 317-321
Author(s):  
Toshihisa ASANO ◽  
Tatsuya ITO ◽  
Yukihiro HIRAI ◽  
Osamu MATSUDA ◽  
Doo-chul KIM ◽  
...  
Keyword(s):  
Large Scale ◽  
Land Reclamation ◽  
Environmental Issues ◽  
Large Scale Land

scholarly journals Environmental Issues in the South China Sea: Legal Obligation and Cooperation Drivers

2018 ◽  
Vol 1 (1) ◽  
pp. 8 ◽  
Author(s):  
Nguyen Chu Hoi ◽  
Vu Hai Dang
Keyword(s):  
South China Sea ◽  
Marine Environment ◽  
South China ◽  
Large Scale ◽  
Land Reclamation ◽  
The South China Sea ◽  
Legal Obligation ◽  
The South ◽  
China Sea ◽  
Large Scale Land

Recently, we have been witnessing a critical level of a the degradation of the marine environment and depletion of fish stocks in the South China Sea. This has many adverse consequences on the politics, economics of the countries in the region as well as on the socio-economic life of the coastal population. One of the activities that has been causing serious damage to the marine environment and living resources of the South China Sea is the large-scale land reclamation and artificial island construction undertaken by China in the Spratly and Paracel islands recently. These activities have caused severe harm to the precious coral reef environment and thus, violated the obligation to preserve and protect fragile ecosystems and the habitat of depleted, threatened or endangered species under the international law of the seaThe paper explores the impact of China’s large-scale land reclamation and artificial island construction activities on the marine biodiversity of the South China Sea, explains what the legal obligation under the international law of States to protect and preserve the marine environment is and suggests a number of options in order to bring a halt to such activities and restore the damaged marine ecosystem. The paper puts particular emphasis on the cooperation drivers torwards a healthy, prosperous and peaceful South China Sea, which also contribute to the management and possibly, resolution of the current disputes in this region.Keywords: marine environmental issues, legal obligation, cooperation drivers, large-scale reclamation, artificial islands, blue solutions and fragile ecosystems.

Coal mining-disturbed land reclamation laws

2020 ◽  
pp. 15-26
Author(s):  
T. V. Galanina ◽  
M. I. Baumgarten ◽  
T. G. Koroleva
Keyword(s):  
Large Scale ◽  
Land Reclamation ◽  
Mining Industry ◽  
Development Program ◽  
Soil Disturbance ◽  
Open Pit ◽  
Open Pit Mining ◽  
Disturbed Land ◽  
Critical Problems ◽  
Production Output

Large-scale mining disturbs wide areas of land. The development program for the mining industry, with an expected considerable increase in production output, aggravates the problem with even vaster territories exposed to the adverse anthropogenic impact. Recovery of mining-induced ecosystems in the mineral-extracting regions becomes the top priority objective. There are many restoration mechanisms, and they should be used in integration and be highly technologically intensive as the environmental impact is many-sided. This involves pollution of water, generation of much waste and soil disturbance which is the most typical of open pit mining. Scale disturbance of land, withdrawal of farming land, land pollution and littering are critical problems to the solved in the first place. One of the way outs is highquality reclamation. This article reviews the effective rules and regulations on reclamation. The mechanism is proposed for the legal control of disturbed land reclamation on a regional and federal level. Highly technologically intensive recovery of mining-induced landscape will be backed up by the natural environment restoration strategy proposed in the Disturbed Land Reclamation Concept.

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