scholarly journals The impact of land use and season on the riverine transport of mercury into the marine coastal zone

2014 ◽  
Vol 186 (11) ◽  
pp. 7593-7604 ◽  
Author(s):  
Dominika Saniewska ◽  
Magdalena Bełdowska ◽  
Jacek Bełdowski ◽  
Michał Saniewski ◽  
Marta Szubska ◽  
...  
Keyword(s):  
Land Use ◽  
Coastal Zone ◽  
The Impact ◽  
Riverine Transport

Based on Artificial Intelligence Simulation Study on the Impact of Land Use on Coastal Ecological Security in China's Coastal Zone

2020 ◽  
Author(s):  
Yuelei Xu
Keyword(s):  
Land Use ◽  
Coastal Zone ◽  
Pearl River Delta ◽  
Economic Transformation ◽  
River Delta ◽  
Ecological Environment ◽  
Bohai Bay ◽  
Ecological Security ◽  
Bay Area ◽  
The Impact

<p>As a transitional area between land and ocean system, coastal zone is a sensitive area of global change, which gathers 2/3 of the global population and wealth. Under the background of coastal urbanization and ecological civilization construction in China, more attention has been attached to develop the coastal zone economy efficiently with the strong interference of human activities. However, the deficiency of a suitable method to evaluate coastal ecological environment, affects the balance between utilization and protection in the coastal zone. This research compared habitat quality in the present with that in the future, and used this as the evaluation index of the impact of land use on coastal ecological security. The impact of land use transformation on natural wetlands and the quality of natural habitats has been calculated based on the coastal land use data since 1980 and the forecast land use in 2050, which under the scenario of RCP 4.5 carbon dioxide emission simulated by FLUS model artificial intelligence. The results show that in recent 20 years, there have been obvious reclamation activities in China's coastal areas, especially in Bohai Bay area, Yangtze river delta and Pearl River Delta. From 1990 to 2010, the reclamation expansion areas are 272.49 km<sup>2</sup>，270.09 km<sup>2</sup> and 50.57 km<sup>2</sup>, respectively. With the development of economic transformation and ecological priority in the southeast coastal areas in recent years, the effect of habitat restoration will be remarkable by 2050, while habitat in Bohai Bay area and Pearl River Delta present an obvious degradation trend. These results, including the 30-metre-resolution habitat quality, can be used for reference for coastal ecological security maintenance and economic restructuring in different regions. This research will help to build the national ecological security evaluation system and formulate future policies for coastal ecological environment protection, and accelerate China's economic transformation.</p>

scholarly journals Study on the impact of coastal land use change on environment based on remote sensing data

2021 ◽  
Vol 267 ◽  
pp. 01061
Author(s):  
Liu Yong ◽  
Yunlin Chen
Keyword(s):  
Remote Sensing ◽  
Land Use ◽  
Economic Development ◽  
Coastal Zone ◽  
Remote Sensing Data ◽  
Impervious Surface ◽  
Target Object ◽  
Surface Features ◽  
Sensing Data ◽  
The Impact

The coastal zone is the bridge between the ocean and the mainland, the junction of the two ecosystems, the focus of the economic development of coastal cities and the gathering place of ports. Remote sensing technology uses the detector to receive the electromagnetic wave from the target object. After processing the information, it can distinguish the attributes of the target object. It is widely used in marine development, aerospace understanding, resource exploration and other fields.In this paper, the coastal zone of Shangyu Economic Development Zone on the south coast of Hangzhou Bay is taken as the research area. Using multi-source remote sensing data, information extraction, change monitoring and analysis are carried out from the perspective of marine and land ecosystems, and the impact of coastal development on the coastal zone is discussed. The main conclusions are as follows: (a) Using visual interpretation method, it is found that the coastline of the study area changes obviously, and the decrease trend is below the total coastline length; Fractal dimension index is used to characterize the natural condition of coastline. The total coastline length, natural coastline and artificial coastline all increase, which means that the amount of beach sediment deposition and the degree of artificial intervention have increased in this stage. (b) The object-oriented method is used to extract the land use classification of the coastal zone in the study area. Cultivated land is the main land type in the study area, and the impervious surface is the fastest growing. The degree of artificial development of the whole study area is gradually increasing, and the coastal beach area is greatly reduced, and the impervious surface area is greatly increased. Wetland and impervious surface are the two most dramatic changes in the study period. Wetland is mainly transformed into other surface features, while impervious surface is mainly transformed into other surface features.

THE LANDSCAPE INVESTIGATIONS AS NECESSARY PART OF BIOLOGICAL STUDY IN THE COASTAL ZONE TO THE QUESTION OF THE IMPACT OF CLIMATE CHANGE ON THE ECOLOGICAL STATE OF ARTIFICAL

2017 ◽  
Author(s):  
Artem Lapenkov ◽  
Artem Lapenkov ◽  
Yury Zuyev ◽  
Yury Zuyev ◽  
Nadezhda Zuyeva ◽  
...  
Keyword(s):  
Coastal Zone ◽  
Benthic Communities ◽  
Great Depth ◽  
Research Strategy ◽  
Biological Study ◽  
Lake Ladoga ◽  
Coastal Zones ◽  
Investigation Methods ◽  
Ground Conditions ◽  
The Impact

Coastal zones have great diversity of resources. The shallow water zones contain the most of plant and benthic communities. A description of relief and type of ground is needed for the rigorous monitoring of biota and environmental condition of coastal zone. Generally, on the basis of these data the investigation methods of the coastal zone are selected. The shallows research strategy has been developed by us for northern part of the Lake Ladoga. If the coastal areas are characterized by great depth and flat topography, then sonar’s can be used to describe them and samples of ground can be taken by bottom grabs. In the Lake Ladoga these methods don’t operate correctly by reason of the compound bottom relief and the fact that a sizeable part of the bottom is occupied by hard ground. Therefore, our investigations base on the diving transect method of Golikov and Skarlato (1965). A diver moves along transects. He registers the depth, length to coastline, water temperature, relief and ground, edificators and records video. In the laboratory all these data are decoded and used for mapping of bays. Studies of plant communities have been performed and strategy for research of benthic communities in complex relief and hard ground conditions has been developed based on the descriptions of shallow waters. Description of the Malay Nikonovskia Bay bottom has given an opportunity to estimate changes in the bottom of the bay under the influence of the trout farm.

THE IMPACT OF DIFFERENT URBAN LAND USE TYPES ON AIR POLLUTION IN THE MEGACITY OF SÃO PAULO

2020 ◽  
Vol 7 (1) ◽  
pp. 91
Author(s):  
Júlio Barboza Chiquetto ◽  
Maria Elisa Siqueira Silva ◽  
Rita Yuri Ynoue ◽  
Flávia Noronha Dutra Ribieiro ◽  
Débora Souza Alvim ◽  
...  
Keyword(s):  
Land Use ◽  
Air Pollution ◽  
Urban Land ◽  
Sao Paulo ◽  
Urban Land Use ◽  
São Paulo ◽  
Land Use Types ◽  
The Impact

A poluição do ar é influenciada por fatores naturais e antropogênicos. Quatro pontos de monitoramento (veicular, comercial, residencial e background urbano (BGU))da poluição do ar em São Paulo foram avaliados durante 16 anos, revelando diferenças significativas devidoao uso do solo em todas as escalas temporais. Na escala diurna, as concentrações de poluentes primários são duas vezes mais altas nos pontos veicular e residencial do que no ponto BGU, onde a concentração de ozonio (O3) é 50% mais alta. Na escala sazonal, as concentrações de monóxido de carbono(CO) variaram em 80% devido ao uso do solo, e 55% pela sazonalidade.As variações sazonais ede uso do solo exercem impactos similares nas concentrações de O3 e monóxido de nitrogênio (NO). Para o material particulado grosso (MP10) e o dióxido de nitrogênio(NO2), as variações sazonais são mais intensas do que as por uso do solo. Na série temporal de 16 anos, o ponto BGU apresentou correlações mais fortes e significativas entre a média mensal de ondas longas (ROL) e o O3 (0,48) e o MP10 (0,37), comparadas ao ponto veicular (0,33 e 0,22, respectivamente). Estes resultados confirmam que o uso do solo urbano tem um papel significativo na concentração de poluentes em todas as escalas de análise, embora a sua influência se torne menos pronunciada em escalas maiores, conforme a qualidade do ar transita de um sistema antropogênico para um sistema natural. Isto poderá auxiliar decisões sobre políticas públicas em megacidades envolvendo a modificação do uso do solo.

The Impact of Zoning and Built Environment Characteristics on Transit, Biking, and Walking

2019 ◽  
Vol 11 (1) ◽  
pp. 108-129
Author(s):  
Andrew G. Mueller ◽  
Daniel J. Trujillo
Keyword(s):  
Land Use ◽  
Built Environment ◽  
Discrete Choice ◽  
Travel Behavior ◽  
Choice Model ◽  
Mode Choice ◽  
Land Use Regulation ◽  
Policy Action ◽  
Development Goals ◽  
The Impact

This study furthers existing research on the link between the built environment and travel behavior, particularly mode choice (auto, transit, biking, walking). While researchers have studied built environment characteristics and their impact on mode choice, none have attempted to measure the impact of zoning on travel behavior. By testing the impact of land use regulation in the form of zoning restrictions on travel behavior, this study expands the literature by incorporating an additional variable that can be changed through public policy action and may help cities promote sustainable real estate development goals. Using a unique, high-resolution travel survey dataset from Denver, Colorado, we develop a multinomial discrete choice model that addresses unobserved travel preferences by incorporating sociodemographic, built environment, and land use restriction variables. The results suggest that zoning can be tailored by cities to encourage reductions in auto usage, furthering sustainability goals in transportation.

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