However China, as in so many other areas, has been determined to buck this trend. Reclamation has allowed developing conurbations and cities to grow beyond their original scope to accommodate their changing economic and infrastructure needs. The rationale behind the use of reclamation is simple, according to Tommy Ng, director for design, engineering services at Atkins in China — with ongoing urbanisation, cities need space to accommodate the people that move there.
Show full item record Abstract Oil sands mining results in significant disturbances to natural ecosystems when soil and overburden materials are removed and stockpiled to provide access to mined materials. The mining process must be followed by land reclamation, whereby disturbed landscapes are recovered with the intent to replicate the performance of natural watersheds.
Modeling hydrological processes in reclaimed landscapes is essential to assess the hydrological performance of the reclamation strategies as well as their evolution over time, and requires a reliable and continuous source of input data. In pursuit of simulating the various hydrological processes, such as soil moisture and actual evapotranspiration, a lumped generic system dynamics watershed GSDW model has been developed.
The validity of the proposed model has been assessed in terms of its capacity to reproduce the hydrological behaviour of both reconstructed and natural watersheds.
Data availability is a major challenge that constrains not only the type of models used but also their predictive ability and accuracy. This study evaluates the utility of precipitation and temperature data from the North American Regional Reanalysis NARR versus conventional platform data e.
Results indicate NARR data is a suitable alternative to local weather station data for simulating soil moisture patterns and evapotranspiration fluxes despite the high complexity involved in simulating such processes.
Initially, the calibrated GSDW model was used along with available historical meteorological records, from both Environment Canada and NARR, to estimate the maximum soil moisture deficit and annual evapotranspiration fluxes.
A probabilistic framework was adopted, and frequency curves of the maximum annual moisture deficit values were consequently constructed and used to assess the probability that various reconstructed and natural watersheds would provide the desired moisture demands.
The study shows a tendency for the reconstructed watersheds to provide less moisture for evapotranspiration than natural systems. The probabilistic framework could be implemented to integrate information gained from mature natural watersheds e. Finally, this study provided some insight into the sensitivity of soil moisture patterns and evapotranspiration to possible changes in the projected precipitation and air temperature in the 21st century.
Climate scenarios were generated using daily, statistically downscaled precipitation and air temperature outputs from global climate models CGCM3under A2 and B1 emission scenarios, to simulate the corresponding soil moisture and evapotranspiration using the GSDW model. Study results suggest a decrease in the maximum annual moisture deficit will occur due to the expected increase in annual precipitation and air temperature patterns, whereas actual evapotranspiration and runoff are more likely to increase.CIVIL LAW Answers to the BAR as Arranged by Topics (Year ) ANSWERS TO BAR EXAMINATION QUESTIONS IN.
HONG KONG “Improving the quality reclamation of the harbour that threatens to overwhelm our greatest natural asset, and by a pace of earn- progress towards a better environment.
Even in –– a momentous and challenging year for Hong Kong –– efforts continued. November 19, Towards Sustainable Mining Mine Closure Framework Mine Closure The Mining Association of Canada (MAC) recognizes that access to land and a company’s social license to operate.
Towards Sustainable Mining Vale is an active member in the Mining Association of Canada (MAC) and voluntary participant in the association’s initiative called Towards Sustainable Mining (TSM).
This initiative aims to improve the industry’s performance by aligning its actions with the priorities and values of . Hong Kong has more than enough land for housing on its brownfield sites.
Hong Kong doesn’t need more threats to its marine environment by reclamation, it needs a government that can assemble readily available brownfields for housing.
Toward designing a sustainable watershed reclamation strategy.
By Nader Keshta. Abstract. Oil sands mining results in significant disturbances to natural ecosystems when soil and overburden materials are removed and stockpiled to provide access to mined materials. The mining process must be followed by land reclamation, whereby disturbed.