[Objective] The aim was to al eviate the constructed wetland clogging problems and to explore to the effects of hydraulic loading on wetland clogging. [Method] The experiment, through artificial soil columns, simulate...[Objective] The aim was to al eviate the constructed wetland clogging problems and to explore to the effects of hydraulic loading on wetland clogging. [Method] The experiment, through artificial soil columns, simulated vertical flow arti-ficial wetland, set four hydraulic load level at 50, 100, 150 and 200 cm/d, to identify the impact of hydraulic loading on wetland clogging and to explore the factors run-ning threshold. [Result] The results show that the different levels of hydraulic loading have greater impact; in the constructed wetland clogging process under high hy-draulic loading of 200 cm/d, the effective life was only six months, and the single factor can be speculated that the threshold of the hydraulic load should be at 100-150 cm/d; system can last for six months at low hydraulic loading and last for three months at medium hydraulic load. [Conclusion] The research provides references for wetland clogging experiments in future.展开更多
The scarcity of water resources in Syria, due to its major arid to semi-arid climate （precipitation less 100 mm/year） in a large part of the country, imposes a better rainfall water management in the humid to semi-h...The scarcity of water resources in Syria, due to its major arid to semi-arid climate （precipitation less 100 mm/year） in a large part of the country, imposes a better rainfall water management in the humid to semi-humid Syrian coast （precipitation over 1,000 mm/year）, where a high water quantity is lost in the sea. Various hydraulics constructions can be used aimed at a more rainfall water preservation： superficial wells, trenches, ponds, hilly lakes and small dams. Remote sensing techniques can help to build these constructions in places where the geomorphology is appropriate, and the filtration rate relatively limited. They are emplaced according to an advanced remote sensing mapping technique, based on the combination of several thematic maps： tectonics-, linear lineament （including density）, lithological facies drainage and filtration maps. This advanced mapping technique has been used to quantitatively verify ancient established constructions along the Syrian coast, and to propose optimal localizations for future hydraulics constructions. This technique presents a simple, quick and cheap solutions to be applied in Syria and the Arab world.展开更多
基金Supported by National Natural Science Foundation of China(41071214)~~
文摘[Objective] The aim was to al eviate the constructed wetland clogging problems and to explore to the effects of hydraulic loading on wetland clogging. [Method] The experiment, through artificial soil columns, simulated vertical flow arti-ficial wetland, set four hydraulic load level at 50, 100, 150 and 200 cm/d, to identify the impact of hydraulic loading on wetland clogging and to explore the factors run-ning threshold. [Result] The results show that the different levels of hydraulic loading have greater impact; in the constructed wetland clogging process under high hy-draulic loading of 200 cm/d, the effective life was only six months, and the single factor can be speculated that the threshold of the hydraulic load should be at 100-150 cm/d; system can last for six months at low hydraulic loading and last for three months at medium hydraulic load. [Conclusion] The research provides references for wetland clogging experiments in future.
文摘The scarcity of water resources in Syria, due to its major arid to semi-arid climate （precipitation less 100 mm/year） in a large part of the country, imposes a better rainfall water management in the humid to semi-humid Syrian coast （precipitation over 1,000 mm/year）, where a high water quantity is lost in the sea. Various hydraulics constructions can be used aimed at a more rainfall water preservation： superficial wells, trenches, ponds, hilly lakes and small dams. Remote sensing techniques can help to build these constructions in places where the geomorphology is appropriate, and the filtration rate relatively limited. They are emplaced according to an advanced remote sensing mapping technique, based on the combination of several thematic maps： tectonics-, linear lineament （including density）, lithological facies drainage and filtration maps. This advanced mapping technique has been used to quantitatively verify ancient established constructions along the Syrian coast, and to propose optimal localizations for future hydraulics constructions. This technique presents a simple, quick and cheap solutions to be applied in Syria and the Arab world.
