... Author(s): HOANG HA PHAM Department of Mathematics, Hanoi National University of Education, 1... more ... Author(s): HOANG HA PHAM Department of Mathematics, Hanoi National University of Education, 136 Xuan Thuy Street, Cau Giay, Hanoi, Vietnam SI DUC QUANG Department of ... of Education, 136 Xuan Thuy Street, Cau Giay, Hanoi, Vietnam DUC THAI DO Department of ...
Accessibility is a comprehensive performance measure for the integration between land use and tra... more Accessibility is a comprehensive performance measure for the integration between land use and transport systems. In this research, two accessibility measures were applied to evaluate the integration between transport and land use in Hanoi metropolitan area: Vietnam, which has a typical monocentric urban form in the current situation, and Randstad metropolitan area, the Netherlands, which has a typical polycentric urban
International Journal of Agricultural Sustainability, 2005
A research project was carried out in two areas in the outskirts of Hanoi city using a combinatio... more A research project was carried out in two areas in the outskirts of Hanoi city using a combination of qualitative and quantitative methods. The objective was to study interactions among the vegetable farming systems and the peri-urban context within which they are situated. The farms studied were characterised as small-scale farms that use high inputs of soil amendments and pesticides for diversified crop rotation systems. The main source of irrigation water and nutrients for vegetable farming in southern Hanoi is wastewater from the To Lich River. In northern Hanoi, irrigation water is obtained directly from the Red River and nutrients are supplied through high fertiliser inputs. The concentrations of COD (144–287 mg l−1), N-NH4 + (1–25 mg l−1), PO4 3− (0.5–4 mg l−1) and coliform (525 × 103−28 × 106 MPN 100 ml−1) along the To Lich River was much higher than the limits specified in the Vietnamese standard for water used in agriculture. A higher Cu content in soil in Phuc Ly seems to be linked to the high input of chicken manure at the site. However, the contents of heavy metals in irrigation water, in vegetables and in the soil surface layer at the two sites were lower than the Vietnamese maximum permissible levels.
... Author(s): HOANG HA PHAM Department of Mathematics, Hanoi National University of Education, 1... more ... Author(s): HOANG HA PHAM Department of Mathematics, Hanoi National University of Education, 136 Xuan Thuy Street, Cau Giay, Hanoi, Vietnam SI DUC QUANG Department of ... of Education, 136 Xuan Thuy Street, Cau Giay, Hanoi, Vietnam DUC THAI DO Department of ...
Accessibility is a comprehensive performance measure for the integration between land use and tra... more Accessibility is a comprehensive performance measure for the integration between land use and transport systems. In this research, two accessibility measures were applied to evaluate the integration between transport and land use in Hanoi metropolitan area: Vietnam, which has a typical monocentric urban form in the current situation, and Randstad metropolitan area, the Netherlands, which has a typical polycentric urban
International Journal of Agricultural Sustainability, 2005
A research project was carried out in two areas in the outskirts of Hanoi city using a combinatio... more A research project was carried out in two areas in the outskirts of Hanoi city using a combination of qualitative and quantitative methods. The objective was to study interactions among the vegetable farming systems and the peri-urban context within which they are situated. The farms studied were characterised as small-scale farms that use high inputs of soil amendments and pesticides for diversified crop rotation systems. The main source of irrigation water and nutrients for vegetable farming in southern Hanoi is wastewater from the To Lich River. In northern Hanoi, irrigation water is obtained directly from the Red River and nutrients are supplied through high fertiliser inputs. The concentrations of COD (144–287 mg l−1), N-NH4 + (1–25 mg l−1), PO4 3− (0.5–4 mg l−1) and coliform (525 × 103−28 × 106 MPN 100 ml−1) along the To Lich River was much higher than the limits specified in the Vietnamese standard for water used in agriculture. A higher Cu content in soil in Phuc Ly seems to be linked to the high input of chicken manure at the site. However, the contents of heavy metals in irrigation water, in vegetables and in the soil surface layer at the two sites were lower than the Vietnamese maximum permissible levels.
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