Sökning: "Quang Pham Van"

Hittade 2 avhandlingar innehållade orden Quang Pham Van.

1. 1. Soil Degradation of Raised-beds on Orchards in the Mekong Delta Field and Laboratory Methods

   Författare :Quang Pham Van; Per-Erik Jansson; Khoa Le Van; Ingmar Messing; KTH; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; citrus orchards; nutrient; soil fertility; soil strength; soil degradation; alluvial soil; Mekong delta;

   Sammanfattning : Soil degradation is a complex process which may occur anywhere and at any time. It directly affects the physical, chemical and biological processes within the soil profile. Soil degradation can either be as a result of natural hazards or due to manmade actions, such as mismanagement on cropping patterns, soil preparation and cultivation practices. LÄS MER

3. 2. Soil formation and soil moisture dynamics in agriculture fields in the Mekong Delta, Vietnam conceptual and numerical models

   Författare :Pham van Quang; Per-Erik Jansson; KTH; []
   Nyckelord :climate; CoupModel; pressure head; GLUE; soil water; characteristic curve; tensiometer;

   Sammanfattning : Previous studies of agricultural conditions in the Mekong Delta (MD) have identified soil compaction as an obstacle to sustainable production. A conceptual model for soil formation was presented to demonstrate the link between soil hydrology and plant response. LÄS MER