Hydraulic conductivity is the most important property of geological formations as the
flow of fluids and movement of solutes depend on it. Among fluids, water and
contaminant migration beneath, the ground surface have become critical for water
resource development, agriculture, site restoration and waste disposal strategies.
This book provides the state of the art of the investigation and the in-depth analysis of hydraulic conductivity from the theoretical to semi-empirical models perspective as well as policy development associated with management of land resources emanating from drainage-problem soils. A group of international experts contributed to the development of this book. It is envisaged that this thought provoking book will excite and appeal to academics, engineers, researchers and University students who seek to explore the breadth and in-depth knowledge about hydraulic conductivity....
The field of groundwater hydrology and the discipline of hydrogeology have attracted a lot of attention during the past few decades. This is mainly because of the increasing need for high quality water, especially groundwater.
Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế, đề tài:"Water relations of adult Norway spruce (Picea abies (L) Karst) under soil drought in the Vosges mountains: whole-tree hydraulic conductance, xylem embolism and water loss regulation...
Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: Comparative studies of the water relations and the hydraulic characteristics in Fraxinus excelsior, Acer pseudoplatanus and A. opalus trees under soil water contrasted conditions
Damien Lemoinea, Jean-Paul Peltierb and Gérard ...
Difficulty in addressing contamination in low permeability soils may be
alleviated to some degree by controlled pneumatic or hydraulic fracturing of the
soil. However, engineered hydraulic fractures generally cannot be spaced more
closely than about 5 feet, which means that chemical oxidants must still penetrate a
substantial thickness of low permeability soil to come into contact with the
contamination. Deep soil mixing with large diameter drill augers is the most
effective method currently available to increase contact between adsorbed
contaminants and the oxidants.
Research objectives: The thesis is focused on hydraulic calculation of small drainage works across of road such as: (step cascades, steep slope, velocity of soil scouring at culvert outlets and scour at culvert outlets). So that, Proposed solutions and selection methods to reinforced or choose the mitigating energy method relevant with downstream culverts on the roads; find solutions for small drainage works across the road with terrain characteristics matching the natural environment conditions and climate in Laos.