Lands can be "less favored" by nature or by man for many reasons. Some areas, often on hillsides, have soils that are at risk for degradation but could produce good crops under certain conditions. Others have soils that are so poor farmers cannot even think about growing crops there. Others have productive soils but are inaccessible and need infrastructure like roads to make it worthwhile for f...

The adsorption and desorption of paraquat (1, l'-dimethyl-4,4'-dipyridylium dichloride) in two tropical soils was determined under laboratory conditions. The two soils were taken from rice fields located in the North West of Perak state. The adsorption equilibrium time was 2 hours for both soil types. This adsorption equilibrium time was used to determine the effect of concentration on adsorpti...

Tropical forests play an important role in regulating the global climate and the carbon cycle. With the changing temperature and moisture along the elevation gradient, the Luquillo Experimental Forest in Northeastern Puerto Rico provides a natural approach to understand tropical forest ecosystems under climate change. In this study, we conducted a soil translocation experiment along an elevatio...

Expansive soils are one of the examples of tropical soils. These soils pose problems to civil engineers in general and to geotechnical engineers in particular. They cause damage to structures founded in them because of their potential to react to changes in moisture regime. They undergo severe volume changes corresponding to changes in moisture content. Because of their potential to undergo vol...

Abstract: The present work is conducted to investigate the effect of texture and carbonate content on internal friction angle of carbonate soils. Carbonate soils are majorly found in the bed of shallow waters and also offshores in tropical regions. Recently there is a huge construction projects including oil and gas extraction platform and facilities, harbors, refineries, huge bridges and ot...

Lead acetate (AcPb) is an important raw material used in chemical industries worldwide. The potential toxicity of AcPb generally attributed to the presence Pb. However, effect on environment as a whole still poorly known. This study aimed evaluate three standard species soil invertebrates and two plant using ecotoxicology tests. Three tropical soils (Oxisol, Inceptisol, Tropical Artificial Soil...