June 2015

Introduction to a quantitative method for assessment of visual impacts of Tehran Towers

Landscape arrangement significantly influences observer’s visual experience of the environment. Since measuring this qualitative experience is more based on personal judgments than mathematical techniques, representing “quantifying methods” in this field demands a significant amount of caution and accuracy. This research is an attempt to quantify visual impacts of seven-story- and higher-buildings on...

Author(s): Hoda KARIMIPOUR, Mehdi MOJTAHEDI and Forood AZARI DEHKORDI

June 2015

Forms and content of sesquioxides in soils on basement complexes of northern Guinea savanna of Nigeria

The forms and content of sesquioxides (Fe and Mn) were studied in soils developed on basement complex rocks within Northern Guinea Savanna of Nigeria. The study showed that variation in parent materials and pedogenetic development significantly influenced content of dithionite, oxalate extractable forms of iron and active iron ratio in these soils. The mean values of active sesquioxides (Fe and Mn) ratios between the...

Author(s): Maniyunda L. M., Raji B. A., Odunze A. C. and Malgwi W. B.

June 2015

Effects of soil conservation technologies in improving soil productivity in northern Ghana

A four year study was carried out to ascertain the usefulness of conservation agriculture (CA) technologies in improving biomass cover as well as the physical and chemical properties of the soil across 6 communities in northern Ghana. The conservation agriculture introduced include: Zero tillage, cover cropping, crop rotation and intercropping. Bunding was also introduced as a means of moisture retention. After four...

Author(s): Kugbe X. Joseph, and Zakaria Issahaku

June 2015

Determinants of adopting techniques of soil and water conservation in Goromti Watershed, Western Ethiopia

Land degradation is one of the major challenges in agricultural production in many parts of the world, especially in developing nations, including Ethiopia. A number of soil and water conservation methods were introduced to combat land degradation but adoption of these practices remains below expectations. The main objective of the study is to assess determinants of soil and water conservation techniques in Western...

Author(s): Addisu Damtew Atnafe, Husen Maru Ahmed and Demeku Mesfin Adane