Effect of Urbanization on Flood Generation

Effect of Urbanization on Flood Generation

Автор: Dr. Paresh Chandra Deka,Dr. Ing. Yonas Michael and Fessahatsion Zemuy

Over the last few decades,it has been noticed that there is an intensive conversion of rural land to urban development like buildings, roads, recreation areas, reservoirs and other manmade structures. As population and land values increase, the effects of uncontrolled runoff become an economic burden and poses serious threat to health and wellbeing of citizens. Management of runoff from even a minor storm is rapidly becoming an engineering requirement to help reducing water logging, flooding and stream erosion. This book, therefore, provide a comprehensive and integrated approach using HEC-HMS models, Muskingum routing,Digital elevation model data,SCS-curve number method in estimating the flood volume,peak discharge for various return periods and land use change at various locations along the Addis Ababa city watershed .The methodology and results were analysed sub-basin wise of the whole urban watershed. The analysis should be specially useful to the Hydrologist, civil engineering…

Hydrogeophysical Investigation in Shebe Watershed,Jima, Ethiopia

Hydrogeophysical Investigation in Shebe Watershed,Jima, Ethiopia

Автор: Geremew lamessa

Water is one of the most important commodities which man was exploited than any other resources for sustenance of his life. The need for water is strongly ascending which is not only important for domestic purpose but also for the development activities in both agricultural and industrial sectors. Any developmental activity is related, either directly or indirectly, with water utilization. More than 71% of the earth`s surface is covered by water, while surface water makes more than 97% of the earth`s water. Surface, Subsurface and atmospheric water, in all its forms is collectively called as hydrosphere. Subsurface water consists of groundwater including soil moisture on the continent. Groundwater is a primary source of fresh water in several towns and rural areas.Therefor,those professionals,organizations,and etc who are working in the water sector particularly on exploration and development of ground water,should start with desk study and detail study of ground water…

Ремонт кузова автомобиля. Полное руководство для автолюбителя

Ремонт кузова автомобиля. Полное руководство для автолюбителя

Автор: Мартин Рэндалл

В этом руководстве: Полировка, восстановление и защита. Ремонт с применением шпатлевки и аэрозольного баллона с краской. Ремонт поврежденных в результате аварии и подвергшихся воздействию коррозии панелей. Ремонт стальных, алюминиевых и пластиковых панелей. Замена кузовных панелей. Способы нанесения лакокрасочного покрытия. Замена дверей и стекол. Основы сварки. Обслуживание краскопульта. Описания возможных проблем и способов их решения. Инструменты и приспособления. Словарь технических терминов. Сотни иллюстраций помогут вам выполнить поставленную задачу.

Продуктивность агроценоза и микробное сообщество почв

Продуктивность агроценоза и микробное сообщество почв

Автор: Ольга Селиверстова und Надежда Верховцева

Сохранение биологического статуса, который обеспечивает гомеостатическую стабильность сельхозугодья — его продуктивность,- важный аспект концепции интенсивного земледелия. В большой степени, помимо разнообразия, это относится к структуре микробного сообщества почв и направленности микробиологических процессов, играющих определяющую роль в функционировании круговоротов биогенных элементов. Микробоценоз почв представлен разнообразными видами бактерий и грибов. При изучении отдельных групп микроорганизмов, трудно поддающихся культивированию или тех, которые невозможно выращивать in vitro без облигатного симбионта, представляется актуальным использование молекулярных методов, одним из которых является газовая хроматография — масс-спектрометрия (ГХ-МС). В книге показана взаимосвязь продуктивности агроценоза и структуры микробного сообщества. Впервые проведена оценка численности арбускулярных микоризных грибов методом ГХ-МС в серой лесной почве агроценоза и определено значение этой группы…

Ecofriendly Management of Root-Knot Nematode associated with Noni

Ecofriendly Management of Root-Knot Nematode associated with Noni

Автор: Kavitha Govindasamy and Jonathan Ebenezer

Noni is used as a panacea to cure many diseases as a health supplement or as a therapy. It is gaining popularity for its use as an alternative herbal medicine. Root knot nematode, Meloidogyne incognita is one of the most destructive pathogens of noni. Due to its obligate and endoparasitic nature, it disrupts the physiology, arrest the growth of noni plants and reducing fruit yield and quality which ultimately results in great economic loss. Hence investigations were carried out using various ecofriendly management strategies to bring the nematode under check.New techniques including Scanning electron microscope, radiolabelling and interactive proteome analysis were used to understand the molecular mechanisms of host-parasite and biocontrol agent interaction. For sure the above studies would lead to the development of chemical free nematode management strategies for a sustainable agriculture

Property Rights and Natural Resources

Property Rights and Natural Resources

Автор: Richard Barnes

Winner of the SLS Peter Birks Prize for Outstanding Legal Scholarship 2009. The use of private property rights to regulate natural resources is a controversial topic because it touches upon two critical issues: the allocation of wealth in society and the conservation and management of limited resources. This book explores the extension of private property rights and market mechanisms to natural resources in international areas from a legal perspective. It uses marine fisheries to illustrate the issues that can arise in the design of regulatory regimes for natural resources. If property rights are used to regulate natural resources then it is essential that we understand how the law and values embedded within legal systems shape the development and operation of property rights in practice. The author constructs a version of property that articulates both the private and public function of property. This restores some much needed balance to property discourse. He also assesses…