Студопедия Главная Случайная страница Обратная связь

Разделы: Автомобили Астрономия Биология География Дом и сад Другие языки Другое Информатика История Культура Литература Логика Математика Медицина Металлургия Механика Образование Охрана труда Педагогика Политика Право Психология Религия Риторика Социология Спорт Строительство Технология Туризм Физика Философия Финансы Химия Черчение Экология Экономика Электроника

Dnipro Basin Environment Programme





Dnipro is a great river, owing not only to its hydrological parameters (third longest in Europe), but also to its discernible role and significance in the formation and development of the three Eastern Slavic nations. Indeed, the past history, present environmental and economic conditions, and future destiny of Belarus, Russia, and Ukraine are deeply entwined with the Dnipro.

However, the extensive human impact on the Dnipro Basin has in­creased even more during recent decades due to the Chernobyl catas­trophe, and has led to imbalances in nature and disaster conditions in many territories. Unfortunately, adequate measures on pollution prevention and reduction of the impact of other neg­ative factors have not been taken either. The vital powers of the Dnipro – its ability to self-purify and renew its natural resources – have grad­ually weakened; its biodiversity has suf­fered, as has depleted the productivity of its fisheries.

Despite the social and eco­nomic difficulties underway, all arms of govern­ment in the three Dnipro countries are making significant efforts to improve the aggravated environmental situation.

The Dnipro River is the third-largest in Europe (after the Volga and the Danube). The Dnipro is also the sec­ond-largest river emptying into the Black Sea. It drains an area of 509,000 square kilometres and has a total length of 2,200 km. The Dnipro's is a trans-boundary system, with 20 percent of the river basin within the territory of the Russian Federation, 23 percent in Belarus, and the largest portion, 55 per­cent, in Ukraine.

Highly altered by a lengthy cascade of reservoirs, the Dnipro is no longer a self-regulating river ecosystem. Adjoining hydroelectric facilities, nuclear power stations, and other heavy industrial com­plexes have caused environmental and socioeconomic damage on a region-wide scale.

The Dnipro Basin has been described as a "classic example of unsustainable development", due to the past legacy of trying to convert a traditionally agricul­tural region into a major industrial one in the space of a few decades. The sit­uation has been complicated by the extreme social and economic difficulties faced by all three riparian countries in their transition to market economies. In the Dnipro Basin, this combination of circumstances has resulted in:

· high industrial density and urban pop­ulation;

· intensively farmed areas with a histo­ry of over-fertilisation (to compen­sate for the loss of agricultural land due to urban, mining, and industrial development), though with little cur­rent use of agrochemicals, as well as severe erosion and falling productivi­ty;

· excessive damming of the river sys­tem, with six major reservoirs on the main watercourse and over 500 smaller dams on the tributaries, to generate electricity for heavy industry;

· the practice of flooding fertile lands in river valleys in connection with the construction of dams, and the drain­ing of wetlands to provide more land for agriculture, resul­ting in a gross re­duction of biodiver­sity in the whole region;

· large-scale and extensive water ex­traction for agricul­tural and industrial use, particularly for metallurgic indus­trial complexes;

· poorly regulated deposits of tailings from mining complexes, including wastes from uranium mining;

· industrial accidents, the most notori­ous being the 1986 Chernobyl nuclear disaster, which led to the contamination of vast areas of east­ern and northern Europe, along with radioactive fall-out;

· frequent accidental spills of contami­nated wastewater into the river, and on occasions, into the drinking water system; and

· treatment or partial treatment of only 45 percent of the wastewater.

Many of the consequences of the environmental deterioration in the Dnipro basin are trans-boundary in nature. The break-up of the former Soviet Union resulted in new societal divisions, and different economic and political objectives and strategies, among the newly independent riparian states.

The development of a Strategic Action Programme (SAP) can improve the state of the Dnipro Basin environ­ment and reduce the trans-boundary consequences of environmental deterio­ration.

Long-term objectives of the Programme are:

· remedy the serious environmental effects of pollution and habitat dete­rioration in the Dnipro River Basin;

· ensure sustainable use of its re­sources;

· protect biodiversity in the Basin.

SAP is a policy document endorsed in agreements among the governments of the three Dnipro countries and implemented at the high­est level of executive authority of all rel­evant sectors. The document establishes clear priorities for action to resolve the priority problems.

 


 







Дата добавления: 2015-09-06; просмотров: 462. Нарушение авторских прав; Мы поможем в написании вашей работы!




Обзор компонентов Multisim Компоненты – это основа любой схемы, это все элементы, из которых она состоит. Multisim оперирует с двумя категориями...


Композиция из абстрактных геометрических фигур Данная композиция состоит из линий, штриховки, абстрактных геометрических форм...


Важнейшие способы обработки и анализа рядов динамики Не во всех случаях эмпирические данные рядов динамики позволяют определить тенденцию изменения явления во времени...


ТЕОРЕТИЧЕСКАЯ МЕХАНИКА Статика является частью теоретической механики, изучающей условия, при ко­торых тело находится под действием заданной системы сил...

Разновидности сальников для насосов и правильный уход за ними   Сальники, используемые в насосном оборудовании, служат для герметизации пространства образованного кожухом и рабочим валом, выходящим через корпус наружу...

Дренирование желчных протоков Показаниями к дренированию желчных протоков являются декомпрессия на фоне внутрипротоковой гипертензии, интраоперационная холангиография, контроль за динамикой восстановления пассажа желчи в 12-перстную кишку...

Деятельность сестер милосердия общин Красного Креста ярко проявилась в период Тритоны – интервалы, в которых содержится три тона. К тритонам относятся увеличенная кварта (ув.4) и уменьшенная квинта (ум.5). Их можно построить на ступенях натурального и гармонического мажора и минора.  ...

Индекс гингивита (PMA) (Schour, Massler, 1948) Для оценки тяжести гингивита (а в последующем и ре­гистрации динамики процесса) используют папиллярно-маргинально-альвеолярный индекс (РМА)...

Методика исследования периферических лимфатических узлов. Исследование периферических лимфатических узлов производится с помощью осмотра и пальпации...

Роль органов чувств в ориентировке слепых Процесс ориентации протекает на основе совместной, интегративной деятельности сохранных анализаторов, каждый из которых при определенных объективных условиях может выступать как ведущий...

Studopedia.info - Студопедия - 2014-2025 год . (0.014 сек.) русская версия | украинская версия