Пространственно-временная изменчивость сообщества эпифитона реки Москвы и факторы ее регулирующие
Речные системы характеризуются продольным градиентом физических условий среды обитания, основными составляющими которого являются расход воды, ширина речного русла и размер седиментационных частиц (Vannote et al. 1980). Вследствие физических и биологических процессов размер минеральных и органических частиц, взвешенных в толще речной воды и оседающих на дно, постепенно снижается вниз по течению… Читать ещё >
Содержание
- ГЛАВА 1. ОБЗОР ЛИТЕРАТУРЫ
- 1. 1. Влияние гидролого-гидрохимических параметров на сообщество перифитона в реках
- 1. 2. Метаболические взаимоотношения системы эпифитон-макрофиты
- 1. 3. Трофические взаимоотношения фитофильной фауны и эпифитона
- ГЛАВА 2. МАТЕРИАЛЫ И МЕТОДЫ ИССЛЕДОВАНИЯ
- 2. 1. Исследование временной динамики сообщества эпифитона
- 2. 1. 1. Сбор и первичная обработка материала
- 2. 1. 2. Анализ данных
- 2. 2. Исследование пространственной динамики сообщества эпифитона
- 2. 2. 1. Сбор и первичная обработка материала
- 2. 2. 2. Анализ данных
- 2. 1. Исследование временной динамики сообщества эпифитона
- 3. 1. Сезонное изменение гидрохимических и физических параметров реки Москвы
- 3. 1. 1. Сезонная динамика биогенных элементов
- 3. 1. 2. Сезонное изменение концентрации общего взвешенного вещества
- 3. 1. 3. Сезонное изменение условий освещенности в зарослях рдеста
- 3. 2. Характер сезонных изменений структурно-функциональных характеристик сообщества эпифитона
- 3. 2. 1. Сезонная динамика биомассы эпифитона
- 3. 2. 2. Сезонная динамика функциональных характеристик эпифитона -первичная продукция и хемоорганотрофия
- 3. 2. 3. Сезонная изменчивость видовой структуры эпифитона
- 3. 3. Влияние физико-химических факторов на структурнофункциональные показатели эпифитона
ГЛАВА 5. ПРОСТРАНСТВЕННАЯ ИЗМЕНЧИВОСТЬ СТРУКТУРЫ СООБЩЕСТВА ЭПИФИТОНА ОТНОСИТЕЛЬНО СКОРОСТИ ТЕЧЕНИЯ И КОНЦЕНТРАЦИИ БИОГЕННЫХ ЭЛЕМЕНТОВ. 5.1. Гидролого-гидрохимические характеристики верхнего участка реки Москвы.
5.1.1. Пространственная динамика биогенных элементов.
5.1.2. Отношение гидрохимических характеристик к скорости течения. 5.2. Структурные характеристики сообщества эпифитона.
5.2.1. Зависимость биомассы эпифитона от концентрации биогенных элементов и скорости течения.
5.2.2. Изменение структуры сообщества эпифитона относительно концентрации биогенных элементов и скорости течения
5.2.2.1. Биомасса таксономических отделов.
5.2.2.2. Видовая структура эпифитона.
5.3. Оценка качества воды по структурным и сапробиологическим показателям.
ВЫВОДЫ.
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