'Nutrient cycling' diaporamas de présentation

ENERGY

ENERGY. PATTERNS OF ENERGY FLOW IN ECOSYSTEMS. WHAT IS AN ECOSYSTEM?. Biological community plus all abiotic factors affecting the community. http://eesc.columbia.edu/courses/ees/life/lectures/lect02.html. LAWS OF THERMODYNAMICS. 1st LAW: 2nd LAW:. ENERGY SOURCES IN BIOSPHERE.

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Prof. Dr. Yingzhi Gao Northeast Normal University Phone:13664319768 Email:gaoyz108@nenu

Prof. Dr. Yingzhi Gao Northeast Normal University Phone:13664319768 Email:gaoyz108@nenu.edu.cn. Introduction to Ecosystem Ecology. Principles of Terrestrial Ecosystem Ecology by F. Stuart Chapin III Pamela A. Matson Harold A. Mooney. Textbook: . Course Goals.

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ENVIRONMENTAL SCIENCE

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Environmental Science: Chapter 4

Environmental Science: Chapter 4. Ecosystems: How they change. Biotic Potential Vs. Environmental Resistance. Predator-prey Balance:Wolves and Moose. Steps in predation . Encounter. Attack. Capture. Ingestion. Encounter.

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The Fungi

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WETLANDS From Bogs to Swamps

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10% of NPP

10% of NPP. To herbivores. 90% of NPP. To detritivores. Outline. Effects of herbivores on NPP Effects of herbivores on nutrient cycling. How do herbivores influence NPP?. Direct effects are negative Damage! Select growing tissue rich in nutrients

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The Remaining Vulnerabilities of Post-Katrina New Orleans:

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Introduction to Rangeland Insects: Diversity and Function

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Food chains/webs and trophic levels

Food chains/webs and trophic levels. Trophic levels. Determines the pathways of energy flow and nutrient cycling (more on this later) Different species in the ecosystem are divided into different trophic levels depending on what they eat There are 5 main levels. Trophic levels.

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Readings

Readings. Chapter 13 textbook Van Breeman, N., and Finzi, A. 1998. Plant-soil interactions: ecological aspects and evolutionary implications. Biogeochemistry 42:1-19. (online journal, UNR library website)

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Ecosystem

Ecosystem. Biotic (communities) and abiotic (environment) components within a given area Integrative Process-centered (energy flow and nutrient cycles). Solar radiation. Reflected by atmosphere. Radiated by atmosphere as heat. UV radiation. Lower Stratosphere (ozone layer). Most

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Mineral dissolution/precipitation

Mineral dissolution/precipitation. To determine whether or not a water is saturated with an aluminosilicate such as K-feldspar, we could write a dissolution reaction such as: KAlSi 3 O 8 + 4H + + 4H 2 O ? K + + Al 3+ + 3H 4 SiO 4 0 We could then determine the equilibrium constant:

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Biogeochemistry

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NSF EF-1115210

Welcome to Summit III. University of Florida Florida State University. NSF EF-1115210. Advancing Digitization of Biodiversity Collections (ADBC). N ational center for activities related to digitization of institutional natural history collections.

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Connectivity of River Flow

Connectivity of River Flow. Marisa Hendron Limnology 475/575 Presented November 25, 2009 Prof. Mark Sytsma. Flow Characteristics. Vertical Nutrient Cycling Longitudinal Navigation Lateral Floodplain Interaction. Figure from Alley et al., 2002, Science. The Hyporheos.

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Department of Systems Ecology Marine Ecology section

Department of Systems Ecology Marine Ecology section. Department of Systems Ecology - Marine Ecology section. effects of eutrophication. Long Term Ecological Research (LTER). effects of fisheries. food web interactions. climate impact. nutrient cycling.

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Nutrient Cycling

Nutrient Cycling. Water Cycle: Repeated movement of water between the earth and the atmosphere Water is essential to life The water cycle has four steps Evaporation (liquid to gas = water vapor) Transpiration (water vapor released from plants) Condensation (gas to liquid = raindrops)

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Ocean Ecosystems & Biodiversity

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