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Environment and Ecology Part 1.5
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Another awesome video in the Environment and Ecology series by Roman Saini. Here, he deals the structure and function of ecosystem: Stratification – meaning layers: 1.Trees, 2.Shrubs, 3.Herbs and Grasses, components of ecosystem: productivity, decomposition, energy flow, nutrient cycling, Pond ecosytem: Planktons – Passive drifter, Autotrophs – Phytoplanktons, Zooplanktons - Nektons, Benthos, Decomposers – Fungi, Bacteria, Flagellates, Functions of Pond ecosytem, Productivity, Biomass: Species, Community, Standing crop, Dry weight, Primary production, Primary productivity i.e Gross primary, Net primary, Secondary productivity, factors influencing Primary productivity, Annual net primary productivity of biosphere: Abyssal, pelagic, benthic, profundal, hadalic, aphotic, Limiting factors – NOPL: Nitrogen – Oceans, Phosphorus – Lakes, Decomposition: rich in nitrogen, water soluble substances, warm, moist, airy, 5 steps: fragmentation, leaching, catabolism, humification, mineralisation, Detritivores - Farmer’s friend Still if you are left with any doubt, ask at his facebook page http://facebook.com/romansaini.official Video by Unacademy for IAS Preparation. How to prepare for IAS exam, Best IAS Coaching, IAS Civil Services Syllabus, Study Material for IAS Exam, IAS Civil Services Exam, UPSC Preparation, Tips for IAS, Material for IAS Preparation, UPSC Exam Material, IAS How to prepare, Other good resources: Mrunal and Clearias , IAS preparation tips, How to prepare for IAS 2015

Roman Saini is teaching live on Unacademy Plus

Roman Saini
Part of a great founding team at Unacademy with Gaurav, Hemesh. Movies, Guitar, Books, Teaching.

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In this part under heading str. & function of ecosystem, productivity ,decomposition, energy flow,nutrient cycling r mentioned as components of ecosystem.I just wonder is it correct? Thanks
sir plz start series on economics ,you have helped me a lot by ur videos sir plz provide other series too
Roman sir.....plz start a crash course on ECONOMICS ....i will really be very thankful to you...no one can clear concepts in such a unique way as you do.....
blessed are those aspirants who don't have money and guidance...sir please help for mains till the end
what is difference between community biomass and biomass?
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