Class Notes (839,150)
Canada (511,218)
Environment (894)
ENV100Y5 (713)
murk (80)

env100 note 52.docx

4 Pages

Course Code

This preview shows page 1. Sign up to view the full 4 pages of the document.
ENV100 Lecture NotesMar 9 2012 Black The New Green Guest Lecture ByCarolyn WinsboroughOUTLINE 1 What is Biochar2 How is Biochar produced 3 Environmental BenefitsSoil ImprovementsClimate Change and Energy ProductionPollutionFood Security 4 My ResearchWHAT IS BIOCHAR Terra preta do Indio If you read the text books it shouldnt be hereAn anomaly in the TropicsTypically soil is o Red and yellow soil o Highly weathered o Acidic o Low in organic matter o Low in essential nutrientsWhat did they findThousands of burial urns and ceramic pieces date back 2000 yrs7000yrsTerra preta found on low hills overlooking rivers 70 more charcoal than adjacent soils Why more charcoalSlash andBurnan agricultural practice where farmers clear their fields and burn the biomass to flush enough nutrient into the soilSlash and Charfarmers burned biomass incompletely creating charcoal and stirred this into the soil then added nutrients animal bones and excrementTo test if charcoal was the culpritA trial was performed on the infertile soils of the Amazon by adding various treatments of charcoal and nutrientsIn two years treatments of charcoal and fertilizer grew as much as 880 more than plots with just fertilizer alone
More Less
Unlock Document

Only page 1 are available for preview. Some parts have been intentionally blurred.

Unlock Document
You're Reading a Preview

Unlock to view full version

Unlock Document

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.