Human domination of the global water cycle absent from depictions and perceptions

Created a single water cycle diagram and compared with 464 WCDs from around the world “Although human freshwater appropriation now equals half of global river discharge, only 15% of the WCDs depicted human interaction with water“ Almost none (2%) showed … Continue reading “Human domination of the global water cycle absent from depictions and perceptions”

Stability of soil organic matter under long-term biosolids application

What is plow layer? top 15-20 cm (control 15 cm, biosolids applied increase this by 15-20 cm); accounted for this by sampling up to 30 cm in amended fields mined vs. unmined soils loss of topsoil due to stripmining in the … Continue reading “Stability of soil organic matter under long-term biosolids application”

The Role of Soil Microorganisms in Plant Mineral Nutrition

FBA = flux balance analysis; an optimization problem that uses a linear combination of metabolic rates, either to be maximized (e.g. biomass) or minimized (e.g. total sum of cellular fluxes). I’m not clear on why these need be linear functions… ? Orth, J. D., Thiele, I., and Palsson, B. O. … Continue reading “The Role of Soil Microorganisms in Plant Mineral Nutrition”