Climate benefit of aboveground biomass can be reduced by fuel market rebound effect.Soil and root C storage rates tend to be higher in high-diversity species mixtures.Soil and root C storage was found to be key to GHG reductions of biofuels.

Perennial grasses grown on degraded and abandoned cropland were analyzed.To effectively mitigate greenhouse gas emissions, we should focus on increasing belowground carbon storage and explore the potential benefits of high-diversity plant species mixtures. Because of high soil and root C storage rates (152-483 g CO 2 ha -2 yr -1), many treatments are carbon negative even without the fossil fuel displacement benefit. Aboveground biomass yield ranged from 450-650 g ha -2 yr -1 for the productive treatments with moderate intensification, but its climate benefit via converting into biofuels and displacing fossil fuels can be substantially reduced by the rebound effect of fuel market. Proposed Key Dates for Calendar Year 2021: Qualified Health Plan (QHP) Data Submission and Certification Rate Review and Risk Adjustment (PDF) February 2. We find that soil and root carbon storage is a greater determinant of the climate change mitigation potential of biofuels than aboveground biomass, and tends to be higher for treatments with high plant diversity. Cropland with fertile soils can produce high aboveground biomass yields but its diversion to bioenergy causes greenhouse gas emissions from direct and indirect land use changes. Here, we analyze three grassland experiments that minimize land use changes by using abandoned and degraded agricultural land. is a useful website for people all over the world to find the correct login pages, and helps seekers easily access the login portals of the thousands of websites without a lot of effort. Most bioenergy feedstock studies focus on maximizing aboveground biomass production. If key 2 benefits sign in is not working properly, share the problem detail below.

Key 2 benefits