Results 91 to 100 of about 131,848 (294)

Root biomass allocation in southern temperate forests

Forest Ecology and Management, 2019
Abstract Accurate quantification of total forest biomass requires sound estimates of root biomass. Because roots are challenging to measure in situ, data are sparse, and this has limited our understanding of root allocation across a range of forest types. Increased sampling in the oceanic and cool temperate forests of the southern hemisphere means we
Tomás A. Easdale, Sarah J. Richardson, Michael Marden, Jacqueline R. England, Jorge Gayoso-Aguilar, Javier E. Guerra-Cárcamo, James K. McCarthy, Keryn I. Paul, Luitgard Schwendenmann, Andrea M. Brandon   +9 more
openaire   +1 more source

The Biofuels Blueprint: Understanding the U.S. Renewable Fuel Standard

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT We provide a comprehensive review of the U.S. Renewable Fuel Standard (RFS), synthesizing nearly two decades of program evolution, market outcomes, and economic analysis. The RFS mandates minimum volumes of renewable fuel blending through a nested structure based on life‐cycle greenhouse gas reductions, enforced via tradeable Renewable ...
Maria Gerveni, Todd Hubbs, Scott H. Irwin, James H. Stock   +3 more
wiley   +1 more source

Pricing Dynamics in the US Hemp Market: A Vertical Price Transmission Analysis of the Hemp Value Chain

Agribusiness, EarlyView.
ABSTRACT The US hemp market is a new and nascent industry that has been devoid of research for about half a century. This study examined the effects of exogenous shock on price at each phase of the value chain—Farm (hemp biomass), and its impact on prices at other phases of the value chain—Intermediary Processor (crude cannabidiol hemp) and Final ...
Solomon Odiase, Tyler Mark, Patalee Buddhika Appuhamilage   +2 more
wiley   +1 more source

Pricing the Ecosystem and Taxing Ecosystem Services: A General Equilibrium Approach [PDF]

In an integrated dynamic general equilibrium model of the economy and the ecosystem humans and wildlife species compete for land and prey biomass. We introduce a competitive allocation mechanism in both submodels such that economic prices and ecosystem ...
Rüdiger Pethig, Thomas Eichner
core  

Native and invasive inoculation sources modify fungal community assembly and biomass production of a chaparral shrub [PDF]

, 2020
Feedbacks between plants and surrounding soil microbes can contribute to the establishment and persistence of invasive annual grasses as well as limit the success of restoration efforts.
Allen, Edith B, Aronson, Emma L, Maltz, Mia R, Phillips, Michala L   +3 more
core  

A leaf phenomics approach for estimating belowground traits in North American licorice

American Journal of Botany, EarlyView.
Abstract Premise Selective breeding over thousands of years has prioritized aboveground yield, with little regard for changes belowground. Roots underpin plant growth and resilience, but our knowledge of these critical structures lags behind that of aboveground structures.
Zachary N. Harris, Vivian Tran, Emelyn Piotter, Meredith T. Hanlon, Matthew J. Rubin, Allison J. Miller   +5 more
wiley   +1 more source

Ozone and haze pollution weakens net primary productivity in China [PDF]

, 2017
Atmospheric pollutants have both beneficial and detrimental effects on carbon uptake by land ecosystems. Surface ozone (O3) damages leaf photosynthesis by oxidizing plant cells, while aerosols promote carbon uptake by increasing diffuse radiation and ...
Feng, Zhaozhong, Harper, Kandice, Li, Jing, Liao, Hong, Unger, Nadine, Xia, Xiangao, Xiao, Jingfeng, Yue, Xu, Zhu, Tong   +8 more
core   +4 more sources

Synthesis and Characterization of Ag–Fe Bimetallic Nanoparticles and Nanocomposites (Alloys and Core–Shells) for Photocatalytic Degradation of Bromophenol Blue Dye Using Grewia optiva Leaf Extract

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Ag–Fe bimetallic nanoparticles (alloy and core–shell structures) were synthesized using Grewia optiva leaf extract through a green, phytochemical‐mediated approach. The effects of pH, temperature, extract concentration, and Ag:Fe molar ratio on nanoparticle formation were systematically optimized, enabling size‐controlled and morphologically ...
Sehrish Asad, Waheed Murad, Natasha Anwar, Khushbakht Asad, Muhammad Salman Khan, Shohreh Azizi, Malik Maaza   +6 more
wiley   +1 more source

Growth of Queensland Jatropha gossypifolia biotypes under varying water regimes [PDF]

, 2014
Bellyache bush (Jatropha gossypifolia L. (Euphorbiaceae)) is a serious weed of dry tropical regions of northern Australia, with the potential to spread over much of the tropical savannah.
Dhileepan, Kunjithapatham, Taylor, Dianne   +1 more
core   +1 more source

Technobiological Pathways for High‐CO₂ Capture Using Micro‐/Macroalgae: Genetic Engineering, Process Automation, and Value‐Added Bioproducts

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Greenhouse gas (GHG) emissions have emerged as one of the most critical drivers of climate change; this is primarily due to high concentrations and long atmospheric life of carbon dioxide (CO2). For a significant amount of time, various biological processes such as microalgal cultivation, cyanobacterial systems, photosynthetic microorganisms ...
Sadhana Semwal, Harish Chandra Joshi
wiley   +1 more source