Results 31 to 40 of about 279,177 (261)

Estimating the Aboveground Biomass for Planted Forests Based on Stand Age and Environmental Variables

open access: yesRemote Sensing, 2019
Measuring forest aboveground biomass (AGB) at local to regional scales is critical to understanding their role in regional and global carbon cycles. The Three-North Shelterbelt Forest Program (TNSFP) is the largest ecological restoration project in the ...
Dailiang Peng   +12 more
doaj   +1 more source

Mullahingamise sesoonne dünaamika kuusikute aegreas / Seasonal dynamics of soil respiration in a chronosequence of the Norway spruce stands

open access: yesMetsanduslikud Uurimused, 2011
Soil respiration resulting from microbial and root respiration is a major component of the forest carbon cycle. The response of soil respiration to varying environmental factors (soil temperature and soil moisture) was studied in a Norway spruce ...
Kukumägi Mai, Uri Veiko, Kull Olevi
doaj   +1 more source

Standing as Channeling in the Administrative Age

open access: yesSSRN Electronic Journal, 2012
For several decades, courts have approached citizen suits with judicially created rules for standing. These requirements for standing have been vague and unworkable, and often serve merely as a screening mechanism for docket management. The use of standing rules to screen cases, in turn, yields inconsistent decisions and tribunal splits along partisan ...
Stevenson, Dru, Eckhart, Sonny
openaire   +2 more sources

Alterations in Arbuscular Mycorrhizal Community Along a Chronosequence of Teak (Tectona grandis) Plantations in Tropical Forests of China

open access: yesFrontiers in Microbiology, 2021
Arbuscular mycorrhizal (AM) fungi play a crucial role in promoting plant growth, enhancing plant stress resistance, and sustaining a healthy ecosystem. However, little is known about the mycorrhizal status of teak plantations.
Zhi Yu   +7 more
doaj   +1 more source

Breast cancer and aging: Standing on the shoulders of a giant

open access: yesJournal of Geriatric Oncology, 2020
With the aging of the US population, the number of individuals age 65 or older who will be diagnosed with breast cancer is expected to rise. Despite this, older adults with breast cancer remain severely under-represented in cancer clinical trials. Numerous studies have highlighted disparites in care experienced by older patients with breast cancer. Dr.
Karuturi, Meghan S.   +6 more
openaire   +3 more sources

Fine root biomass and production in Scots pine stands in relation to stand age [PDF]

open access: yesTree Physiology, 2001
We determined fine root biomass and production of 15-, 35- and 100-year-old Scots pine (Pinus sylvestris L.) stands during three growing seasons. Fine roots were sampled by the soil core method. Mean (+/- SE) annual fine root biomass of Scots pine in the 15-, 35- and 100-year-old stands was 220 +/- 25, 357 +/- 21 and 259 +/- 26 g m(-2), respectively ...
Makkonen, K., Helmisaari, H.-S.
openaire   +2 more sources

Forest site conditions and other features of Scots pine stands favorable for bark beetles

open access: yesНаукові праці Лісівничої академії наук України, 2018
The aim of research was to evaluate the dependence of bark beetles foci distribution on forest site conditions as well as on Scots pine stands origin and other characteristics.
Valentyna L. Meshkova   +2 more
doaj   +1 more source

Carbon cycling in mature and regrowth forests globally

open access: yesEnvironmental Research Letters, 2021
Forests are major components of the global carbon (C) cycle and thereby strongly influence atmospheric carbon dioxide (CO _2 ) and climate. However, efforts to incorporate forests into climate models and CO _2 accounting frameworks have been constrained ...
Kristina J Anderson-Teixeira   +7 more
doaj   +1 more source

Using InSAR Coherence to Map Stand Age in a Boreal Forest

open access: yesRemote Sensing, 2012
The interferometric coherence parameter γ estimates the degree of correlation between two Synthetic Aperture Radar (SAR) images and can be influenced by vegetation structure. Here, we investigate the use of repeat-pass interferometric coherence &
Naiara Pinto, Marc Simard, Ralph Dubayah
doaj   +1 more source

Nitrogen accumulation, rather than carbon: nitrogen stoichiometric variation, underlies carbon storage during forest succession

open access: yesEnvironmental Research Letters, 2021
Forest ecosystems play an important role in regulating global temperatures through their capability to take up and store CO _2 from the atmosphere, but the magnitude and sustainability of this carbon ( C ) sink is critically dependent on the availability
Junliang Zou   +4 more
doaj   +1 more source

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