Results 11 to 20 of about 3,867,737 (309)

Evaluation of the Site Form as a Site Productive Indicator in Temperate Uneven-Aged Multispecies Forests in Durango, Mexico

open access: yesPlants, 2022
Even though the site index is a popular method for describing forest productivity, its use is limited in uneven-aged multispecies forests. Accordingly, the site form (SF) is an alternative measure of productivity to the site index based on the tree ...
Jaime Roberto Padilla-Martínez   +5 more
doaj   +1 more source

Proposal for Tower Crane Productivity Indicators Based on Data Analysis in the Era of Construction 4.0

open access: yesBuildings, 2021
This article proposes a methodology to measure the productivity of a construction site through the analysis of tower crane data. These data were obtained from a data logger that records a time series of spatial and load data from the lifting machine ...
Thomas Danel   +4 more
doaj   +1 more source

Effects of Elevated CO2 on Wheat Yield: Non-Linear Response and Relation to Site Productivity

open access: yesAgronomy, 2019
Elevated carbon dioxide (eCO2) is well known to stimulate plant photosynthesis and growth. Elevated carbon dioxide’s effects on crop yields are of particular interest due to concerns for future food security.
Malin C. Broberg   +3 more
doaj   +1 more source

SITE INDICATOR SPECIES FOR PREDICTING THE PRODUCTIVITY OF TEAK PLANTATIONS IN PHRAE PROVINCE, THAILAND

open access: yesBiotropia: The Southeast Asian Journal of Tropical Biology, 2020
Site quality assessment is critically important in any tree planting activity as it may serve a range of management functions such as, optimizing productivity estimates of forest plantations.
Narinthorn Jumwong   +3 more
doaj   +1 more source

Tension between Productivity and Respect for People in Construction [PDF]

open access: yesMATEC Web of Conferences, 2020
Productivity in the construction industry is declining in real-time. The decline in productivity is a source of worry for practitioners and researchers.
Mollo Lesiba George   +2 more
doaj   +1 more source

Site index research: a literature review

open access: yesLeśne Prace Badawcze, 2020
The purpose of this paper was to review literature covering the topic of site index with particular emphasis on Scots pine, the most important forest-forming species in Poland.
Kędziora Wojciech   +2 more
doaj   +1 more source

Site properties, species identity, and species mixture affect fine root production, mortality, and turnover rate in pure and mixed forests of European Beech, Norway spruce, and Douglas-fir

open access: yesEcological Indicators, 2023
It is already well known that the effects of tree diversity on aboveground wood productivity depend on tree species identity and site conditions and thus can vary among different tree mixtures and forest sites.
Amani S. Lwila   +3 more
doaj   +1 more source

Site Index and Volume Growth Percentage Determination for Privately Owned Uneven-aged Stands of Quercus pubescens and Quercus ilex along the Croatian Adriatic Coast

open access: yesSouth-East European Forestry, 2019
Background and Purpose: Although organized forestry has existed in Croatia for more than 250 years, this mostly entailed state forests. During the last decade, Extension Services have started to support the development of forest management plans for ...
Alen Berta   +3 more
doaj   +1 more source

Determining the most important environmental variables affecting on oriental beech (Fagus orientalis Lipsky.) site productivity using random forest technique in Khayroud forest, Nowshar [PDF]

open access: yesمجله جنگل ایران, 2017
Studying the relationship between site productivity, as a key indicator in forest management, and environmental variables is an important issue in forestry.
سید جلیل علوی   +2 more
doaj  

Extrarenal Sites of Erythrogenin Production

open access: yesExperimental Biology and Medicine, 1973
SummaryExposure of young nephrectomized male rats to severe hypoxia results in the appearance of highly significant quantities of erythrogenin in the liver and spleen. The amounts evoked in these 2 organs are greater than in the livers and spleens, and approximately equal to those in the kidneys of young male non-nephrectomized rats exposed to a ...
S M, Kaplan   +5 more
openaire   +2 more sources

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