Results 1 to 10 of about 3,026,658 (154)

Plot size matters: Toward comparable species richness estimates across plot-based inventories. [PDF]

open access: yesEcol Evol, 2022
AbstractTo understand the state and trends in biodiversity beyond the scope of monitoring programs, biodiversity indicators must be comparable across inventories. Species richness (SR) is one of the most widely used biodiversity indicators. However, as SR increases with the size of the area sampled, inventories using different plot sizes are hardly ...
Portier J   +8 more
europepmc   +6 more sources

Effects of field plot size on prediction accuracy of aboveground biomass in airborne laser scanning-assisted inventories in tropical rain forests of Tanzania. [PDF]

open access: yesCarbon Balance Manag, 2015
Mauyaetal.CarbonBalanceandManagement (2015) 10:10 DOI 10.1186/s13021-015-0021-x © 2015 Mauya et al.; licensee Springer. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/
Mauya EW   +5 more
europepmc   +4 more sources

PLOT-SIZE IN YIELD SURVEYS [PDF]

open access: yesNature, 1947
RECENT communications by Sukhatme1'2 and Mahalanobis3 have established the conclusion that sample plots of a small size (25 sq. ft. or less according to Mahalanobis) give biased estimates of yield in sample surveys ; but whereas Sukl tme has shown the bias to. persist evenwith a plot-size of 118 sq.
Desiere, Sam, Jolliffe, Dean
openaire   +4 more sources

Spatiotemporal changes in biomass after selective logging in a lowland tropical rainforest in peninsular Malaysia [PDF]

open access: yes, 2021
We studied biomass changes in a lowland tropical rain forest in the Pasoh Forest Reserve of Peninsular Malaysia after selective logging in 1958. A tree census was undertaken every 2 years from 1998 to 2012 in a 6-ha logged forest plot.
Eng, Seng Quah   +9 more
core   +1 more source

Experimental plot size of passion fruit [PDF]

open access: yesRevista Brasileira de Fruticultura, 2020
Abstract The determination of the plot size is a practical matter pertinent to the experimental planning, and its optimal characterization allows to obtain higher precision and better quality in the results. Therefore, in this study, the main goal was to determine the plot size in experiments of passion fruit in two uniformity tests with Passiflora ...
Glaucia Amorim Faria   +5 more
openaire   +5 more sources

Chiral Perturbation Theory and Finite Size Effects on the Nucleon Mass in unquenched QCD [PDF]

open access: yes, 2003
We calculate finite size effects on nucleon masses in chiral perturbation theory. We confront the theoretical predictions with N_f=2 lattice results and discuss chiral extrapolation formulae.Comment: talk at Lattice 03 (spectrum), 3 pages latex, 3 ...
A. Ali Khan   +18 more
core   +2 more sources

Heterogeneity, plot shape effect and optimum plot size

open access: yesGeoderma, 1994
By introducing heterogeneity indices, an empirical equation is proposed for characterizing the heterogeneity of non-isotropic fields. The formula is an extension of Fairfield Smith's (1938) empirical law describing heterogeneity in isotropic fields. Based on these indices, criteria are provided for choosing optimum plot shapes in terms of minimizing ...
R. Zhang, A.W. Warrick, D.E. Myers
openaire   +1 more source

Optimal plot size for cabbage experiments

open access: yesResearch, Society and Development, 2020
Among the factors that influence the detection of minimum significant differences between treatments in conventional experiments is the size of the plot, whose correct determination allows the reduction of experimental error, consequently, increases the precision of the experiment and the reliability of the interpretations and conclusions obtained ...
Vinicius de Freitas Mateus   +19 more
openaire   +2 more sources

Optimal experimental plot size for papaya cultivation [PDF]

open access: yesPesquisa Agropecuária Brasileira, 2019
Abstract: The objective of this work was to determine the optimal size of experimental plots for the evaluation of agronomic characteristics and fruit quality of papaya, by the linear model of plateau response, under soil and climatic conditions of the Recôncavo Baiano region, in the state of Bahia, Brazil. The experiment consisted of a uniformity test,
Mauricio dos Santos da Silva   +6 more
openaire   +4 more sources

Universality in snowflake aggregation [PDF]

open access: yes, 2003
Aggregation of ice crystals is a key process governing precipitation. Individual ice crystals exhibit considerable diversity of shape, and a wide range of physical processes could influence their aggregation; despite this we show that a simple computer ...
C. D. Westbrook   +6 more
core   +2 more sources

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