Results 121 to 130 of about 50,462 (231)

Study on soil detritivors and microbial activity in understory of broad-leaved pure and mixed stands in Caspian forests [PDF]

open access: yesمجله جنگل ایران, 2018
The activity of terrestrial organisms and their populations is an appropriate index for assessing the quality and health of the soil in forest ecosystems, which related to the fertility, and reproduction of the habitat.
Yahya Kooch, Mahmood Tavakoli
doaj  

MP 2012-01 [PDF]

open access: yes, 2012
In 1994 the University of Alaska Fairbanks, School of Natural Resources and Agricultural Sciences, Agricultural and Forestry Experiment Station began a project to establish permanent sample plots (PSP) throughout the forests of northern and ...
Liang, JingJing   +2 more
core  

Efecto de la posición de los frutos en el Estrobilo y tamaño de los mismos, sobre el porcentaje de germinación en Alnus Acuminata H.B.K. (Betulaceae)

open access: yesCaldasia, 1986
Se ha observado en algunas especies que el tamaño de las semillas puede determinar el mayor o menor porcentaje de germinación de las mismas, especialmente si se trata de especies forestales.En este trabajo se evaluaron nueve tratamientos con el fin de ...
Ruiz Peña María Cristina   +1 more
doaj  

South American polypores : first annotated checklist from Argentinean Yungas [PDF]

open access: yes, 2007
A preliminary checklist of the polypore mycota of “Yungas”, subtropical mountain forests of northwestern Argentina, is presented. An intensive search of records in literature was done, and polypore exsiccatae from that phytogeographic province kept at ...
Rajchenberg, Mario   +1 more
core  

Green-Down Protocol [PDF]

open access: yes, 2003
The purpose of this resource is to observe plant green-down and report greendown data to help validate estimates of the end of the plant growing season. Students monitor the change in color of selected leaves of trees, shrubs or grasses.
The GLOBE Program, University Corporation for Atmospheric Research (UCAR)
core  

Alnus glutinosa L.

open access: yes, 1956
Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp.
openaire   +1 more source

Do current biomass equations for Alnus glutinosa and Betula pubescens misestimate carbon stocks at peatland sites? [PDF]

open access: yesCarbon Balance Manag
Gercken H   +7 more
europepmc   +1 more source

From Plant to Skin: Exploring <i>Alnus glutinosa</i> Extracts for Cosmeceutical Applications. [PDF]

open access: yesAntioxidants (Basel)
Bikiaris ND   +4 more
europepmc   +1 more source

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