Results 61 to 70 of about 12,639 (211)

Needle flavonoid variation in coastal Douglas-fir (Pseudotsuga menziesii var. menziesii) populations

, 1998
The variability of six Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco var. menziesii) populations was studied with the help of needle flavonoids.
Philippe Lebreton, Alain Bailly, Shiv Shankhar Kaundun   +2 more
core   +1 more source

Mapping Species at an Individual-Tree Scale in a Temperate Forest, Using Sentinel-2 Images, Airborne Laser Scanning Data, and Random Forest Classification

Remote Sensing, 2020
Detailed information about tree species composition is critical to forest managers and ecologists. In this study, we used Sentinel-2 imagery in combination with a canopy height model (CHM) derived from airborne laser scanning (ALS) to map individual tree
Veerle Plakman, Thomas Janssen, Nienke Brouwer, Sander Veraverbeke   +3 more
doaj   +1 more source

A high‐altitude thermal infrared method for estimating moose abundance and demography in Rocky Mountain National Park, USA

Wildlife Biology, Volume 2026, Issue 5, September 2026.
Resource managers require accurate estimates of large herbivore abundance and demography to maintain ecological integrity. Common methods to count these species, including observations from low altitude helicopter flights, may conflict with other protected area management objectives and struggle to produce precise estimates for more cryptic species. To
Hanem G. Abouelezz, N. Thompson Hobbs
wiley   +1 more source

Decades of High Nitrogen Deposition Mainly Enhanced Eutrophication Rather Than Acidification of Dutch Forest Soils

Earth's Future, Volume 14, Issue 9, September 2026.
Abstract In the last decades, forest in the Netherlands have been exposed to high levels nitrogen (N) deposition, which allows to assess the fate and impacts of N and evaluate the concept of N saturation in this large scale “experiment” and related soil acidification.
Anjo de Jong, Wim de Vries
wiley   +1 more source

Pseudotsuga menziesii (Native) 4

, 2011
Pseudotsuga menziesii, cones. Family Pinaceae.
James R. Manhart
core  

Антимикробные свойства эфирного масла Pseudotsuga menziesii

, 2020
Методом паровой дистилляции получены образцы эфирного масла Pseudotsuga menziesii, интродуцированной в Республике Беларусь. С применением газожидкостной хроматографии идентифицировано и определено более 20 компонентов. Доминирующими компонентами являлись
Леонтьев, Виктор Николаевич, Коваленко, Наталья Александровна, Ахрамович, Татьяна Игоревна, Шутова, Анна Геннадьевна, Супиченко, Галина Николаевна, Феськова, Елена Владимировна   +5 more
core  

Evolução dos horizontes orgânicos e de características químicas em solos desenvolvidos sob a espécie Pseudotsuga menziesii [PDF]

, 2011
A natureza e a quantidade de folhada produzida pelas diferentes espécies florestais, apresentam elevada importância no tipo de matéria orgânica formada. Com efeito, a vegetação constitui a principal fonte de resíduos da fracção orgânica do solo, pelo que
Vilela, Ângela Maria Alves, Figueiredo, Tomás de, Fonseca, Felícia   +2 more
core   +1 more source

Regeneración natural arbórea e influencia de factores edáficos de un bosque templado en Guadalupe y Calvo, Chihuahua, México

Polibotánica
La regeneración natural es uno de los principales procesos que ocurren durante la sucesión ecológica en un ecosistema forestal. El objetivo fue caracterizar la composición, riqueza, diversidad y la estructura horizontal, así como determinar los factores
Mario Francisco Mateo-García , Eduardo Alanís-Rodríguez , Samuel Alberto García-García, Luis Gerardo Cuellar-Rodríguez, José Israel Yerena-Yamallel , Oscar Alberto Aguirre-Calderón   +5 more
doaj   +1 more source

Summer Heat Stress Downregulates Photochemistry in Coast Redwoods

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 9, September 2026.
Abstract Coast redwood (Sequoia sempervirens) forests are among the most carbon‐dense ecosystems on Earth, yet parts of their range are increasingly exposed to extreme summer heat and water scarcity. Under these conditions, redwood leaves may face reduced photochemical efficiency or potential damage to photosynthetic systems if needles surpass critical
Lily Klinek, Jessie Au, Milagros Rodriguez‐Caton, Mukund Palat Rao, Lauren Fety, George W. Koch, Troy S. Magney   +6 more
wiley   +1 more source

Pseudotsuga menziesii (Native) 5

, 2011
Pseudotsuga menziesii, bark. Family Pinaceae.
James R. Manhart
core