Results 121 to 130 of about 101,934 (328)

Nitrogen Economy and Nitrogen Environmental Interactions in Conifers

open access: yesAgronomy, 2016
Efficient acquisition, assimilation and economy of nitrogen are of special importance in trees that must cope with seasonal periods of growth and dormancy over many years.
Rafael A. Cañas   +4 more
doaj   +1 more source

Aspects of precommercial thinning in heterogeneous forests in southern Sweden [PDF]

open access: yes, 2005
The overall objective of the work underlying this thesis was to suggest and evaluate possible strategies for the tending of young heterogeneous stands of Norway spruce, Scots pine and birch in southern Sweden.
Fahlvik, Nils
core  

An Improved Protocol for Intact Chloroplasts and cpDNA Isolation in Conifers

open access: yesPLoS ONE, 2014
Background Performing chloroplast DNA (cpDNA) isolation is considered a major challenge among different plant groups, especially conifers. Isolating chloroplasts in conifers by such conventional methods as sucrose gradient and high salt has not been ...
L. N. Vieira   +7 more
semanticscholar   +1 more source

What does coexistence mean? Insight from place‐based trajectories of pastoralists and bears encounters in the Pyrenees

open access: yesPeople and Nature, EarlyView.
Abstract The recovery of large carnivores in Europe raises issues related to sharing landscape with humans. Beyond technical solutions, it is widely recognized that social factors also contribute to shaping coexistence. In this context, scholars increasingly stress the need to adopt place‐based approaches by analysing how humans and wildlife interact ...
Alice Ouvrier   +7 more
wiley   +1 more source

Analysis of NPF and NRT transporter families regarding the nitrate nutrition in maritime pine (Pinus pinaster) [PDF]

open access: yes, 2019
Nitrogen is an essential element for life and the main limiting nutrient for plant growth and development1. The main forms of inorganic nitrogen in soils are nitrate and ammonium, which relative abundances depend on environmental conditions such as ...
Canovas-Ramos, Francisco Miguel   +4 more
core  

Using participatory scenario planning to explore the synergies and trade‐offs from upland treescape expansion

open access: yesPeople and Nature, EarlyView.
Abstract The future of land use in the UK uplands is highly debated, with growing interest in increasing tree cover and other land use changes, alongside a desire to maintain traditional land use patterns and practices. Treescape expansion is likely to result in synergies and trade‐offs between different outcomes, so integrating stakeholder preferences
Melissa Minter   +6 more
wiley   +1 more source

Green pathways to mental health: Relationships between treescapes and well‐being and distress

open access: yesPeople and Nature, EarlyView.
Abstract We aimed to evaluate the mental health benefits and possible mechanisms of objective and subjective treescape exposures whilst also accounting for relationships with residential area greenspace in general. Independent variables were objective measures of residential neighbourhood tree cover density and woody linear features, and a subjective ...
Ian Alcock   +5 more
wiley   +1 more source

Growth response of lutz spruce saplings to the removal of a herbaceous competitor and the application of fertilizer in Southeast Alaska [PDF]

open access: yes, 2014
Thesis (M.S.) University of Alaska Fairbanks, 2014.Herbaceous competitor species such as fireweed can impact future survival and growth of Lutz (Picea x lutzii Little, Pinaceae) spruce saplings. Fertilizer is applied to crop trees in order to supply more
Dickson, Emily
core  

Revitalizing endangered mycocultural heritage in Mesoamerica: The case of the Tlahuica‐Pjiekakjoo culture

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
The preservation and revitalization of mycocultural heritage, developed over centuries of human‐mushroom interaction, contributes to safeguarding both natural ecosystems and the promotion of sustainable rural development, one of the biggest global challenges currently faced by humankind.
Elisette Ramírez‐Carbajal   +8 more
wiley   +1 more source

Detecting and attributing climate change effects on vegetation: Australia as a test case

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Climate change is contributing to vegetation changes that threaten life support systems. Yet, inherent climatic variability and past and present human actions—such as clearing, burning and grazing regimes—also alter vegetation and complicate understanding of vegetation change. Australian ecosystems exemplify such complexity.
Laura J. Williams   +14 more
wiley   +1 more source

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