Results 121 to 130 of about 150,384 (314)

Interactions between natural and anthropogenic impacts on the genetic diversity and population genetic structure of European beech forests [PDF]

open access: yes, 2014
The accurate assessment of forest persistence under environmental change is dependent on the fundamental understanding of the genetic consequences of human intervention and its comparison to that of natural processes, as declines in genetic diversity and
Maria Jennifer Sjölund   +1 more
core  

The effects of stand characteristics on the understory vegetation in Quercus petraea and Q. cerris dominated forests

open access: yes, 2013
The shelterwood system used in Hungary has many effects on the composition and structure of the herb layer. The aim of our study was to identify the main variables that affect the occurence of herbs and seedlings in Turkey oak-sessile oak (Quercus cerris
Ódor, Péter   +8 more
core   +1 more source

Adaptability experiment of 21 poplar clones for introducing the most suitable clones in Markazi province [PDF]

open access: yesتحقیقات جنگل و صنوبر ایران, 2009
World increasing demand for wood production, caused the increasing impact to natural forest. Short term exploitation and improvement of wood production have been reduced these impacts.
Gholam Reza Goodarzi   +3 more
doaj  

Nature and forest education in the Rudnik Forest District

open access: yesForest Research Papers, 2009
Edukacja przyrodniczo-leśna w Nadleśnictwie ...
openaire   +1 more source

All‐Polyimide‐Mediated Liquid Metal Assembly on Aerogels for Breathable and Robust Electronic Skins

open access: yesAdvanced Materials, EarlyView.
An all‐polyimide‐mediated assembly strategy resolves the fundamental conflict between physiological breathability and electromechanical robustness in wearable electronics. By integrating a polyamic acid‐encapsulated liquid metal ink onto an ultralight polyimide aerogel, imidization‐induced contraction enables low‐temperature conductive activation and ...
Haijun Zhu   +18 more
wiley   +1 more source

Practical hydrological protection for tropical natural forests: the Malaysian experience. [PDF]

open access: yes, 2007
Synergies between hydrological research and certification of natural forest management in the humid tropics give rise to water protection standards that are also partially applicable to forest plantations and agroforestry ...
Chappell, Nick A, Thang, Hooi Chiew
core  

Conductive Additives for Next‐Generation Batteries: Emphasizing the Potential of Bio‐Derived 3D Carbon Architectures at Electrode–Electrolyte Interfaces

open access: yesAdvanced Materials Interfaces, EarlyView.
3D conductive frameworks can maintain continuous electron transport, mechanical stability, and interfacial integrity, helping next‐generation batteries operate more efficiently. This Review examines their relevance to Si anodes, all‐solid‐state batteries, and dry‐processed electrodes, and highlights bio‐derived carbons as sustainable, structurally ...
SeoYoung Ha   +5 more
wiley   +1 more source

Diversity of bryophyte flora and vegetation on rotten wood in rain and montane forests of northeastern Tanzania

open access: yes, 1999
Decomposing wood forms the substrate for special lignicolous, hygrophilous, and sciophilous plant communities. In a moist tropical forest, vegetation on this substrate consists mostly of bryophytes. The material gathered from Mt.
Mattila, Päivi, Koponen, Timo
core  

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