Results 71 to 80 of about 714,111 (312)

Preliminary growth of individuals Populus euphratica, gametoclonal and hybrids (P. euphratica with P. alba) at the first 5-years in Dezful botanical garden [PDF]

تحقیقات جنگل و صنوبر ایران, 2010
Poplar trees are appropriate species for plantation and forest rehabilitation because of fast growing and high wood yield, as well as adaptability to unfavorable climate.
Mohammad Hasan Assareh, Abbas Ghamari Zare, Zahra Abravesh, Bahare Allahverdi Mamaghani, Morteza Sharifipour, Shokoofea Shahrzad   +5 more
doaj  

Age Structure and Current Status of Aleppo Pine ( Pinus Halepensis ) Trees on the Western Side of Sidi Alhumry Pine Plantation in Aljabal Al-Akhdar Region

مجلة المختار للعلوم, 2018
Aleppo pine trees have been extensively planted in many areas in Aljabal Al- Akhdar region for ecological and recreational purposes. The objectives of this study were to investigate the age structure and current status of Pinus halepensis.
Attia. A. Alsanousi , Abdusalam. M. Ali   +1 more
doaj   +1 more source

Estimation of acorn production of gall oak (Quercus infectoria Olivier) in Baneh forests using Koenig visual method [PDF]

تحقیقات جنگل و صنوبر ایران, 2011
Study of sexual regeneration of oak species in Zagros forests is very important considering to sever degradation of these forests and decreasing of seed origin oaks.
Mahdi Pourhashemi, Mahdi Zande Basiri, Parisa Panahi   +2 more
doaj   +1 more source

Zmiany struktury użytkowania ziemi w gospodarstwach rolnych województwa kujawsko-pomorskiego w świetle wyników spisów powszechnych rolnictwa z lat 2002 i 2010 [PDF]

, 2014
The study presents the results of the spatial analysis of the total area of agricultural holdings as of 2010 and the changes in these figures as recorded in 2002 and 2010, whereby the agricultural acreage (including: arable lands, permanent crops and ...
Dubownik, Anna, Rudnicki, Roman
core   +2 more sources

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Oak decline in the Zagros Forests: Temporal variation, severity, and environmental and stand structural drivers

Global Ecology and Conservation
We monitored the decline of three oak species, including Quercus brantii, Q. infectoria, and Q. libani, in the Northern Zagros forests of Iran over four years (2019–2022) to identify temporal variation in decline severity and to investigate key ...
Maziar Haidari, Hasan Jahanbazy Goujani, Saman Maleki, Abolfazl Jaafari, Mehdi Pourhashemi, Jalal Henarah, Habibollah Rahimi, Masoume Khanhasani   +7 more
doaj   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

Can forest management based on natural disturbances maintain ecological resilience? [PDF]

, 2006
Given the increasingly global stresses on forests, many ecologists argue that managers must maintain ecological resilience: the capacity of ecosystems to absorb disturbances without undergoing fundamental change.
Andren H., Angelstam P.K., Attiwill P.M., Aubry K.B., Augustine D.J., Banner A., Baskerville G.L., Baskerville G.L., Beisner B.E., Bender D.J., Bengtsson J., Berg A., Berg A., Bergeron Y., Bergeron Y., Bergeron Y., Bergeron Y., Beschta R.L., Brais S., Burton P.J., C Ronnie Drever, Cantrell R.S., Carpenter S., Caspersen J.P., Christian Messier, Cissel J.H., Clark W.C., Cochrane M., Connell J.H., Costanza R., Coyle D.R., D'Eon R.G, Dale V.H., Danell K., De Grandpre L., De Grandpre L., Drapeau P., Dublin H.T., Dussart E., Elmqvist T., Everham E.M.I., Fayt P., Fenton N., Fisher J.T., Flannigan M., Folke C., Forman R.T.T., Foster D.R., Franklin J., Franklin J.F., Franklin J.F., Frelich L.E., Frelich L.E., Garry Peterson, Gunderson L.H., Haeussler S., Hansen A.J., Harmon M.E., Hastings A., Heinselman M.L., Hiebeler D., Hilderbrand G.V., Hoekstra J.M., Holling C.S., Holling C.S., Holling C.S., Holling C.S., Holling C.S., Honnay O., Hunter M.L., Hunter M.L., Imbeau L., Kuuluvainen T., Laurance W.F., Law R., Lecomte N., Levin S.A., Lewontin R.C., Liebhold A.M., Lindenmayer D.B., Logan J.A., Lorimer C.G., Ludwig D., Lundberg J., May R.M., McCann K.S., McRae D.J., Mike Flannigan, Mitchell S.J., Murdoch W.W., Naeem S., Nappi A., Newman E.I., Nierenberg T.R., Nystrom M., Ostrom E., Paine R.T., Palik B.J., Parry D., Pastor J., Payette S., Payette S., Perry D.A., Peterson G.D., Peterson G.D., Peterson G.D., Peterson G.D., Peterson G.D., Purdon M., Quine C., Reeve J.D., Reich P.B., Rodriguez D.J., Saunders D.A., Scheffer M., Scheffer M., Scheffer M., Schindler D.W., Schneider R.R., Schowalter T.D., Sedia E.G., Shields W.J., Simard S.W., Simberloff D., Simberloff D., Sutherland J.P., Taylor A.D., Toman M.A., Trombulak S.C., Turner M.G., Turner M.G., Turner M.G., Turner M.G., Vitousek P.M., Walker B., Walker B., Walker B., Walker B., Weaver J.L., Weyenberg S.A., Wilkinson C.E., Wilson J.B., Yves Bergeron   +142 more
core   +1 more source

On‐Surface Indigo‐Based Bimolecular Coordination Networks with Programmable Regular or Vitreous Structure

Advanced Functional Materials, EarlyView.
A previously unreported coordination motif stabilising single Fe atoms by indigo chelation and pyridyl coordination on Au(111) has been revealed. By using planar tritopic pyridyl linkers (TPyB), extended 2D porous networks of indigo3(TPyB)2Fe6 form. These networks can be crystalline or vitreous and offer an environment where individual coordination ...
Hongxiang Xu, Ritam Chakraborty, Biao Yang, Dennis Meier, Joachim Reichert, Svetlana Klyatskaya, Mario Ruben, Shobhana Narasimhan, Johannes V. Barth, Anthoula C. Papageorgiou   +9 more
wiley   +1 more source

Economics of Naturally Regenerating, Heterogeneous Forests [PDF]

Journal of the Association of Environmental and Resource Economists, 2015
AbstractAn economic model for naturally regenerating, heterogeneous forests is specified to yield both clear-cuts and continuous cover forestry endogenously. The model includes nonconvexities and any number of state variables but is, in its simplest form, a one-state variable problem.
openaire   +2 more sources