19 articles in this issue
A. Huerta,J. Jaramillo,J.E. Araya
The red gum lerp psyllid, Glycaspis brimblecombei Moore (Hemiptera: Psyllidae), was detected in Eucalyptus sp. foliage in Santiago, Chile, in 2002. The successful biological control results obtained in the US and México using Psyllaephagus bliteus Riek (H... see more
A. Ayari,D. Moya,M.N. Rejeb,A. Ben Mansoura,S. Garchi,J. de las Heras,B. Hanchi
Aleppo pine had a large forest cover in North Africa and along the Mediterranean basin which management is not fully developed and new forest tools are required. In this research, the forest structure, epidometric characteristics and allometric relationsh... see more
C. Alegria
Seven silvicultural scenarios for pure and even aged maritime pine stands were simulated using a diameter class growth and yield model, for three levels of site index (low, medium and high). Total and merchantable yield along rotation and mean annual incr... see more
M. Andrés Abellan,C. Wic Baena,F.A. García Morote,M.I. Picazo Cordoba,D. Candel Pérez,M.E. Lucas-Borja
Soil storage method may alter enzymatic activity being storage conditions of the soil samples prior to analysis decisive for the results. Studies made on freshly collected soils are generally preferred. However it is always not possible due to practical r... see more
R. Grote,J. Korhonen,I. Mammarella
Physiologically-based (or process-based) models are commonly applied to describe plant responses mechanistically in dependence on environmental conditions. They are increasingly evaluated with eddy-covariance measurements that integrate carbon and water e... see more
I. Catalin Petritan,B. von Lupke,A. M. Petritan
The horizontal and vertical distribution of live fine roots (diameter < 2 mm) of overstory Norway spruce [Picea abies (L.) Karst.] and their influence on diameter and height growth of underplanted beech (Fagus sylvatica L.) and Douglas-fir (Pseudotsuga... see more
M. Noack
This study presents results on the growth and nutritional status of Quercus petraea trees underplanted in an artificial pine stand as a conversion strategy. A total of 162 plots of 400 to 800 m2 were established in underplanted pine stands (130 plots), na... see more
D. Kacalek,D. Dusek,J. Novak,M. Slodicak,J. Bartos,V. Cernohous,V. Balcar
Forest floor is considered a major feature distinguishing forest from agricultural soils. Forest floor develops as forest stands grow and is composed of more or less altered plant-tissue biomass accumulated on the soil surface. Our study’s aim was to find... see more
A.C. Gonçalves,A. Carvalho Oliveira
Stand regeneration is one of the most important aspects of silviculture as it ensures stand and production perpetuity. Regeneration occurs after one or several disturbances releasing growing space, usually after the elimination of some adult trees. In Nor... see more
M. Gutsch,P. Lasch,F. Suckow,C. Reyer
The process-based forest growth model 4C (FORESEE - FORESt Ecosystems in a Changing Environment) was used to analyze the growth of a mixed oak-pine stand [Quercus petraea (Mattuschka) Liebl., Pinus sylvestris L.]. The oak-pine stand is typical for the ong... see more
J. Novak,M. Slodicak,D. Dusek
A clear-cutting system with soil preparation before replanting is usual for Scots pine stands in many European countries. Additionally, thinning regimes are applied during the rotation. Thus, forest floor is recreated in each rotation and can be influence... see more
G. Pita,A. Rodrigues,J. Mateus,J. Pereira
This paper summarizes results between 2002 and 2010 from eddy covariance measurements of carbon uptake in the 12 month annual growing period eucalypt site of Espirra in Southern Portugal (38° 38’N, 8° 36’ W) . This site, aimed for pulp production is part ... see more
E. Diaz-Pines,A. Rubio,F. Montes
Aboveground litterfall from Pyrenean oak (Quercus pyrenaica Willd. a semi-deciduous species), mixed Pyrenean oak-pine and pine (Pinus sylvestris L.) forest stands was surveyed in two sites in a Mediterranean mountain area during a period of 36 and 29 mont... see more
L. Nunes,J. Coutinho,L.F. Nunes,F. Castro Rego,D. Lopes
Ecosystems with mixed species compared to the ones with pure compositions provide a broader range of options in the fields of biodiversity, conservation, protection and restoration. Industrial plantations in Portugal are mostly monocultures with the predo... see more
P. Seixas Arnaldo,I. Oliveira,J. Santos,S. Leite
The pine processionary moth, Thaumetopoea pityocampa (Den. & Schiff.) (Lep., Thaumetopoeidae) is known as the most defoliating insect in Pinus and Cedrus in many countries. In the last three decades, climate change has led to a substantial expansion of it... see more
E. L. Pereira,S.A.P Santos,M. Arrobas,M.S. Patricio
Mixed stands with nitrogen fixing secondary species can improve the vigour and the stand environment of the targeted species. The aim of this study was to better understand the effect of the consociation of a N-fixing species (black locust) with a broadle... see more
P.A. Tiscar Oliver,M.E. Lucas-Borja,D. Candel Pérez
Silvicultural treatments imply the felling of trees, which can modify species composition and structural diversity. Consequently, it is important to assess the influence of silvicultural treatments on forest composition and structure. The principal object... see more
L. Jr. Rodrigues Nogueira,J.L. de Moraes Gonçalves,V. Lex Engel,J. Parrotta
Brazil’s Atlantic Forest ecosystem has been greatly affected by land use changes, with only 11.26% of its original vegetation cover remaining. Currently, Atlantic Forest restoration is receiving increasing attention because of its potential for carbon seq... see more