Báo cáo lâm nghiệp: "Nutrient dynamics in decomposing needles of Pinus luchuensis after typhoon disturbance in a subtropical environment" pps

... The area is characterized by a subtropical climate and abun- dant rainfall throughout the year. Annual mean temperature is about 21.8 ◦ C. Annual mean rainfall is 2680 mm over last 30 years (Ex- perimental ... 707 c  INRA, EDP Sciences, 2006 DOI: 10.1051/forest:2006051 Original article Nutrient dynamics in decomposing needles of Pinus luchuensis after typhoon disturban...

Ngày tải lên: 07/08/2014, 16:20

... Forata and Benissa). In 1994–1995, rainfall was around 60% of the historical annual average, whereas in 1993, rainfall was close to historical values in six sites (Ayora, Buñol, Martés M and ... V.R., Plantaciones para la restauración forestal en la Comunidad Valen- ciana, in: Vallejo V.R. (Ed.), La restauración de la cubierta vegetal en la Comunidad Valenciana, CEAM, Valencia, 1997,...

Ngày tải lên: 08/08/2014, 00:22

... Laguna, Avda. Astrofísico Francisco Sánchez s/n.38207, La Laguna, Tenerife, Canary Islands, Spain b Institute of Botany, University of Innsbruck, Sternwartestrasse 15, 6020 Innsbruck, Austria c Federal ... resistance of needles in seedlings of P. canariensis in different stages of development: currently expanding, fully expanded, and 1 year old needles. Some seeds of P. can...

Ngày tải lên: 07/08/2014, 16:20

... typical climate has been defined as a pre-Alpine continental climate. Mean rainfall is about 1150 mm with a maximum in autumn and a minimum in winter (between January and March). Winter temperatures ... Prunus mahaleb L. (Mahaleb cherry) and Fraxinus ornus L. (Manna ash). These species are dominant components of the vegetation developing during the natural encroachment of abando...

Ngày tải lên: 08/08/2014, 01:21

... population statistical evaluation of data was usually done on a standard significance level P < 0.05. e basic assumptions about data were as- sessed by exploratory data analysis (EDA) according ... the growth of certain polymorphs of cal- cium carbonate. Quantitative data from fraction- ated chemical analyses in spruce needles document clearly that the oxalate serves as a...

Ngày tải lên: 07/08/2014, 03:22

... Abies alba and Ostrya carpinifolia at all scales in plot 2, and between Abies alba and Castanea sativa and Fagus sylvatica versus Castanea sativa in plot 1 (Fig. 4) at 1 m. On the contrary, a ... 10.1051/forest:2005059 Original article Spatial dynamics of late successional species under Pinus nigra stands in the northern Apennines (Italy) Giustino TONON a *, Pietro PANZACCHI...

Ngày tải lên: 08/08/2014, 00:22

... stand structure of an aging stand may show a different pattern of fine litterfall after typhoon disturbance. Because disturbance- generated input can have a significant Table III. Comparison data ... and his unpublished data (Kaminaka, personal communication). These data were obtained from a similarly aged (ca. 50 years) Castan- opsis cuspidata stand near the study site. This...

Ngày tải lên: 08/08/2014, 01:21

... dominant stand and the volume of dead trees is not included in the calculation. Stand density was calcu- lated according to standard mensurational practice from the ratio of actual basal area ... permanent thinning plots in the traditional layout. e total area of the stand part is 1.14 ha. e stand is situated on a plateau sloping slightly northward at an altitude of 460...

Ngày tải lên: 07/08/2014, 03:22

... in autumn, after the leaf fall in 2004–2006. Particular samples were taken by a standard method using the metal frame of a known area (0.1 m 2 ). In each of the four stands, 10 samplings of ... the regulator of runoff of rainfall water in watersheds, decreases the hazard of floods in piedmont and lowland regions, intercepts consider- able amounts of rainfall w...

Ngày tải lên: 07/08/2014, 03:22

... density increase along a ring was mainly due to tra- cheid anatomical changes: i.e. tracheid cell-wall thickening and tracheid radial diameter diminution. Packing density aug- mentation and tracheid ... which best correlated with wood density. From an image analysis point of view, an anatomical image of a tree-ring can be summarised as a black square of constant area where lumens...

Ngày tải lên: 07/08/2014, 16:20