Báo cáo lâm nghiệp: "Precipitation partitioning and related nutrient fluxes in a subtropical forest in Okinawa, Japan" ppt

... 42]. Okinawa Island, especially in its northern part, is mainly covered by evergreen broad-leaved native forest dominated by Castanopsis sieboldii Hatusima ex Yamazaki & Mashiba (Fagaceae) and ... 245–252 © INRA, EDP Sciences, 2005 DOI: 10.1051 /forest: 2005016 Original article Precipitation partitioning and related nutrient fluxes in a subtropical forest in Oki...

Ngày tải lên: 08/08/2014, 00:21

... reaction Both actual (in H 2 O) and exchangeable (in nKCl) pH was determined. In the surface humus, values of both actual and exchangeable pH decrease with increasing depth (Figs. 2 and 3) in ... carried out in the Sta- tistics Program (Stat-Soft Inc., Tulsa, USA). Sin- gle-factor analysis ANOVA was used and for the Table 2. Stand characteristics and statistical differenc...

Ngày tải lên: 07/08/2014, 03:22

... (Fagarè and Spazzacamini) and 0.104 (Campigna and Valle Tanaro) (data not shown). Al- most all pairwise F ST values were significantly greater than zero, confirming the presence of a slight, although ... Italian and Bulgarian populations is remarkable, and palaeontological data support the hypothesis that southeastern Europe has been an impor- tant refuge for plant species, includin...

Ngày tải lên: 07/08/2014, 16:20

... 4.52) acbcabaab aaaaaa 2.7. Data analysis The data were analysed using an analysis of variance (ANOVA) technique for a randomized complete block design. When treatment differences occurred, a Bonferroni ... poplar biomass partitioning Variations in biomass partitioning were mainly associated to tree height (Tab. II). In the 2YS, plants decreased their allo- cation to roots and ra...

Ngày tải lên: 07/08/2014, 16:20

... [24]. Table II. Mean, standard deviation and range of the main characteristics of the sample trees subjected to stem analysis in the two studied areas (CAT and PNLA). Area n Variable Minimum Maximum ... METHODS 2.1. Data Stem analysis data were obtained from two different cork oak areas in Spain (Fig. 1): the Natural Park of “Los Alcornocales” in the South and Catalonia in the N...

Ngày tải lên: 08/08/2014, 00:22

... comparable diameter in an experimental stand (Hesse) in northeastern France [24]. Biomass increment and carbon balance of ash 579 layer to total foliage biomass was calculated for each level using ... article Biomass increment and carbon balance of ash (Fraxinus excelsior) trees in an experimental stand in northeastern France Noël LE GOFF a *, André GRANIER b , Jean-Marc OTTOR...

Ngày tải lên: 08/08/2014, 01:22

... moun- tain (P. nigra and C. atlantica) and coastal species (P. halepensis and C. sempervirens). C. atlantica, a mountain species in many North African and Southern France locations, displayed con- sistently ... Jouinau produced and maintained the plant material at INRA Avignon, and Jean Marie Gioria at INRA Nancy. Patrick Gross (INRA Nancy) designed the device used to measure...

Ngày tải lên: 08/08/2014, 01:22

... installed in small forest clearings, minimally 30 m inwards the forest. e forest clearings are covered mainly by rough reedgrass (Calamagrostis arundinacea) and shrubs like bird cherry (Padus racemosa) ... humulinus, Dichrostigma flavipes, Phaeostigma notata, Panorpa communis and Panorpa germanica) is discussed. Keywords: Malaise traps; Neuroptera; Raphidioptera; Mecoptera; sea...

Ngày tải lên: 07/08/2014, 03:22

... 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 ... potential and stability of mixed forest stands in uplands. A mixed beech/larch stand that was established by natural regeneration in 1934 to 1942 is assessed. e stand is situated a...

Ngày tải lên: 07/08/2014, 03:22

... harmfulness. An “alder” biological form was studied in Alnus glutinosa and A. incana mainly in Polnička Forest District (Žďár region) and a “willow” form in Salix viminalis, S. triandra and S. caprea in ... bud- ding and the time of beetle invasion or due to heavy Table 1. Abundance of G. lineola imagoes at sweeping on A. glutinosa and A. incana (Polnička, 1996). e...

Ngày tải lên: 07/08/2014, 03:22