Báo cáo lâm nghiệp:" Comparison of soil water-contents as measured with a neutron probe and time domain reflectometry in a " ppsx

... 10.1051/forest:2003011 Original article Comparison of soil water-contents as measured with a neutron probe and time domain reflectometry in a Mediterranean forest (“Sierra de Gata”, Central Western Spain) Mar a Amparo ... useful information about the actual evapotranspiration, drainage, and leaching [14]. Over the past decade, interest in water fluxes in...

Ngày tải lên: 08/08/2014, 01:21

... element in plant biomass and undecomposed litter. Conse- quently, the swards of grasses were demonstrated to mitigate the acidification of soil solution and the leaching of basic cations of Ca and ... acidification and base cation losses in a deforested mountain area a ected by acid deposi - tion. Plant and Soil, 268: 35–49. Table 4. Mean content of dry matter,...

Ngày tải lên: 07/08/2014, 03:22

... and- rosaceus was detected. Rare species found here were: Russula azurea, Russula badia, Russula emetica, Amanita fulva, Amanita porphyria. is plot, typical of submountain and mountain natural ... pH evaluation). e method called as “pH–H 2 O” is based on measuring pH of soil samples to which water is added in volume ratio 1:5, and after 5 minutes of agitating and sta...

Ngày tải lên: 07/08/2014, 04:20

... were easily taken away from upper insolated parts of crowns of the previously measured trees. After that, diameters at each 1 m of length of each stem were measured. e first diameter was measured ... processed with statistical soft- ware Statistica 6.0. Means and standard deviations were calculated for each characteristic within each species. Normality of data distribu...

Ngày tải lên: 07/08/2014, 03:22

... stand the amount of throughfall was higher in comparison with the open area whereas in the sparse spruce stand the amount of throughfall was the same in comparison with the open area. Water ... and rainfall sums were the result of different leaf area index and stand density of the studied stands. Water intercepted by the stand canopy of the sparse stand was vap...

Ngày tải lên: 07/08/2014, 04:20

... loading and unload- ing cost considered in the forwarding model which shifts the total cost line upward. Fig. 1 shows that an increasing speed was associ- ated with increasing forwarding distance. ... road spacing. e sum of roading cost and travelling cost was also determined and plotted for different road spacings. e average road construction and maintenance cost in the st...

Ngày tải lên: 07/08/2014, 04:20

... above sea level). Height and diameter growth was investigated within two years after planting. e health status of plants was determined in two years after planting as defoliation index and ... weaker in plugs at the time of outplanting in 2004, equalized with that of bareroot plants within two years. e shoot height that was identical in both types of plantin...

Ngày tải lên: 07/08/2014, 10:22

... de- creased percentage of males at a high amount of trapped beetles in the case of ECOLURE CLASSIC. J and Š (2000) showed that a decrease in pheromone release to 50% led to a decrease in ... ECOLURE CLASSIC gradually decreases and that is why the value of the C/T index also decreases until the bag of ECOLURE CLASSIC is partly opened again. As the effici...

Ngày tải lên: 07/08/2014, 10:22

... 39–48. [14] Garc a- Oliva F., Camou A. , Maass J.M., El clima de la Región Central de la costa del Pacífico Mexicano, in: Noguera F .A. , Vega J.H., Garc a- Aldrete A. N., Quesada M. (Eds.), Historia Natural ... of ecosystems, be- ing a general rule relating forest from Spain and Latin Amer- ica. The lack of this information in some regions constrains the understanding of global...

Ngày tải lên: 07/08/2014, 16:20

... pit apertures or io- dine crystals[6,24,32] were not successful in our case. Based on another sampling for Eperua falcata, Laetia procera Eichl. and Simarouba amara, a specific analysis of MFA was ... m 2 .s −2 ), Crushing strength in bending and in compression (MPa), Tangential, radial and longitudinal shrinkage (%), tangential/radial shrinkage ratio (TS/RS) and transversal...

Ngày tải lên: 07/08/2014, 16:21