Báo cáo lâm nghiệp: "Evaluation of a semi-empirical model for predicting fine root biomass in compositionally complex woodland vegetation" ppsx

... part of a larger project that examined patterns of below- and above-ground biomass in Eu- calyptus populnea woodland ecosystems along a rainfall gradient in northeast Australia [25]. Here, data ... 247 c  INRA, EDP Sciences, 2007 DOI: 10.1051/forest:2007002 Original article Evaluation of a semi-empirical model for predicting fine root biomass in composit...

Ngày tải lên: 07/08/2014, 16:20

... study was to calculate the accumu- lation and the export of nutrients over time in Pinus pinaster (maritime pine) and Pinus radiata (radiata pine) stands under a range of silvicultural alternatives, ... contents Biomass equations for radiata pine and maritime pine recorded by Balboa et al. [4] were used in our simulations. To fit these weighted biomass equations, a total of...

Ngày tải lên: 07/08/2014, 16:21

... some authors [31] claim that the interaction of the above factors can lead to var- ying effects, the truth is that an increase in retention after final felling causes a decrease in the financial ... independently. Compatibility between G and dg models was checked, and in the end the basal area equation was maintained in the model, while the mean quadratic diameter equation was di...

Ngày tải lên: 08/08/2014, 01:22

... Querci-fageta aceris, Querci-fageta tiliae, in the 4 th ve-getation tier Fageta typica, Fageta aceris and in the 5 th ve- getation tier Abieti-fageta typica and Abieti-fageta ace- ris inferiora. ... variables (eleva- tion and potential global radiation) was found to be satisfactory, explaining 84% of data variability. e effect of both variables is linear (see Fig. 6 for elev...

Ngày tải lên: 07/08/2014, 10:21

... University of Delaware, Newark, DE, USA and 2 Department of Mechanical and Aeronautical Engineering, Civil and Environmental Engineering, and Land, Air, and Water Resources, University of California, ... characteris- tics of the parameterizing and testing trains. Force data in response to parameterizing trains Force data in response to parameterizin...

Ngày tải lên: 19/06/2014, 08:20

... 2004 0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 Norway spruce European beech European larch (°C) budbreak 10% beginning of foliage formation 10% beginning of foliage formation 50% beginning of foliage formation 100% fully developed leaf area ... 2005 0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 Norway spruce European beech European larch (°C) budbreak 10% begin...

Ngày tải lên: 07/08/2014, 03:22

... 2 nd generation Research plots were evaluated in the intervals of several years. So data acquired in plantations of dif- ferent age growing in different natural conditions are available. e objective ... rašelina RP indicates high statistical significance of the in uence of provenance of particular variants (clones) (Table 2). Dispositions to the growth rate of particular...

Ngày tải lên: 07/08/2014, 03:22

... northern areas of Iran are known as Hyrcanian Forests and are distributed across three provinces, namely Gilan, Maznadarn and Golestan. These provinces are situated in the north of Iran near the Caspian ... forests form rather a narrow green belt bordering the northern part of the Alborz Mountains and ex- tend from Astara in the west of Gilan Province to Giledarreh in the...

Ngày tải lên: 07/08/2014, 10:21

... threat has been the main reason for initiating activity concerning this issue. A report known as COST 341 was established that presents informa- Evaluation of changes in the landscape management ... area of interest. ese still remained, however, the largest in size. e area of polygons for commercial zone, which already accounted for 8.53% of the area, increased. e...

Ngày tải lên: 07/08/2014, 10:21

... stem and branches Type of damage Description of damage Index Stem damage no damage substitute shoots stem breakages 0 1 2 Branch damage no damage moderate damage (small injuries, breakages of weak ... (ETR) at increasing radiation intensity showed a similar trend among the variants in samples in fresh condition and dam- age caused by freezing test increasing from “small” to “la...

Ngày tải lên: 07/08/2014, 10:21