Báo cáo lâm nghiệp: "Cross-calibration functions for soil CO2 efflux measurement systems" doc

... was tested at Vielsalm forest campaign for all systems except for the “PP- Or” system. For this purpose, measurements performed with the dif- ferent particular protocols were compared to measurements obtained with ... The forth campaign was performed in the Chaux forest (June 2004) with “Li-62”, “Li- He”, “PP-Ch” and “PP-Or” on 29 PVC collars. The collars were in- serted in the forest...

Ngày tải lên: 07/08/2014, 16:20

... in CO 2 efflux from forest floor with increasing soil temperature would be greater in cooler-climate sites. cellulose / Japanese forest / soil organic carbon / soil respiration Résumé – Fort potentiel ... temperature and soil temperature measured on sampling days. We defined an “inte- grated soil temperature” as the sum of the daily average soil temper- atures for one year. 2.3....

Ngày tải lên: 07/08/2014, 16:20

... model were used for the parameterization of biomass functions for aboveground biomass and all other components besides dead branches. For each of these components three functions were determined ... gener- ally better for larger trees. To evaluate these differ- ent functions, one may apply relative or absolute measures. For example, MPE estimated for the two selected fun...

Ngày tải lên: 07/08/2014, 10:21

... C.A., Crawford D.F., Seed collections of Eucalyptus globulus subsp. globulus for tree improvement purposes, CSIRO Division of Forest Research, Canberra, 1987. [13] Gardiner C.A., Crawford D.F., ... theoretical model for tree breeding, Appita J. 49 (1996) 90–93. [17] Greaves B.L., Borralho N.M.G., Raymond C.A., Breeding objective for plantation eucalypts grown for production of kraft p...

Ngày tải lên: 07/08/2014, 16:20

... tropical rain forest trees: Issues for forest modelling and management, Ecol. Appl. 9 (1999) 981–997. [7] Curtis J.T., McIntosh R.P., An upland forest continuum in the prairie-forest border region ... sustainability of the participative forest management in the MSDR leading to higher incomes and benefits for the local populations and maintaining the forest’s multiple ecological functions....

Ngày tải lên: 07/08/2014, 16:21

... 763 wood density was 0.426 for Df, 0.385 for Mp and 0.362 for Sp. The whole-ring values of standard deviation were in magnitude order of 0.201 for Df, 0.138 for Ns and 0.106 for Mp, giving coefficients ... significant for ring and zone width, and for wood density distribution position parameters. It was of less significance for dispersion and shape of the distributions in Df...

Ngày tải lên: 08/08/2014, 00:21

... incre- ment equations for tropical rainforests, For. Ecol. Manage. 42 (1991) 143–168. [71] Vanclay J.K., Mortality functions for North Queensland rainfo- rests, J. Trop. For. Sci. 4 (1991) 15–36. ... Techniques for Mixed Tropical Forest, Tropical Forestry Papers 25, Oxford Fores- try Institute, Department of Plant Sciences, University of Oxford, Oxford, 1992. [4] Alvarez-Buylla E....

Ngày tải lên: 08/08/2014, 00:22

... positions are identified: cell number 3 for position 1, 9 for position 2 and 15 for position 3, respectively. 3.2. Step 2: Determination of error zones For each possible demarcation position, ... is changed with/without adjustment. 9 Ann. For. Sci. 63 (2006) 9–14 © INRA, EDP Sciences, 2006 DOI: 10.1051/forest:2005093 Original article A method for multiple intra-ring demarcation of...

Ngày tải lên: 08/08/2014, 00:22

... residuals versus soil temperature for empirical models describing the relationship between soil respiration (R) and either soil temperature at 10 cm depth (T) or soil temperature and soil water content ... m 3 m –3 . Mineral soil is covered with mull type humus. Six sub-plots of about 100 m 2 each were randomly chosen within the experimental plot for soil respiration measur...

Ngày tải lên: 08/08/2014, 01:22

... and a priori formulated models and hypotheses may, of course, accomplish the reduc- tion in a straightforward manner. Alternatively, a reduction is achieved by some multivariate transformation; ... inference and hypothesis testing is straightforward. 2. MATERIALS AND METHODS 2.1. Foliage samples 2.1.1. Balsam fir Foliage samples for reflectance measurements were gathered on two dates in ......

Ngày tải lên: 08/08/2014, 01:22