Báo cáo lâm nghiệp: "A framework for data quality for Mediterranean sustainable ecosystem management" pdf

... this is the first data quality framework proposed for Mediterranean ecosystem management planning. Hopefully it will provide a basis for further studies on Mediterranean data quality and it will contribute ... of interfaces for data insertion Data insertion Data insertion in the information system Data transformation Development of data transformation algorithm...

Ngày tải lên: 08/08/2014, 01:22

... to perform a graphical analysis of the residuals, searching for dependencies or patterns that indicate systematic discrepancies [13, 22, 31, 44]. A portion of the data was not reserved for model ... models for tropical forests on Hainan Island in Southern China, For. Ecol. Manage. 110 (1998) 315–327. [15] Ferguson I.S., Leech J.W., Generalized least squares estimation of yield functi...

Ngày tải lên: 08/08/2014, 00:22

... 14] and Najar [11] used this same form respectively for Norway spruce and for Maritime pine in pure even-aged stands (without the null growth for Maritime pine for trees suppressed sufficiently to ... heteroscedasticity of data, observations were weighted by 1/C i 2 . This model was studied for Norway spruce, using a data set especially collected for this project. These data...

Ngày tải lên: 08/08/2014, 01:21

... were based on field data, the comparison was made from second order roots to the highest order with enough field data for calculating standard deviations when the E. lanceolata data was divided ... use the general average values for the whole root system. The α values for E. lanceolata and G. sepium, 1.15 and 1.14, respectively, cor- respond to value 1.19 for parameter a in the...

Ngày tải lên: 08/08/2014, 01:21

... slash pine plantations, South. J. Appl. For. 14 (1990) 104–109. [32] Rennols K., Peace A., Flow models of mortality and yield for unthinned forest stands, Forestry 59 (1986) 47–58. [33] Sánchez ... Akça A., Forest Mensuration, Cuvillier Verlag, Göttingen, 1997. [37] Vanclay J.K., Modelling forest growth and yield. Applications to mixed tropical forests, CAB International, Wallingford, 1994...

Ngày tải lên: 08/08/2014, 01:21

... western Montana, West. J. Appl. For. 7 (1992) 9–14. [19] Monserud R.A., Height growth and site index curves for inland Douglas-fir based on stem analysis data and forest habitat type, For. Sci. 30 (1984) ... Nevadas, USDA Forest Service Research Paper PSW-191, 1988. [8] Elfving B., Kiviste A., Construction of site index equations for Pinus sylvestris L. using permanent plot data in...

Ngày tải lên: 08/08/2014, 01:22

Ngày tải lên: 07/08/2014, 16:20

... biological and the risk indicators, null weights for the others 4 1 Wood quality Same weights for the 3 wood quality indicators, null weights for the others 2 5 Figure 4. Scenario classification ... 1999. [7] Buongiorno J., Generalization of Faustmann’s formula for stochas- tic forest growth and prices with Markov decision process models, For. Sci. 47 (2001) 466−474. [8] Duplat P....

Ngày tải lên: 07/08/2014, 16:21

... Clarke F.R. (Eds.), Forecasting forest stand dynamics, School of Forestry, Lakehead University, 1980, pp. 138−163. [57] Hyink D.M., Moser J.W., A generalized framework for projecting forest yield and ... curves for inland Douglas-fir based on stem analysis data and forest habitat type, For. Sci. 30 (1984) 943−965. [75] Newberry J.D., A note on Carmean’s estimate of height from stem a...

Ngày tải lên: 07/08/2014, 16:21

... time is required for the laboratory measurements (up to 4 h for one 2-m-long log) in addition to the field work. Furthermore, it is a destructive method and therefore is not suitable for forest inventories. While ... proposed to perform the data acquisition process from the two photographs and to transform the stem dimensions and 3-D position from pixels to units of length. The accurac...

Ngày tải lên: 07/08/2014, 16:21