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An efficient method to reduce grain angle influence on NIR spectra for predicting extractives content from heartwood stem cores of Toona. Sinensis
NIR spectra heartwood stem cores Toona. Sinensis grain angle
2023/6/5
A fast, reliable and non-destructive method is needed to qualify the extractives content (EC) in heartwood of T. sinensis cores in the breeding program for studying the genetic effect on EC. However, ...
Recreational values of forest park using the contingent valuation method (case study: Saravan Forest Park, north of Iran)
willingness to pay environmental economics logit regression model economic values
2016/11/11
The aim of this research was to evaluate the economic values of Saravan Forest Park, north of Iran. The contingent valuation method was used for this propose. In order to do this research, 480 questio...
Determining the recreational value of forest park by travel cost method and defining its effective factors
Shahid Zare Forest Park travel function economic value consumer surplus
2016/10/14
Considering the importance of recreation and excursions in household’s basket of expenditures on the one hand, and not paying attention to the economic value of recreational function for natural resou...