Showing 1 - 10 of 114
The invasion by the spreading species is one of the most serious threats to biodiversity and ecosystem functioning. Despite a number of empirical and theoretical studies, there is still no general model about why or when settlement becomes invasion. The purpose of this work is to test a model of...
Persistent link: https://www.econbiz.de/10010766050
Public authorities (often local) frequently mandate public or private agencies to manage their natural resources. Contrary to the agency, which is an expert in resource management, public authorities usually do not know the sustainable harvest level. In this paper, we model the contractual...
Persistent link: https://www.econbiz.de/10010886811
We propose to test the portfolio selection theory on the historical data of tree species’ productivities obtained from the French National Forest Inventory (IFN). We determine the optimal timber productivity-vulnerability arrangements out of the combinations of tree species and map the optimal...
Persistent link: https://www.econbiz.de/10010886812
We propose a dynamic graph-theoretic model for ecosystem management as a control over networked system composed of target nodes and unmarked nodes. The network is represented by a complete graph, in which all vertices are connected by a unique edge. Target nodes are attracted by the objective...
Persistent link: https://www.econbiz.de/10010902152
Forest management aims at building ecological networks that minimize the impacts on timber production. We formalize the construction of ecological networks in forest environments as the optimal control dynamic graph-theoretic problem. The ecological network is based on a set of bioreserves and...
Persistent link: https://www.econbiz.de/10010858782
A stumpage hedonic prices model is specified and estimated using ONF’s data on the 1996’s timber autumn sales in Lorraine. The analysis of stumpage price determinants allowed to propose a new model specification that improves former models. This specification uses a new functional form to...
Persistent link: https://www.econbiz.de/10005466656
Wood trade is becoming truly international. Should France start modeling its forest sector in that global context? A panel of forest sector modelers and practitioners were invited to share their experience and suggest ways to model the french forest sector. An international forest sector model,...
Persistent link: https://www.econbiz.de/10005466657
The Laboratory of Forestry economics (LEF) was created in 2000 as a joint research unit of the French Institute of Forestry, Agricultural and Environmental Engineering (ENGREF) and the National Institute of Agronomic research (INRA). The mission of the LEF is to conceive, develop, and transfer...
Persistent link: https://www.econbiz.de/10005466663
It is often argued that forest sectors may benefit from the introduction of an economy-wide carbon tax. This is due to the fact that wood products have generally lower carbon content than their direct substitute. We test this assumption numerically using the French Forest Sector Model (Caurla et...
Persistent link: https://www.econbiz.de/10010766046
Given the importance of anthropogenic determinants in forest ecosystems within Europe, the objective of this paper is to link the evidence arising from biological models with socioeconomic determinants, where the expected returns of forest investments represent the main driver. An...
Persistent link: https://www.econbiz.de/10010766047