This study uses PCR-derived marker systems to investigate the extent and distribution of genetic variability of 53 Garnacha accessions coming from Italy, France and
Our aim was to explore the adaptation choices to climate change in the grapevine regions of Spain from two points of view. First, what are the main reasons for concern? Second, how large is the adaptation effort in each region? We address the first question by measuring sensitivity to climate change with Huglin, Cold Night and Dryness Indices over the entire territory, providing information on the adaptation type (e.g. varieties, zoning, water allocation). We then estimate probabilistic projections across scenario, zone and sensitivity indices in the 56 Protected Designation of Origin areas to inform on the magnitude of the adaptation effort. Second, we propose an adaptation effort measure that is framed according to the local environmental context. Results suggest that most areas urgently need an adaptation plan due to the deterioration of production and quality indices as a result of climate change. Potential opportunities in many climate regions might be limited by current policy. The production objectives of quality and quantity trade-offs will probably need to be revised by analysing the sustainability of grapevine production.
Abstract. We follow a user-based approach to examine how information supports
operational drought management decisions in the Ebro basin and how these can
benefit from additional information such as from remote sensing data. First
we consulted decision-makers at basin, irrigation district and farmer scale
to investigate the drought-related decisions they make and the information
they use to support their decisions. This allowed us to identify the courses
of action available to the farmers and water managers, and to analyse their
choices as a function of the information they have available to them. Based
on the findings of the consultation, a decision model representing the
interrelated decisions of the irrigation association and the farmers was
built. The purpose of the model is to quantify the effect of additional
information on the decisions made. The modelled decisions, which consider the
allocation of water, are determined by the expected availability of water
during the irrigation season. This is currently informed primarily by
observed reservoir level data. The decision model was then extended to
include additional information on snow cover from remote sensing. The
additional information was found to contribute to better decisions in the
simulation and ultimately higher benefits for the farmers. However, the ratio
between the cost of planting and the market value of the crop proved to be a
critical aspect in determining the best course of action to be taken and the
value of the (additional) information. Risk-averse farmers were found to
benefit least from the additional information, while less risk-averse farmers
stand to benefit most as the additional information helps them take better
informed decisions when weighing their options.
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