Maintaining ecosystem continuity has become a central element in spatial planning policies. Several authors acknowledge the environmental, also known as landscape, fragmentation due to human action as one of the main causes which have negative effects on biodiversity. The phenomenon consists of the transformation of larger patches of habitat in smaller ones, or fragments, which tend to be more isolated than in the original condition. It is extremely evident in urban areas, including settlements and various transport and mobility infrastructures, whose main ecological effects include loss of habitat, increased mortality of plants, and isolation of animal and vegetal species. In this paper, we assess landscape fragmentation dynamics of six landscape units belonging to two European regions, i.e. Sardinia in Italy (from 2003 to 2008), and Andalusia in Spain (from 2005 to 2009). We developed on three indices: the Infrastructural Fragmentation Index (IFI), the Urban Fragmentation Index (UFI), and the Connectivity Index (CI). We found that coastal areas generally suffer from an higher pressure due to the demand of longer or faster transport infrastructures and new settlements and less fragmented areas tend to show the most relevant dynamics in a sort of convergent pattern. Even though landscape fragmentation and connectivity are intuitively complementary phenomena, in this paper we did not found any statistical evidence of this associative property.

The “albergo diffuso” (scattered hotel) is a typical Italian tourism system, introduced for the first time inthe early 1980s by the Autonomous Region of Friuli-Venezia Giulia. It is a tourist accommodation man-agement system that is able to deliver the services of a full hotel, by lodging clients in accommodationcreated in and around existing houses in mostly rural contexts. The accommodation is within walkingdistance of a centrally located main building. The albergo diffuso is organised horizontally, while tradi-tional hotels are usually organised vertically, with a principal, and often single, building hosting commonspaces and rooms. This new kind of hospitality offers visitors the opportunity of “living in the area”, bytaking part in the social life of the village, and may be seen as a tool for preventing the depopulationof small rural towns and for recovering abandoned villages. In this paper we discuss a proposal for analbergo diffuso in Osini, in Sardinia, Italy. Osini is an old rural village that was abandoned in 1951 becauseof a severe landslide. We verify the premises and viability of this intervention in terms of the opportunityit offers for launching rural tourist activities in the area, the European and national legal and institu-tional scenario, the regional landscape and hydro geological planning tools, and the recommendationsfor adopting coherent building types, techniques, and materials

The assessment and management of landscape fragmentation (LF), i.e., the subdivision of the habitat into smaller and more isolated patches, can benefit from the adoption of a composite indicator explaining, in a unique measure, the various concerns involved. However, the use of composite indicators may be affected by lack of data, subjectivity in algorithm design, and oversimplification connected to reduction to just one index. In these cases, the findings obtained might not provide the researcher with reliable information. In this paper, we design and apply the Composite Indicator of Landscape Fragmentation (CILF), a metric resuming three indicators concerning the effect on LF of transport and mobility infrastructures, human settlements, and patch density per se. The application concerns the measurement of LF spatial pattern and dynamics from 2003 to 2008 of 51 landscape units in the island of Sardinia (Italy). We considered a complete spatial data set, chose the generalized geometric mean as aggregation algorithm, and verified its robustness via sensitivity analysis of the results. We found that, in 2003 and 2008, the CILF spatial pattern shows higher values in coastal areas and has varied randomly, i.e., without a consistent tendency to converge to, or diverge from, a mean value. Overall, we demonstrate that the CILF is a powerful instrument for monitoring LF in Sardinia and advocate that it can be further implemented, following the same methodological framework, by extending the pool of indicators considered and assessing a weighted version of the composite indicator.

Adaptation to climate change and sustainable development have become core elements of international, European, and national policies and strategies. At worst, adaptation to climate change can trigger negative responses—maladaptation—in terms of raising greenhouse-gas emissions and exacerbating the vulnerability of specific groups of people, which both run counter to sustainable development principles. Thus, the integration of sustainable climate change adaptation objectives into a sustainable development framework can pave the way for planning scenarios, in which resilience intertwines with sustainability. Studies concerning this issue are quite lacking, and methods useful for assessing the relationship ‘adaptation-sustainable development’ are scarcely investigated. In this study, we focus on environmental sustainability and aim at proposing and applying a method for assessing the coherence between climate change adaptation objectives and sustainable development objectives (i.e., national strategic goals) included in the Italian National Adaptation Plan to Climate Change and, respectively, in the National Sustainable Development Strategy. We found that most adaptation objectives appear to be unrelated with national strategic goals, while none of them clearly hinder environmental sustainability, that is, the adaptation objectives are not inclined to promote maladaptation. There is still plenty of room to work on sustainable adaptation objectives to be consistent with sustainable development ones.