The Extent of Infrastructure Causing Fragmentation in the Hydrocarbon Basin in the Arid and Semi-Arid Zones of Patagonia (Argentina)

Sustainability

Rosa Lasaponara¹  Mariana Buzzi²  Bárbara Rueter²  Luciana Ghermandi³ 

[1] CNR-IMAA C, da S. Loya Tito zona Industriale, 85050 Potenza, Italy;Departamento de Biología y Ambiente, Universidad Nacional de la Patagonia San Juan Bosco, Chubut 9000, Argentina;INIBIOMA, CONICET, Universidad Nacional del Comahue, Río Negro 8400, Argentina;

关键词: connectivity;    landscape metrics;    principal components analysis;    fragstats;   

DOI  :  10.3390/su11215956

来源: DOAJ

【 摘 要 】

Fragmentation is a disruption in the connectivity of landscapes. The aims of this paper are (i) to quantitatively assess the fragmentation rates in three landscape units located in a hydrocarbon basin, and (ii) to model their behavior between 2001 and 2013 using landscape metrics at different scales of resolution. The following metrics were selected using principal component analysis (PCA): The Clumpiness Index (CLUMPY), patch density (PD), perimeter-area fractal dimension (PAFRAC) and effective mesh size (MESH). Results from our investigations pointed out that hydrocarbon activity increased the fragmentation at the sites. In particular, the CLUMPY index increased in all three landscape units, the average of PD decreased from 60 to 14 patches per 100 hectares, whereas the mean of MESH was quite constant, however, due to oil production, it decreased mainly in the coastal valleys. Finally, the PAFRAC also decreased at sites with oil production, being more evident in the plateau and coastal canyons. As a whole, outputs from our analyses clearly pointed out that the monitoring of landscape fragmentation trends in arid and semi-arid zones can be successfully achieved using metrics derived from satellite spectral information.

【 授权许可】

Unknown