TY - JOUR
T1 - Coastal land-use and land-cover change trajectories
T2 - Are they sustainable?
AU - de Deus, Raquel Faria
AU - Tenedório, José António
N1 - info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04647%2F2020/PT#
info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04647%2F2020/PT#
info:eu-repo/grantAgreement/FCT/DL 57%2F2016/DL 57%2F2016%2FCP1453%2FCT0105/PT#
UIDB/04647/2020
UIDP/04647/2020
DL 57/2016/CP1453/CT0105
PY - 2021/8/2
Y1 - 2021/8/2
N2 - In this study, past and current land-use and land-cover (LULC) change trajectories between 1947 and 2018 were analysed in terms of sustainability using a unique set of nine detailed, high-precision LULC thematic maps for the municipality of Portimão (Algarve region), Portugal. Several Geographic Information System (GIS)-based spatial analysis techniques were used to process LULC data and assess the spatiotemporal dynamics of LULC change processes. The dynamics of LULC change were explored by analysing LULC change trajectories. In addition, spatial pattern metrics were introduced to further investigate and quantify the spatial patterns of such LULC change trajectories. The findings show that Portimão has been experiencing complex LULC changes. Nearly 52% of the study area has undergone an LULC change at least once during the 71-year period. The analysis of spatial pattern metrics on LULC change trajectories confirmed the emergence of more complex, dispersed, and fragmented shapes when patches of land were converted from non-built categories into artificial surface categories from 1947 to 2018. The combined analysis of long-term LULC sequences by means of LULC change trajectories and spatial pattern metrics provided useful, actionable, and robust empirical information that can support sustainable spatial planning and smart growth, which is much needed since the results of this study have shown that the pattern of LULC change trajectories in Portimão municipality has been heading towards unsustainability.
AB - In this study, past and current land-use and land-cover (LULC) change trajectories between 1947 and 2018 were analysed in terms of sustainability using a unique set of nine detailed, high-precision LULC thematic maps for the municipality of Portimão (Algarve region), Portugal. Several Geographic Information System (GIS)-based spatial analysis techniques were used to process LULC data and assess the spatiotemporal dynamics of LULC change processes. The dynamics of LULC change were explored by analysing LULC change trajectories. In addition, spatial pattern metrics were introduced to further investigate and quantify the spatial patterns of such LULC change trajectories. The findings show that Portimão has been experiencing complex LULC changes. Nearly 52% of the study area has undergone an LULC change at least once during the 71-year period. The analysis of spatial pattern metrics on LULC change trajectories confirmed the emergence of more complex, dispersed, and fragmented shapes when patches of land were converted from non-built categories into artificial surface categories from 1947 to 2018. The combined analysis of long-term LULC sequences by means of LULC change trajectories and spatial pattern metrics provided useful, actionable, and robust empirical information that can support sustainable spatial planning and smart growth, which is much needed since the results of this study have shown that the pattern of LULC change trajectories in Portimão municipality has been heading towards unsustainability.
KW - Dynamic systems
KW - Long-term change
KW - LULC change typology processes
KW - Planning
KW - Spatial pattern metrics
KW - Urban sustainability
UR - http://www.scopus.com/inward/record.url?scp=85112286335&partnerID=8YFLogxK
UR - https://www.webofscience.com/wos/woscc/full-record/WOS:000690048800001
U2 - 10.3390/su13168840
DO - 10.3390/su13168840
M3 - Article
AN - SCOPUS:85112286335
SN - 2071-1050
VL - 13
SP - 1
EP - 24
JO - Sustainability
JF - Sustainability
IS - 16
M1 - 8840
ER -