Modelling future land use scenarios based on farmers' intentions and a cellular automata approach

被引:34
|
作者
Gomes, Eduardo [1 ,2 ]
Abrantes, Patricia [2 ]
Banos, Arnaud [3 ]
Rocha, Jorge [2 ]
机构
[1] Univ Paris 1 Pantheon Sorbonne, Geog Cites, UMR 8504, Paris, France
[2] UL, IGOT, CEG, Lisbon, Portugal
[3] CNRS LabEx DynamiTe, UMR 6266, IDEES, Paris, France
关键词
Land use and cover change; Farmers' LUCC intentions; Markov chain; Cellular automata; Scenarios; Land use strategies; COVER CHANGE; URBAN-GROWTH; FRAGMENTATION; IMPACTS; URBANIZATION; AGRICULTURE; CALIBRATION; AGREEMENT; BEHAVIOR; CONTEXT;
D O I
10.1016/j.landusepol.2019.03.027
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Different mechanisms drive land use and land cover changes (LUCC). This paper presents an exploratory analysis aimed at understanding the complex dynamics of LUCC based on farmers' intentions when they are faced with four scenarios with the time horizon of 2025: (1) AO - current social and economic trend; (2) Al - intensified agricultural production; (3) A2 - reduced agricultural production; and (4) BO - increasing demand for urban development. LUCC models are applied to a Torres Vedras (Portugal) case study. This territory is located in a peri-urban area near Lisbon dominated by forest and agricultural land, which has been suffering considerable urban pressure in the last decades. Farmers major agents of agricultural land use change were interviewed to obtain their LUCC intentions according to the scenarios studied. To model LUCC a Cellular automata-Markov chain approach was applied. Our results suggest that significant LUCC will occur depending on their intentions in the different scenarios. The highlights are: (1) the highest growth in permanently irrigated land in the Al scenario; (2) the biggest drop in non-irrigated arable land, and the highest growth in forest in the A2 scenario; and (3) the greatest urban growth was recognized in the BO scenario. To verify if the fitting simulations performed well, techniques to measure agreement and quantity -allocation disagreements were applied.These outcomes could provide decision-makers with the capacity to observe different possible futures in 'what if' scenarios, allowing them to anticipate future uncertainties, and consequently allowing them the possibility to choose the more desirable future.
引用
收藏
页码:142 / 154
页数:13
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