Detecting important categorical land changes while accounting for persistence

Pontius, Robert G.; Shusas, Emily; McEachern, Menzie

doi:10.1016/j.agee.2003.09.008

Cited by 685 publications

(659 citation statements)

References 17 publications

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“…The net change measures the definite change between two periods of time (Pontius et al, 2004). It was determined by calculating the difference between the Total column and the Total row.…”

Section: Lulc Characterizationmentioning

confidence: 99%

“…Measuring LULC and its rates and patterns of change requires a spatial-temporal assessment of LULC data, which is most commonly provided through the analysis of transitional matrices (Lu et al, 2004). The traditional analysis of transitional matrices provides information on the most prominent landscape changes, but is insufficient for distinguishing between random and systematic transitions (Pontius et al, 2004). Random transitions are influenced by coincidental or unique processes of change, whereas systematic transitions are those that tend to evolve in a consistent and/or progressive manner due to population growth, industrial or commercial expansion, or changes in land management policies (Braimoh, 2006;Lambin et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

“…Random transitions are influenced by coincidental or unique processes of change, whereas systematic transitions are those that tend to evolve in a consistent and/or progressive manner due to population growth, industrial or commercial expansion, or changes in land management policies (Braimoh, 2006;Lambin et al, 2003). The identification of systematic transitions makes it possible to focus on the strongest signals of landscape change and ultimately to link pattern to process (Manandhar et al, 2010;Pontius et al, 2004). Pontius et al (2004) proposed a methodology to assess inter-category transitions based on systematic transitions while accounting for land persistence.…”

Section: Introductionmentioning

confidence: 99%

“…The identification of systematic transitions makes it possible to focus on the strongest signals of landscape change and ultimately to link pattern to process (Manandhar et al, 2010;Pontius et al, 2004). Pontius et al (2004) proposed a methodology to assess inter-category transitions based on systematic transitions while accounting for land persistence. Among other applications, such methodology has been applied to explore the impacts of land use on regional water balance and revegetation strategies (Versace et al, 2008); to assess landscape dynamism to be considered in models of LULC change (Lira et al, 2012); to link patterns to processes of LULC changes based on levels of intensity analysis (Huang et al, 2012); and to detect the dynamic linkage between landscape characteristics and water quality evaluating the statistical relationship between landscape metrics and physical-chemical parameters (Huang et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

“…From these results, the role of each LULC class as a driving force of environmental change with impact on the state of water bodies is discussed. Our study then follows the methodology proposed by Pontius et al (2004) and further extended by Braimoh (2006) as a mean to detect systematic transitions and dominant signals of landscape change, providing the basis for the identification of dominant driving forces from processes of LULC change.…”

Section: Introductionmentioning

confidence: 99%

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Systematic processes of land use/land cover change to identify relevant driving forces: Implications on water quality

Teixeira

Marques

2014

Science of The Total Environment

120

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• LULC and LULC changes are important drivers of water condition.• We identified strong signals of systematic transitions.• Consistency and magnitude of systematic transitions reveal processes of LULC change.• Processes of LULC change reveal important drivers of water condition.• Relevant drivers reveal potential pressures linked to the process of transition. Land use and land cover (LULC) are driving forces that potentially exert pressures on water bodies, which are most commonly quantified by simply obtained aggregated data. However, this is insufficient to detect the drivers that arise from the landscape change itself. To achieve this objective one must distinguish between random and systematic transitions and identify the transitions that show strong signals of change, since these will make it possible to identify the transitions that have evolved due to population growth, industrial expansion and/or changes in land management policies. Our goal is to describe a method to characterize driving forces both from LULC and dominant LULC changes, recognizing that the presence of certain LULC classes as well as the processes of transition to other uses are both sources of stress with potential effects on the condition of water bodies. This paper first quantifies the driving forces from LULC and also from processes of LULC change for three nested regions within the Mondego river basin in 1990, 2000 and 2006. It then discusses the implications for the environmental water body condition and management policies. The fingerprint left on the landscape by some of the dominant changes found, such as urbanization and industrial expansion, is, as expected, low due to their proportion in the geographic regions under study, yet their magnitude of change and consistency reveal strong signals of change regarding the pressures acting in the system. Assessing dominant LULC changes is vital for a comprehensive study of driving forces with potential impacts on water condition.

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“…The net change measures the definite change between two periods of time (Pontius et al, 2004). It was determined by calculating the difference between the Total column and the Total row.…”

Section: Lulc Characterizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Systematic processes of land use/land cover change to identify relevant driving forces: Implications on water quality

Teixeira

Marques

2014

Science of The Total Environment

120

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Forest–grassland biodiversity hotspot under siege: land conversion counteracts nature conservation

Hermann

Lang

Gonçalves

et al. 2016

Ecosyst Health Sustain

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We report extent and rate of land use/land cover change in a forest–grassland mosaic of Rio Grande do Sul, Brazil, during a recent period of increasing conflicts between native habitat protection and conversion. The area is part of the Atlantic rain forest biome, a Global Biodiversity Hotspot. Analyzing Landsat and Google Earth imagery, and calculating an effective conservation risk index (ECRI) as ratio of converted to remnant area, we specifically compared the effectiveness of designated fully protected areas (FP‐PAs) and Sustainable Use areas (SU‐PAs) in preventing conversion of native forest and grassland habitats for agri‐ and silviculture, relative to areas outside. Grassland area decreased by 17%, corresponding to a net loss of 59,671 ha, in the entire area. Forest gains exceeded losses, and ECRI was zero inside Full Protection PAs. Non‐native tree plantation area increased by 94% over the entire study area; cropland increased by 7%. Conversion for silviculture predominated outside the designated PAs and conversion for agriculture predominated inside the designated PAs. ECRI was generally higher for grassland than forest, and in SU‐PAs, grassland ECRI was several times higher than in areas without any protection status. These developments are in stark contrast to the high standards of the Brazilian protected area system and corresponding International Union for Conservation of Nature and Natural Resources categories. They are due to protracted regularization of land conversion and establishment of designated protection areas. Furthermore, they reveal the dilemma of previously managed grasslands in strictly protected areas being eventually succeeded by forest, and the hazards of broad interpretation of the term “sustainable development”.

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Analysis of the dynamics of the land use changes in the Mediterranean region of southern Spain and its relationship with water availability

Sillero‐Medina,

Galacho‐Jimenez,

Molina

et al. 2024

Geography and Environment

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In the recent decades, the increase in irrigated agricultural areas has been a constant trend in the Mediterranean region, being concurrent with a reduction in the availability of water resources, due not only to an increase in demand but also to a reduction in supply as a result of the climate crisis. This study has analysed the evolution in land use changes between 1991 and 2021 in the Mediterranean region of southern Spain; the increase in the areas occupied by irrigated crops has been quantified; the climatic and edaphic dynamics linked to water risks have been identified, analysing the evolution of the annual precipitation, the number of rainy days and the distance to the wilting point of the soil; and, finally, it has been determined which factors are the most explanatory in this dynamic of land use. Using several machine learning methods, we could state how the current dynamics of land use are not in accordance with the availability and evolution of water resources, and how the areas where irrigated crops have increased the most are those where the climatic pattern shows a greater decrease in water resources, indicating how decisions on land uses are not done considering climatological conditions, but economic benefits.

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Detecting important categorical land changes while accounting for persistence

Cited by 685 publications

References 17 publications

Systematic processes of land use/land cover change to identify relevant driving forces: Implications on water quality

Systematic processes of land use/land cover change to identify relevant driving forces: Implications on water quality

Forest–grassland biodiversity hotspot under siege: land conversion counteracts nature conservation

Analysis of the dynamics of the land use changes in the Mediterranean region of southern Spain and its relationship with water availability

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