Agricultural landscape change and stability in northeast Thailand: historical patch-level analysis

Crews‐Meyer, Kelley A.

doi:10.1016/j.agee.2003.09.024

Cited by 62 publications

(27 citation statements)

References 21 publications

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“…Also, integrating landscape analysis with the statistical analyses, as emphasized in the work of several others (Cifaldi et al 2004, Crews-Meyer 2004, Song et al 2005, DiBari 2007, Lin et al 2007, Weng 2007, Sundell-Turner and Rodewald 2008, Wang et al 2009, Ouyang et al 2010, facilitated the depth of interpretation with regard to the complex hydrological conditions of developed basins.…”

Section: Resultsmentioning

confidence: 99%

Trend analysis of water discharge and sediment load during the past three decades of development in the Langat basin, Malaysia

Memarian

Balasundram

Talib

et al. 2012

Hydrological Sciences Journal

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(2012) Trend analysis of water discharge and sediment load during the past three decades of development in the Langat basin, Malaysia, Hydrological Sciences Journal, 57:6, 1207-1222, DOI: 10.1080/02626667.2012 Abstract In this study, the trends of water discharge and sediment load from three hydrometric stations over the past 25 years of development in the state of Selangor, Peninsular Malaysia, were analysed using the MannKendall and Pettitt tests. Landscape metrics for establishing the relationship between land-use changes and trends of hydrological time series were calculated. The hydrological trends were also studied in terms of rainfall variations and manmade features. The results indicate upward trends in water discharge in the Hulu Langat sub-basin and in sediment load in the Semenyih sub-basin. These increasing trends were mainly caused by rapid changes in land use. Upward trends of hydrological series in the Hulu Langat sub-basin matched its rainfall pattern. In the Lui sub-basin, however, trends of hydrological series, and variations in rainfall and land use were not statistically significant.Key words trend analysis; Mann-Kendall test; Pettitt test; landscape metrics; water discharge; sediment load Analyse de tendance du débit et de la charge sédimentaire au cours des trois dernières décennies de développement dans le bassin du Langat en MalaisieRésumé Dans cette étude, on a analysé les tendances du le débit et de la charge sédimentaire au niveau de trois stations hydrométriques au cours des 25 dernières années de développement dans l'Etat de Selangor, en Malaisie péninsulaire, en utilisant les tests de Mann-Kendall et de Pettitt. On a calculé des métriques paysagères pour établir une relation entre les changements d'occupation des sols et les tendances dans les séries hydrologiques. Les tendances hydrologiques ont également été étudiées en termes de variations des précipitations et de caractéristiques artificielles. Les résultats ont indiqué des tendances à la hausse des débits dans le sous-bassin du Hulu Langat et de la charge sédimentaire dans le sous-bassin du Semenyih. Ces tendances à la hausse ont été principalement causées par des changements rapides de l'occupation des sols. Les tendances à la hausse dans les séries hydrologiques sur le sous bassin du Hulu Langat suivent le comportement des pluies. Cependant, dans le sous-bassin du Lui, les tendances des séries hydrologiques, et les variations des précipitations et de l'occupation des sols n'étaient pas statistiquement significatives.

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Section: Resultsmentioning

confidence: 99%

Trend analysis of water discharge and sediment load during the past three decades of development in the Langat basin, Malaysia

Memarian

Balasundram

Talib

et al. 2012

Hydrological Sciences Journal

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“…According to different scales of land use spatial patterns, the micro characteristics at the patch level are usually defined by the boundary complexity (i.e., the geometric complexity of the shape), while the macro spatial distribution mainly refers to specific overall features, such as balance, centrality, and self-organization. The micro characteristics can be measured through the complexity and randomness of single land use patches, which have been thoroughly elaborated by previous studies [33,34]. For characteristics at different levels, however, the macro is considerably more complicated than the micro [35].…”

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confidence: 99%

Examining the Satellite-Detected Urban Land Use Spatial Patterns Using Multidimensional Fractal Dimension Indices

Yu-rong

Shi

et al. 2013

Remote Sensing

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Understanding the spatial patterns of urban land use at both the macro and the micro levels is a central issue in global change studies. Due to the nonlinear features associated with land use spatial patterns, it is currently necessary to provide some distinct analysis methods to analyze them across a range of remote sensing imagery resolutions. The objective of our study is to quantify urban land use patterns from various perspectives using multidimensional fractal methods. Three commonly used fractal dimensions, i.e., the boundary dimension, the radius dimension, and the information entropy dimension, are introduced as the typical indices to examine the complexity, centrality and balance of land use spatial patterns, respectively. Moreover, a new lacunarity dimension for describing the degree of self-organization of urban land use at the macro level is presented. A cloud-free Landsat ETM+ image acquired on 17 September 2010 was used to extract land use information in Wuhan, China. The results show that there are significant linear relationships represented by good statistical fitness related to these four indices. The results indicate that rapid urbanization has substantially affected the urban landscape pattern, and different land use types show different spatial patterns in response. This analysis reveals OPEN ACCESSRemote Sens. 2013, 5 5153 that multiple fractal/nonfractal indices provides a more comprehensive understanding of the spatial heterogeneity of urban land use spatial patterns than any single fractal dimension index. These findings can help us to gain deeper insight into the complex spatial patterns of urban land use.

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“…Although some research progress (Southworth et al, 2002;Crews-Meyer, 2004) has been reported about the patch metric analysis on classified temporal categorical trajectories, the method needs to be improved further (Zhou et al, 2008b). To effectively estimate and describe the dominance and spatial distribution of the forces that caused environmental change, Zhou et al (2008b) have proposed a methodology that uses multi-temporal remotely sensed imageries to derive land cover change trajectory, and subsequently computes landscape metrics of the change trajectory as quantitative descriptive parameters.…”

Section: Introductionmentioning

confidence: 99%

Spatio-temporal pattern analysis of land use/cover change trajectories in Xihe watershed

Wang

Gong

Chen

et al. 2012

International Journal of Applied Earth Observation and Geoinfor

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Agricultural landscape change and stability in northeast Thailand: historical patch-level analysis

Cited by 62 publications

References 21 publications

Trend analysis of water discharge and sediment load during the past three decades of development in the Langat basin, Malaysia

Trend analysis of water discharge and sediment load during the past three decades of development in the Langat basin, Malaysia

Examining the Satellite-Detected Urban Land Use Spatial Patterns Using Multidimensional Fractal Dimension Indices

Spatio-temporal pattern analysis of land use/cover change trajectories in Xihe watershed

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