Assessment of forest fragmentation in the conservation priority Dudhwa landscape, India using FRAGSTATS computed class level metrics

Midha, Neha; Mathur, Pankaj

doi:10.1007/s12524-010-0034-6

Cited by 126 publications

(44 citation statements)

References 20 publications

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“…Outra maneira de compreender as mudanças da paisagem é através da quantificação de sua estrutura, que pode ser realizada a partir de mapas categóricos, comumente denominados métricas da paisagem (Pang et al, 2010;Zaragozí et al, 2012). Nas métricas da paisagem, largamente utilizadas por ecologistas, são aplicados índices para descrever o nível de uniformidade ou fragmentação espacial de uma paisagem (McGarigal et al, 1995).…”

Section: Revista Brasileira De Engenharia Agrícola E Ambientalunclassified

“…O cálculo desses índices pode ser realizado a partir de métricas de área, forma, borda, área do núcleo, proximidade, isolamento, contraste, contágio e diversidade, entre outros (McGarigal et al, 1995). Vários trabalhos também já foram realizados aplicando essas métricas para diversas finalidades (Raines, 2002;Southworth et al, 2004;Liu et al, 2009;Midha & Mathur, 2010;Pang et al, 2010;Pham et al, 2011). Pham et al (2011) aplicaram técnicas de sensoriamento remoto e métricas da paisagem para monitorar a urbanização entre os anos de 1975 e 2003, em quatro cidades do Vietnã, Japão, Estados Unidos e China.…”

Section: Revista Brasileira De Engenharia Agrícola E Ambientalunclassified

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Dinâmica do uso e ocupação do solo em uma bacia hidrográfica do semiárido brasileiro

Coelho¹,

Montenegro²,

Almeida

et al. 2014

Rev. bras. eng. agríc. ambient.

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R E S U M OAs mudanças no uso e na ocupação do solo, provocadas pelas ações antrópicas, têm gerado grandes impactos nas paisagens. Esses impactos podem ser mitigados através do monitoramento do uso e da cobertura do solo utilizando-se informações espaço-temporais das modificações ocorridas na paisagem. Este trabalho apresenta uma análise espaço-temporal detalhada da dinâmica do uso e ocupação do solo da bacia hidrográfica do riacho São Paulo, localizada na região semiárida do Estado de Pernambuco, entre os anos de 1991 e 2010. Partindo da classificação de três imagens de satélite dos anos de 1991, 2000 e 2010, foram utilizadas matrizes de transição, associadas à álgebra de mapas e métricas da paisagem. Os resultados mostraram que durante o período estudado as classes de uso e ocupação do solo passaram por uma grande transição, com a substituição progressiva das áreas de vegetação de caatinga aberta por áreas com pastagem/agricultura. Junto com o rápido crescimento da classe pastagem/agricultura, a paisagem predominante de vegetação nativa foi sendo substituída por uma paisagem cada vez mais devastada, heterogênea e fragmentada, como mostraram os índices das métricas da paisagem.Dynamic of land use/cover change processes in a Brazilian semiarid watershed A B S T R A C TThe changes in the use and occupation of land, caused by human actions, have created major impacts on the landscapes. These impacts can be mitigated by monitoring the use and land cover, using spatial and temporal information of the changes occurring in the landscape. This paper presents a detailed analysis of spatial and temporal dynamics of land use and occupation of the stream São Paulo watershed, located in the semiarid region of Pernambuco State, during the period from 1991 to 2010. Based on the classification of three satellite images for the years 1991, 2000 and 2010, transition matrices were used associated with the algebra of maps, and landscape metrics. The results showed that during the studied period, the classes of land use and occupation went through a major transition, with the gradual replacement of sparse area of 'caatinga' vegetation by grazing areas/agriculture. Along with the rapid growth of the grazing areas/agriculture class, the predominant landscape of native vegetation has been replaced by a landscape increasingly devastated, fragmented and heterogeneous, as shown by the index of landscape metrics.

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Section: Revista Brasileira De Engenharia Agrícola E Ambientalunclassified

Dinâmica do uso e ocupação do solo em uma bacia hidrográfica do semiárido brasileiro

Coelho¹,

Montenegro²,

Almeida

et al. 2014

Rev. bras. eng. agríc. ambient.

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“…This class displayed a decreasing trend (42.2 to 41.8) from 1984 to 2030. Values of ENN in forest decreased between 2010 and 2030, indicating that forest patches became more isolated, affecting the movement and dispersal of species (Midha and Mathur, 2010). A decreasing trend in ENN for the agriculture area (88.8 to 80.8) and residential (109.4 to 80.9) was apparent from 1984 to 2030.…”

Section: Analysis Of Landscape Metrics and Spatial Processes Of Landsmentioning

confidence: 96%

Land cover change modelling in Hyrcanian forests, Northern Iran: a landscape pattern and transformation analysis perspective

Shooshtari

Shayesteh

Gholamalifard

et al. 2018

CIG

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The main objective of this study is to analyze the spatio-temporal changes in land cover and land use, (1984–2010), as well to simulate future land cover for 2030 in the Neka River Basin, including the Hyrcanian forest, in northern Iran. For this purpose, we used detailed land cover maps for the years 1984, 2001 and 2010. The results showed that the highest deforestation occurred in the boundaries between forest and agriculture areas between 1984 and 2010. Comparing the observed and predicted land cover in 2010 yielded agreement of 96.41%. From 1984 to 2010, landscape metrics showed that the forest area evolved to more fragmentation, with less shape complexity and less connectivity. Projections for the future are consistent with observed changes for the Neka landscape, with a tendency to continue disaggregating and increasing diversity in a number of different patch types. Between 2010 and 2030, we observed the arrival of new crops, rangelands, and urban areas within the remaining areas of homogeneous forest. Changes in the Hyrcanian forest will cause alteration in ecosystem services, such as erosion control, water yield, timber harvest, and ground water reservation. Results of this work may represent a useful tool to provide strategies and territorial planning for sustainable management of the fragile Hyrcanian forest ecosystems in the Neka Basin.

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“…Landscape fragmentation is a dynamic process and has a large impact on biodiversity as a result of changes of habitats in a landscape through time [12,13]. Landscape fragmentation has several causes such as anthropogenic activities, urban development, natural causes, agricultures, illegal logging, and forest cutting.…”

Section: Introductionmentioning

confidence: 99%

Post-War Land Cover Changes and Fragmentation in Halgurd Sakran National Park (HSNP), Kurdistan Region of Iraq

Hamad

Kolo

Balzter

2018

Land

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Context:The fundamental driving force of land use and land cover (LULC) change is related to spatial and temporal processes caused by human activities such as agricultural expansion and demographic change. Landscape metrics were used to analyze post-war changes in a rural mountain landscape, the protected area of Halgurd-Sakran National Park (HSNP) in north-east Iraq. Therefore, the present work attempts to identify the temporal trends of the most fragmented land cover types between two parts of the national park. Objectives: The objectives of this study are to compare two land cover classification algorithms, maximum likelihood classification (MLC) and random forest (RF) in the upper and lower parts of HSCZ, and to examine whether landscape configuration in the park has changed over time by comparing the fragmentation, connectivity and diversity of LULC classes. Methods: Two Landsat images were used to analyze LULC fragmentation and loss of habitat connectivity (before and after the Fall of Baghdad in 2003). Seven landscape pattern metrics, percentage of land (PLAND), number of patch (NP), largest patch index (LPI), mean patch size (MPS), euclidian nearest neighborhood distance (ENN_AM), interspersion and juxtaposition (IJI) and cohesion at class level were selected to assess landscape composition and configuration. Results: A significant change in LULC classes was noticed in the lower part of the park, especially for pasture, cultivated and forest-lands. The fragmentation trends and their changes were observed in both parts of the park, however, more were observed in the lower part. The inherent causes of these changes are the socio-economic factors created by the 1991-2003 UN post-war economic sanctions. The changes increased during sanctions and decreased afterwards. The fall of Baghdad in 2003, followed by rapid economic boom, marked the greatest cause in land use change, especially in changes-susceptible cultivated areas. Conclusions: Shrinkage of forest patches in the lower part of the park increases the distance between them, which contributes to a decline in biological diversity from decreasing habitat area. Lastly, the results confirm the applicability of the combined method of remote sensing and landscape metrics.

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Assessment of forest fragmentation in the conservation priority Dudhwa landscape, India using FRAGSTATS computed class level metrics

Cited by 126 publications

References 20 publications

Dinâmica do uso e ocupação do solo em uma bacia hidrográfica do semiárido brasileiro

Dinâmica do uso e ocupação do solo em uma bacia hidrográfica do semiárido brasileiro

Land cover change modelling in Hyrcanian forests, Northern Iran: a landscape pattern and transformation analysis perspective

Post-War Land Cover Changes and Fragmentation in Halgurd Sakran National Park (HSNP), Kurdistan Region of Iraq

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