National assessment of forest fragmentation in India: Landscape indices as measures of the effects of fragmentation and forest cover change

Reddy, C. Sudhakar; Sreelekshmi, S.; Jha, Chandra Shekhar; Dadhwal, V. K.

doi:10.1016/j.ecoleng.2013.09.064

Cited by 118 publications

(57 citation statements)

References 30 publications

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“…We found weak evidence to support this hypothesis. However, our findings provide additional support for Li et al's [37] and Reddy et al's [63] argument that accelerated urbanisation in developing countries expedites forest conversion. Spatio-temporal trend analysis from 1976 to 2011 shows that the WA has a very dynamic landscape, with a decline in forest cover and an increase in built-up, bare land, and UPA land covers.…”

Section: Discussioncontrasting

confidence: 36%

Impacts on the Urban Environment: Land Cover Change Trajectories and Landscape Fragmentation in Post-War Western Area, Sierra Leone

2018

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An influential underlying driver of human-induced landscape change is civil war and other forms of conflict that cause human displacement. Internally displaced persons (IDPs) increase environmental pressures at their destination locations while reducing them at their origins. This increased pressure presents an environment for increased land cover change (LCC) rates and landscape fragmentation. To test whether this hypothesis is correct, this research sought to understand LCC dynamics in the Western Area of Sierra Leone from 1976 to 2011, a period including pre-conflict, conflict, and post-conflict eras, using Landsat and SPOT satellite imagery. A trajectory analysis of classified images compared LCC trajectories before and during the war with after the war (2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011). Over the 35-year period, the built-up land class rapidly increased, in parallel with an increase in urban and peri-urban agriculture. During the war, urban and peri-urban agriculture became a major livelihood activity for displaced rural residents to make the region food self-sufficient, especially when the war destabilised food production activities. The reluctance of IDPs to return to their rural homes after the war caused an increased demand for land driven by housing needs. Meanwhile, protected forest and other forest declined. A significant finding to emerge from this research is that landscape fragmentation increased in conjunction with declining forest cover while built-up areas aggregated. This has important implications for the region's flora, fauna, and human populations given that other research has shown that landscape fragmentation affects the landscape's ability to provide important ecosystem services.

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Section: Discussioncontrasting

confidence: 36%

Impacts on the Urban Environment: Land Cover Change Trajectories and Landscape Fragmentation in Post-War Western Area, Sierra Leone

2018

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“…Deforestation can increase forest fragmentation (Reddy et al 2013;Newman 2014). Fragmentation of the landscape may have severe consequences for forest biota, including loss of suitable habitat for sensitive species (Mendoza et al 2005), increasing competition from generalist species (Laurance et al 2009) and genetic isolation of sub population (Goosem 2007), all of which may ultimately result in local extinction of native forest dependent species (Laurance et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Analysis of Tropical Forest Landscape Fragmentation in Batang Toru Watershed, North Sumatra

Samsuri

Jaya

Kusmana

et al. 2014

jtfm

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“…While one generic measure of sustainability has become tracking tons of emitted carbon dioxide (especially among businesses), for land managers in extractive industries monitoring landscape change is an important measure directly tied to field operations. As Reddy et al [8] observe, "Assessment of landscape configuration and composition can be used for monitoring ecological processes which helps in management of landscapes. "…”

Section: Geospatial Studies Of Extractive Landscapesmentioning

confidence: 99%

“…For this study we calculated the size of core areas, as an important sustainability measure. Other researchers, however, have focused on core patch size, pattern and density as specific habitat fragmentation measures [8] [62]- [65]. Table 2 shows the values for the selected disturbance metrics.…”

Section: Land-usementioning

confidence: 99%

A Geospatial Approach to Measuring Surface Disturbance Related to Oil and Gas Activities in West Florida, USA

Baynard¹,

Schupp²,

Zhang³

et al. 2014

ARS

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Oil and gas exploration and production activities (OGEPA) can produce surface disturbances created by the construction of roads, well pads, oil wells, pipelines, production facilities and storage pits. These alterations can range from landscape conversion to transformation depending on location, regulations and enforcement, environmental best practices and state vs. multinational management. Though not known as a major oil and gas state, Florida is ranked 23rd in gas and 24th in oil production nationally. Jay oilfield, located in West Florida's panhandle region, is the largest and top producer in the state. Though production peaked in 1979, a nationwide upsurge is taking place that could affect Florida. The accounting from above approach proposed here is well suited to understand the role that the infrastructure surface footprint has on West Florida's landscape and how to monitor potential changes underway. It involves remote sensing, GIS techniques and landscape ecology metrics to quantify surface disturbance in Santa Rosa County's six oilfields and then ranks each field based on environmental performance (sustainability). Findings suggest that agricultural conversion is the leading driver of land-use and land-cover (LULC) change, while OGEPA have created small-scale surface alterations. This paper's approach can help oil companies, land managers and local government authorities understand the spatial extent of OGEPA onshore alterations and plan future scenarios, particularly as drilling and production increase in the current shale revolution occurring throughout the US, as well as expanded drilling planned for Florida.

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National assessment of forest fragmentation in India: Landscape indices as measures of the effects of fragmentation and forest cover change

Cited by 118 publications

References 30 publications

Impacts on the Urban Environment: Land Cover Change Trajectories and Landscape Fragmentation in Post-War Western Area, Sierra Leone

Impacts on the Urban Environment: Land Cover Change Trajectories and Landscape Fragmentation in Post-War Western Area, Sierra Leone

Analysis of Tropical Forest Landscape Fragmentation in Batang Toru Watershed, North Sumatra

A Geospatial Approach to Measuring Surface Disturbance Related to Oil and Gas Activities in West Florida, USA

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