Identification and characterization of spatio-temporal hotspots of forest fires in South Asia

Reddy, C. Sudhakar; Bird, Natalia Grace; Sreelakshmi, S.; Manikandan, T. Maya; Asra, Mahbooba; Krishna, P. Hari; Jha, Chandra Shekhar; Rao, Preeti; Diwakar, P. G.

doi:10.1007/s10661-019-7695-6

Cited by 59 publications

(30 citation statements)

References 20 publications

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“…Uttarkhand is the youngest mountain region of the Himalayas, mainly experiencing annual forest res, which have worsened during our study period, especially in the year 2016 68 . In a study, the highest concentration of emerging intensi ed re hotspots is found in the northeast and central India, which is substantiated by our results 69 . Shrubland res are frequently observed in the regions of Telangana, Himachal, Jammu& Kashmir, Bihar, and Tamil Nadu.…”

Section: A Regional Analysis Of Emissions a Geospatial Analysissupporting

confidence: 87%

An Inventory on Black Carbon and Organic Carbon Emission by the Different Vegetative Ecosystem Over India

Venkatraman¹,

Bhaskar²,

Kesarkar³

2020

Preprint

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Fires provoke land degradation, deforestation, imbalance in the ecosystem, and promote changes in land use. To add more vein aerosols such as Black Carbon (BC) and Organic Carbon (OC) were emitted during the combustion event which plays a major role in climate change, pollution, and health. Hence this study aims to estimate the emission, residence, dry deposition flux, and sequestering ability of deposited BC and OC from different vegetative fires across India using MODIS satellite data from 2013 to 2019. It was observed that the mean OC and BC emission were about 5.08 × 107 tonnes 4.48 × 106 tonnes during the fire season across India. On a national scale, cropland fires contributed the largest portion (80%) of total carbonaceous aerosol emissions from open fires. In co-emission of species, forest shares a maximum relationship (> 92 percent) among carbonaceous aerosols. Estimation of deposition flux of emitted species showed cropland has higher deposition rates with a residence period ranging between 7hours to 23days. From the observed results, it is evident that higher aerosol emission combined with negligible deposition will be a potential threat to the environment. Waste utilization promoting strategies has to be adopted in India since agriculture contributes to major aerosols emission.

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Section: A Regional Analysis Of Emissions a Geospatial Analysissupporting

confidence: 87%

An Inventory on Black Carbon and Organic Carbon Emission by the Different Vegetative Ecosystem Over India

Venkatraman¹,

Bhaskar²,

Kesarkar³

2020

Preprint

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“…Not only natural wildfires but also intentional burning to remove weeds for agriculture may trigger extensive fires. In Southeast Asia, 50% of forests were affected by fire from 2003 to 2017 (Reddy et al 2019). The area of forest fires increased 36-fold in the Amazon region from 1984 to 2016 (da Silva et al 2018).…”

Section: Wildfire and Intentional Burningmentioning

confidence: 99%

The impact of tropical land-use change on downstream riverine and estuarine water properties and biogeochemical cycles: a review

2021

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Tropical primary forests have been disappearing quickly to make use of the land for commercial purposes. Land-use change has an impact on downstream aquatic processes, but those impacts have mainly been studied in temperate climate regions. The present article reviews the impacts of various tropical land-use changes caused by human activities on downstream riverine and estuarine water properties and biogeochemical cycles, focusing especially on the behaviors of nitrogen (N) and phosphorus (P). Logging of tropical primary forests, subsequent establishment of pasture lands, and occasional wildfire or intentional burning have decreased terrestrial N fixation and increased the discharge of P combined with soils, which has lowered the N:P ratio of dissolved inorganic nutrients in the adjacent stream waters and downstream rivers. Agricultural fertilizers and aquacultural practices basically cause nutrient enrichment in downstream riverine and estuarine waters, changing the N:P ratio depending on the source. Finally, urbanization causes eutrophication in many tropical estuaries, where a halocline forms easily because of a warm temperature throughout the year and the water at the bottom of the estuary tends to become hypoxic or anoxic. Overall, the impact of land-use change on aquatic processes may be more serious in tropical regions than in temperate or cold climate regions because of (1) a higher biomass and nutrient stock in original tropical forests; (2) higher precipitation, more frequent episodic flooding, and warmer temperatures in tropical regions; and (3) certain practices that are rapidly expanding in tropical regions such as land-based aquaculture. Various land-use changes are causing downstream nutrient enrichment or disturbance of the nutrient balance at tropical land-sea interfaces, and the overall N:P ratios in the aquatic ecosystem seem to be declining. Nonetheless, if proper management is conducted and the discharge of nutrients and soils ceases, tropical aquatic systems may have the potential to recover faster than those in other climate regions because of their abundant precipitation and warm temperature. Long-term monitoring and more attention to elemental stoichiometry are important areas for future research.

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“…GIS analysis is advantageous in classifying burned areas spatially. Spatial analysis can determine fire density and repeatedly burned areas [44]. e spatial analysis helps determine priority areas in handling forest and land fires [45].…”

Section: Burned Area Density In South Kalimantanmentioning

confidence: 99%

Spatiotemporal Patterns of Burned Areas Based on the Geographic Information System for Fire Risk Monitoring

Arisanty

Muhaimin

Rosadi

et al. 2021

International Journal of Forestry Research

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Forest and land fires occur every year in Indonesia. Efforts to handle forest and land fires have not been optimal because fires occur in too many places with unclear patterns and densities. The study analyzed the spatiotemporal patterns of burned areas and fire density in fire-prone areas in Indonesia. Data of burned areas were taken from http://sipongi.menlhk.go.id/. The website collected its data from NOAA (National Oceanic and Atmospheric Administration) images. Data were analyzed using the hot spot analysis to determine the spatiotemporal patterns of the burned areas and the kernel density analysis to examine the density of land fires. Findings showed that the spatiotemporal pattern from 2016 to 2019 formed a hot spot value in the peatland area with a confidence level of 90–99%, meaning that land fires were clustered in that area. In addition, the highest density of land fires also occurred in the peatland areas. Clustered burned areas with high fire density were found in areas with low–medium vegetation density—they were the peatland areas. The peatland areas must become the priority to prevent and handle forest and land fires to reduce fire risks.

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Identification and characterization of spatio-temporal hotspots of forest fires in South Asia

Cited by 59 publications

References 20 publications

An Inventory on Black Carbon and Organic Carbon Emission by the Different Vegetative Ecosystem Over India

An Inventory on Black Carbon and Organic Carbon Emission by the Different Vegetative Ecosystem Over India

The impact of tropical land-use change on downstream riverine and estuarine water properties and biogeochemical cycles: a review

Spatiotemporal Patterns of Burned Areas Based on the Geographic Information System for Fire Risk Monitoring

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