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Malunga MM, Cho MA, Chirwa PW, Yerokun OA. Land use induced land cover changes and future scenarios in extent of Miombo woodland and Dambo ecosystems in the Copperbelt province of Zambia. Afr J Ecol 2021. [DOI: 10.1111/aje.12921] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mwelwa Mwape Malunga
- School of Agriculture and Natural Resources Mulungushi University Kabwe Zambia
- Postgraduate Forest Programme Department of Plant and Soil Sciences University of Pretoria Pretoria South Africa
| | - Moses Azong Cho
- Postgraduate Forest Programme Department of Plant and Soil Sciences University of Pretoria Pretoria South Africa
- Natural Resources and Environment Unit The Council for Scientific and Industrial Research (CSIR) Pretoria South Africa
| | - Paxie Wanangwa Chirwa
- Postgraduate Forest Programme Department of Plant and Soil Sciences University of Pretoria Pretoria South Africa
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Monitoring Effects of Land Cover Change on Biophysical Drivers in Rangelands Using Albedo. LAND 2019. [DOI: 10.3390/land8020033] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This paper explores the relationship between land cover change and albedo, recognized as a regulating ecosystems service. Trends and relationships between land cover change and surface albedo were quantified to characterise catchment water and carbon fluxes, through respectively evapotranspiration (ET) and net primary production (NPP). Moderate resolution imaging spectroradiometer (MODIS) and Landsat satellite data were used to describe trends at catchment and land cover change trajectory level. Peak season albedo was computed to reduce seasonal effects. Different trends were found depending on catchment land management practices, and satellite data used. Although not statistically significant, albedo, NPP, ET and normalised difference vegetation index (NDVI) were all correlated with rainfall. In both catchments, NPP, ET and NDVI showed a weak negative trend, while albedo showed a weak positive trend. Modelled land cover change was used to calculate future carbon storage and water use, with a decrease in catchment carbon storage and water use computed. Grassland, a dominant dormant land cover class, was targeted for land cover change by woody encroachment and afforestation, causing a decrease in albedo, while urbanisation and cultivation caused an increase in albedo. Land cover map error of fragmented transition classes and the mixed pixel effect, affected results, suggesting use of higher-resolution imagery for NPP and ET and albedo as a proxy for land cover.
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Mapping Mangroves Extents on the Red Sea Coastline in Egypt using Polarimetric SAR and High Resolution Optical Remote Sensing Data. SUSTAINABILITY 2018. [DOI: 10.3390/su10030646] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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