Quantifying spatial-temporal changes of aboveground carbon stocks using Landsat time series data: A case study of Miombo woodlands

被引：3
作者：
Lembani R. [1 ]
Knight J. [2 ]
Adam E. [2 ]
Kalaba F.K. [1 ,3 ]
机构：
[1] Copperbelt University, Kitwe
[2] School of Geography, Archaeology and Environmental Studies, University of the Witwatersrand, Johannesburg
[3] School of Natural Resources, Copperbelt University, Kitwe
来源：
International Journal of Environmental Studies | 2020年 / 77卷 / 04期
关键词：
Aboveground; biomass; carbon; Landsat; Miombo; stocks;
D O I：
10.1080/00207233.2019.1698870
中图分类号：
学科分类号：
摘要：
There is a need for accurate reporting of the second-growth forest in accounting for the contribution of secondary forests to achieving global carbon sequestration strategies. This study develops a model relating aboveground live biomass (AGLB) to Landsat reflectance measurements, and this method is used on multi spatial-temporal Landsat data (1998, 2001, 2004, 2011 and 2016) to assess changes in Miombo woodlands in Zambia. Results showed that the enhanced vegetation index was a better predictor of AGLB (r2 = 0.96; RMSE = 0.24 t ha−1) than the other assessed vegetation indices. Forest carbon stocks increased by an average rate of 3.65 ± standard error (SE): 0.56 t ha−1 yr−1 from 1998 to 2001, but a continual decline was evident for the periods 2001–2004 (−0.60 t ha−1 yr−1), 2004–2011 (−0.88 t ha−1 yr−1) and 2011–2016 (−2.03 t ha−1 yr−1). The study provides an empirical model for evaluating carbon stock changes. © 2019 Informa UK Limited, trading as Taylor & Francis Group.
引用
收藏
页码：581 / 601
页数：20
相关论文
共 67 条
  • [1] FAO Forestry Paper 163: Global Forest Resources Assessment, (2010)
  • [2] Global forest resources assessment 2015, (2015)
  • [3] Global Forest Resources Assessment 2000, (2001)
  • [4] Chirwa P.W., Syampungani S., Geldenhuys C.J., The ecology and management of the Miombo woodlands for sustainable livelihoods in southern Africa: The case for non-timber forest products, Southern Forests, 70, 3, pp. 237-245, (2008)
  • [5] Chidumayo E.N., Forest degradation and recovery in a miombo woodland landscape in Zambia: 22 years of observations on permanent sample plots, Forest Ecology and Management, 291, pp. 154-161, (2013)
  • [6] Frost P., The ecology of Miombo woodlands, The Miombo in Transition: Woodlands and Welfare in Africa, pp. 11-57, (1996)
  • [7] Chidumayo E.N., Frost P., Population biology of Miombo trees, The Miombo in Transition: Woodlands and Welfare in Africa, pp. 1-223, (1996)
  • [8] Luoga E.J., Witkowski E.T.F., Balkwill K., Regeneration by coppicing (resprouting) of miombo (African savanna) trees in relation to land use, Forest Ecology and Management, 189, pp. 23-35, (2004)
  • [9] Chirwa P.W., Syampungani S., Geldenhuys C.J., Managing Southern African woodlands for biomass production: The potential challenges and opportunities, Bioenergy from Wood: Sustainable Production in the Tropics, Managing Forest Ecosystems, pp. 67-85, (2014)
  • [10] Syampungani S., Chirwa P.W., Akinnifesi F.K., Sileshi G., Ajayi O.C., The miombo woodlands at the cross roads: Potential threats, sustainable livelihoods, policy gaps and challenges, Natural Resources Forum, 33, pp. 150-159, (2009)
1234567