Scholarlink

<p>Miombo woodlands of the Lubumbashi Charcoal Production Basin (LCPB) are crucial for biodiversity and ecosystem services, yet are threatened by anthropogenic pressures, including rising energy demand. This study analyzes key degradation drivers and biodiversity indicators across three recovery stages—advanced, intermediate, and early recovery—using plot-based surveys. The results identified wood harvesting for charcoal production as the main driver of Miombo woodland degradation, which increases with distance from settlements. In contrast, invasive species, bark stripping, and artisanal mining have comparatively minor effects. In terms of ecosystem condition, the early recovery stage showed low diversity (Shannon–Weiner index = 1.14). This ecosystem is dominated by <i>Isoberlinia angolensis</i> (IVI = 18.37; abundance = 22 individuals), <i>Julbernardia paniculata</i> (IVI = 11.17; 18 individuals), and <i>Brachystegia wangermeeana</i> (IVI = 8.53; 6 individuals), with weak structural attributes (51 trees/ha, mean DBH = 11.56&#xa0;cm, mean height = 4.47&#xa0;m). The intermediate recovery stage showed greater diversity (Shannon–Weiner index = 2.13), dominated by <i>B. wangermeeana</i> (IVI = 13.69; 83 individuals), <i>B. spiciformis</i> (IVI  = 12.04; 56 individuals), and <i>Albizia adianthifolia</i> (IVI = 8.90; 48 individuals), with improved structure (285 trees/ha, DBH = 18.83&#xa0;cm, height = 6.31 m). The advanced recovery stage exhibited the greater diversity (Shannon–Weiner index  = 2.11), dominated by <i>Marquesia macroura</i> (IVI  = 23.09; 88 individuals), <i>Diplorhynchus condylocarpon</i> (IVI = 11.27; 64 individuals), and <i>J. globiflora</i> (IVI  = 9.10; 71 individuals), with the most developed structure (323 trees/ha, DBH = 24.20&#xa0;cm, height = 9.64&#xa0;m). The findings support policy reforms such as regulating destructive practices and expanding private protected areas to enhance forest management amid increasing anthropogenic pressures.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Drivers and biodiversity indicators of Miombo degradation in the Lubumbashi charcoal production basin (Upper Katanga, DR Congo)

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年1月5日

查看全文
  • Héritier Khoji Muteya,
  • Dieu-donné N’tambwe Nghonda,
  • Jonas Yona Mleci,
  • François Malaisse,
  • Olivia Lovanirina Rakotondrasoa,
  • Quentin Ponette,
  • Yannick Useni Sikuzani,
  • Jan Bogaert

摘要

Miombo woodlands of the Lubumbashi Charcoal Production Basin (LCPB) are crucial for biodiversity and ecosystem services, yet are threatened by anthropogenic pressures, including rising energy demand. This study analyzes key degradation drivers and biodiversity indicators across three recovery stages—advanced, intermediate, and early recovery—using plot-based surveys. The results identified wood harvesting for charcoal production as the main driver of Miombo woodland degradation, which increases with distance from settlements. In contrast, invasive species, bark stripping, and artisanal mining have comparatively minor effects. In terms of ecosystem condition, the early recovery stage showed low diversity (Shannon–Weiner index = 1.14). This ecosystem is dominated by Isoberlinia angolensis (IVI = 18.37; abundance = 22 individuals), Julbernardia paniculata (IVI = 11.17; 18 individuals), and Brachystegia wangermeeana (IVI = 8.53; 6 individuals), with weak structural attributes (51 trees/ha, mean DBH = 11.56 cm, mean height = 4.47 m). The intermediate recovery stage showed greater diversity (Shannon–Weiner index = 2.13), dominated by B. wangermeeana (IVI = 13.69; 83 individuals), B. spiciformis (IVI  = 12.04; 56 individuals), and Albizia adianthifolia (IVI = 8.90; 48 individuals), with improved structure (285 trees/ha, DBH = 18.83 cm, height = 6.31 m). The advanced recovery stage exhibited the greater diversity (Shannon–Weiner index  = 2.11), dominated by Marquesia macroura (IVI  = 23.09; 88 individuals), Diplorhynchus condylocarpon (IVI = 11.27; 64 individuals), and J. globiflora (IVI  = 9.10; 71 individuals), with the most developed structure (323 trees/ha, DBH = 24.20 cm, height = 9.64 m). The findings support policy reforms such as regulating destructive practices and expanding private protected areas to enhance forest management amid increasing anthropogenic pressures.