地理漫步·世界地理英语精读30篇（3）
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Serengeti Fire Regime: Colonial Suppression, Pastoral Knowledge, and Contemporary Prescribed Burns
塞伦盖蒂火情管理：殖民压制、游牧知识与当代计划烧除实践
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Historically, Maasai herders used low-intensity fires to maintain grassland quality and deter tsetse fly proliferation across Serengeti’s savanna mosaic.
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British colonial authorities banned these burns in the 1920s, imposing fire suppression policies that inadvertently intensified fuel accumulation and wildfire severity.
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By the 1990s, decades of accumulated biomass contributed to catastrophic late-dry-season conflagrations threatening wildlife corridors and tourism infrastructure.
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Tanzanian park authorities now collaborate with Maasai elders to co-design seasonal burn windows aligned with rainfall patterns and wildebeest migration cycles.
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Satellite-derived fire scar maps reveal that prescribed burns conducted between January and March reduce uncontrolled fire incidence by 68% in adjacent zones.
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These burns prioritize landscape heterogeneity—creating fine-scale mosaics that support both grazing ungulates and fire-adapted shrub species.
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Ecologists emphasize that fire management here is less about control than calibrated coexistence with atmospheric, vegetative, and human temporalities.
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Park rangers undergo bilingual training in both Swahili fire terminology and remote-sensing interpretation to bridge institutional and vernacular knowledge systems.
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International donors often fund equipment but rarely support the intergenerational knowledge transfer essential for adaptive implementation.
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Fire return intervals now average every 3–5 years in managed zones versus 12–18 years in suppressed areas, restoring ecological function without erasing cultural agency.
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The Serengeti model challenges global fire policy frameworks by centering pastoral epistemologies as legitimate climate adaptation science.
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What was once dismissed as ‘primitive burning’ is now codified in Tanzania’s National Fire Management Strategy as a cornerstone of landscape governance.