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Mexican agricultural frontier communities differ in forest dynamics with consequences for conservation and restoration
Remote Sensing in Ecology and Conservation ( IF 5.5 ) Pub Date : 2022-04-26 , DOI: 10.1002/rse2.262 Madelon Lohbeck 1, 2 , Ben DeVries 3 , Frans Bongers 1 , Miguel Martinez‐Ramos 4 , Armando Navarrete‐Segueda 4 , Sergio Nicasio‐Arzeta 4 , Christina Siebe 5 , Aline Pingarroni 4 , Germán Wies 4 , Mathieu Decuyper 1, 2
Remote Sensing in Ecology and Conservation ( IF 5.5 ) Pub Date : 2022-04-26 , DOI: 10.1002/rse2.262 Madelon Lohbeck 1, 2 , Ben DeVries 3 , Frans Bongers 1 , Miguel Martinez‐Ramos 4 , Armando Navarrete‐Segueda 4 , Sergio Nicasio‐Arzeta 4 , Christina Siebe 5 , Aline Pingarroni 4 , Germán Wies 4 , Mathieu Decuyper 1, 2
Affiliation
Forest regrowth is key to achieve restoration commitments, but a general lack of understanding when it occurs and how long secondary forests persist hampers effective upscaling. We quantified spatiotemporal forest dynamics in a recently colonized agricultural frontier in southern Mexico, and tested how temporal variation in climate, and cross-community variation in land ownership, land quality and accessibility affect forest disturbance, regrowth and secondary forest persistence. We consistently found more forest loss than regrowth, resulting in a net decrease of 45% forest cover (1991–2016) in the study region. Secondary forest cover remained relatively constant while secondary forest persistence increased, suggesting that farmers are moving away from shifting cultivation. Temporal variation in disturbance was explained by annual variation in climatic variables and key policy and market interventions. We found large differences in forest characteristics across communities, and these were explained by differences in land ownership and soil quality. Forests were better conserved on communal land, while secondary forest was more persistent when farms were larger and soil quality is better. At the pixel-level both old forest and secondary forests were better represented on low-quality lands indicating agricultural concentration on productive land. Both old forest and secondary forest were less common close to the main road, where secondary forests were also less persistent. We demonstrate the suitability of timeseries analyses to quantify forest disturbance and regrowth and we analyse drivers across time and space. Communities differ in forest dynamics, indicating different possibilities, needs and interests. We warrant that stimulating private land ownership may cause remaining forest patches to be lost and that conservation initiatives should benefit the whole community. Forest regrowth competes with agricultural production and ensuring farmers have access to restoration benefits is key to restoration success.
中文翻译:
墨西哥农业边境社区在森林动态方面存在差异,对保护和恢复产生影响
森林再生是实现恢复承诺的关键,但普遍缺乏了解何时发生以及次生林持续多长时间阻碍了有效的升级。我们量化了墨西哥南部最近被殖民的农业前沿的时空森林动态,并测试了气候的时间变化以及土地所有权、土地质量和可达性的跨社区变化如何影响森林干扰、再生和次生林的持久性。我们始终发现森林损失大于再生,导致研究区域的森林覆盖率(1991-2016 年)净减少 45%。次生林覆盖率保持相对稳定,而次生林持续时间增加,表明农民正在摆脱轮作。干扰的时间变化可以通过气候变量的年度变化以及关键政策和市场干预来解释。我们发现不同社区的森林特征存在很大差异,这可以通过土地所有权和土壤质量的差异来解释。公有土地上的森林得到更好的保护,而当农场规模更大、土壤质量更好时,次生林更持久。在像素级别,老林和次生林在低质量土地上的表现更好,表明农业集中在生产性土地上。靠近主要道路的老林和次生林都不太常见,次生林也不太持久。我们证明了时间序列分析对量化森林干扰和再生的适用性,我们分析了跨时间和空间的驱动因素。社区的森林动态不同,表明了不同的可能性、需求和兴趣。我们保证,刺激私人土地所有权可能会导致剩余的森林斑块消失,保护举措应该使整个社区受益。森林再生与农业生产竞争,确保农民获得恢复收益是恢复成功的关键。
更新日期:2022-04-26
中文翻译:
墨西哥农业边境社区在森林动态方面存在差异,对保护和恢复产生影响
森林再生是实现恢复承诺的关键,但普遍缺乏了解何时发生以及次生林持续多长时间阻碍了有效的升级。我们量化了墨西哥南部最近被殖民的农业前沿的时空森林动态,并测试了气候的时间变化以及土地所有权、土地质量和可达性的跨社区变化如何影响森林干扰、再生和次生林的持久性。我们始终发现森林损失大于再生,导致研究区域的森林覆盖率(1991-2016 年)净减少 45%。次生林覆盖率保持相对稳定,而次生林持续时间增加,表明农民正在摆脱轮作。干扰的时间变化可以通过气候变量的年度变化以及关键政策和市场干预来解释。我们发现不同社区的森林特征存在很大差异,这可以通过土地所有权和土壤质量的差异来解释。公有土地上的森林得到更好的保护,而当农场规模更大、土壤质量更好时,次生林更持久。在像素级别,老林和次生林在低质量土地上的表现更好,表明农业集中在生产性土地上。靠近主要道路的老林和次生林都不太常见,次生林也不太持久。我们证明了时间序列分析对量化森林干扰和再生的适用性,我们分析了跨时间和空间的驱动因素。社区的森林动态不同,表明了不同的可能性、需求和兴趣。我们保证,刺激私人土地所有权可能会导致剩余的森林斑块消失,保护举措应该使整个社区受益。森林再生与农业生产竞争,确保农民获得恢复收益是恢复成功的关键。