Linking multi-temporal analysis and community consultation to evaluate the response to the impact of Hurricane Stan in coffee areas of Chiapas, Mexico
Linking multi-temporal analysis and community consultation to evaluate the response to the impact of Hurricane Stan in coffee areas of Chiapas, Mexico
复制标题
将多时间分析和社区咨询联系起来，评估对墨西哥恰帕斯州咖啡区斯坦飓风影响的响应
DOI：
10.1007/s11069-010-9652-0
复制
发表时间：
2011
期刊：
影响因子：
3.7
通讯作者：
J. Barrera
中科院分区：
文献类型：
--
作者：
G. Cruz;H. Eakin;H. Morales;J. Barrera
本文分析了墨西哥恰帕斯州咖啡种植者对斯坦飓风（2005年10月）影响的土地利用反应。通过结合SPOT多光谱图像的无监督分类和全色图像的视觉解译（飓风发生前8个月，飓风发生后2、14和40个月），对土地覆盖的影响进行了多时段分析。这一地理分析提供的信息是根据住户调查收集的信息加以解释的。虽然飓风在整个地区造成了严重破坏，但研究区域受到的主要影响是在河岸地带，在那里，咖啡收成和土壤的损失程度如此之大，即使在事件发生14个月后，这些地区拥有土地的家庭仍在努力恢复。然而，40个月后，土壤完全流失的地区开始支持土壤和植被，这表明在这些地区重新种植咖啡的可能性。虽然飓风发生时，由于前几年价格低迷，咖啡部门特别脆弱，但其影响并没有引起广泛的土地使用变化。然而，调查显示，人们现在更加了解在河流边缘生活和耕作的风险，现在正在采取土壤保护措施和植树来减少风险。
This paper analyses the responses related to land use of coffee growers in Chiapas, Mexico to the impact of Hurricane Stan (October 2005). A multi-temporal analysis of the effect on land cover was performed through the combination of unsupervised classification of SPOT multispectral images and visual interpretation of panchromatic images (8 months previous to the hurricane, and 2, 14, and 40 months after the hurricane). The information provided by this geographic analysis was interpreted in light of information gathered though household surveys. Although the hurricane wrecked havoc across the region, the main impact in the study area was in the riparian zones where the extent of the loss experienced in terms of coffee harvest and soil was such that, even 14 months after the event, households with land in those areas were struggling to recover. Nevertheless, after 40 months, the zones that had suffered total soil loss began to support soil and vegetation, indicating the possibility of replanting coffee in those areas. Although the hurricane occurred when the coffee sector was particularly fragile as a result of the preceding several years of poor prices, the impact did not trigger extensive land use change. The surveys showed, however, that people are now more informed of the risk of living and farming on the river margins and are now performing soil conservation practices and planting trees to reduce risk.