Aridity and desertification: Exploring environmental hazards in Jaichal, Argentina
Aridity and desertification: Exploring environmental hazards in Jaichal, Argentina
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DOI：
10.1016/j.apgeog.2005.09.001
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发表时间：
2006-01-01
影响因子：
4.9
通讯作者：
Crews-Meyer, KA
中科院分区：
文献类型：
--
作者：
Adamo, SB;Crews-Meyer, KA
本文探讨了阿根廷中西部所有地区的环境危害，更具体地说是荒漠化过程，解决了物理框架和长期人类居住以及自然资源利用的综合影响。它基于使用植被指数、图像区分、变化检测和模式度量进行遥感分析。结果表明，1973 年至 2001 年间，植被数量净减少，植被类别破碎化程度增加。这被解释为土地退化过程存在的迹象，可能与灌溉农业、放牧、柴火采集和人口定居等领域的人类活动有关。 (c) 2005 Elsevier Ltd. 保留所有权利。
This paper explores environmental hazards, more specifically desertification processes, in all area of west central Argentina, addressing the combined influence of the physical framework and the long lasting human settlement and use of natural resources. It is based upon the analysis of remotely sensed using vegetation indices, image differentiation, change detection, and pattern metrics. The results indicate a net decreased in the amount of vegetation between 1973 and 2001, and increasing fragmentation of vegetation classes. This is interpreted as a sign of the presence of land degradation processes likely linked to human activities in the areas of irrigated farming, grazing, firewood gathering and population settlement. (c) 2005 Elsevier Ltd. All rights reserved.