Photointerpretation Data set

In order to study the evolution of land cover change in this desert region, we analyzed land cover change process of four valleys with different levels of agricultural development. Specifically we want to corroborate the hypothesis that in the last two decades, land cover change in the agricultural valleys of Arica and Parinacota region is oriented to intensification and is occurring at a high rate of change, directly related to some common biophysical drivers of the landscape and to the agronomical conditions, like elevation or water quality.
We found that agricultural intensification is occurring at a high rate of change of land cover, mainly to the spreading of netting and low crops ind detriment of native shrubland or more complex cover like fruit groves.
Results, demonstrate that these valleys are under intensification in differente degrees and landscape simplification is expected in the near future.
Supplemetary 1 and 2 are the results about the transition matrices and rate of change supporting our hypothesis about intensification.

为探究该沙漠区域土地覆被变化的演变规律，本研究分析了四个农业发展水平不一的峡谷地区的土地覆被变化过程。具体而言，我们旨在验证以下假设：在过去的二十年里，阿里卡和帕里纳科塔地区农业峡谷的土地覆被变化呈现出向集约化发展的趋势，且变化速率较高，这一现象与景观的某些常见生物物理驱动因素以及农业条件（如海拔或水质）密切相关。研究发现，农业集约化在土地覆被变化中呈现出高速变化的特征，主要表现为网状覆盖和低矮作物面积的扩张，这导致了原生灌木林或更为复杂的覆盖类型（如果园）的减少。研究结果表明，这些峡谷地区的集约化程度存在差异，且预期在不久的将来，景观将趋于简化。补充材料1和2通过转换矩阵和变化速率的结果，支持了我们对集约化趋势的假设。