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首页> 外文期刊>Advances in Remote Sensing >Soil Salinity Mapping and Monitoring in Arid and Semi-Arid Regions Using Remote Sensing Technology: A Review
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Soil Salinity Mapping and Monitoring in Arid and Semi-Arid Regions Using Remote Sensing Technology: A Review

机译：利用遥感技术的干旱和半干旱地区土壤盐度测绘和监测：综述

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Soil salinity is a serious environmental problem especially in arid and semiarid areas. It either occurs naturally or is human-induced. High levels of soil salinity negatively affect crop growth and productivity leading land degradation ultimately. Thus, it is important to monitor and map soil salinity at an early stage to enact effective soil reclamation program that helps lessen or prevent future increase in soil salinity. Remote sensing has outperformed the traditional method for assessing soil salinity offering more informative and professional rapid assessment techniques for monitoring and mapping soil salinity. Soil salinity can be identified from remote sensing data obtained by different sensors by way of direct indicators that refer to salt features that are visible at the soil surface as well as indirect indicators such as the presence of halophytic plant and assessing the performance level of salt-tolerant crops. The purposes of this paper are to 1) discuss some soil salinity indicators; 2) review the satellite sensors and methods used for remote monitoring, detecting and mapping of soil salinity, particularly in arid and semi-arid regions; 3) review various spectral vegetation and salinity indices that have been developed and proposed for soil salinity detection and mapping, with an emphasis on soil salinity mapping and assessment in arid and semi-arid regions; and 4) highlight the most important issues limiting the use of remote sensing for soil salinity mapping, particularly in arid and semi-arid regions.
机译：土壤盐度是一个严重的环境问题，特别是在干旱和半干旱地区。它要么自然发生或是人类诱导的。高水平的土壤盐度产生负面影响作物生长和生产率的领先地位降解最终。因此，重要的是在早期监测和映射土壤盐度，以制定有效的土壤填海计划，这有助于减少或防止未来的土壤盐度增加。遥感优于评估土壤盐度的传统方法，为监测和绘制土壤盐度提供更多信息和专业的快速评估技术。通过指示在土壤表面上可见的盐特征以及诸如嗜睡植物的存在等的间接指标并评估盐的间接指标并评估盐的性能水平的直接指示剂，可以从不同传感器获得的遥感数据鉴定土壤盐度。耐药作物。本文的目的是1）讨论一些土壤盐度指标; 2）审查用于远程监测，检测和绘制土壤盐度的卫星传感器和方法，特别是在干旱和半干旱地区; 3）审查已开发和提出的各种光谱植被和盐度指数，用于土壤盐度检测和测绘，重点是干旱和半干旱地区的土壤盐度测绘和评估; 4）强调限制使用遥感对土壤盐度映射的使用的最重要问题，特别是在干旱和半干旱地区。

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