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机构地区:[1]兰州大学草地农业科技学院农业部草地农业生态系统学重点实验室,甘肃兰州730020
出 处:《草业科学》2010年第3期31-39,共9页Pratacultural Science
基 金:国家"863"计划数字农业技术专题课题"牧区草畜数字化管理决策支持系统"(2007AA10Z232)
摘 要:日益严重的草地鼠虫害,己成为引发草原退化、沙化、水土流失的重要因素之一,并威胁我国草地畜牧业的可持续发展。"3S"技术作为一种综合性技术手段,具有探测范围广、信息量大、成本低、受地面条件限制和人为因素影响小等特点,可实现对各种空间信息和环境信息的快速、机动、准确、可靠的收集、处理与更新。这一技术与地面调查资料的结合,不仅加快了对草地资源的宏观监测速度,而且能够快速、准确地反映草地鼠虫害的变化动态。结合鼠虫害发生的特点,重点概述了运用"3S"技术对草地鼠虫害进行监测的原理、方法及存在的问题,并分析了该领域未来的研究重点和"3S"技术的应用前景。The rodents and insects are becoming more and more serious in grassland. It is one of important factors to grassland degradation, desertifieation and soil erosion, and further threaten the sustainable development of grassland animal husbandry. As a syntaxic technology, remote sensing has the following advantages: wider detective range, more information, lower cost, and less limitation to ground condition and human activity, spatial information and environmental messages can be collected, handled and updated quickly, flexibly, accurately and reliably. "3S" technologies combined with the data collected from ground investigation can not only monitor the grassland on a macro scale, but also reflects the dynamics of the rodent and insect pests accurately. This paper was summarized the principles, methods and existed problems in monitoring the grassland pests with the "3S" technologies, and analyzed the important content in this field study and the prospect of the application in the future.
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