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首页> 外文期刊>Transactions in GIS: TG >Assessment of Regional Variations in Biomass Production Using Satellite Image Analysis between 1992 and 2004
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Assessment of Regional Variations in Biomass Production Using Satellite Image Analysis between 1992 and 2004

机译：1992年至2004年间利用卫星图像分析评估生物量生产的区域变化

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As a consequence of the increasing aridity experienced in Hungary in the past decades, any future spatial planning decisions should consider the threat of an arid environment. For identifying sensitive and endangered areas, suitable methods should be developed. These could help those responsible for decision making in providing quick and suitable actions in planning. Through the investigation of vegetation, regional scale variations in the landscape along with the responses of forests to climatic changes can be easily detected. Our primary aim was the evaluation of the natural water supply on the Danube Tisza Interfluve by studying the forests, meadows and pastures of the area in the summers of 1992 and 2004. We investigated with the help of remote sensing the short-term response of vegetation to the altered environmental conditions. According to the spatial and temporal analyses of vegetation indices (NDVI) based on AVHRR and MODIS images, a considerable decrease in the activity of vegetation can be observed throughout the entire vegetation period. Due to the suspected climatic changes, 33% of the studied vegetation might be endangered.
机译：由于过去几十年来匈牙利越来越多的干旱，任何未来的空间规划决策都应考虑干旱环境的威胁。为了识别敏感和危险区域，应开发适当的方法。这些可以帮助负责决策的人员提供快速而适当的计划行动。通过调查植被，可以轻松发现景观的区域尺度变化以及森林对气候变化的响应。我们的主要目的是通过研究1992年和2004年夏季该地区的森林，草地和牧场，对多瑙河Tisza Interfluve上的天然水供应进行评估。我们借助遥感技术对植被的短期响应进行了调查。改变的环境条件。根据基于AVHRR和MODIS图像的植被指数（NDVI）的时空分析，可以观察到整个植被期内植被活动的显着减少。由于怀疑的气候变化，可能有33％的植被受到威胁。

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