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首页> 外文期刊>Natural Hazards >Assessment and management of ecological risk in an agricultural-pastoral ecotone: case study of Ordos, Inner Mongolia, China
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Assessment and management of ecological risk in an agricultural-pastoral ecotone: case study of Ordos, Inner Mongolia, China

机译：农牧交错带生态风险评估与管理-以内蒙古鄂尔多斯市为例

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摘要

Ecological disasters have been occurring more frequently in recent years. As a result, ecological risk management has become an area of research focus as governments emphasize risk management and preparedness rather than disaster response. Ordos, China, is a transitional semiarid to arid area characterized by high ecological risk. Using remote sensing and geographic information system technology, we developed a framework for ecological risk assessment and management for this ecologically vulnerable region. Eight sources of ecological risk in six types of ecosystems in Ordos were identified, including soil erosion, desertification, gales, sand storms, floods, droughts, pests, and pollution. Quantitative and qualitative research was conducted to develop spatial distributions of the cumulative degree of ecological risk. The majority of the area is characterized by medium or low risk, while areas northwest and southwest of Dalad Banner have very high risk. The main risk factors for each ecosystem were identified based on the degrees of risks of the different regions. Corresponding countermeasures were developed by taking risk intensity, ecosystem features, and risk distribution into consideration. Moreover, the management of desertification risk was discussed in detail. Such risk assessment and management approach are helpful for providing guidance for local ecological risk management for similar areas.
机译：近年来，生态灾难的发生更加频繁。结果，由于政府强调风险管理和准备而不是灾害响应，生态风险管理已成为研究重点。中国鄂尔多斯市是向半干旱地区过渡的半干旱地区，其生态风险很高。我们使用遥感和地理信息系统技术，为该生态脆弱地区开发了生态风险评估和管理框架。确定了鄂尔多斯市六种生态系统中的八种生态风险源，包括水土流失，荒漠化，大风，沙尘暴，洪水，干旱，虫害和污染。进行了定量和定性研究，以开发生态风险累积程度的空间分布。该地区的大部分地区具有中等或低风险的特征，而达拉德旗西北和西南地区的风险很高。根据不同地区的风险程度，确定了每个生态系统的主要风险因素。考虑到风险强度，生态系统特征和风险分布，制定了相应的对策。此外，还详细讨论了荒漠化风险的管理。这种风险评估和管理方法有助于为类似地区的当地生态风险管理提供指导。

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