黄土丘陵沟壑区生态风险评价及调控分区

Ecological Risk and Regional Regulation of the Loess Hilly and Gully Region

生态风险评估是衡量区域生态可持续发展的重要指标,也是维护区域安全与稳定的基础性工作。本研究以黄土丘陵沟壑区吴起县为例,从人-自然综合角度,划分生态调控类型。研究结果表明:吴起整体生态良好,现有人为干扰主要来自道路网络及本身地形情况,将研究区划分为高风险-生态优化区、中风险-过渡区、低风险-开发建设区3类生态风险区,并提出相应意见。

Ecological risk assessment is an important index to measure regional ecological sustainable development, and it’s also a basic work to maintain regional security and stability. Taking Wuqi County in Loess hilly and gully region as an example, this paper constructed the ecological risk assessment of "ecological sensitivity assessment + ecological disturbance assessment", and classified the ecological regulation types from the perspective of human-nature synthesis. The results show that:The ecology of Wuqi is benign, and the existing human disturbance mainly comes from the road network and its topography. The study area is divided into three types of ecological risk areas:high-risk ecological optimization area, medium risk transition area, and low risk development and construction area,and corresponding suggestions are proposed.