Through analyzing the impact of sulfur—containing natural gas purification plant on the ecological environment during the construction and operation period, a three level system of evaluation was constructed based on the ecology theory and P—S-R (pressure-state—response) model and was used to evaluate the ecological environmental quality of purification plant region before and after the operation of the project. The result of the evaluation was consistent with the present situation of the ecological environment in the area impacted by the project, which provided powerful evidence to the implementation of the subsequent ecological restoration scheme. The new indicators system could be applied for the regional ecological environment situation assessment at various temporal and spatial levels.%通过分析高含硫天然气净化厂工程施工期和运营期对生态环境的影响,以生态学理论为基础,根据高含硫天然气压力-状态-响应模型,构建三层次高含硫天然气净化厂工程生态评价指标体系,并对高含硫天然气净化厂工程运营前和运营后(未实施生态恢复措施)区域生态环境质量进行综合评价,评价结果与该工程影响区的生态环境现状是一致的,可为后续实施生态恢复方案提供依据.该评价指标体系可运用于不同时空条件下的区域生态环境现状评价.
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