LCA-LCC视角下生态缓冲带的环境影响与成本分析

施婉娴; 熊丽君; 郭飞; 雷景程; 徐康宁

doi:10.13205/j.hjgc.202606004

LCA-LCC视角下生态缓冲带的环境影响与成本分析

doi: 10.13205/j.hjgc.202606004

1. 北京林业大学环境科学与工程学院, 北京 100083;
2. 国家发展和改革委员会国土开发与地区经济研究所, 北京 100038;
3. 中国环境科学研究院环境基准标准与风险管控全国重点实验室, 北京 100012;
4. 中国地质大学(北京) 水资源与环境学院, 北京 100083

基金项目:

云南省重点研发计划项目（202503AT100010）；国家自然科学基金项目（42230713）

详细信息

作者简介:
施婉娴(2001-),女,硕士研究生,主要研究方向为流域水环境管理。swx122365@163.com

通讯作者:
徐康宁(1983-),男,副教授,主要研究方向为水污染控制与水环境保护。xukangning@bjfu.edu.cn

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出版历程
- 收稿日期: 2026-01-07
- 录用日期: 2026-02-10
- 修回日期: 2026-01-29
- 网络出版日期: 2026-07-06

Environmental impact and cost analysis of ecological buffer zones from an LCA-LCC perspective

1. College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China;
2. Institute of Spatial Planning & Regional Economy, NDRC, Beijing 100038, China;
3. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;
4. School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, China

摘要

摘要: 为筛选环境与经济维度下的优选流域修复路径，以处理1 m³污水为功能单元，构建基于open LCA的生命周期评价（LCA）与生命周期成本（LCC）相结合的环境经济影响评价框架，对面源污染治理中人工湿地、生态拦截沟和植被恢复工程3种生态缓冲带措施的环境影响与经济成本进行综合评估。结果表明：人工湿地环境-经济综合维度最优，综合成本最低（1.01元/m³），且在大多数环境影响类别中负荷最小，仅土地资源消耗强度略高；生态拦截沟受钢筋和基肥投入影响，在金属资源消耗等方面影响较高，综合成本居中（1.57元/m³）；植被恢复工程综合成本最高（61.14元/m³）且环境影响最为显著，人体致癌毒性等指标偏高，主要源于村镇河段中混凝土植草砖和基肥的大量使用。研究结果可为类似流域生态缓冲带工程方案的环境-经济综合评价与决策提供量化参考。
- 生态缓冲带 /
- 面源污染 /
- 生命周期评价 /
- 生命周期成本分析 /
- 人工湿地 /
- 生态拦截沟 /
- 植物恢复工程
Abstract: To identify optimal watershed remediation pathways under environmental and economic dimensions， an integrated environmental-economic impact assessment framework combining life cycle assessment （LCA） and life cycle costing （LCC） based on open LCA was established， using 1 m³ of treated wastewater as the functional unit. This framework comprehensively evaluated the environmental impacts and economic costs of three ecological buffer measures—constructed wetlands， ecological intercepting ditches， and vegetation restoration projects—in non-point source pollution control. The results indicated that constructed wetlands offer the optimal environmental-economic profile， featuring the lowest comprehensive cost （¥ 1.01 yuan/m³） and the lowest load across most environmental impact categories， with only slightly higher land resource consumption intensity. Ecological intercepting ditches exhibited higher impacts in areas such as metal resource consumption due to the use of rebars and base fertilizer inputs， resulting in a moderate comprehensive cost （¥ 1.57 yuan/m³）. Vegetation restoration projects incurred the highest comprehensive cost （¥ 61.14 yuan/m³） and produced the most significant environmental impacts， with elevated indicators such as human carcinogenic toxicity. This primarily stemmed from the extensive use of concrete grass pavers and base fertilizer in rural river sections. These findings provide quantitative references for environmental-economic integrated evaluation and decision-making regarding ecological buffer zone engineering schemes in similar watersheds.
- ecological buffer zone /
- non-point source pollution /
- life cycle assessment /
- life cycle costing /
- constructed wetland /
- ecological intercepting ditch /
- vegetation restoration project

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