| 基于生态系统服务价值的博斯腾湖小湖湿地生态需水核算 |
| Ecological Water Requirement Accounting of Small Lake Wetland of Bosten Lake Based on Ecosystem Services Value |
| 投稿时间：2020-05-22 修订日期：2020-09-25 |
| DOI：10.15928/j.1674-3075.2020.05.003 |
| 中文关键词:博斯腾湖 湖泊湿地 生态系统服务 生态需水 |
| 英文关键词:Boston Lake lake wetland ecosystem services ecological water requirement |
| 基金项目:国家重点研发计划，2017YFC0404501 |
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| 中文摘要: |
| 湖泊湿地生态系统是陆地生态系统的重要组成部分，适宜的水文条件保障着湖泊湿地生态系统的健康。本文以博斯腾湖小湖湿地为例，依据能值理论系统地计算湖泊湿地各项生态系统服务价值量，并运用相关分析、层次聚类分析等方法结合生态系统服务计算结果与四项关键水文参数，综合确定研究区适宜的生态需水范围。研究结果表明，博斯腾湖小湖湿地生态系统服务价值总量由2013年以前的上下波动（平均年增幅-0.2%，其中有7年为负增长）转变为2013年后的持续增加状态（连续6年增加，平均年增幅6%）；区域来水量则经历了2000-2003年的丰水期、2005-2013年的枯水期以及2013年以来的水量持续增加等三个阶段；生态需水核算结果建议博斯腾湖小湖湿地应保证一年之内日均流量低于8.3 m^3/s的天数不超过72天，而一年之中日均流量超过20.8 m^3/s的天数不低于80天，湿地生态需水量在8.0-8.7 10^8m^3/a之间，最适宜生态水位范围为1047.4-1047.6m。本研究利用生态系统服务价值核算了湖泊湿地生态需水，对区域水资源调控提供了积极的参考价值。 |
| 英文摘要: |
| Lake wetland ecosystems are an essential part of terrestrial ecosystems, and suitable hydrological conditions are the key factor for the health of lake wetlands. Taking the small lake wetland of Bosten Lake as a case study, we systematically assessed the value of ecosystem services for the small lake wetland using emergy theory. The ecosystem service value was then combined with four hydrological parameters (water level, inflow, drought days and flood days), the ecological water requirement range of the study area was determined using correlation analysis and hierarchical cluster analysis. The study period was 22 years (1998-2019) and data resources for the study included the primary productivity of plants, water area and storage capacity of the small lake wetland, as well as hydrological and meteorological data. The total value of ecosystem services fluctuated widely from 1998 to 2013 and then increased continuously from 2013 to 2019. Regional hydrological conditions fell into three periods: wet years (2000-2003), dry years (2005-2013) and runoff escalation years (2013-2019). The ecological water requirements of the wetland was (8.0-8.7)×108 m3/a and the optimal ecological water level range was 1047.4-1047.6 m. Finally, recommendations were made to help insure that the ecological water requirement of the small lake wetland is maintained in order to protect wetland health and ecosystem services: days with average flow < 8.3 m3/s should not exceed 72 days per year, while days with average flow > 20.8 m3/s not be less than 80 days per year. This study provides scientific guidance for regulating water resources in the Bosten Lake region. |
| 彭佳宾,黄 粤,刘 铁,张 勇,程 勇,姜立新.2020.基于生态系统服务价值的博斯腾湖小湖湿地生态需水核算[J].水生态学杂志,41(5):21-30. |
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