摘要
生态系统服务的持续供给是社会经济可持续发展的基础,干旱区内陆河流域湿地生态系统服务价值评估有助于提高区域的生态安全水平。文章利用遥感解译与定量评价相结合的方法,评估了甘肃省瓜州县疏勒河中游的湿地生态系统服务价值。结果表明:2017年疏勒河中游湿地面积为161933.04 hm2,较2007年减少了0.77%;受湿地面积缩减的影响,湿地发挥气候调节、调洪蓄水和固碳释氧等功能下降,其调节服务价值减少了0.18倍,但随着湿地管护和科研监测管理水平的逐步提高,湿地生态系统的供给服务、支持服务和文化服务价值分别增加了0.66倍、0.67倍和3.67倍,因此,湿地生态系统最终服务价值由2007年的17.10×108元增至2017年的18.27×108元,增加了6.84%;评估结果揭示了湿地维持流域社会经济发展的重要性,为管理者在制定湿地管护及生态补偿机制时提供了重要参考。
The sustainable supply of ecosystem services is the basis of the sustainable socio-economic development.It is helpful to improve the level of regional ecological security that the evaluation of wetland ecosystem services value in the inland river basin of arid area.The method of remote sensing interpretation combined with quantitative evaluation was used to evaluate the value of wetland ecosystem services in the middle reaches of Shule River in Guazhou County,Gansu Province.The results showed that the wetland area in the middle reaches of Shule River was 161933.04 hm2 in 2017,which was 0.77%less than that in 2007.Affected by the reduction of wetland area,the functions of wetland,such as climate regulation,flood regulation and water storage,carbon sequestration and oxygen release,have declined,and the regulating service value has decreased by 0.18 times.However,with the gradual improvement of the management level of wetland management and scientific research monitoring,the value of supply service,support service and cultural service of wetland ecosystem increased by 0.66 times,0.67 times and 3.67 times respectively,Therefore,the final service value of wetland ecosystem increased from 17.10×108 Yuan in 2007 to 18.27×108 Yuan in 2017,an increase of 6.84%;The evaluation results reveal the importance of wetland to maintain the social and economic development of the basin,and also provide important reference for managers in formulating wetland management and ecological compensation mechanism.
作者
罗晓翔
LUO Xiaoxiang(Guanzhou Natural Forest Management and Protection Station,Jiuquan 736100,China)
出处
《环境科学与技术》
CAS
CSCD
北大核心
2020年第S02期229-234,共6页
Environmental Science & Technology
关键词
疏勒河中游
湿地类型
湿地生态系统服务
价值评估
middle reaches of Shule River
wetland type
wetland ecosystem services
value assessment
作者简介
罗晓翔(1987-),男,助理工程师,在职研究生,主要从事天然林、湿地、野生动植物保护管理工作,(电子信箱)luo0723@sina.com。
