Response of supply-demand relationship in surface water resource provisioning service to water-saving policy: A case study of Daqing River Basin

PDF HTML阅读 XML下载 导出引用 引用提醒 地表水资源供给服务供需关系对节水政策的响应——以大清河流域为例 DOI: 10.5846/stxb202204010823 作者: 作者单位: 作者简介: 通讯作者: 中图分类号: 基金项目: 国家自然科学基金项目（41925005，41871218） Response of supply-demand relationship in surface water resource provisioning service to water-saving policy: A case study Daqing River Basin Author: Affiliation: Fund Project: 摘要 | 图/表 访问统计 参考文献 相似文献 引证文献 资源附件 文章评论 摘要:水资源是基础性自然资源和战略资源，科学量化水资源供给服务的供需关系、识别供需矛盾的突出区域是进行流域水资源管理的重要前提。以大清河流域为例，利用InVEST模型，建立了水资源供给服务空间流动量化方法，预测了用水效率提升、节水灌溉两种节水政策情景对水资源供给服务供需关系的影响。结果表明：（1）流域水资源供给服务和水资源需求量均呈现出上游低、下游高的空间分布格局，农业用水为流域主要用水类型，2010-2015年，流域水资源供给服务增长0.97%，水资源需求量出现了9.6%的下降；（2）2010-2015年，流域整体水资源供给服务的供需比由0.78提升至0.88，服务的空间流动使得上游盈余的水量缓解了中下游的用水压力，但中下游水资源需求大于供给的问题仍普遍存在；（3）提升用水效率、推行节水灌溉这两种节水政策均能够有效改善大清河流域的水资源供需关系，分别可将流域水资源供需比提升至0.97和0.96，基本达到供需平衡。研究可为北方资源型缺水流域水资源供需匹配度的提高、节水政策潜力的评估提供借鉴。 Abstract:As an important ecosystem service, plays a key role socio-economic development. Quantifying its and identifying the critical, imbalance areas can provide specific information for basin resources management. Here, Basin, area with severe shortage, was taken as region. The spatial flow (SWRPS) demand were quantified by using InVEST model statistics data, respectively. Then relationships assessed terms two policy scenarios (water utilization efficiency improvement irrigation implementation). Compared upstream areas, downstream presented higher supply SWRPS. Agriculture main industry utilization. During 2010-2015, SWRPS increased 0.97% while decreased 9.6%. Consequently, ratio from 0.78 0.88. Although mitigated pressure middle regions, still larger than regions. However, improving implementing would effectively improve which could increase 0.97 0.96, provides approach quantifying potential policies water-shortage basin, also quantitative