地理科学 ›› 2017, Vol. 36 ›› Issue (10): 1546-1554.doi: 10.13249/j.cnki.sgs.2016.10.012

• • 上一篇    

商洛市水源涵养服务功能空间格局与影响因素

陈姗姗1,2(), 刘康1(), 包玉斌1, 陈海1   

  1. 1.西北大学城市与环境学院, 陕西 西安 710127
    2.宝鸡文理学院陕西省灾害监测与模拟重点实验室, 陕西 宝鸡 721007
  • 收稿日期:2016-01-20 修回日期:2016-05-14 出版日期:2017-02-23 发布日期:2017-02-23
  • 作者简介:

    作者简介:陈姗姗(1984-),女,陕西宝鸡人,博士研究生,主要研究方向为生态评估。E-mail:chenshanshan018@163.com

  • 基金资助:
    环保部重点项目(STSN-05-27)、西北大学研究生自主创新项目(YZZ14009)、国家林业公益性行业科研专项(201304309)资助

Spatial Pattern and Influencing Factors of Water Conservation Service Function in Shangluo City

Shanshan Chen1,2(), Kang Liu1(), Yubin Bao1, Hai Chen1   

  1. 1.College of Urban and Environmental Science, Northwest University, Xi’an 710127, Shaanxi, China
    2. Key Laborary in Shaanxi Province for Monitored Calamity and Mechanism Simalation, Baoji University of Arts and Sciences, Baoji 721007, Shaanxi, China
  • Received:2016-01-20 Revised:2016-05-14 Online:2017-02-23 Published:2017-02-23
  • Supported by:
    Key Project of the Environmental Protection Department (STSN-05-26), Graduate Student Self-innovation Project of Northwest University (YZZ14009), Special Scientific Research of State Forest Public Welfare Profession of China (201304309)

摘要:

以商洛市为例,利用InVEST产水量模型和多年平均涵养水量模型,以参数本地化、实地率定和结果验证,对该区水源涵养功能的空间格局分异规律及其影响因素进行分析。结果表明: 商洛市水源涵养总量为27.48×108m3/a,水源涵养能力为324.85 mm。五大流域水源涵养功能依次为旬河>乾佑河>金钱河>丹江>洛河。 气候因素对产水能力空间格局影响最大,10 a土地利用变化和下垫面植被、土壤因素则对水源涵养空间异质性影响显著。 子流域单元产水能力相关性强的因子为多年平均降水、实际蒸散发和植物可利用水,水源涵养功能关键驱动因子是潜在蒸散量、土壤饱和导水率与森林覆盖率。

关键词: 产水量, 水源涵养功能, InVEST模型, 商洛市

Abstract:

As a major water source region of the of South to North Water Diversion Project, Shangluo City was selected as a case study. Water yield sub-model of the InVEST Model and Water Retention Model were used to reveal the spatial heterogeneity and influencing factor of the service of water retention. Through the process of in-situ acquisition, the field calibration and model verification, several conclusions were drawn as the following: 1) The gross amount of water conservation was 2.748×109m3/a, and the capacity of water conservation was 324.85 mm in Shangluo City. The order of the capacity of water conservation of five watersheds was the Xunhe River, the Qianyou River, the Jinqian River, theDanhe River and the Luohe River. 2) Climate factors had the greatest effect on the spatialpattern of water yield capacity, and the land use change in recent 10 years and vegetationand soil properties in different underlying surface impacted significantly on the spatial heterogeneity of water conservation. 3) There was probably a stronger correlation among the space of water yield capacity and mean annual precipitation, actural vaporation, and the effect of plant available. The key driving factors of water conservation function was potentialevaporation, soil saturated hydraulic conductivity and forest cover rate.

Key words: water yield, water conservation function, InVEST Modle, Shangluo City

中图分类号: 

  • P964