资源科学 ›› 2016, Vol. 38 ›› Issue (11): 2127-2136.doi: 10.18402/resci.2016.11.11

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关中盆地生态服务权衡与协同时空差异

孙艺杰1, 任志远1,2(), 赵胜男1   

  1. 1. 陕西师范大学旅游与环境学院,西安 710119
    2. 陕西师范大学西北历史环境与经济社会发展研究院,西安 710062
  • 收稿日期:2016-06-02 修回日期:2016-09-05 出版日期:2016-11-16 发布日期:2016-11-16
  • 作者简介:

    作者简介:孙艺杰,女,辽宁兴城市人,硕士生,主要从事资源环境遥感与GIS的相关研究。E-mail:jessicasun@snnu.edu.cn

  • 基金资助:
    教育部人文社会科学重点研究基地项目(14JJD840004)国家自然科学基金项目(41371523)科技部科技支撑项目(2014BAL

Spatial-temporal difference analysis of ecosystem service trade-off and synergy in the Guanzhong Basin of China

SUN Yijie1, REN Zhiyuan1,2(), ZHAO Shengnan1   

  1. 1. College of Tourism and Environment, Shaanxi Normal University,Xi’an 710119, China;
    2. Institute for Historical Environment and Socio-economic Development in Northwest China,Shaanxi Normal University,Xi’an 710062, China;
  • Received:2016-06-02 Revised:2016-09-05 Online:2016-11-16 Published:2016-11-16

摘要:

本文基于空间相关分析、线性和幂函数回归等方法,分析了1990-2010年关中盆地初级生产力(NPP)、保水量和食物供给三种服务之间的相关性,拟合NPP与保水量、NPP与食物供给的空间权衡与协同关系,探讨生态服务之间权衡与协同关系的时空差异,进一步通过热点区识别,了解不同区域生态服务供给能力的强弱,为关中地区生态建设提供一定的理论决策依据。结果表明:①NPP与保水量多年均值的相关系数为0.409,即NPP增加会促进保水量的增加,反过来保水量的增加有利于NPP的累积,表现为协同关系;NPP与食物供给、食物供给与保水量多年均值的相关系数分别为-0.441、-0.366,均表现为权衡关系;②关中盆地NPP和保水量之间存在较强的协同关系,NPP和食物供给之间存在较强的权衡关系,具有一定的空间差异性。通过幂函数拟合发现,NPP与保水量在关中盆地东北部协同关系拟合显著,且都表现为多年增加的变化趋势; NPP与食物供给在关中盆地中部制约关系比较突出,NPP增加伴随着食物供给的幂函数形式下降;③关中盆地多重服务热点区基本位于南部边缘地区的秦岭和北部的北山。

关键词: 关中盆地, 生态服务价值, 权衡与协同, 热点区识别

Abstract:

Based on spatial correlation analysis and linear and power function regression,we analyzed the correlation between net primary productivity,water conservation and food provision in the Guanzhong Basin from 1990-2010. We fit the spatial trade-off and synergy between NPP and water conservation and NPP and food provision,to explore the spatial and temporal differences between ecosystem service value. Through hotspot identification to understand the supply capacity of different regional ecological services we provide theoretical suggestions for ecological construction within the Guanzhong Basin. We found the correlation coefficient between the mean vale of NPP and water conservation to be 0.409,which means that NPP increases promote an increase in water retention,and in turn increasing the amount of water retention is conducive to the accumulation of NPP. The correlation coefficient between the mean vale of NPP and food provision is -0.441. The correlation coefficient between the mean vale of food provision and water conservation is -0.366. There is noticeable synergy between NPP and water conservation,and a noticeable trade-off between NPP and food provision. In respect of synergy,there is growth of NPP with growth in water conservation in cultivated land in northeastern Guanzhong Basin. In respect of trade-off,the growth in NPP with power function decline of food provision in cultivated land in the middle of the basin. Finally,hotspots are mostly in the southern edge of the Qinling Mountains and Northern Beishan.

Key words: Guanzhong Basin, ecosystem service values, trade-off and synergy, hotspots