地理研究 ›› 2017, Vol. 36 ›› Issue (3): 592-602.doi: 10.11821/dlyj201703016

• 研究论文 • 上一篇    

关中盆地生态系统服务的权衡与协同关系动态分析

郝梦雅1(), 任志远1,2(), 孙艺杰1, 赵胜男1   

  1. 1. 陕西师范大学旅游与环境学院,西安 710119
    2. 西北历史环境与经济社会发展研究院,西安 710062
  • 收稿日期:2016-10-09 修回日期:2017-01-22 出版日期:2017-03-20 发布日期:2017-03-22
  • 作者简介:

    作者简介:郝梦雅(1994- ),女,山西晋中人,硕士,研究方向为土地评价与规划。E-mail:haomengya@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)

The dynamic analysis of trade-off and synergy of ecosystem services in the Guanzhong Basin

Mengya HAO1(), Zhiyuan REN1,2(), Yijie SUN1, Shengnan ZHAO1   

  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, Xi'an 710062, China
  • Received:2016-10-09 Revised:2017-01-22 Online:2017-03-20 Published:2017-03-22

摘要:

测算2000-2012年关中盆地的净初级生产力(NPP)价值量、土壤保持价值量和食物供给价值量,通过引入玫瑰图来研究不同土地利用类型中生态系统服务的时空差异,进而探究三种生态系统服务的权衡和协同关系,并分析其在近13年间的动态变化特征,最后研究土地利用变化对生态系统服务权衡和协同关系的影响来探究其驱动机制。结果表明:① 研究区NPP单位面积年均价值量约为1720.495 元/hm2,土壤保持单位面积年均价值量约为768.889元/hm2,食物供给单位面积年均价值量约为167.874元/hm2。从空间角度分析,NPP和土壤保持的高值区均分布在盆地边缘的山地,低值区集中于盆地中部,而食物供给呈相反格局。从时间角度分析,三种生态系统服务均呈现增加的趋势。2000-2012年,NPP单位面积价值量增幅为21%,土壤保持单位面积价值量增幅为46.7%,食物供给单位面积价值量增幅为245.7%。② NPP与土壤保持呈现协同关系,而NPP与食物供给、土壤保持与食物供给呈现权衡关系。③ 13年来关中盆地生态系统服务呈现冲突加强协同减弱的趋势。具体而言,NPP与土壤保持的协同关系表现出明显的下降趋势,NPP与食物供给的权衡关系逐渐增强,而土壤保持与食物供给的权衡关系在13年间基本保持稳定状态。④ 从土地利用变化的角度看,研究区生态系统服务权衡增加协同减少主要归因于耕地和林地的大量减少。同时,权衡土地资源利用中各类冲突对于土地资源的优化使用也有重大的意义。

关键词: 关中盆地, NPP, 土壤保持, 食物供给, 权衡与协同动态变化, 土地利用

Abstract:

The Guanzhong Basin is the economic center of Northwest China. In recent years, with the development of the economy, many ecological environment problems have emerged in this region. Therefore, it is important to examine the dynamic changes of trade-off and synergy of ecosystem services in the Guanzhong Basin and explore their influencing factors. In this paper, many models are used to estimate the net primary production (NPP), soil retention and food supply in the basin from 2000 to 2012. And research is conducted on the spatial and temporal change of ecosystem services in different types of land covers by using Rose diagram. Then, we explored the trade-off and synergy among three ecosystem services by correlation diagram made by R software and analyzed its dynamic characteristics in the 13 years. At last, we analyzed the effect of the land cover change on the relationship of trade-off and synergy to explore its driving mechanism. The results indicate that: (1) The annual average NPP per unit area, the annual average value of soil retention per unit area and the annual average value of food supply per unit area were 1720.495 yuan/hm2, 768.889 yuan/hm2 and 167.874 yuan/hm2, respectively. From the perspective of space, the high value regions of NPP and soil retention were distributed over mountains and low value regions were over the central part of the basin. But the food supply presented the opposite pattern. From the perspective of time, three ecosystem services were increased in the 13 years. The annual average NPP per unit area, the annual average value of soil retention per unit area and the annual average value of food supply per unit area increased by 21%, 46.7% and 245.7%, respectively. (2) There were trade-off between NPP and food supply, soil retention and food supply. And there were synergy between NPP and soil retention. (3) On the whole, the trade-off of ecosystem services enhanced and the synergy weakened during the 13 years in the Guanzhong Basin. The degree of synergy between NPP and soil retention decreased. The degree of trade-off between NPP and food supply increased. And the trade-off relationship between soil retention and food supply remained stable during the 13 years. (4) From the perspective of land cover changes, the reduction of cultivated land and forest land is the main driving force of the change of relationship among ecosystem services. At the same time, it is significant to balance conflicts in land resource to use land resource better.

Key words: Guanzhong Basin, NPP, soil retention, food supply, dynamic changes of trade-off and synergy, land use