生态与农村环境学报 ›› 2021, Vol. 37 ›› Issue (1): 49-56.doi: 10.19741/j.issn.1673-4831.2020.0123

• 区域环境与发展 • 上一篇    下一篇

1995-2015年淮河生态经济区生态系统服务评估与时空变化分析

黄颖, 李鑫   

  1. 江苏师范大学地理测绘与城乡规划学院, 江苏 徐州 221116
  • 收稿日期:2020-03-10 出版日期:2021-01-25 发布日期:2021-01-22
  • 通讯作者: 李鑫,E-mail:topzcg@126.com E-mail:topzcg@126.com
  • 作者简介:黄颖(1997-),女,江苏南通人,研究方向为土地利用规划与土地生态。E-mail: 1354597741@qq.com
  • 基金资助:
    国家自然科学基金(41971221);江苏省自然科学基金(BK20191468);教育部人文社科基金(19YJCZH089);江苏师范大学研究生科研与实践创新计划项目(2020XKT028)

Ecosystem Services Evaluation and Spatiotemporal Analysis of Huaihe River Eco-economic Zone from 1995 to 2015

HUANG Ying, LI Xin   

  1. School of Geography, Geomatics and Planning, Jiangsu Normal University, Xuzhou 221116, China
  • Received:2020-03-10 Online:2021-01-25 Published:2021-01-22

摘要: 生态系统服务成为促进生态系统与人类社会和谐统一的有效管理中介。采用市场价值法、水量平衡方程法、InVEST模型和HSI模型对1995-2015年淮河生态经济带的食物供给、水源涵养、气候调节和生境质量功能进行评价,并分析其时空变化与相关原因。结果表明:淮河生态经济带各生态系统服务分布呈现较大时空异质性。食物供给功能分布具有较强的地域性,食物供给服务较好地区由西北向西南偏移,且随时间变化明显;水源涵养功能在时间序列上空间分布差异较大,单位栅格面积水源涵养量最大为1 439.15 mm,最小仅为-407.65 mm,水源涵养量总体呈先增加后减少态势;1995-2015年淮河生态经济带累计固碳量为203.7 Tg,表现为碳汇区,固碳速率呈现先快后慢的增长态势;生境质量最好和较好区域面积占比逐渐减少,2005和2010年生境质量得分平均值较大,但在2010年之后又呈下降趋势。淮河生态经济带开发在空间上要与生态系统服务空间分布保持均衡协调,此外应以流域理念进行跨区域生态保护治理协作。该研究可为淮河生态经济带开发战略落实以及生态系统服务保护、调控与管理提供科学依据。

关键词: 生态系统服务, 淮河生态经济带, 生态功能评价模型, 土地利用, 时空变化

Abstract: Ecosystem service has become an effective management agency to promote the harmony and unity of ecosystems and human society. The ecosystem service functions of food supply, water conservation, climate regulation and habitat quality of the Huaihe River Eco-economic Zone (HRECZ) were evaluated during the past 20 years by using market value method, water balance equation method, InVEST model and HSI model, respectively. The spatial-temporal variation and related reasons of four ecosystem services were analyzed. The results revealed that:The spatial pattern of ecosystem services in HRECZ exhibited great spatial heterogeneity; the distribution of food supply function had strong regional characteristics with respect to different provinces, and the good part of food supply service was shifting from northwest to southwest with noticeable temporal changes; For water conservation function, temporal variation was also obvious with increasing at early stage and then decreasing, and spatially, the maximum water source conservation amount of per unit grid area was 1 439.15 mm, whereas the minimum was only -407.65 mm; The cumulative carbon sequestration in HRECZ from 1995 to 2015 was 203.7 Tg, showing certain carbon sequestration function, and the sinking rate was fast at the early stage while becoming slowly progressively; The proportion of areas with good habitat quality in the HRECZ decreased, and the average score of habitat quality reached the maximum in 2005 and 2010, however, after then, it showed a downward trend. In the future, HRECZ should balance the spatial distribution of ecosystem services and the land to be developed. Cross-regional ecological protection and management cooperation should be carried with the guide of river basin governance. Suggestions are made available for the comprehensive development of HRECZ, and the protection, regulation and management of its ecosystem regulation.

Key words: ecosystem service, Huaihe River eco-economic zone, ecological function evaluation model, land use, temporal and spatial variation

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