地理研究 ›› 2016, Vol. 35 ›› Issue (12): 2395-2406.doi: 10.11821/dlyj201612017

• 研究论文 • 上一篇    

基于IBIS模型的耕地生态价值估算——以成都崇州市为例

任平1,2, 洪步庭1,2, 马伟龙1,2, 苑全治1,2, 周介铭1,2   

  1. 1. 四川师范大学西南土地资源评价与监测教育部重点实验室,成都 610066
    2. 四川师范大学国土资源开发与保护协同创新中心,成都 610066
  • 收稿日期:2016-07-01 修回日期:2016-09-30 出版日期:2016-12-23 发布日期:2016-12-23
  • 作者简介:

    作者简介:任平(1978- ),男,湖北荆门人,教授,博士,主要从事国土资源管理与生态环境效应研究。E-mail:pren121680@126.com

  • 基金资助:
    国家自然科学基金项目(41301196)

Ecological value estimation of cultivated land based on the IBIS model: A case study of Chongzhou city

Ping REN, Buting HONG, Weilong MA, Quanzhi YUAN, Jieming ZHOU   

  1. 1. Key Lab of Land Resources Evaluation and Monitoring in Southwest, Ministry of Education, Sichuan Normal University, Chengdu 610066, China
    2. Collaborative Innovation Center for Land Resource Development and Protection, Sichuan Normal University, Chengdu 610066, China
  • Received:2016-07-01 Revised:2016-09-30 Online:2016-12-23 Published:2016-12-23

摘要:

基于成都崇州市耕地实地采样数据和修正的IBIS模型测算数据,对耕地生产有机质、调节大气、涵养水源、土壤保持和净化环境等五种自然生态服务价值进行测算,并与已有相关研究成果进行对比分析。结果表明:① 研究区耕地不同类型的生态服务价值量存在较大差异,由高到低依次为:土壤保持、调节大气、涵养水源、生产有机质、净化环境;② 研究区单位面积耕地生态价值量为29959.5元/hm2,其中土壤保持价值的贡献率最大,占36.35%;③ 与已有研究结果对比分析,由于耕地生态价值内涵界定和测算方法的差异,单位面积耕地生态价值测算结果存在一定差异。研究结果对于科学合理地确定耕地保护的补偿标准和补偿机制构建具有一定的参考指导作用。

关键词: 耕地资源, 生态价值, IBIS模型, 实验观测

Abstract:

The current calculation of cultivated land ecological value mainly focuses on the macro perspective, lacking experimental evaluation and estimation of the value based on fixed position observation at a small scale. This article, based on the sampling experimental data of cultivated land field and the amendatory IBIS (Integrated Biosphere Simulator) model, depicts a series of biophysical and biogeochemical processes of cultivated land crop canopy characteristics, such as the surface process, the carbon and water cycles in ecosystem, and simulates the dynamics of atmosphere-soil-biology. Furthermore, the energy substitution and market value methods have been used to devise the cultivated land ecological valuation model, which was applied to calculate the 5 natural ecosystem service values of cultivated land, comprising production of organic matter, atmospheric regulation, water conservation, soil conservation, and environment purification. The results obtained were compared with the existing research results for further analysis. The results revealed the following: (1) There were differences among different types of cultivated land ecological service values, ranking them in a descending order as follows: soil conservation, atmospheric regulation, water conservation, production of organic matter, and environment purification. Soil fertility conservation comprised the largest part of the soil conservation value, accounting for 30.47% of the cultivated land ecological value; (2) The ecological value of the cultivated land resource per unit area in the experimental filed was 29,959.5 yuan per hectare, with the largest contribution from the soil conservation value, which accounted for 36.35%, followed by the atmospheric regulation value, which accounted for 33.21%; (3) Compared with the existing research results, due to differences in the area of study, research method, and value connotation, the calculated results of the ecological value of cultivated land resource differed in our study, which indicates that the ecological value of the cultivated land resource per unit area differed in each section; however, it was adjacent in per unit area, and the difference was little. The results of the present study have a reference value for analogous research in the future, and also provide a reference for policymaking and implementing compensation standards of cultivated land protection, in addition, it will be helpful in formulating the mechanisms involved in cultivated land ecological value compensation in a scientific manner.

Key words: cultivated land resource, ecological value, IBIS model, experimental observation