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中国农学通报 ›› 2021, Vol. 37 ›› Issue (2): 154-160.doi: 10.11924/j.issn.1000-6850.casb20200300195

所属专题: 资源与环境 现代农业发展与乡村振兴 农业生态

• 农业信息·科技教育 • 上一篇    下一篇

基于价值当量因子分析的四川省农业生态系统服务价值评价研究

熊鹰()   

  1. 四川省农业科学院农业信息与农村经济研究所,成都 610066
  • 收稿日期:2020-03-11 修回日期:2020-05-20 出版日期:2021-01-15 发布日期:2021-01-14
  • 作者简介:熊鹰,女,1980年出生,重庆人,副研究员,博士,主要从事生态经济与农业可持续发展研究。通信地址:610066 四川省成都市锦江区静居寺路20号附101 四川省农业科学院农业信息与农村经济研究所,Tel:028-84794029,E-mail:54540677@qq.com
  • 基金资助:
    国家自然科学基金项目“农户绿色防控技术采纳行为与激励机制研究”(71603178);四川省社会科学重点研究基地四川县域经济发展研究中心项目“四川省粮食主产县农业绿色发展水平评价与提升路径研究”(xy2020008);四川省农业科学院青年领军人才研究基金项目“四川省农业绿色创新系统效率评价及发展对策研究”(2019LJRC023)

Agro-Ecosystem Service Value of Sichuan Province: An Assessment

Xiong Ying()   

  1. Agricultural Information and Rural Economy Institute, Sichuan Academy of Agricultural Sciences, Chengdu 610066
  • Received:2020-03-11 Revised:2020-05-20 Online:2021-01-15 Published:2021-01-14

摘要:

农业生态系统服务价值不仅关乎民众福祉,也为实现乡村生态振兴奠定坚实基础。开展农业生态系统服务价值评价,旨在为加强农业生态环境保护提供科学依据。以四川省农业生态系统为研究对象,基于单位面积价值当量因子法,结合皮尔生长曲线模型和恩格尔系数计算社会发展阶段系数,测得2000—2017年四川省农业生态系统服务价值的实际值。结果表明:(1)2000—2017年四川省农用地以林地和草地为主,农用地变化表现为耕地、草地和水域面积减少,园地和林地面积增加的趋势。(2)2000—2017年四川省农业生态系统服务价值变化显著,增幅达2.79倍。其中林地的生态服务价值增加量占总增加量的73.64%。(3)2000—2017年四川省农业生态系统各单项服务价值排序基本保持不变,土壤保持、水文调节和维持生物多样性的价值明显高于其他功能,占总价值的比例接近50%。通过计算社会发展阶段系数,修正农业生态系统服务价值的理论评估值,使得评价结果能够更好地反映不同社会发展阶段下农业生态系统的服务价值。

关键词: 农业生态系统服务功能, 价值评估, 当量因子, 社会发展阶段系数, 四川省

Abstract:

Agro-ecosystem service value is related to people’s welfare and lays a solid foundation for the rural ecological revitalization. The research on the agro-ecosystem service value assessment is to provide a basis for strengthening the protection of agro-ecological environment. Taking agro-ecosystem service value of Sichuan Province as a research object, this paper calculated the coefficient of social development stage by combining Peal growth curve model and Engel coefficient based on the equivalent factor method of unit area value, and calculated the value of agro-ecosystem service of Sichuan from 2000 to 2017. The results showed: (1) the agricultural land in Sichuan was dominated by forest land and grass land from 2000 to 2017, the change of agricultural land showed that the area of cultivated land, grass land and water decreased, while the area of garden land and forest land increased; (2) the value of agro-ecosystem service changed significantly from 2000 to 2017 in Sichuan with an increase of 2.79 times, of which the increment of ecological service value of forest land accounted for 73.64% of the total increment; (3) each agro-ecosystem service value sorting remained unchanged from 2000 to 2017 in Sichuan, the values of soil conservation, hydrological regulation and biodiversity maintenance were obviously higher than other functions, accounting for nearly 50% of the total value. By calculating the coefficient of social development stage, the theoretical evaluation value of agro-ecosystem service value was modified, so that the evaluation result can better reflect agro-ecosystem service value in different social development stages.

Key words: agro-ecosystem service function, value evaluation, equivalent factor, coefficient of social development stage, Sichuan Province

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