Evaluation on Ecological Benefits of Returning Farmland to Forest in Baoji City

XU Yuxia

doi:10.13961/j.cnki.stbctb.2017.06.042

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Evaluation on Ecological Benefits of Returning Farmland to Forest in Baoji City

- Evaluation on Ecological Benefits of Returning Farmland to Forest in Baoji City
- Bulletin of Soiland Water Conservation Vol. 37, Issue 6, Pages: 248-255(2017)
- 作者机构：
  
  宝鸡文理学院陕西省灾害监测与机理模拟重点实验室,陕西,宝鸡,721013
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2017.06.042
  CLC：
- Published：2017
- 稿件说明：
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XU Yuxia. Evaluation on Ecological Benefits of Returning Farmland to Forest in Baoji City[J]. Bulletin of Soiland Water Conservation, 2017, 37(6): 248-255.
DOI：

XU Yuxia. Evaluation on Ecological Benefits of Returning Farmland to Forest in Baoji City[J]. Bulletin of Soiland Water Conservation, 2017, 37(6): 248-255. DOI： 10.13961/j.cnki.stbctb.2017.06.042.

摘要

[目的

]

对陕西省宝鸡市退耕还林工程产生的生态效益进行评价和分析，为相关生态研究提供参考依据。[方法

]

以1999-2015年宝鸡市退耕还林面积等数据为依据，参照《退耕还林工程生态效益监测评估技术与管理规范》附录中《退耕还林工程生态效益实物量评估公式及参照设置》对宝鸡市退耕还林工程在保护水源、保育土壤、固碳制氧、净化环境、改善小气候和保护生物多样性方面产生的生态效益进行计算，并采用影子工程法、影子价格法等方法计算宝鸡市退耕还林工程的生态价值。[结果

]

1999-2015年宝鸡市退耕还林生态效益总价值为1.06×10

万元，其中保护水资源和固碳制氧贡献最大，分别所占比例为36.8%和27%，保护生物多样性次之，贡献率为22.8%，改善小气候、保育土壤和净化环境价值贡献率分别为12.2%，0.8%和0.4%。[结论

]

退耕还林工程在宝鸡市水源涵养和改善环境作用明显，对于该区的水资源保护和空气质量的改善具有重要的促进作用。

Abstract

[Objective] In order to understand the ecological benefits of returning farmland to forest in Baoji City

and to provide reference for related ecological research.[Methods] Based on the area data of returning farmland to forest in Baoji City

Shaanxi Province from 1999 to 2015

this paper computed the ecological benefits arising from the protection of water

conservation of soil

carbon sequestration

purification of the environment

improvement of microclimate and conservation of biological diversity

in reference to the appendix of ecological benefit physical quantity evaluation formula and reference setting for returning farmland to forest project in ecological benefit monitoring and assessment technique and management norm of returning farmland to forest project.And the ecological value of returning farmland to forest project was also calculated using the shadow project and shadow price method in Baoj City.[Results] The total value of forest ecological benefit from 1999 to 2015 in Baoji City was 1.06×1010 RMB

in which the protection of water resources and carbon sequestration & oxygen production contributed the most

the proportions were 36.8% and 27%. The conservation of biological diversity contributed 22.8% of it; The improvement of the microclimate

soil conservation and environmental purification value contributed 12.2%. 0.8% and 0.4% of it

respectively.[Conclusion] It can be seen that the project of returning farmland to forests plays an important role in water conservation and improvement of the environment in Baoji City. And it is of great significance for the protection of water resources and the improvement of air quality in this area.

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