GUO Chao, SUN Baoping, FANG Sichao, et al. Evaluation on Ecological Benefit of Returning Farmland to Forestland Projects in Danzhou City[J]. Bulletin of Soiland Water Conservation, 2015, 35(4): 308-313.
DOI:
GUO Chao, SUN Baoping, FANG Sichao, et al. Evaluation on Ecological Benefit of Returning Farmland to Forestland Projects in Danzhou City[J]. Bulletin of Soiland Water Conservation, 2015, 35(4): 308-313. DOI: 10.13961/j.cnki.stbctb.2015.04.054.
Evaluation on Ecological Benefit of Returning Farmland to Forestland Projects in Danzhou City
[Objective] The ecological benefit of returning farmland to forestry projects in Danzhou City
Hainan Pvovince was to evaluated in order to provide a basis for eco-benefit assessment of returning farmland to forestland project in China. [Methods] Based on the achievements of returning farmland to forestland project in Danzhou City that finished in 2012
the following six aspects of the water conservation
soil and water conservation
carbon sequestration oxygen
purifying environment
improving the microclimate and protecting the biodiversity of Danzhou City project on returning farmland to forest vegetation were evaluated. The shadow engineering method and the market price method were used to carry on the physical and value assessment
analyze the forest ecological benefit of returning farmland in nearly nine years
and combine the Engel coefficient with the Pearson curve together to modify the evaluation results. [Results] By 2012
the ecological value of returning farmland to forestland project of Danzhou City was up to 2.22 billion yuan. The most important value is protection of water resources
1.76 billion yuan
accounting for 79.5% of total ecological value. The following is carbon sequestration oxygen
238 million yuan
accounting for 10.7% of total ecological value. [Conclusion] The ecological benefit brought by the implementation of returning farmland to forestland project of Danzhou City is very significant
and effectively control soil and water loss in Danzhou City.