Sun Wenjing, Li Huaien, Liu Qichao, et al. Benefits of Rainwater Utilization in Urban Sponge Community—A Case Study of Sponge Community Construction in Guyuan City[J]. Bulletin of Soiland Water Conservation, 2020, 40(1): 170-175.
DOI:
Sun Wenjing, Li Huaien, Liu Qichao, et al. Benefits of Rainwater Utilization in Urban Sponge Community—A Case Study of Sponge Community Construction in Guyuan City[J]. Bulletin of Soiland Water Conservation, 2020, 40(1): 170-175. DOI: 10.13961/j.cnki.stbctb.2020.01.025.
Benefits of Rainwater Utilization in Urban Sponge Community—A Case Study of Sponge Community Construction in Guyuan City
and social benefits of rainwater utilization at urban sponge community were evaluated and the cost comparative analysis were conducted in order to establish a reference for the evaluation of the construction of a sponge community.[Methods] The second batch of six sponge communities was obtained as the research object; this was sourced from the Southwest New District of Guyuan City in Ningxia Hui Autonomous Region. The water balance method
alternative engineering method
shadow engineering method
market value method
carbon tax method and afforestation cost method were used to generate the sponge community. The rainwater resource utilization
carbon sequestration
oxygen reduction
noise reduction
storage runoff
culture and education
etc
the ten benefits in three categories were quantitatively calculated. Further
the cost-benefit ratio was used for the static and dynamic cost-benefit analysis.[Results] The total benefit of the six sponge communities in the southwest of the New District of Guyuan City was 2.91×105 yuan/year. Moreover
the benefits of the rain garden
sinking green land
and planting grass were 1.03×105
7.99×104
and 6.15×104 yuan/year
respectively. The economic
environmental and social benefits accounted for 22.84%
76.89%
and 0.27%
respectively.[Conclusion] Therefore
the use of rainwater in the sponge community has noteworthy investment benefits. Accordingly
the construction of the sponge community in Guyuan City has produced good economic
environmental
and social benefits
which deserves further research and promotion.
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references
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