HUANG Hui,BI Shuyi,ZI Xiaomeng,et al.Investigation on Soil Water Reservoir Properties and Its Influencing Factors in Urban Green Spaces of Shenzhen City[J].Research of Soil and Water Conservation,2020,27(01):146-150,160.
深圳城市绿地土壤水库特征及影响因素
- Title:
- Investigation on Soil Water Reservoir Properties and Its Influencing Factors in Urban Green Spaces of Shenzhen City
- 文章编号:
- 1005-3409(2020)01-0146-05
- 分类号:
- S152.7
- 文献标志码:
- A
- 摘要:
- 研究深圳城市绿地土壤水库特征及其相关影响因素,为海绵城市建设和城市绿地水土保持提供参考。针对不同类型绿地(交通、公园、小区)在不同深度土层(0—30 cm,30—60 cm)分析了土壤水库特征,并探究了土壤理化性质对土壤水库特征的影响。结果表明:深圳城市绿地土壤死库容及滞洪库容较低,但有效库容较大,约占总库容的68%,这表明深圳城市绿地土壤有较大的水分存蓄空间; 交通绿地的总库容及死库容显著高于小区绿地、公园绿地(p<0.05),公园绿地死库容显著高于小区绿地(p<0.05),说明不同类型绿地的不同利用方式可影响绿地土壤死库容; 深圳城市绿地土壤压实较为严重,透气性能差,非毛管孔隙度较低; 土壤容重、孔隙度、毛管孔隙度、非毛管孔隙度、砂粒含量显著影响土壤水库,改善土壤理化性质能显著提高土壤水库库容; 深圳绿地土壤死库容较低,有效库容较大,未来可考虑降低土壤压实、提高砂粒含量、改良土壤理化性质来大幅度提高土壤水库库容。
- Abstract:
- To investigate soil water reservoir properties and its influencing factors in urban green spaces of Shenzhen City, and to provide references for the construction of sponge cities and soil-water conservation of the city, soil water reservoir properties and its basic physicochemical properties of different green spaces(transportation, garden, resident)in different soil layers(0—30 cm, 30—60 cm)were determined based on the national standard. The fixed storage and detention capacity of urban green space in Shenzhen was quite low. However, effective storage showed the 68% of total reservoir capacity, which means a big potential in water storage. The transportation green space showed the significant difference from garden space and residential space in total reservoir capacity and fixed storage; significant difference of fixed storage between garden space and residential space also can be seen, which means that the using ways can affect the fixed storage. The soil water reservoir properties in urban green spaces of Shenzhen was very poor, therefore, these results can help decrease the soil compaction degree and increase sand contents to improve soil water reservoir properties.
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备注/Memo
收稿日期:2019-01-15 修回日期:2019-03-03
资助项目:深圳市科技创新委员会项目“城市绿地系统低影响开发关键技术研发”(JSGG20170412145935322)
第一作者:黄晖(1992—),男,江西赣州人,硕士,工程师,研究方向为海绵城市技术研发与推广。E-mail:huanghui.hdsz@foxmail.com
通信作者:茹正忠(1957—),男,广东深圳人,学士,教授级高工,主要从事海绵城市概念与技术研究。E-mail:1352863103@qq.com