深圳城市绿地土壤水库特征及影响因素  

Investigation on Soil Water Reservoir Properties and Its Influencing Factors in Urban Green Spaces of Shenzhen City

作　　者：黄晖 毕舒贻 字肖萌[3] 廖耿强 温暖玲 叶子驹 茹正忠 HUANG Hui;BI Shuyi;ZI Xiaomeng;LIAO Gengqiang;WEN Nuanling;YE Ziju;RU Zhengzhong(Shenzhen Zhenheli Ecology&Environment Co.,Ltd.,Shenzhen,Guangdong 518052,China;Shenzhen Zhenheli Ecology&Environment Research Center,Shenzhen,Guangdong,518052,China;Laboratory for Biogeochemistry,Public Technology Service Center,Xishuangbanna Tropical Botanical Garden,Chinese Academy of Sciences,Kunming,650032,China;Urban Administrative and Law Enforcement Bureau of Longgang District,Shenzhen,Guangdong 518116,China)

机构地区：[1]深圳市真和丽生态环境股份有限公司,广东深圳518052 [2]深圳市真和丽生态环境科技研发中心,广东深圳518052 [3]中国科学院西双版纳热带植物园公共技术服务中心生物地球化学实验室,昆明650023 [4]龙岗区城市管理行政执法局,广东深圳518116

出　　处：《水土保持研究》2020年第1期146-150,160,共6页Research of Soil and Water Conservation

基　　金：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)

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。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.

关 键 词：城市绿地 土壤水库特征 土壤物理特性 深圳 

分 类 号：S152.7[农业科学—土壤学]