摘要
以环刀法采样,测试和分析南平市建阳城区不同土地利用类型土壤渗透系数和其他基本理化性质(孔隙率、含水率、容重和pH值等指标)的空间分布差异以及相互关系。结果表明:南平市建阳中心城区土壤渗透系数范围为1.06×10^(-6)~1.42×10^(-3) cm/s,均值为3.33×10^(-4) cm/s。其中98.36%的土壤样品属于绿化带土壤饱和渗透系数适宜范围(3.47×10^(-4)~1.00×10^(-3) cm/s)。因此,研究区土壤渗透性能较适宜。从不同土地利用类型的土壤渗透系数大小对比得出,新城区土壤渗透系数中农业区>居民区>交通区>公园区>工业区>商业区>荒地;而老城区则为荒地>工业区>交通区>商业区>居民区>公园区>农业区。研究区土壤含水率、孔隙度、容重、渗透系数和pH值范围分别为10.68%~51.00%、35.70%~63.30%、1.13~1.78 g/cm3、1.06×10^(-6)~1.42×10^(-3) cm/s、5.5~7.5。其中,土壤孔隙度与土壤渗透系数呈极显著正相关,其他基本理化指标也在不同程度上影响着土壤渗透性能。本研究有利于全域海绵城市建设背景下南平市土壤基本理化性质的资料累积和土壤结构改良,以及推进和深化南平市海绵城市建设,也对类似区域海绵城市建设提供科学参考。
In this paper,the spatial distribution difference and relationship of soil permeability coefficient and other basic physical and chemical properties(such as porosity,moisture content,bulk density and pH)of different land use types were tested and analyzed by the ring knife method.The results show that the range of soil permeability coefficient in Jianyang central urban area of Nanping city is 1.06×10^(-6)~1.42×10^(-3) cm/s,mean 3.33×10^(-4) cm/s.98.36%of the soil samples belong to the appropriate range of the saturated permeability coefficient of the green belt soil(3.47×10^(-4)~1.00×10^(-3) cm/s),so the soil permeability in the study area is appropriate.From the comparison of soil permeability coefficients of different land use types,it can be concluded that the soil permeability coefficients in the new urban area are agricultural area>residential area>traffic area>park area>industrial area>commercial area>wasteland;The old urban area is wasteland>industrial area>traffic area>commercial area>residential area>park area>agricultural area.The soil water content,porosity,bulk density,permeability coefficient and pH value in the study area are 10.68%~51.00%,35.70%~63.30%,1.13~1.78 g/cm3,1.06×10^(-6)~1.42×10^(-3) cm/s、5.5~7.5.Among them,soil porosity and soil permeability coefficient are significantly positive correlation,and other basic physical and chemical indicators also affect soil permeability to varying degrees.This study is conducive to the accumulation of data on the basic physical and chemical properties of soil in Nanping City and the improvement of soil structure in the context of the construction of a sponge city in the whole region,as well as the promotion and deepening of the construction of a sponge city in Nanping city,and also provides a scientific reference for the construction of sponge cities in similar regions.
作者
唐心
李国平
胡家朋
苏丽鳗
吴晨浩
陈杰
叶宏萌
TANG Xin;LI Guoping;HU Jiapeng;SU Liman;WU Chenhao;CHEN Jie;YE Hongmeng(Fujian Provincial Key Laboratory of Eco-Industrial Green Technology,School of Ecology and Resource Engineering,Wuyi University,Wuyishan,Fujian 354300;Shanghai Municipal Engineering Design Institute(Group)Co,Ltd,Shanghai 200092)
出处
《武夷学院学报》
2023年第6期31-36,共6页
Journal of Wuyi University
基金
国家重点研发计划(2021YFC3001400)
福建省自然科学基金(2020J05218)
福建省本科高校教育教学改革研究项目(FBJG20210044)
南平市科技项目(2022ZXHZ002)。
关键词
海绵城市
渗透系数
理化性质
土壤
南平市建阳区
sponge city
infiltration coefficient
physical and chemical properties
soil
Jianyang District of Nanping City
作者简介
唐心(2002-),女,汉族,在读本科生,主要从事环境生态工程的研究;通讯作者:叶宏萌(1984-),女,汉族,副教授,主要从事流域环境保护与环境地球化学的研究。
