城市公园绿地不同植被类型土壤水分相关物理性质  

Water-related Physical Properties of Soil under Different Vegetation Types in Urban Park’ Green Spaces

作　　者：张毅川 田莉 孙杨 秦文珂 火高生 余根 Zhang Yichuan;Tian Li;Sun Yang;Qin Wenke;Huo Gaosheng;Yu Gen(School of Horticulture and Landscape Architecture,Henan Institute of Science and Technology,Xinxiang 453003,Henan,China;Henan Provincial Engineering Center of Horticultural Plant Resource Utilization and Germplasm Enhancement,Xinxiang 453003,Henan,China)

机构地区：[1]河南科技学院园艺园林学院,河南新乡市453003 [2]河南省园艺植物资源利用与种质创新工程研究中心,河南新乡市453003

出　　处：《中国城市林业》2022年第3期42-47,共6页Journal of Chinese Urban Forestry

基　　金：2020年度河南省科技攻关项目(202102310027);2021年度河南省科技攻关项目(212102310841);2021年度河南省科技攻关项目(212102310843)。

摘　　要：绿地土壤是城市雨水渗蓄的主要界面,研究不同植被类型土壤物理性质可以为城市绿地雨水调控提供依据。文章以新乡市5个城市公园绿地作为研究对象,通过布点采样法测定乔草地、灌草地、草地0~15 cm、15~30 cm、30~45 cm土层的土壤物理性质,探讨不同植被类型绿地土壤入渗性能以及与其他土壤物理性质指标之间的关系。结果表明:灌草地土壤容重、土壤比重、土壤孔隙度、土壤紧实度均优于乔草地和草地,草地的土壤含水率高于灌草地和乔草地,乔草地土壤饱和导水率高于草地和灌草地;土壤饱和导水率仅与土壤比重显著相关,与其他土壤指标相关性不显著。因此,在进行绿地建设时适当增加乔灌木种植可以改善土壤结构、提高城市绿地土壤渗水蓄水能力、减少城市内涝的发生。Soil of green land is the main interface to infiltrate and store urban rainwater. The study of soil physical properties of different vegetation types can provide basis for urban green land’s rainwater regulation. The paper takes five green spaces selected from the urban parks in Xinxiang City to determine the soil physical properties at 0-15 cm, 15-30 cm and 30-45 cm soil layers in three vegetation types of arbor-grassland, shrub-grassland and grassland using spot sampling, and discuss the soil infiltration performance of soil under the different types of vegetation and its relationship with other soil physical property indexes. The results show that the soil bulk density, soil specific gravity, soil porosity and soil compactness of shrub-grassland are better than those of arbor-grassland and grassland;the soil water content of grassland is higher than those of shrub-grassland and arbor-grassland;and the soil saturated hydraulic conductivity of arbor-grassland is higher than that of shrub-grassland and grassland, which is only significantly correlated to the specific gravity of the soil, and not significantly correlated to other soil indicators. Therefore, appropriate increase of trees and shrubs planting during the construction of green spaces can improve the soil structure, increase the water infiltration and storage capacity of urban green spaces, and reduce the occurrence of urban waterlogging.

关 键 词：公园绿地 土壤物理性质 入渗性能 植被类型 河南省新乡市 

分 类 号：S731.2[农业科学—林学]