屋面绿化卷材根系层土壤温度变化特征

生态学杂志

屋面绿化卷材根系层土壤温度变化特征

刘洋¹,孙海龙^2**,李绍才^1,3,冯甦¹

（¹四川大学生命科学学院，成都 610064； ²四川大学水力学与山区河流开发保护国家重点实验室，成都 610064； ³四川沃尔宜环保科技有限公司，成都 610064）

出版日期:2015-08-10 发布日期:2015-08-10

Variation of soil temperature in root layer under roof greening coiled material.

LIU Yang¹, SUN Hai-long^2**, LI Shao-cai^1,3， FENG Su¹

(¹College of Life Sciences, Sichuan University, Chengdu 610064, China; ²State Key Labortory of Water Resource and Hydropowpr, Sichuan University, Cheng du 610064, China; ³Sichuan Woeryi Bioenvironmental Engineering Co., Ltd., Chengdu 610064, China)

Online:2015-08-10 Published:2015-08-10

摘要/Abstract

摘要： 根据3种厚度屋面绿化卷材根系层土壤温度、自然条件下的土壤温度和附近气象站大气温度观测资料，采用对比分析、线性回归等方法，对不同屋面绿化卷材根系层土壤温度的变化特征进行了研究。结果表明：屋面绿化卷材根系层土壤温度年变化规律与大气温度年变化规律基本一致；卷材具有一定的隔热保温作用，且随着薄膜厚度的增加，绿化卷材保温隔热效果越明显；不同型号卷材根系层土壤温度的日变幅随薄膜厚度的增加而减小；根系层土温日变幅与厚度关系可拟合成指数函数；不同厚度屋面卷材根系层土壤温度同大气温度之间均存在极显著的线性关系。

关键词: 非一致性, 枯水期, 水文分析与计算, 二阶矩变异, 最低通航水位, 综合历时曲线法

Abstract:

According to the observing data of soil temperature in root layer under three thickness of roof greening coiled materials, soil temperature under natural conditions, and air temperature, we studied the variation characteristics of soil temperature in root layer under different roof greening coiled materials by the methods of comparative analysis and linear regression. The results showed that the annual variation of soil temperature in root layer was in accord with that of air temperature. The roof coiled material had the function of insulation, and the insulation effect on soil temperature of root layer was enhanced with the increase of film thickness. The diurnal change amplitude of temperature decreased with the increase of film thickness, which could be fitted as an exponential function. Moreover, there was an extremely significant linear relationship between air temperature and soil temperature in root layer under roof greening coiled materials.

Key words: second-moment variability., dry seasons, lowest navigable water level, inconsistency, hydrological analysis and calculation, synthetic duration curve design method

刘洋1,孙海龙2**,李绍才1,3,冯甦1. 屋面绿化卷材根系层土壤温度变化特征[J]. 生态学杂志.

LIU Yang1, SUN Hai-long2**, LI Shao-cai1,3， FENG Su1. Variation of soil temperature in root layer under roof greening coiled material.[J]. cje.