文献类型：期刊文献

中文题名：新余市不同功能区樟树土壤水分特征研究

英文题名：Study on Soil Moisture Characteristics of Cinnamomum camphora in Different Functional Areas of Xinyu City

作者：肖斌[1] 罗蓉[2] 董星宇[3] 段毅[1]

第一作者：肖斌

机构：[1]中国林业科学研究院亚热带林业实验中心,江西分宜336600;[2]新余钢铁集团有限公司,江西新余338000;[3]宜春市袁州区林业局,江西宜春336000

年份：2023

卷号：35

期号：5

起止页码：45-51

中文期刊名：江西农业学报

外文期刊名：Acta Agriculturae Jiangxi

收录：CSTPCD

语种：中文

中文关键词：新余市;樟树;城市功能区;土壤水分特征

外文关键词：Xinyu City;Cinnamomum camphora;Urban functional area;Soil moisture characteristics

分类号：S714.2

摘要：为了解樟树在城市不同功能区的土壤水分特征,为城市园林绿化樟树管理养护提供参考依据,通过环刀法选取了新余市不同功能区樟树土壤,对土壤容重、含水率、孔隙度、持水性和渗透性进行了研究,并分析了土壤水分因子间的相关性。结果表明:各功能区樟树土壤容重总体偏大,介于1.34~1.59 g/cm~3,土壤含水率介于16.0%~23.2%。从土壤容重、孔隙度、持水性看,风景区表现为容重小、孔隙度高、持水性好,居住区表现相对较差。各功能区樟树土壤入渗前期快,后期逐渐趋于平稳,0~20 cm土层土壤渗透速率快于20~40 cm土层的,Philip模型拟合土壤入渗特征效果更好。相关性分析表明,土壤最大持水量与土壤容重存在极显著负相关关系、与土壤总孔隙度存在极显著正相关关系,相关系数分别为-0.922、0.981;土壤非毛管孔隙度与土壤初渗率、平均入渗率存在极显著正相关关系,相关系数分别为0.779、0.778;土壤初渗率与平均入渗率之间存在极显著的正相关关系,相关系数为0.925。综上,新余市不同功能区樟树土壤总体压实度偏高,风景区樟树土壤结构相对较好。
In order to understand the soil moisture characteristics of C.camphora in different functional areas of the city and provide reference for the management and maintenance of urban landscaping camphor trees,the soil bulk density,water content,porosity,water holding capacity and permeability of camphor trees in different functional areas of Xinyu City were studied by ring knife method,and the correlation between soil water factors was analyzed.The results showed that the soil bulk density of C.camphora in each functional area was generally large.The bulk density ranged from 1.34 g/cm3 to 1.59 g/cm3,and the soil moisture content ranged from 16.0%to 23.2%.From the perspective of soil bulk density,porosity and water holding capacity,the scenic area showed small bulk density,high porosity and good water holding capacity,while the residential area showed relatively poor performance.The infiltration rate of camphor soil in each functional area was fast in the early stage and gradually stabilized in the later stage.The infiltration rate of 0~20 cm soil layer was faster than that of 20~40 cm soil layer.The Philip model fitted the soil infiltration characteristics better.Correlation analysis showed that there was a significant negative correlation between soil maximum water holding capacity and soil bulk density,and a significant positive correlation between soil maximum water holding capacity and soil total porosity.The correlation coefficients were-0.922 and 0.981,respectively.There was a significant positive correlation between soil non-capillary porosity and soil initial infiltration rate and average infiltration rate,and the correlation coefficients were 0.779 and 0.778 respectively.There was a significant positive correlation between soil initial infiltration rate and average infiltration rate,and the correlation coefficient was 0.925.In conclusion,the overall compaction degree of C.camphora soil in different functional areas of Xinyu City is high,and the soil structure of C.camphora in scenic spots is relatively good.