摘要
选取1、4和15年的脐橙种植林以及针阔混交林为研究对象,对不同林地枯落物持水性能、土壤蓄水能力、入渗性能、土壤有机碳等参数进行测定,并结合主成分分析法研究脐橙种植对水源涵养能力的影响。结果表明:1)针阔混交林枯落物有效拦蓄量分别为4年和15年脐橙林的166.87倍和61.50倍,脐橙种植对枯落物水文效应影响显著。2)不同林地土壤层总孔隙度变化范围为43.92%~60.13%,3种不同种植年限脐橙林土壤容重均值较针阔混交林分别提高了2.17%,11.76%和20.74%,随种植年限增加有明显增加趋势。3)1年脐橙林土壤初渗速率、稳渗速率较针阔混交林分别下降了20.70%和55.00%,脐橙林土壤下渗速率随种植年限增加而下降。土壤下渗速率、容重是影响当地水源涵养能力的主要因子。
We selected one,fourteen,and fifteen years old C.sinensis and neighboring broadleaf mixed forests as plots and operated experiments to measured soil physical properties and water-holding capacity of litter and soil.The principal component analysis was carried out to analyze study the effect of C.sinensis cultivation on water conservation capacity.The results showed as follows.Firstly,the effective storage capacity of litter for broadleaf mixed forest was 166.87 times of 4a C.sinensis and and 61.50 times of 15a C.sinensis.Secondly,the variation of total porosity was ranged from 43.92%to 60.13%.Compared with broadleaf mixed forests,the average soil bulk densities of C.sinensis at three different planting years increased by 2.17%,11.76%,and 20.74%,respectively.Thirdly,the Soil initial permeation rate and soil stable permeation rate for 1a C.sinensis were 20.70%and 55.00%lower than the broadleaf mixed forests,respectively.The soil infiltration rate would be decrease with increased cultivationsoil.The infiltration rate and soil bulk density were important factors that determinine the water conservation capacity.
作者
盛储望
郑博福
朱锦奇
华涛
谢泽阳
朱元皓
艾彪
SHENG Chuwang;ZHENG Bofu;ZHU Jinqi;HUA Tao;XIE Zeyang;ZHU Yuanhao;AI Biao(Key Laboratory of Poyang Lake Environment and Resource Utilization,Ministry of Education,Nanchang University,Nanchang 330031,China;School of Resources Environmental and Chemical Engineering,Nanchang University,Nanchang 330031,China;Jiangxi Institute of Ecological Civilization,Nanchang University,Nanchang 330031,China)
出处
《南昌大学学报（理科版）》
CAS
北大核心
2020年第4期380-387,共8页
Journal of Nanchang University(Natural Science)
基金
科技部重大研发计划课题(2017YFC0505601)。
关键词
水源涵养
赣南丘陵区
脐橙
枯落物
土壤
water conservation
Southern Hilly Region of Jiangxi
C.sinensis
litter
soil
作者简介
盛储望(1994-),男,硕士生;通信作者:郑博福(1973-),男,教授。E-mail:bfzhen@ncu.edu.cn。
