摘要
为了研究采煤沉陷区林地优先流现象对土壤特性分布特征造成的影响,通过野外采样和染色示踪试验,研究焦作韩王矿沉陷区林地不同坡位优先路径的土壤特性。结果表明:采煤沉陷区林地不同坡位土壤均具有明显的优先流现象,且以中坡土壤优先流的发生程度为最高;沉陷区优先路径下的土壤放线菌数量在上坡与中坡之间、上坡与下坡之间以及土壤磷酸酶活性在中坡和下坡之间均存在显著性差异(p<0.05);与土壤基质相比,优先路径下的上坡土壤脲酶活性高了8.66 mg/100 g,中坡细菌数量高了86%,下坡放线菌数量高了70%,中坡和下坡电导分别低了27%和12%。上述特征反映了采煤沉陷区优先流现象对土壤特性的分布造成了强烈的影响。
Through field sampling and dye tracer experiments,the soil properties of preferential flow paths at the different slope position in the Hanwang coal mining subsided forest of Jiaozuo city were studied.The results showed that the soil at different slope position of forestland in coal mining subsidence area had obvious preferential flow phenomenon,and the occurrence degree of soil preferential flow was the highest in the middle slope;the number of soil actinomycetes under the preferential pathways in the settlement area was significantly different between the upper slope and the middle slope,between the upper slope and the lower slope,and the soil phosphatase activity was significantly different between the middle slope and the lower slope(P<0.05);compared with the soil matrix,the soil urease activity in the upper slope was increased by 8.66 mg/100 g,the bacteria number in the middle slope was increased by 86%,the actinomycetes quantity was increased by 70%,and the electrical conductivity of the middle slope and the downhill slope were 27%and 12%lower respectively.The above characteristics reflected that the preferential flow phenomenon in mining subsidence area had a strong influence on the distribution of soil characteristics.
作者
常文科
李成杰
郭晓明
徐小涛
朱希望
赵福玲
CHANG Wenke;LI Chengjie;GUO Xiaoming;XU Xiaotao;ZHU Xiwang;ZHAO Fuling(College of Resource and Environment,Henan Polytechnic University,Jiaozuo 454000,Henan,China;Environmental Supervision Group,Jiaozuo Demonstration Area of Urban and Rural Integration,Jiaozuo 454000,Henan,China)
出处
《河南理工大学学报（自然科学版）》
CAS
北大核心
2020年第6期51-57,共7页
Journal of Henan Polytechnic University（Natural Science）
基金
国家自然科学基金资助项目(41502241,U1704241)
河南省科学技术研究重点项目(13A610319,14A610015)。
关键词
采煤沉陷区
林地
优先流
染色示踪剂
土壤特性
coal mining subsidence area
forestland
preferential flow
dye tracer
soil property
作者简介
第一作者:常文科(1994—),男,河南新郑人,硕士生,主要从事环境地质方面的研究工作,E-mail:734097558@qq.com;通讯作者:郭晓明(1982—),男,河南焦作人,博士,副教授,主要从事矿区生态恢复和地下水污染防治方面的教学和研究工作,E-mail:guoxiaoming@hpu.edu.cn。
