常文科, 李成杰, 郭晓明,等.采煤沉陷区林地优先流现象下的土壤特性分布特征研究[J].河南理工大学学报（自然科学版）,2020,39(6):51-57.

CHANG W K, LI C J, GUO X M, et al.Research on the distribution characteristic of soil properties under preferentialflow of the forestland in the coal mining subsidence area[J].Journal of Henan Polytechnic University(Natural Science) ,2020,39(6):51-57.

采煤沉陷区林地优先流现象下的土壤特性分布特征研究

常文科1, 李成杰1, 郭晓明1, 徐小涛1, 朱希望1, 赵福玲2

1.河南理工大学 资源环境学院，河南 焦作 454000;2.焦作市城乡一体化示范区环境监察大队，河南 焦作 454000

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服酶活性高了 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。

关键词:采煤沉陷区;林地;优先流;染色示踪剂;土壤特性

doi:10.16186/j.cnki.1673-9787.2020.6.8

基金项目: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 ）

收稿日期:2020/03/09

修回日期:2020/04/22

出版日期:2020/11/15

Research on the distribution characteristic of soil properties under preferentialflow of the forestland in the coal mining subsidence area

CHANG Wenke1, LI Chengjie1, GUO Xiaoming1, XU Xiaotao1, ZHU Xiwang1, ZHAO Fuling2

1.College of Resource and Environment， Henan Polytechnic University， Jiaozuo  454000 ， Henan，China;2.Environmental Supervision Group，Jiaozuo Demonstration Area of Urban and Rural Integration，Jiaozuo  454000，Henan，China

Abstract: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.

Key words:coal mining subsidence area;forestland;preferential flow;dye tracer;soil property

采煤沉陷区林地优先流现象下的土壤特性分布特征研究_常文科.pdf