煤矿塌陷地不同复垦方式下土壤呼吸特征  

Soil Respiration Characteristics of Different Reclamation Mode in Collapsed Coal Mine Area

作　　者：赵魁[1] 张治国[1,2] 杨清 安士凯[2] 张文影 

机构地区：[1]安徽理工大学地球与环境学院,安徽淮南232001 [2]淮南煤炭工程技术研究院生态环境研究室,安徽淮南232001

出　　处：《安徽理工大学学报（自然科学版）》2012年第3期41-45,共5页Journal of Anhui University of Science and Technology:Natural Science

基　　金：淮南矿业集团2011年科学技术资助项目

摘　　要：采用LI-8100土壤碳通量测量系统,测定淮南市大通煤矿塌陷地两种复垦区(煤矸石充填、化工垃圾充填)及非复垦对照区典型植被下土壤呼吸强度,研究不同复垦方式下非生长季土壤CO2排放特征。结果表明土壤呼吸强度大小依次为:煤矸石复垦区<化工垃圾复垦区<对照区,两复垦区与对照区相比土壤呼吸差异均显著,但两复垦区间土壤呼吸强度差异不明显;各区土壤呼吸的主导因素不同,煤矸石复垦区的显著影响因子是土壤温度,化工垃圾复垦区的显著影响因子是土壤温度和空气湿度,复垦区整体土壤呼吸受气温影响显著,将复垦区整体对气温作曲线拟合,得到的二次方程可以解释69.1%的土壤呼吸变异。Soil respiration intensity of typical vegetation types was measured in two reclamation areas(Coal gangue filling,chemical waste filling) of the Subsided Datong Coal Mining Area and the control area in Huainan with Li-8100 carbon flux recorder,characteristics of soil respiration in different reclamation areas in non-growing season were researched.The results indicated that the order of the soil respiration rate displayed from inferior to superior was Gangue Reclamation Area,Chemical Garbage Reclamation Area and Control Area,Analysis of variance showed that soil respiration intensity of two reclamation areas and that of the control area was significantly different,but the soil respiration intensity between the two reclamation areas was of no obvious;The dominant factors of soil respiration in each area are different: the significant impact factor of Coal gangue filling area is soil temperature,and that of chemical waste filling area are soil temperature and the relative humidity of the air,the soil respiration of the whole reclamation area affected by temperature is remarkable.Merging the two reclamation areas,the best fitting curve of the whole reclamation area was quadratic equation,which can explain the 69.1% of soil respiration.

关 键 词：煤矿 复垦方式 土壤呼吸 

分 类 号：S154.4[农业科学—土壤学]