露天煤矿复垦地土壤呼吸的日变化研究——以平朔安太堡露天煤矿排土场为例  

The Daily Changes Study of Soil Respiration to Opencast Coal Mine Reclamation——In Case of the Dump of Antaibao Opencast Coal Mine

作　　者：卢宁[1] 李晋川[2] 郭春燕[2] 王文英[2] 杨生权[2] 王宇宏[2] 

机构地区：[1]山西农业大学资源与环境学院,山西太谷030801 [2]山西省生物研究所,山西太原030006

出　　处：《山西农业科学》2010年第4期52-54,64,共4页Journal of Shanxi Agricultural Sciences

基　　金：国家"十一五"科技支撑计划(2006BAC09B02-6);山西省重大科技攻关项目(2006031099-01-04)

摘　　要：采用Li-6400便携式光合作用测量系统连接Li-6400-09土壤呼吸室对安太堡露天煤矿排土场土壤呼吸速率进行了测定。结果表明,该地区土壤呼吸日变化比较明显,呈现单峰型曲线,最大值出现在13:00—15:00,与土壤温度最大值同步,稍滞后于空气温度最大值;土壤湿度与土壤呼吸的相关性较差,在一定范围内,土壤呼吸随土壤湿度的升高而升高。Using a Li-6400 portable photosynthesis measuring system connected with Li-6400-09 soil respiration chamber, soil respiration rate of Antaibao opencast coal mine waste dump were determined. The results indicate that the daily changes of soil respiration more striking, showing a single peak curve, the maximum appears in 13：00-15：00, and it is simultaneous with the soil maximum temperature value, slightly lagging behind the max of air temperature. The correlation of soil moisture and soil respiration is poor, within a certain range soil respiration increases with the increases of soil moisture.

关 键 词：安太堡露天煤矿排土场 土壤呼吸 日变化 土壤温度 空气温度 土壤湿度 

分 类 号：S154[农业科学—土壤学]