南瓮河湿地保护区土壤有机碳、含水率和pH的变化分布  

Distribution of the Variations of the Soil Organic Carbon,Moisture Content,and PH in Nanweng River Wetland Reserve

作　　者：晏鸣霄 夏振清 王攀婷 孟瑶[1] 于兵[1] 

机构地区：[1]东北林业大学野生动物资源学院,哈尔滨150040

出　　处：《森林工程》2015年第4期22-25,共4页Forest Engineering

基　　金：黑龙江省教育厅科学技术研究项目(12523012);东北林业大学大学生创新性实验计划项目(201310225114)

摘　　要：本文对大兴安岭地区南瓮河湿地保护区不同深度和海拔土壤的有机碳含量、含水率和pH进行了研究。结果表明：不同深度的土壤有机碳含量差异显著，在0～10cm土层显著大于40—50cm土层。土壤含水率在0～10cm土层达到最大值，显著大于其它四个土壤剖面，且在30—40cm土层中含水量达最低值88．83％，但除表层外其它四个土壤剖面土壤含水率相差甚微。不同深度土壤pH值的结果相差不大，均在4～5之间变化，呈弱酸性。三者随海拔高度的变化规律不明显。In this paper, the organic carbon content, moisture content, and pH of soil at different depths and altitudes in Nan- weng River wetland reserve in the Great Xing＇an Mountains were studied. The result showed that there were significant differences in soil organic carbon content at different depths, and the soil organic carbon in 0 - 10 cm soil layer was higher than that in 40 -50 cm soil layer. The soil moisture content reached the maximum at the depth of 0 - 10 cm which was significantly greater than other four soil layers, and the soil moisture content reached the minimum value of 88.83% at the depth of 30 -40 cm, but there were little differ- ence in soil moisture content among other four soil layers except 0 - 10 cm soil layer. There were few differences in pH between the different soil depths. The value of pH was 4 - 5, which showed that the soil was weakly acid. The changes of the above three with the increase of altitudes was not obvious.

关 键 词：南瓮河湿地 土壤有机碳 含水率 PH 空间分布 

分 类 号：S153.6[农业科学—土壤学]