三江平原典型环型湿地不同埋藏深度枯落物的热值研究  

The Calorific Values of Litters in Different Depths of Annular Wetland in the Sanjiang Plain

作　　者：蒋海东[1] 杨青[1] 吕宪国[1] 高俊琴[2] 

机构地区：[1]中国科学院东北地理与农业生态研究所 [2]中国科学院地理科学与资源研究所,北京100101

出　　处：《干旱区资源与环境》2007年第3期130-133,共4页Journal of Arid Land Resources and Environment

基　　金：中国科学院知识创新工程项目(KZCX3-SW-NA-01)资助

摘　　要：本文研究了埋藏在不同深度的3种典型湿地植物枯落物的热值在一个生长季内的变化特征,并初步探讨了其影响因素。研究表明小叶章和漂筏苔草枯落物热值呈现相同的变化特征:0-10cm、10-20cm、20-30cm三个层次两种植物的枯落物热值随着分解的进行,逐渐下降。30-40cm层次热值呈现波状起伏。而毛果苔草枯落物热值的变化起伏大,规律特征不明显。This text has studied the calorific values of litters in 3 kinds of typical wetland plant, and the affecting factors were discussed. The Calorific values of Calamagrostis angustifolia and Carex pseudocuraica presented the same variation tendency： The calorific values of litters in three levels： 0-10cm. 10- 20cm,20-30cm depth droped gradually going on with resolving. Layer of 30-40 cm appeared rise and fall wavily. The calorific values of these two kinds of litters appeared the same trend. The changes of litter calorific values of Carex lasiocarpa rose and fell greatly, the regularity was not obvious.

关 键 词：环型湿地 枯落物 热值 

分 类 号：X171.1[环境科学与工程—环境科学]