Variation in soil respiration under the tree canopy in a temperate mixed forest, central China, under different soil water conditions

• DOI: 10.1007/s11284-013-1110-5
• Publication Date: 2013-12-20T18:21:46Z
• Authors: Yanchun Liu; Shirong Liu; Jingxin Wang; Xueling Zhu; Yuandong Zhang; Xiaojing Liu
• Keywords: Soil respiration; Tree canopy; Temperate forest

Abstract The forest canopy cover can directly and indirectly affect soil conditions hence carbon emission through respiration. Little is known, however, on the effects of respiration under different tree species water conditions. We have examined variation in at (dry <10 %, wet >20 v/v) covers comparison with interspace a temperate coniferous ( Pinus armandii Franch) broadleaved Quercus aliena var. acuteserrata ) mixed central China. results show that measured varied size content. Soil small‐sized canopies P. (PS) was higher than large‐sized (PL) canopies, but difference only significant dry condition. However, Q. (QL) significantly greater (QS) both between differently sized (33.5–35.8 %) (2.4–8.1 %). Differences inter‐plant gaps QS were significant. Significant increases (9.7–32.2 during transition from to found regardless size, increase lower (9.7–17.7 (25.9–31.5 Our findings influences moisture could provide useful information for parameterizing and/or calibrating flux models, especially spatially explicit models.