JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2010, Vol. 34 ›› Issue (06): 43-46.doi: 10.3969/j.jssn.1000-2006.2010.06.010

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Carbon dynamics of litterfall under six forest stands in subtropical China

LI Zhengcai1, YANG Xiaosheng1, ZHOU Benzhi1, CAI Xiaojun2, SUN Jiaojiao2, Geriletu1, SUN Xuezhong2, FU Maoyi1   

  1. 1.Research Institute of Subtropical Forestry, CAF, Fuyang 311400, China; 2.Fuyang Forestry Bureau of Zhejiang Province, Fuyang 311400, China
  • Online:2010-12-27 Published:2010-12-27

Abstract: Based on the field study of forest littlefall collection, this paper dealt with carbon dynamics of forest litter under six landuse types in the subtropical China in 2004. The results showed that: (1) Carbon amount of litterfall of the naturally secondly stands and masson pines formed doublepeak in Mar.and Jun., Feb.and Apr., respectively, while Chinese fir stand, Ph.praecox and moso stand formed singlepeak in Dec., Mar., May and Jun. respectively. (2) Carbon amount of littlefall of the naturally secondly stands was 3.22 t/hm2, the following were Chinese fir stand and masson pines, the extensively and intensively managed moso stand were almost the same, while the least was Ph.praecox stands, which was only 1.39 t/hm2. (3) Components of forest litterfall carbon were mainly composed of leaf, which were among 58.00 % and 73.65 %, while branch, fruit and others occupied less proportion of forest litterfall. (4) The naturally secondly stands had the best ability of improving the soil quality by selffertilization, which meant their ecological function had advantages over other landuse types.

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