Details

Autor(en) / Beteiligte

• Ren, Wei-ling
• Guo, Jian-fen
• Wu, Bo-bo
• Wan, Jing-juan
• Ji, Shu-rong
• Liu, Xiao-fei

Titel

Decomposition dynamics of leaf litter in logging residue of a secondary Castanopsis carlesii plantation and its chemical composition changes

Ist Teil von

• Ying yong sheng tai xue bao, 2015-04, Vol.26 (4), p.1077-1082

Ort / Verlag

China

Erscheinungsjahr

2015

Quelle

MEDLINE

Beschreibungen/Notizen

• A field experiment was conducted to understand the decomposition rates and chemical composition changes of leaf litter in logging residues of a 35-year-old secondary Castanopsis carlesii plantation over a period of one year. Mass loss rate of leaf litter showed an exponential decrease with time from May 2012 to April 2013, with a total 80% loss of initial dry mass. Net potassium (K) release was observed during this period, with only 5% of initial K remained. Nitrogen ( N) featured a pattern of accumulation at the early stage and release later, while phosphorus (P) exhibited a sequence of release, accumulation, and release. The remaining of N and P were 19% and 16% of their initial mass, respectively. The release rate was highest for K and the lowest for N. Decomposition of lignin indicated a trend of release-accumulation-release from May 2012 to October 2012, with no further significant change from November 2012 to the end of the experiment. The concentration of cellulose nearly unchanged during the experimen