The facilitation effect on accumulative CO 2 release by N amendments was more and more obvious over the decomposition time, especially for the low- and intermediate-N treatments.

The accumulative CO 2 release significantly increased after N addition in the medium and late phases.

During a 220-day decomposition period, there was little effect of the N amendments on litter CO 2 evolution rates (9.97‒307.54 μg C g −1 h −1) with a notable exception regarding the increase of the high-N treatment at day 20. Phospholipid fatty acid (PLFA) method and enzyme method were used to analysis litter microbial community composition and enzymatic activity. brevifolius (shichito matgrass) litter decomosition. We conducted a short-term N addition (6, 16, and 24 g N m ‒2 yr ‒1) experiment in Cyperus malaccensis var. Microbial evolution-mediated CO 2 from litter has aroused widespread concern, and knowing the factors controlling litter-derived CO 2 is important when considering the effects of accumulative CO 2 release from litter on the global greenhouse.

5Fujian Provincial Key Laboratory for Plant Eco-physiology, Fujian Normal University, Fuzhou, China.

4College of Marine Sciences, South China Agricultural University, Guangzhou, China.

3State Key Laboratory of Subtropical Mountain Ecology (Funded by Ministry of Science and Technology and Fujian Province), Fujian Normal University, Fuzhou, China.

2College of Geographical Science, Fujian Normal University, Fuzhou, China.

1Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou, China.

Weifang Hu 1,2,3, Congsheng Zeng 2,3, Chuan Tong 2,3, Guoliang Li 1, Xue Lan 4, Jiacong Zhou 2,3, Meiying Zhang 2,3, Yuehmin Chen 2,3* and Linhai Zhang 2,3,5*

After effect 2019 portable