Seasonal Dynamics and Influencing Factors of Litterfall Production and Carbon Input in Typical Forest Community Types in Lushan Mountain, China

Litterfall is an important part of the process nutrient circulation and energy flow in forest ecosystems. Mountain forests are strongly eroded by running water that surface soil thinner, terrain complex diverse. They more sensitive to climate change, which will affect ecological processes carbon sink functions Taking Lushan as example, we studied dynamic characteristics litterfall components, seasonal changes input influencing factors typical communities subtropics. The results showed total annual average components evergreen broad-leaved (EBF) > artificial coniferous (ACF) deciduous (DBF) renew young (RYF), leaf first productivity peak mainly concentrated spring autumn, showing a single- or double-peaked change pattern. There was linear relationship between four stand factor, but correlation degree R2 small. Overall, amount affected canopy density density. Light, temperature at different altitudes had effects on litterfall, with excessive temperatures lower likely limit growth development under adequate light water, opposite true higher altitudes. Pearson analysis EBF DBF were negatively correlated rainfall, ACF RYF wind speed positively correlated. size DBF, may be related environmental conditions vegetation types, differences arranged order autumn summer winter. It can seen that, considering performance future conducive has good fertility maintenance ability.