Effects of leaf nutrient concentration and resorption on leaf falling time of dominant broadleaved species in a montane region of eastern Liaoning Province,China期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Effects of leaf nutrient concentration and resorption on leaf falling time of dominant broadleaved species in a montane region of eastern Liaoning Province,China

Affiliation:	1 Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China 2 Qingyuan Forest Chinese Ecosystem Research Network, Chinese Academy of Sciences, Shenyang 110016, China 3 University of Chinese Academy of Sciences, Beijing 100049, China

Abstract:	*Aims* Litter is an important source of nutrient in forest ecosystems, and its decomposition rate has a significant impact on soil nutrient supply. Previous observations indicated that different leaf falling time resulted in different litter decomposition rates. We found that the leaf falling time of Quercus mongolica was later than that of other tree species, especially in the barren soil. However, it is not yet clear why the leaves of Q. mongolica fall later. We hypothesized that the leaves of Q. mongolica had higher nutrient concentration, and longer time for resorption, which could lead to the later time of leaf falling.

Keywords:	nutrient concentration in leaf nutrient resorption efficiency leaf falling time broadleaved species

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