JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2021, Vol. 45 ›› Issue (2): 1-9.doi: 10.12302/j.issn.1000-2006.202003037

Previous Articles     Next Articles

Research progress on the effects of forest fire on forest ecosystem C-N-P ecological stoichiometry characteristics

SUN Long(), DOU Xu, HU Tongxin*()   

  1. Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, School of Forestry, Northeast Forestry University, Harbin 150040, China
  • Received:2020-03-13 Accepted:2020-07-04 Online:2021-03-30 Published:2021-04-09
  • Contact: HU Tongxin E-mail:sunlong365@126.com;htxhtxapple@sina.com

Abstract:

Forest fires can change the ecological stoichiometry of elements in forest ecosystems, reflecting the pattern of biogeochemical cycle change of the forest ecosystem environment after the fire. Clarifying the ecological stoichiometrics characteristics of carbon (C), nitrogen (N) and phosphorus (P) in forest ecosystems under forest fire disturbances is essential for understanding the response mechanisms of forest ecosystems to forest fire disturbances. By consulting a large number of relevant documents, the author summarizes and analyzes the impact pattern of forest fire disturbance on forest ecosystem C-N-P ecological stoichiometry and on plant, litter and soil C-N-P ecological stoichiometry characteristics. It is believed that the forest ecosystem C-N-P ecological stoichiometric characteristics were mainly affected by fire factors (i.e., fire intensity, fire frequency, recovery years after fire), type of vegetation and soil properties in three aspects. To address the scientific problems that need to be solved urgently in the study of forest fires on the ecological stoichiometry of forest ecosystems, prospects were made from three aspects, including exploring the influence of the mechanism of forest fire disturbance on the internal stability of plant ecological stoichiometry, comprehensively clarifying the study of multi-element ecological stoichiometry under forest fire disturbance, and establishing the ecological stoichiometric relationship of plant-litter-soil complex systems under forest fire disturbance. These are important for a deep understanding of the nutrient cycle and balance of forest ecosystems within the context of global climate change, for the rational formulation of forest fire management measures, and for further exploring the impact mechanism of plant growth, litter decomposition, and biogeochemical cycles in forest ecosystems after fire disturbance in China, to provide a reference for promoting the development of this field.

Key words: forest fire, forest ecosystem, ecological stoichiometry, litter, soil nutrient

CLC Number: