Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2016, Vol. 32 ›› Issue (22): 140-150.doi: 10.11924/j.issn.1000-6850.casb16010004

Special Issue: 资源与环境 农业生态

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Response of Litter Decomposition in Different Ecosystem Types to Nitrogen Deposition: A Review

Dong Xiongde1, Xing Yajuan1,2, Yan Guoyong1,3, Wang Qinggui1,3   

  1. (1College of Agricultural Resource and Environment, Heilongjiang University, Harbin 150080;2Institute of Forestry Science of Heilongjiang Province, Harbin 150081;3College of Forestry, Northeast Forestry University, Harbin 150040)
  • Received:2016-01-03 Revised:2016-07-19 Accepted:2016-03-04 Online:2016-08-09 Published:2016-08-09

Abstract: This review aims to summarize the response of litter decomposition in different ecosystem types to nitrogen deposition, in order to improve the interaction mechanism of litter decomposition and nitrogen deposition. Nitrogen is the main component of protein, plays a key role in nitrogen balance in animal body, greatly affects the growth of plant leaf and fruit, and acts as the most closely related nutrient element with the yield. But in recent decades, due to the increasing discharge of nitrogen compounds into the atmosphere such as emission of industry, agriculture, animal husbandry, studies have shown that atmospheric nitrogen deposition directly or indirectly influences the growth of plants, animals and microorganisms in different ecosystems, and through its effect on microbial physiological and biochemical process, changes the litter decomposition rate, in turn, affects the nutrient cycle and energy flow process of the ecosystem. From 1970s-1990s, there were many research literatures about nitrogen deposition, scholars at home and abroad made comments on the influence of nitrogen deposition on litter, but mostly based on one terrestrial ecosystem type or litter degradation process, production distribution, evaluation of the influencing factors and so on. However, the influence of nitrogen deposition on the litter decomposition in different ecosystem types was rarely reported. Thus, the authors summarized the influence of nitrogen deposition on the litter decomposition in different terrestrial ecosystem types (forest, grassland, desert, city and farmland), to provide certain references for further study on the response of litter decomposition process in different ecosystem types to nitrogen deposition.