Effects of nitrogen addition and litter manipulation on plant and soil carbon pool in a meadow steppe

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外文摘要：Nitrogen (N) deposition is one of the most ubiquitous human disturbances to natural ecosystems， and some of the fastest rates of increase are in temperate grasslands。Added N is likely to alter the Carbon (C) balance of ecosystems， and understanding responses above-and belowground could greatly improve our ability to model C cycling in a changing word。On the other hand， plant litter represents a major process for transferring nutrients from vegetation to soils， and has also long been recognized as the crucial factor in controlling soil nutrient availability and plant growth in terrestrial ecosystems。Although it is widely known that the independent effects of N addition and plant litter manipulation on above-and belowground C pools are remarkable， combined effects of these two factors on terrestrial ecosystems， especially in semi-arid grasslands， are remain unknown。

外文关键词：

carbon poolnitrogen additionlitter manipulation

作者：

Xiaofei Li、Jushan Liu、Deli Wang

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作者单位：

Institute of Grassland Science, Northeast Normal University, and Key Laboratory of Vegetation Ecology,Ministry of Education, Changchun, 130024, P.R.China

会议名称：

China-Japan-Korea Grassland Conference on Knowledge Innovation of Grassland Science and Sustainalbe Development of Grassland Agriculture;China-Japan-Korea Grassland Conference Program Committee

会议地点：

Changchun(CN)

会议母体文献：

The 5th China-Japan-Korea Grassland Conference: Knowledge Innovation of Grassland Science and Sustainalbe Development of Grassland Agriculture

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出版时间：

2014