Human alteration of the global nitrogen and phosphorus soil balances for the period 1970-2050
Human alteration of the global nitrogen and phosphorus soil balances for the period 1970-2050
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DOI：
10.1029/2009gb003576
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发表时间：
2009-12-18
影响因子：
5.2
通讯作者：
Billen, G.
中科院分区：
文献类型：
--
作者：
Bouwman, A. F.;Beusen, A. H. W.;Billen, G.
2000年至2050年的千年生态系统评估情景描述了气候变化下农业用地未来发展的对比。差异与作物和牲畜总产量以及农业养分利用效率有关。对环境问题采取反应性方法的情景表明，所有发展中国家的农业氮和磷土壤平衡都有所增加。在具有主动态度的情景中，N平衡减少，P平衡没有变化或略有增加。在欧洲和北美，氮平衡在所有情景中都将下降，以环境导向型情景下降最为明显；P平衡下降（主动）或缓慢增加（被动）。即使在农业效率迅速提高的情况下，即使在最乐观的情况下，全球氮平衡、氨、淋失和反硝化损失也不会从目前的水平下降。土壤磷耗竭似乎是全球大部分草原地区的一个主要问题。引用本文：鲍曼，A. F.， A. H. W. Beusen， G. Billen(2009)，人类活动对1970-2050年全球土壤氮磷平衡的影响，全球生物地球化学。周期，23,GB0A04, doi:10.1029/2009GB003576。
The Millennium Ecosystem Assessment scenarios for 2000 to 2050 describe contrasting future developments in agricultural land use under changing climate. Differences are related to the total crop and livestock production and the efficiency of nutrient use in agriculture. The scenarios with a reactive approach to environmental problems show increases in agricultural N and P soil balances in all developing countries. In the scenarios with a proactive attitude, N balances decrease and P balances show no change or a slight increase. In Europe and North America, the N balance will decline in all scenarios, most strongly in the environment-oriented scenarios; the P balance declines (proactive) or increases slowly (reactive approach). Even with rapidly increasing agricultural efficiency, the global N balance, ammonia, leaching and denitrification loss will not decrease from their current levels even in the most optimistic scenario. Soil P depletion seems to be a major problem in large parts of the global grassland area. Citation: Bouwman, A. F., A. H. W. Beusen, and G. Billen (2009), Human alteration of the global nitrogen and phosphorus soil balances for the period 1970-2050, Global Biogeochem. Cycles, 23, GB0A04, doi:10.1029/2009GB003576.