Nitrogen deposition and reduction of terrestrial biodiversity:Evidence from temperate grasslands

作     者：Nancy B.Dise Carly J.Stevens 

作者机构：Department of Earth Sciences Open UniversityMilton KeynesMK7 6AAUK Department of BiologyVillanova UniversityVillanovaPA 19085USA Department of Agricultural ScienceImperial College at WyeWyeAshfordTN25 4NJUK 

出 版 物：《Science China(Life Sciences)》 (中国科学（生命科学英文版）)

年 卷 期：2005年第48卷第Z2期

页      面：720-728页

学科分类：09[农学] 0903[农学-农业资源与环境] 

主　　题：nitrogen deposition, terrestrial biodiversity, temperate grasslands. 

摘      要：Biodiversity is thought to be essential for ecosystem stability, function and long-term sustainability. Since nitrogen is the limiting nutrient for plant growth in many terrestrial ecosystems, reactive nitrogen has the potential to reduce the diversity of terrestrial vegetation and associated biota through favouring species adapted to quickly exploiting available nutrients. Although the potential has long been recognised, only recently has enough evidence come together to show beyond reasonable doubt that these changes are already occurring. Linked together, experimental, regional/e.rnpirical, and time-series research provide a powerful argument that enhanced deposition of reactive nitrogen across Great Britain, and potentially the rest of Europe, has resulted in a significant and ongoing decline in grassland species richness and diversity.