Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14123 |
Land use intensity, rather than plant species richness, affects the leaching risk of multiple nutrients from permanent grasslands | |
Klaus, Valentin H.1,2; Kleinebecker, Till1; Busch, Verena1; Fischer, Markus3; Hoelzel, Norbert1; Nowak, Sascha4; Prati, Daniel3; Schaefer, Deborah3; Schoening, Ingo5; Schrumpf, Marion5; Hamer, Ute1 | |
2018-07-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2018 |
卷号 | 24期号:7页码:2828-2840 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; Switzerland |
英文摘要 | The intensification of land use constitutes one of the main drivers of global change and alters nutrient fluxes on all spatial scales, causing landscape-level eutrophication and contamination of natural resources. Changes in soil nutrient concentrations are thus indicative for crucial environmental issues associated with intensive land use. We measured concentrations of NO3-N, NH4-N, P, K, Mg, and Ca using 1,326 ion-exchange resin bags buried in 20cm depth beneath the main root zone in 150 temperate grasslands. Nutrient concentrations were related to land use intensity, that is, fertilization, mowing, grazing intensities, and plant diversity by structural equationmodeling. Furthermore, we assessed the response of soil nutrients to mechanical sward disturbance and subsequent reseeding, a common practice for grassland renewal. Land use intensity, especially fertilization, significantly increased the concentrations of NO3-N, NH4-N, K, P, and also Mg. Besides fertilization (and tightly correlated mowing) intensity, grazing strongly increased NO3-N and K concentrations. Plant species richness decreased P and NO3-N concentrations in soil when grassland productivity of the actual year was statistically taken into account, but not when long-term averages of productivity were used. Thus, we assume that, in the actual study year, a distinct drought period might have caused the observed decoupling of productivity from fertilization and soil nutrients. Breaking up the grassland sward drastically increased NO3-N concentrations (+146%) but reduced NH4-N, P, and K concentrations, unbalancing soil nutrient stoichiometry and boosting the risk of N leaching. Reseeding the sward after disturbance did not have a short-term effect on nutrient concentrations. We conclude that renewal of permanent grassland should be avoided as far as possible and future grassland management has to strongly rise the effectiveness of fertilization. Additionally, grassland management might have to increasingly taking care of periods of drought, in which nutrient additions might not increase plant growth but potentially only facilitate leaching. |
英文关键词 | drought fertilization grassland biodiversity grazing ion-exchange resin bags mowing nitrate leaching phosphorus |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000437281500009 |
WOS关键词 | ION-EXCHANGE-RESINS ; GRAZED GRASSLAND ; NITROGEN AVAILABILITY ; TEMPERATE GRASSLAND ; N FERTILIZATION ; CUT GRASSLAND ; N2O EMISSIONS ; GLOBAL CHANGE ; REAL-WORLD ; SOIL |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/17207 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.Univ Munster, Inst Landscape Ecol, Munster, Germany; 2.Swiss Fed Inst Technol, Inst Agr Sci, Zurich, Switzerland; 3.Univ Bern, Inst Plant Sci, Bern, Switzerland; 4.Munster Univ, MEET, Munster, Germany; 5.Max Planck Inst Biogeochem, Jena, Germany |
推荐引用方式 GB/T 7714 | Klaus, Valentin H.,Kleinebecker, Till,Busch, Verena,et al. Land use intensity, rather than plant species richness, affects the leaching risk of multiple nutrients from permanent grasslands[J]. GLOBAL CHANGE BIOLOGY,2018,24(7):2828-2840. |
APA | Klaus, Valentin H..,Kleinebecker, Till.,Busch, Verena.,Fischer, Markus.,Hoelzel, Norbert.,...&Hamer, Ute.(2018).Land use intensity, rather than plant species richness, affects the leaching risk of multiple nutrients from permanent grasslands.GLOBAL CHANGE BIOLOGY,24(7),2828-2840. |
MLA | Klaus, Valentin H.,et al."Land use intensity, rather than plant species richness, affects the leaching risk of multiple nutrients from permanent grasslands".GLOBAL CHANGE BIOLOGY 24.7(2018):2828-2840. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论