Competition between Stipa grandis and Cleistogenes squarrosa
文献类型：期刊论文
| 作者 | Wang, J. H.1; Wang, S. P.1; Schnug, E.2; Haneklaus, S.2; Patton, B.3; Nyren, P.2 |
| 刊名 | journal of arid environments
 |
| 出版日期 | 2008-02-01 |
| 卷号 | 72期号:2页码:63-72 |
| 关键词 | Inner Mongolia steppe nutrients and sulfur application productivity S uptake |
| 合作状况 | 其它 |
| 中文摘要 | competitive strategy for resources between cleistogenes squarrosa (trin.) keng which is a dominant species of grasslands degraded by moderate-heavy grazing, and stipa grandis p. smirnov, which is a dominant species of ungrazed communities, was studied using a replacement series method in a greenhouse. the knowledge would be helpful in managing grasslands and restoring the degraded c. squarrosa grassland. although there was neither inter- nor intra-specific competition between the two species when no nutrients were added, intra-specific competition of c. squarrosa was observed and increased with increased nutrient availability and more sulfur (s) was allocated to the aboveground partition of the plant. relative competitive ability of c. squarrosa was greater than that of s. grandis when nutrients were supplied regardless of s. there was no significant difference between shoot and root competition based on dry matter yields. however, root competition was significantly greater than that of shoot based on s uptake under all treatments. a significant interaction was not observed between shoot and root competition. therefore, nutrients addition benefits the restoration of degraded grassland of c. squarrosa, which may not exclude s. grandis. also productivity and forage quality of the community will be increased. (c) 2007 elsevier ltd. all rights reserved. |
| 英文摘要 | competitive strategy for resources between cleistogenes squarrosa (trin.) keng which is a dominant species of grasslands degraded by moderate-heavy grazing, and stipa grandis p. smirnov, which is a dominant species of ungrazed communities, was studied using a replacement series method in a greenhouse. the knowledge would be helpful in managing grasslands and restoring the degraded c. squarrosa grassland. although there was neither inter- nor intra-specific competition between the two species when no nutrients were added, intra-specific competition of c. squarrosa was observed and increased with increased nutrient availability and more sulfur (s) was allocated to the aboveground partition of the plant. relative competitive ability of c. squarrosa was greater than that of s. grandis when nutrients were supplied regardless of s. there was no significant difference between shoot and root competition based on dry matter yields. however, root competition was significantly greater than that of shoot based on s uptake under all treatments. a significant interaction was not observed between shoot and root competition. therefore, nutrients addition benefits the restoration of degraded grassland of c. squarrosa, which may not exclude s. grandis. also productivity and forage quality of the community will be increased. (c) 2007 elsevier ltd. all rights reserved. |
| 学科主题 | 生物科学 |
| WOS标题词 | science & technology ; life sciences & biomedicine |
| 类目[WOS] | ecology ; environmental sciences |
| 研究领域[WOS] | environmental sciences & ecology |
| 关键词[WOS] | inner-mongolia steppe ; shoot competition ; sulfur fertilization ; subterranean clover ; china ; root ; vegetation ; community ; nitrogen ; requirement |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000251674800001 |
| 公开日期 | 2009-12-07 |
| 源URL | [http://ir.nwipb.ac.cn/handle/363003/1243]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 作者单位 | 1.Chinese Acad Sci, NW Inst Plateau Biol, Key Lab Adapt & Evolut Plateau Biota, Xining 810008, Peoples R China 2.FAL, Inst Plant Nutr & Soil Sci, D-38116 Braunschweig, Germany 3.S Dakota State Univ, Cent Grasslands Res Extens Ctr, Streeter, ND 58483 USA |
| 推荐引用方式 GB/T 7714 | Wang, J. H.,Wang, S. P.,Schnug, E.,et al. Competition between Stipa grandis and Cleistogenes squarrosa[J]. journal of arid environments,2008,72(2):63-72. |
| APA | Wang, J. H.,Wang, S. P.,Schnug, E.,Haneklaus, S.,Patton, B.,&Nyren, P..(2008).Competition between Stipa grandis and Cleistogenes squarrosa.journal of arid environments,72(2),63-72. |
| MLA | Wang, J. H.,et al."Competition between Stipa grandis and Cleistogenes squarrosa".journal of arid environments 72.2(2008):63-72. |
入库方式： OAI收割
来源：西北高原生物研究所
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