NWIPB OpenIR
Competition between Stipa grandis and Cleistogenes squarrosa
Wang, J. H.1; Wang, S. P.1; Schnug, E.2; Haneklaus, S.2; Patton, B.3; Nyren, P.2
2008-02-01
发表期刊JOURNAL OF ARID ENVIRONMENTS
卷号72期号:2页码:63-72
文章类型Article
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.; 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.
关键词Inner Mongolia Steppe Nutrients And Sulfur Application Productivity s Uptake
WOS标题词Science & Technology ; Life Sciences & Biomedicine
学科领域生物科学
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研究方向Environmental Sciences & Ecology
WOS类目Ecology ; Environmental Sciences
WOS记录号WOS:000251674800001
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://210.75.249.4/handle/363003/1243
专题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.
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