NWIPB OpenIR
Net primary productivity and spatial distribution of vegetation in an alpine wetland, Qinghai-Tibetan Plateau
Hirota, Mitsuru; Kawada, Kiyokazu; Hu, Qiwu; Kato, Tomomichi; Tang, Yanhong; Mo, Wenhong; Cao, Guangmin; Mariko, Shigeru
2007-08-01
发表期刊LIMNOLOGY
卷号8期号:2页码:161-170
文章类型Article
摘要To initially describe vegetation structure and spatial variation in plant biomass in a typical alpine wetland of the Qinghai-Tibetan Plateau, net primary productivity and vegetation in relationship to environmental factors were investigated. In 2002, the wetland remained flooded to an average water depth of 25 cm during the growing season, from July to mid-September. We mapped the floodline and vegetation distribution using GPS (global positioning system). Coverage of vegetation in the wetland was 100%, and the vegetation was zonally distributed along a water depth gradient, with three emergent plant zones (Hippuris vulgaris-dominated zone, Scirpus distigmaticus-dominated zone, and Carex allivescers-dominated zone) and one submerged plant zone (Potamogeton pectinatus-dominated zone). Both aboveground and belowground biomass varied temporally within and among the vegetation zones. Further, net primary productivity (NPP) as estimated by peak biomass also differed among the vegetation zones; aboveground NPP was highest in the Carex-dominated zone with shallowest water and lowest in the Potamogeton zone with deepest water. The area occupied by each zone was 73.5% for P. pectinatus, 2.6% for H. vulgaris, 20.5% for S. distigmaticus, and 3.4% for C. allivescers. Morphological features in relationship to gas-transport efficiency of the aerial part differed among the emergent plants. Of the three emergent plants, H. vulgaris, which dominated in the deeper water, showed greater morphological adaptability to deep water than the other two emergent plants.; To initially describe vegetation structure and spatial variation in plant biomass in a typical alpine wetland of the Qinghai-Tibetan Plateau, net primary productivity and vegetation in relationship to environmental factors were investigated. In 2002, the wetland remained flooded to an average water depth of 25 cm during the growing season, from July to mid-September. We mapped the floodline and vegetation distribution using GPS (global positioning system). Coverage of vegetation in the wetland was 100%, and the vegetation was zonally distributed along a water depth gradient, with three emergent plant zones (Hippuris vulgaris-dominated zone, Scirpus distigmaticus-dominated zone, and Carex allivescers-dominated zone) and one submerged plant zone (Potamogeton pectinatus-dominated zone). Both aboveground and belowground biomass varied temporally within and among the vegetation zones. Further, net primary productivity (NPP) as estimated by peak biomass also differed among the vegetation zones; aboveground NPP was highest in the Carex-dominated zone with shallowest water and lowest in the Potamogeton zone with deepest water. The area occupied by each zone was 73.5% for P. pectinatus, 2.6% for H. vulgaris, 20.5% for S. distigmaticus, and 3.4% for C. allivescers. Morphological features in relationship to gas-transport efficiency of the aerial part differed among the emergent plants. Of the three emergent plants, H. vulgaris, which dominated in the deeper water, showed greater morphological adaptability to deep water than the other two emergent plants.
关键词Alpine Wetland Net Primary Productivity Qinghai-tibetan Plateau Water Depth Zonal Vegetation
WOS标题词Science & Technology ; Life Sciences & Biomedicine
学科领域生物科学
关键词[WOS]INTERNAL GAS-TRANSPORT ; WATER-DEPTH GRADIENT ; ELEOCHARIS-SPHACELATA ; CARBON ACCUMULATION ; BIOMASS ; DYNAMICS ; EXCHANGE ; BOREAL ; COMMUNITY ; LATIFOLIA
收录类别SCI
语种英语
WOS研究方向Marine & Freshwater Biology
WOS类目Limnology
WOS记录号WOS:000248820400009
引用统计
被引频次:14[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/363003/1261
专题中国科学院西北高原生物研究所
作者单位1.Univ Tsukuba, Sugadaira Montane Res Ctr, Nagano 3862204, Japan
2.Natl Inst Agroenvironm Sci, Ibaraki, Japan
3.Chinese Acad Sci, NW Plateau Inst Biol, Xining, Peoples R China
4.Frontier Res Ctr Global Change, Kanagawa, Japan
5.Natl Inst Environm Studies, Ibaraki, Japan
6.Univ Tsukuba, Grad Sch Life & Environm Sci, Ibaraki, Japan
推荐引用方式
GB/T 7714
Hirota, Mitsuru,Kawada, Kiyokazu,Hu, Qiwu,et al. Net primary productivity and spatial distribution of vegetation in an alpine wetland, Qinghai-Tibetan Plateau[J]. LIMNOLOGY,2007,8(2):161-170.
APA Hirota, Mitsuru.,Kawada, Kiyokazu.,Hu, Qiwu.,Kato, Tomomichi.,Tang, Yanhong.,...&Mariko, Shigeru.(2007).Net primary productivity and spatial distribution of vegetation in an alpine wetland, Qinghai-Tibetan Plateau.LIMNOLOGY,8(2),161-170.
MLA Hirota, Mitsuru,et al."Net primary productivity and spatial distribution of vegetation in an alpine wetland, Qinghai-Tibetan Plateau".LIMNOLOGY 8.2(2007):161-170.
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