Knowledge Management System of Northwest Institute of Plateau Biology, CAS
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 | |
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. |
条目包含的文件 | 下载所有文件 | |||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Net primary producti(538KB) | 开放获取 | 使用许可 | 浏览 下载 |
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