Volume 27 Issue 5
Feb.  2014
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THE UTILIZATION AND DISTRIBUTION OF THE SUNLIGHT RADIATION ENERGY IN CAREX LASIOCARPA WETLAND IN SANJIANG PLAIN[J]. ACTA HYDROBIOLOGICA SINICA, 2003, 27(5): 502-506.
Citation: THE UTILIZATION AND DISTRIBUTION OF THE SUNLIGHT RADIATION ENERGY IN CAREX LASIOCARPA WETLAND IN SANJIANG PLAIN[J]. ACTA HYDROBIOLOGICA SINICA, 2003, 27(5): 502-506.
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THE UTILIZATION AND DISTRIBUTION OF THE SUNLIGHT RADIATION ENERGY IN CAREX LASIOCARPA WETLAND IN SANJIANG PLAIN

  • Department of Environmental Science and Engineering, Shanghai University, Shanghai, 200072

  • Received Date: July 29, 2002
  • Rev Recd Date: October 11, 2002
  • Published Date: September 24, 2003
    Graphical Abstract
    • Abstract
  • Carex lasiocarpa is a rhizomatous clonal species of mire wetland in Northeastern China. The field studies about physical process of Carex lasiocarpa wetland was carried out in the Shangjiang Plain Mire Wetlands Ecological Experiment Station(47°31′N, 133°31′E)of the Chinese Academy of Sciences. The sampling area is 200×450m2 and was divided into three areas including the determined area of biomass, the determined area of wither biomass and the decompose area. Samples were taken 30 days once during May and October in 1998 and 1999. Sampling area was 1×1m2 and 2 to 3 replicates for each. The plants were divided into different components including leaf, sheath, rhizome,inflorescence, spike,radicula and dead standing. All samples were ground into pieces and dried to constant weight at 80℃ for analysis. The energy content is determined by bomb carlorimeter(Parr, USA). The photosynthesis is determined by photosynthesis meter(CID company, USA)The results showed that the net photosynthesis rate of Carex lasiocarpa(47.41 μ mol/m/s)is faster than those of other plants in Carex lasiocarpa wetland, Based on the overall sunlight radiation and the efficient photosynthesis radiation, energy utilization rate in radicula was the highest(1.3945% and 3.1879%)While those in spike was the lowest(0.0020% and 0.0046%). Energy utilization efficiency of Carex lasiocarpa population is 2.54%. The average energy content of underground components of Carex lasiocarpa community is bigger than those in other community. It showed that C. lasiocarpa had higher energy productive efficiency and most energy was stored in their underground part. Energy contents in underground components decreased with the increase in depth in soil.
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  • [1]
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    Zhu T C. The energy flux and material circle in ecology [J]. Beijing:Science Popularization Press. 1984,33-44.[祝廷成,生态系统的能量流动和物质循环.北京:科学普及出版社.1984,33-44][2] He C Q. The ehergy flux process about Carex lasiocarpa in Sanjiang plain [J]. Acta Ecologica Sinica,2002,22(8): 1350-1353.[何池全,三江平原毛果苔草湿地能量流动过程分析,生态学报,2002,22(8):1350-1353][3] He C Q. The physical process of Carex lasiocarpa wetland in Sanjiang plain-the basic characteristic of the energy environment [J]. Environment Science Research. 2001,14(5): 57-60.[何池全.三江平原毛果苔草湿地物理过程Ⅰ-能量环境的基本特征.环境科学研究,2001,14(5):57-60][4] He C Q. The physical process of Carex lasiocarpa wetland in Sanjiang plain-the transportr of the whole sunshine radiant energy in ecosystem[J]. Chinese Environment Science.2001,21(4):376-379.[何池全.三江平原毛果苔草湿地物理过程Ⅱ-太阳辐射能在生态系统中的传输.中国环境科学,2001,21(4):376-379][5] He C Q, Zhao K Y, Yu G Y. The advance of the wetland ecological process[J], Geoscience Advance,2000,15(2):165-171.[何池全,赵魁义,余国营.湿地生态过程研究进展.地球科学进展,2000,15(2):165-171][6] Yu D. The study of the physiology ecology in Batrachium bungei[J]. Acta Hydrobiologica Sinica,1994,18(3):254-262[于丹.水毛茛生理生态学研究.水生生物学报,1994,18(3):254-262][7] Li W. et al. The quantitative analysis of the plant comminute in Hong Hu lake I: Form. potamogeton maackianus[J]. Acta Hydrobiologica Sinica,1999,23(1): 53-57.[李伟等. 洪湖主要沉水植物群落的定量分析1.微齿眼子菜群落. 水生生物学报,l999,23(1):53-57][8] Zou Y G. The some technology problems about the determination of the plant calorie[J]. Chinese Journal of ecology. 1986,5(4):53-56].[祖元刚.植物热值测定中的若干技术问题. 生态学杂志,1986,5(4):53-56][9] Yu Q. The advance of the plant photosynthesis production and the simulation of the coronal layer braise separate[J]. Acta Ecologica Sinica. 1999,19(5)744-753.[于强.植物光合生产力与冠层蒸散模拟研究进展.生态学报,1999,19(5)744-753]
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