Analysis on the temporal and spatial distribution of the primary productivity and its influencing factors in Lake Taiping (Reservoir), Anhui Province

被引：2

作者：

Feng S. ^{[1
]}

Liu D. ^{[1
,2
]}

Li D. ^{[1
]}

Wu M. ^{[1
]}

Xiong L. ^{[1
]}

Wang J. ^{[1
]}

机构：

[1] College of Life and Environmental Science, Shanghai Normal University, Shanghai

[2] Urban Ecology and Environment Research Centre, Shanghai Normal University, Shanghai

来源：

Hupo Kexue/Journal of Lake Sciences | 2016年 / 28卷 / 06期

关键词：

Chlorophyll-a; Correlation analysis; Lake Taiping; P/R coefficient; Primary productivity;

D O I：

10.18307/2016.0622

中图分类号：

学科分类号：

摘要：

Lake Taiping in Anhui was one of the protected lakes proposed by China. Given its lack of biological background data, we studied primary productivity of Lake Taiping from November 2012 to October 2014. Five regions from upstream to downstream (H1, H2, H3, H4, H5) were selected for the measurements of the primary productivity with the dark and white bottle method. Results showed that the gross primary productivity, the net primary productivity and the respiratory capacity of a water column in the lake were 4.54±6.72 g/(m2·d), 1.82±7.77 g/(m2·d) and 6.50±7.62 g/(m2·d), respectively. As for the time distribution, the gross primary productivity appeared three peaks, in November 2012, May 2013 and July 2014, respectively. Respiratory capacity was much higher than other months in July 2013, reached 16.04 g/(m2·d). The seasonal variation of gross primary productivity was in the order of summer>autumn>spring>winter. There was a significant spatial difference in primary productivity: in the horizontal distribution, the levels of primary productivity and respiratory capacity distribution similar to that the middle point of H3 obtain minimum, the H4, H5 of downstream at a higher level; in the vertical distribution, the maximum values of the gross primary productivity were obtained in the surface layer and 1 SD layer, and along the water depth decreases gradually. The vertical distribution of respiratory capacity was different from gross primary productivity, the highest in 1 SD and 2 SD layer, and the value of each layer net primary productivity were smaller, and no obvious peak or valley value. This research showed that the coefficient of P/R of phytoplankton of water column was less than 1 in Lake Taiping, while productivity of the highest layer (surface layer) of coefficient of P/R is greater than 1.Correlation analysis showed that the temperature and deep lake were significantly positive correlation with the gross primary productivity of water column, and other environmental factors correlation were not obvious. © 2016 by Journal of Lake Sciences.

引用

页码：1361 / 1370

页数：9

共 28 条

[1]

Odum H.T., Primary production in flowing waters, Limnology and Oceonography, 1, 2, pp. 102-117, (1956)

[2]

Peng G., Li X., Hao C., Et al., The determination of the primary production of phytoplankton in summer in Gehu lake, Fisheries Economy Research, 1, pp. 46-48, (2007)

[3]

Wang Y., Zhang W., Xu C., Et al., Phytoplankton productivity and its influencing factors in Dianshan Lake, Environmental Science, 32, 5, pp. 1249-1256, (2011)

[4]

Kennedy J.T., Whalen S.C., Seasonality and controls of phytoplankton productivity in the middle Cape Fear River, USA, Hydrobiologia, 598, 1, pp. 203-217, (2008)

[5]

Boulion V.V., Contribution of major groups of autotrophic organisms to primary production of water bodies, Water Resources, 31, 1, pp. 92-102, (2004)

[6]

Chen J., Research on primary productivity and fishery potential of Guocun Reservoir, Journal of Anhui Agricultural Sciences, 39, 7, pp. 4032-4033, (2011)

[7]

Wei Z., Bao C., Ding S., Et al., Assessment and analysis of primary production and fish productivity in Wanfo Lake, Journal of Anhui Agricultural University, 39, 6, pp. 871-874, (2012)

[8]

Zhu A., Liu J., Hu C., Et al., Primary production of phytoplankton and its management in Fuqiaohe Reservoir, Hubei Province, J Lake Sci, 19, 3, pp. 340-344, (2007)

[9]

Li Z., Guo W., Cheng S., Et al., The spatial and temporal distribution of chlorophyll-a and its correlation with environmental factors Nanfeihe River, Acta Hydrobiologica Sinica, 38, 2, pp. 342-350, (2014)

[10]

Kuang Q., Xia Y., Community dynamics of algae and limiting nutrient in Taipinghu Reservoir, J Lake Sci, 7, 3, pp. 235-238, (1995)

← 1 2 3 →