STUDY ON THE SPACIAL AND TEMPORAL DISTRIBUTION CHARACTERISTIC OF MACROPHYTE INSTUDY ON THE SPACIAL AND TEMPORAL DISTRIBUTION CHARACTERISTIC OF MACROPHYTE IN EAST LAKE TAIHU
STUDY ON THE SPACIAL AND TEMPORAL DISTRIBUTION
CHARACTERISTIC OF MACROPHYTE IN LAKE EAST TAIHU
Yang Chenchi1, Jia Shuting1, Li Jianhua1, Sun Jun2
1 College of Environmental Science and Engineering, Tongji University, 1239 Siping Road,
Shanghai 200092, China
2College of environmental and chemical engineering, Shanghai University，333 Nanchen road，Shanghai 200444, China
ABSTRACT
Three times situ surveys were conducted during Mar. and Sep. 2013. The result showed that: biomass reached the peak of 2627±920g/m2, it has significant difference between variety site; there are ten main species of aquatic macrophyte in the investigated area and the aquatic phytocoenosium can be divided as Myriophyllum spicatum-Trapa maximowiczii, Nymphoides indica-Elodea nuttalli, Trapa maximowiczii-Limnanthemum nymphoides, Elodea nuttalli-Limnanthemum nymphoides. Lake East Taihu community diversity is relatively stable, but the diversity of Jun. is lower than the diversity of Sep, which could be the effect imposed by the artificial cultivation of Elodea nuttal.
KEYWORDS:
Lake East Taihu; Hydrophyte; Community diversity; Spatial and temporal distribution.
INTRODUCTION
Lake East Taihu is a big shallow lake located to the north east of Lake Taihu, which is largest freshwater lake in China, with an area of 130km2, accounting for
5.5% of Lake Taihu. The average depth of Lake East
Taihu is 0.9m, storage of 1.18×108m3[1]. It’s also a main water supply for the adjacent cities such as
Wujiang, Suzhou and Wuzhong. Lake East Taihu is a typical macrophytic lake, the richness and diversity of hydrophyte vegetated in Lake East Taihu are the highest in Taihu area, helping with the low occurrence of eutrophication[2]. As the development of economic and population increasing in the lake basin, Lake Taihu has suffered increasingly from serious pollution. Diversity of the aquatic macrophyte has been decresing from 75 species in total in 1980s to 55 species[3] in late
CHARACTERISTIC OF MACROPHYTE IN LAKE EAST TAIHU
Yang Chenchi1, Jia Shuting1, Li Jianhua1, Sun Jun2
1 College of Environmental Science and Engineering, Tongji University, 1239 Siping Road,
Shanghai 200092, China
2College of environmental and chemical engineering, Shanghai University，333 Nanchen road，Shanghai 200444, China
ABSTRACT
Three times situ surveys were conducted during Mar. and Sep. 2013. The result showed that: biomass reached the peak of 2627±920g/m2, it has significant difference between variety site; there are ten main species of aquatic macrophyte in the investigated area and the aquatic phytocoenosium can be divided as Myriophyllum spicatum-Trapa maximowiczii, Nymphoides indica-Elodea nuttalli, Trapa maximowiczii-Limnanthemum nymphoides, Elodea nuttalli-Limnanthemum nymphoides. Lake East Taihu community diversity is relatively stable, but the diversity of Jun. is lower than the diversity of Sep, which could be the effect imposed by the artificial cultivation of Elodea nuttal.
KEYWORDS:
Lake East Taihu; Hydrophyte; Community diversity; Spatial and temporal distribution.
INTRODUCTION
Lake East Taihu is a big shallow lake located to the north east of Lake Taihu, which is largest freshwater lake in China, with an area of 130km2, accounting for
5.5% of Lake Taihu. The average depth of Lake East
Taihu is 0.9m, storage of 1.18×108m3[1]. It’s also a main water supply for the adjacent cities such as
Wujiang, Suzhou and Wuzhong. Lake East Taihu is a typical macrophytic lake, the richness and diversity of hydrophyte vegetated in Lake East Taihu are the highest in Taihu area, helping with the low occurrence of eutrophication[2]. As the development of economic and population increasing in the lake basin, Lake Taihu has suffered increasingly from serious pollution. Diversity of the aquatic macrophyte has been decresing from 75 species in total in 1980s to 55 species[3] in late
References: 1) Zhang R.. (2007) Study on the water environmental characters for spatial and temporal 2) Zeng Q.F., Gu X.H., Zhou L.H., et al. (2011) Water quality pollution characteristics in East Taihu Lake. 3) Guo R.B., Xu G.C & Wen H.B. (2005) Effect of Anodonta woodiana pacifica application in healthy 4) ZENG Q.F., GU X.H, ZHOU L.H, ea al. (2011) Water quality pollution characteristics in east taihu 5) He J.., Gu X.H., Liu G.F., et al. (2008) Effects and mechanism on purifying lake Water quality in 6) Yu D, Kang H, Chen Y J. (1996)Lake bend effect and its influenxe on the specific diversity of 7) Phillips G, Jack son R, Bennet t C, et al. (1994)The importance of sediment phosphorus release in the 8) Li W C, Yang Q X. (1995)Wet land utilization in Lake Taihu for fish farming and improvement of 9) Gu X H, Wang X R, Hu W P. (2003)Effect of fishery development on water environment and its 10) Kufel L, Ozimek T. (1994)Can Chara control phosphorus cycling in Lake Luknajin (Poland) ?