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1. Please find two English literature about water hyacinth.

Can you take a look? If there are any shortcomings, please leave me a message:

（1）Water hyacinth(Eichhornia crassipes),which has been listed in the firstblacklistof biological invasion spe-cies in China,is a free-floating aquatic plant species originated from South American,with various growth habitsunder differentenvironmental conditi…　　In order to reveal the adaptation of water hyacinth at different acidity conditions,a six-week experiment, using mesocosm tanks with Hoagland"s solutions,was set up in a greenhouse to investigate the adaptation of the plant exposed to different acidity conditions(pH 3.5,5.0,7.0,9.0 and 11.0).The results showed that water hyacinth was able to grow in hydroponic solution at pH from 3.5 to 11.0.The relative growth rates of the plant ranged from 6.12 to 3.08 and declined as the pH level increased.Plant height,leafstalk length,leaf length,leaf width and leaf thickness of water hyacinth did not vary significantly at the range of pH 3.5 to 9.0,while root length,stolon length and root vigor declined obviously with the increasing pH.Bio-chemical analysis showed that soluble protein decreased and malondildehyde (MDA) contents changed slightly in leaves,but no significant difference was found among the five treatments.However,at basic conditions,the higher CAT,POD activities and MDA contents,as well as the imbalance between CAT,POD and SOD in roots were found,implying that the plant could not remove activated oxygen successfully and injured by radicals.The higher root vigor and relative growth rates of water hyacinth at acidic conditions than base one suggested that the plant preferred to acidic conditions.As a result,the

（2）Haq M A,Sumangala K. Acarine regulators of water hy-acinth in Kerala(India)[J] .Experimental and Applied Ac-arology, 2003,29, 29 (1/2) :27-33 .　　[2] XIE Y H,YU D. The significance of lateral roots in phosphorus(P)acquisition of water hyacinth(Eichhornia crassipes)[J] .Aquatic Botany, 2003,75, 75 (4) :311-321 .　　[3] Xie Y H, Wen M Z, Yu D, Li Y K. Growth and resource allocation of water hyacinth as affected by gradually increasing nutrient concentrations .Aquatic Botany, 2004,79, 79 :257 266 .　　[4] YANG F H,MAT,CHENJ K,et al. Eichhornia crassipes disaster in Huangpu River in Shanghai:causes,consequences andcontrol strategies[J] .Journal of Fudan University:Natural Science Edition, 2002,41, 41 (6): 599-603. [5] LI B, LIAO C Z, GAO L, et al. Strategic Management of Water Hyacinth (Eichhoria crassipes), an invasive alien plant [J]. Journal of Fudan University: Natural Science Edition, 2004, 43 (2): 267-274. [6] MASIFWAW F, TWONGO T, DENNY P. The impact of Water Hyacinth, Eichhoria crassipes (Mart) Solms on the abundance and diversity of aquatic macroinvertebrates along the shores of northern Lake Victoria, Uganda [J] Hydrobiology, 2001, 452, 452 (1-3): 79-88. [7] PLUMMER M. L. Impact of invasive water hyacinth (Eichhoria crassipes) on snail hosts of schistosomiasis in Lake Victoria, East Africa [J]. EcoHealth, 2005, 2, 2 (1): 81-86. [8] MANGABEIRA P A O, LABEJOF L, LAMPERTI A, et al. Ac

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