On the a ssessm en t m ethodology and standards for nutr ition sta tus in channel type reservo irs ba sed on zon ing of eutroph ica tion sen sitiv ity

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1 Acta Scientiae Circum stantiae Vol. 26, No. 6 Jun., 2006,,, [ J ]., 26 (6) : Zhang Y, Zheng B H, Fu G, et al On the assessment methodology and standards for nutrition status in channel type reservoirs based on zoning of eutrophication sensitivity[ J ]. Acta Scientiae Circum stantiae, 26 (6) : ,,,, : : : :,.,. a,..,. : ; ; ; ; : (2006) : X824 : A On the a ssessm en t m ethodology and standards for nutr ition sta tus in channel type reservo irs ba sed on zon ing of eutroph ica tion sen sitiv ity ZHANG Yuan 3, ZHENG B inghui, FU Guo, L IU Hongliang R iver and Coastal Environmental Research Center, Chinese Research Academy of Environmental Sciences, Beijing Received 18 August 2005; received in revised form 23 Ap ril 2006; accepted 24 Ap ril 2006 Abstract: W ith the study of spatial characteristics of the hydrodynam ics and its relation to the eutrophication sensitivity, an assessment method and standards for nutrition status in channel type reservoirs were proposed based on zoning of eutrophication sensitivity. The hydrodynam ic p robability characteristic indices such as retention ratio, sluggish flow ratio were used to calculate the p robability indices of sensitivity risk, based on which, the channel type reservoirs were divided into the river type region, the transitional type region and the lake type region. D ifferent assessment standards for nutrition status were established to each type of regions. The assessment indicators system for nutrition status includes chlorophyll a, the total phosphorus, the total nitrogen and the transparency. For each indicators we analyzed its applicable conditions in channel type reservoirs. Methods were p roposed for determ ining standard values of nutrition status indicator classification in channel type reservoirs, including statistic analysis, regression of nutrition index and nutrition status indicators and threshold value analysis of nutrition status indices. Methods for integral assessment of nutrition status in channel type reservoirs were studied. And the calculation method of integral nutrition status indices in channel type reservoir, and standards for zoning based on nutrition status were p roposed. Keyword: eutrophication; channel type reservoirs; assessment indices; standards; zoning of sensitivity,.,,, : (No. 2003BA614A204) ; (No. 2002AA ) Supported by the National Tenth2Five Key Technology Program (No. China (No. 2002AA ) 2003BA614A204) and the H i2 tech Research and Development Program of : (1970 ),, ( ), E2mail: zhangyuan@ craes. org. cn, ; 3 B iography: ZHANG Yuan (1970 ), male, associate p rofessor (postdoctor), E2mail: zhangyuan@craes. org. cn, Tel: ; 3 Correspond ing author

2 6 : 1017.,,,1998 (U. S. EPA, 1998), 2000 (U S EPA, 2000),14.,, ( GB ),,.,.,,..,.,,. 1( Spatial characteristics of Fig. channel type reservoirs),,.,,, ( Strskraba et al., 1999;, 2001), ( 1). 1 1 A skeleton of longitudinal zoning of channel type reservoir,,,,,,,,.,,,,,,,.,,,,,,,.,,,,,,. 2 ( A framework for establishing standards),,,., (, 2001),,,.,,.,.,,,.,,, ( ).,

3 ,,. ( Kim et al., 2000)., 3 ( Zoning of,, eutrophication sensitivity in channel type reservoirs), 3. 1., 30m,..,,,. (, 2002).,,,..,,,,., (Novics et a l., 2001),, ( 1)., ;, ( 1). Soballe & Kimmel, 2. 1 Table 1 Calculation method of eutrophication sensitivity zoning indicators for channel type reservoirs ( T) d ( T P ) < 20 d d > 120 d,3, < 20d 0, d0. 5, > 120 d 1. (U ) m s - 1 (U P ), < m s m s - 1 > m s - 1,3, < 0. 01m s - 1 1, m s , > m s ( 1). I RL = 2 ( a 1 T p + a 2 U p ) (1) i =1, I RL ; T p ; U p ; a 1 ; a 2., I RL = 0 100%, I RL = 1 100%, 0 1,,., 3

4 6 : 1019 ( 2). 2 Table 2 Standards for eutrophication sensitivity in channel type reservoirs I RL < I RL < I RL < ( Selection of the indices of nutrition status),,, ( TP) ( TN) a, TP TN, TP TN,,. (DO ) (COD) ph (US EPA, 2000;, 1990)., : ( 1) ; (2) ; (3), ; (4),.,., (, 1988). (, 2004), (Russo, 2002),. a,,,., a.,,,,, ( Smeltzer et al., 1989).,,., ,, 9 10, m, 3 6, m,,.,., COD,,. DO,.,.,, a 4, (Methods for Setting standard values of indicators grading) (, 1987;, 2002), 3, 3, ,. : (1),, TN TPa, ; (2), TP TNa

5 ,, 25%, 50%, 75%.,,,,, a, a, atp TN, a. : (1)TN TP a. (2) (, 1990) ( TSI M ) a ( 2) TSI M ( 3), TSI M a, a. TSI M = 10 ( lna ln2. 5 ) (2), TSI M, ; A a, mg m TS I M Table 3 nutrition status grading standards of TSI M TSIM A / (mg m - 3 ) TSIM 30 A < TSIM <A < TSIM <A < TSIM <A TSIM > 70 A > (3), a TP TN, ChlaTP TN., a,, (, 1990) a TP TN,. 5. 3,,. 3, L - 1, ( ) 10 4 L - 1, L - 1 (, 1987).,,., N /P., N /P 16 1 ( Kim, 2000), N /P16 1, P, P. N / P16 1,N, N. 6 ( Integral assessment methodology of nutrition status), ( I E, i ), ( I E ),, ( 3). I E = n i =1 W i I E, i (3), I E ; I E, i i ; W i i ; i , I E 0,,. (, 1990), ( 4).

6 6 : Table 4 Grading standards for integral nutrition status index for channel type reservoirs ( I E ) (Conclusions) ( ) ( ) ( ) 1),,.,. 2) TP TNa,,. 3) 3, 3.. 4),,,. : W aterd ivision of ScottW ilson L td. References: He Z H A trophic classification of the lakes and reserviors in China [ J ]. Journal of Dalian Fisheries University, ( 1 ) : 1 10 ( in Chinese) Jin X C, Tu Q Y Lake eutrophication investigation standard (2nd edition) [ M ]. Beijing: China Environmental Science Press,, ( in Chinese) Kim B, Kwangsoon C, Chulgoo K, et al Effects of the summer monsoon on the distribution and loading of organic carbon in a deep reservoir, Lake Soyang, Korea [ J ]. W at Res, 34 ( 14 ) : L i J X, L iao W G Control Indexes for Comp rehensive Prevention of Eutrophication[ J ]. W ater Resources Protection, (2) : 4 5 ( in Chinese) L in Q Q, Han B P Reservoir limnology and its app lication in water quality management: An overview [ J ]. Acta Ecologica Sinica, 21 (6) : ( in Chinese) Novics V I, Laa S S Factors influencing lake recovery from etrophication2the case of basin of lake Balaton [ J ]. W at Res, 35 (3), Peng J X Eutrophication of water quality and controls [ M ]. Beijing: China Environmental Science Press, ( in Chinese) Russo R C Development of marine water quality criteria for the USA [ J ]. Marine Pollution Bulletin, 45: Smeltzer E, W alker W W, Garrison V Eleven years of lake eutrophicatioon monitoring in Vermont: A critical evaluation. Enhancing State s Lake Management Program s [ R ]. U S Environmental Protection Agency and North American Lake Management Society, Strskraba M, Tundisi J G Guidelines of Lake Management Volume 9. Reservoir W ater Quality Management [ M ]. International lake Environment Comm ittee, 1 60 US EPA Nationl Strategy for the Development of Regional US EPA. Nutrient Criteria[ R ]. EPA28222R Nutrient Criteria Technical Gruidance Manual Lake and Reservoirs ( First Edition) [ R ]. EPA28222B W ang M C, L iu X Q, Zhang J H Evaluate method and classification standard on lake eutrophication [ J ]. Environmental Monitoring in China, 18 (5) : ( in Chinese) W u H J, Guo S L The Effect of Hydrological Regime on Phytoplankton Community [ J ]. Advances in W ater Science, 12 (1) : ( in Chinese) Xu N, Duan S S, L in Q Q, et al. In: Analysis on nitrogen pollution and eutrophication of the large and medium reservoirs for water supply in Guangdong Province[ J ]. Chinese Journal of Ecology, 23 (3) : ( in Chinese) : [ J ]., (1) : 1 10, ( 2 ). :, , [ J ]., (2) : 4 5, [ J ]., 21 (6) : [M ]. :, 64 69,,. [ J ]., 18 (5) : 47 49, [ J ]., 12 (1) : 51 56,,, [ J ]., 23 (3) : 63 67