tSSN O912−7410

No．5 NOVEMBER1987

け．ヾリJ こ†て J†J†す
JⅣrE月〃drJO〃Aエ エAgE EⅣW月0〃〟EⅣr CO〟〟JrTEE FOぴⅣかArJOⅣ一For Better Lake Management￣This NewsEetteris al＄O aVailabEeinJapanese．

LAUNCH［NG OF LLEC FOUNDAT10N
lnordertoestablishabasisforit＄aCtivities，incIuding
SeCuTmg aStable andindependentsoLJrCe Ofrevenue，lntemationa（LakeEnvironmentCommittee（lLEC）spentmonthsstrivingtomeettherequirement＄Ofbecominga
toundation．

OnSeptemberlstofthisyear，thelLEC Foundation
Cameinto existence through grants of competent au−
thorities such as the Environment Agency and theMini＄tryOfForeignAffairsoftheJapaneseGovernment・
lLEC Foundation waslaunched as a public−SerVice
COrPOration，and the articles of association for the
COnStitutionofthefoundationweredrawnuptobesuited
totheCivilLawofJapan，anditsorganizationwa＄a［soarranged by the time．
1LEC Foundation made a start with aninitialendow−
ment of200mi ion yen，Which wa＄aPPrOPriated by
Shi白a PrefecturalGovernment．andintend＄tO makeefforts continuously toincreaseits endowment with
COntributions from nongovernmentalfirms・Outlinesofthe FoundationdescribedintheArticlesof
Association are as fol】owlng：
1．Objectives and Business
ILEC Foundation s objectives and business are pro−
POrtionate to those of］LEC，and are a＄fo ows：
（Objectives）

The objectives of the Foundation are to promote
intemationalcooperationin con＄erVation oflake en−
Vironments；tOPrOmOteenVironmerrta ysoundmanage−
mentofworldlakesthroughencouragFnglnVeStigations（3）Toa＄Sistthedeve10Pingcountrieswiththeenviron−mentalmanagement oflakes姦nd the planning ofenvironmerItally sound deve10Pment Oflakes．
（4）Topromotetrainingontechnicalandmanagemental
aspects oflake environments・（5）To promoteinterchange with the governmental
agencies．regIOnalagencies，andresearchinstitutesin
the world in order to achieve the objectives of theFoundation．

（6）ToundertakeanyotherbusinesswMchwi11becorTle
necessarytoachievetheobjectivesoftheFoundation．

2．The Board of Directors
Asanadministrativeorganization，theBoardofDirec：
torsis providedin the FoLJndation．
Mr．KeiYamazaki，aformerVice−MinisterofEnviron−
mentAgencywasappointedaschairpersonoftheBoard
Of Directors，rePreSentative of the Foundation．
Firstmeeting ofthe Board of Directorswas held on
September7th，1987，atBiwako Hotel，Otsu，Japan．1nthemeeting，thewaysofmanagementofproperties，theOPerative rule＄Of the Foundation，and．so forth werede￠篭ded．

（Members of the Board
ChaiTPerSOn
Mr．KeiYamazaki
Vice−Chairperson
Mr．TakeshiGoda
Vice−Chairper＄0nMichio Hashimoto
Managlng Director
ShigeakiAkutagawa

and research on rationaland suitable method＄Of haト

monybetweenenvironmentalmanagementandsuitabledevelopment；and to promote theintemationalex−
Change scientific knowledges ofthelake environmet・

Ditector Keikichi Kihara
Director Tatuo K汀a（Busines＄）（1）Toco ectandpTOVideinformation，dataonenviron−mentalaspects oflakesin allparts of the worrd．
（2）Topromotescientificresearchontheenvironmental
management oflakes．

DirectorYatsuka Saijo
Dire（班Or Ko坤Muraoka

Of Dire（）br岳）

Former Vice−Mini＄ter，Environ−ment Agency
Professor．Setunan Univ．
PoIicy Advisor on Environment．
Shiga Prefectural Government
Director，DeparlmentofCivilfife
and Environment，Shiga Pre−
fectural Government
Professor，Chiba Univ．
Director，Lake Biwa ResearchInstitute，ShigaPrefecturalGov−ernment
ProfessoT，Nagoya Univ．
Director，WaterandSoilEnviron−
mentDivision，TheNationallnsti−
tute for EnvironmentalStudies

DirectorAkio Morishima Professor，Nagoya Univ．
3．Counciland CounciIor
Councjland Counci10r are brovided to examine（orinspect）the operation ofthe Board of Directors．

ionsof Diet Membersfor Prob−
1em＄On GlobalEnvironment

BUREAU MEETINGIN COPENHAGEN（Counci10rS）
Chairperson，EngineerIng and−Environment Committee．WorId
Federation of Englneering
Organzation＄（WFEO）
Prof．Nobuo Egami
Director．The NationalInstitutefor Environmental Studies
Prot．lchiro Kato
Advisorto EnvironmentAgency；
EmeritusProfessor，Tokyo Univ．
Prot．」‡ro Kondo
President，S（）ience Councilof
Japan；Emeritus Professor，Tokyo Univ．
Prof．ShuichiMori
Rector，Shiga Univ．；Emeritus
Professor，Kyoto Univ．
Emeritus Professor，Kyoto Univ．
Prot．Azuma Okuda
Former Representative，Perma−
Mr．Senkuro Saiki
nentMissionofJapantoUNEP．
Prof．Tsunahide Shidei
Emeritus Professor，Kyoto Univ．
Mr．Minoru Ueda
15th MinisteT．Environment
AgencyProf．Richard A．Vollenweider
SeniorScientist，CanadaCentre
forlnland Waters；Professor at
Dr．C．E．Baure

M（：Master Univ．

Prof．Kiyoo Wadachi

President，CentralEnvironmentalPo‖ut弓0n Council

TheBureauMeetingoflLECwasheldatAdmiralHotelin Copenhagen on the23rd and25th of September，
1987．
The bureau members discussed and approved thefollowing items as the agenda for the next Generai
Meeting．Other ragular members who werein
CopenhagenfortheGujdelineworkshopalsotookparLin the meeting as observers．
1tem discussed and approved（Agenda）were
1 Report of the establishment of lLEC Foundation
l−1Reportofthe estabIishmentoflLEC Foundation
ト2 Draft amendment ofConstitution oflLECforthe
Scientific Committeein thelLEC Foundation
l−3 TT，anSference of the assets oflLEC toILEC
Foundatibn
l−4 Utilization of PortableWater−Qualitylnstruments（kits）

2 lLEC Projects
2−11LEC／UNEPJointProject
PromotiohofEnviron−rTIenta y Sound Management of Lakes
2−2 UNEP／ILEC／UNCRDJoint Project Experts
Group Workshop
2−3 0utIine of Survey of the State of World Lakeln−depth case
3ILEC scooperationintheThirdWorld LakeConfeT−

4．Scientific Committee
encellBalaton 88
The Committeeisservesasthe advisorycommittee
On SCientific matters ofthe business ofthe Foundation．
4 Contribution for UNEP s Project of Compilation
All fifteen members of the Scientific Committee had
Lakes of the World
PreViousIy been members oflLEC，and Prof．K汀a，5 Requests forlLEC s cooperation from other orga−
nization
PreViousILEC sChairpersonisappohtedasachairpeT−
SOnin the same manner．
5−1Request forILEC s cooperation from Chinese
Research Academy of Environmental Science
5．Advi＄Or＄
5T2 Reque＄tfor rLEC s cooperationfrom SILin theAdvisoTSare also provided foTtheadvisorygroup on
African Great Lakes Workshop focused on L
managlng matterS Ofthe Foundaion，andfoIlowlngfive
Tanganyika
5−3 RequestforlLEC scooperationfromTanzaniafor
Pre＄OnS Were aPPOinted・（Advi＄OrS）
Mtera Reservioir Management Project
Mr，BunbeiHara
NationalDietMember【Houseof
6 Proposalsfor Lake EnvirormentYouth Educational
Councilors）；13th Minister，En・
Programme（lLECYouthProgramme）from］LECMem−
YirOnment Agencybers（Prof・S．E．J8rgenSenandProf．C．E，Bauer
Mr，Osamu Uno
President，KansaiFederation of
7 NomineesfoT，nextlLECScientificCommittee Mem−
bers
Economic Organiz帥0nS
8 Contents of FLEC NEWSLETTER No，4
Mr・Minoru hlaba
Governor，Shiga Prefectural
Pa「ticipants of the Meeting
Government
Mr．SukioIwatare
NationaIDietMember（Houseof（B山reau Members）
Representatives）；Secretary，Un−
Prof．T．Kira，Prof．C．E．Bauer，Prof．R．A．VoIIenweider，Prof．T．Goda，
ions of DietMembersfor Nature
ConseⅣalion
Prof．M．Hashimoto，（ObseⅣerS）
Mr．Ma＄ayOShiTakemura NationalDietMernber（Hou＄eOf
Representatives）；Secretary，Un−
PTOf，H．LOffler，Prof．S．E．JG？rgenSen，

2

Prof・J・G．Tundisi，Prof．Liu H．，Dr．ZhangJ．
（Adviser of Secretariat）
Mr．H．Sakimura：Chief，SLJPPOrtingMeasuresBranch．
UNEP（Seく〉retariat）

Mr．H．Kotani，Mr．T．Nagase

GUlDELlNE WORKSHOP IN COPENHAGEN

ln the meeting，WayS Of promoting a cooperative
rerationship among Hungary／UNEP／［LEC were dis−
CUSSed．
Participantsin the meeting were；
Hungary
Dr・J如10＄Salanki（Chairperson of the Organizing
Committee，Director，Balaton LirTlnologICaIRe−
SearChln＄titute，Vice−PreSident of．UBS．，lLEC
Member）
Dr．S．Herodec，Ms．EszterSgovenyiM．A．，Dr．Kar
IyMisley，Ms．JuditStefko−Vermus，Ms．EvaBlassa，
Mr．Se eilvan

The working discussjon for comprllng the Guideline
Booksonsound rTlanagementOflake＄andtheircatch−
UNEP
mentareaswasheldatAdmiralHotelinCopenhagenon
the24th and25th of September，1987．
Mr．Hisao SakimLJra（Chief of Supporting Measures
Branch of UNEP，AdvisortoILEC）
1nthediscussion，the Keysubjectsto beincludedin
lLEC
the Guideline BookI，titIed山Watershed and Littoral
Lake Management ，and Guideline BookI［，titled Prof．T．Kira（Chairman oflLEC），Dr．C．E．Bauer．Socio−EconomicAspect＄OfLakeandTheirCatchment（Vice−ChairrnanoflLEC），Prof．T．Goda（Trea＄urerOf
Area＄，W馴 e a！】reed upon．

lLEC），Mr．H．Kotani（SeniorSecretaryofILEC），Mr．
T．Nagase（Secretary oflLEC）

ParEicipants df the discussion were：
Prof．）釧■genSen（RepresentativetheGuidefineWork−
ingGroup），Prof．）．G，Tundisi，Prof．R．A．Vo‖enweider
andprof．LiuH．asthemembersoftheWorkingGroup；and Prof．Kira，Prof．T．Goda，Dr．C．E．Bauer，Prof．H． SURVEY OF THE STATE
L6ffler，Dr．M．Hashimoto，Dr．ZhangJ．and Mr．H．
OF WORLD LAKES−1NTERIM
Sakimura a＄COnSUltant5．

CONSULTAT10N ON THE3RD WORLD
LAKE CONFERENCEREPORTI PUBLISHED
The rnterim ReportI，a Part Of the output of thelLEC／UNEPSurveyoftheStateofWorldLakesProject
has been published．
ThePro］ectwasplannedandpromotedtoprovidethe
fundamentallyimporEantinformation concerning world
lakesandtheirbasirlS．TheoutputoftheproJeCt＄hould
be of great heIp not only to the administrators andresearchers whoareinvoIvedin the management of
individuallakes，butaIsoformakinggeneralguideline
Oflake mana！】ement．

TheProLectisalsointendedtodeve10Ptheobjectives
Of Data Book ofWorld Lakes edited by LBRl（Lake
BiwaResearchlnstitute，ShigaPrefecturalGovernment）
andNIRA（NationallnstituteforResearchAdvancement）
forLECS 84（ShigaConference 840nConservationand
Management of World Lakes Environment）．
As for the method of data co ection，qUeStionnaire
Sheetswerecircu（atedtoassumeddatasourcessuchas
researchers and administrative agencies of various
COuntries．Therefore，the Reportis made with the
COOPeration and co aborations of many contributors，
ThelLEC Bureau Members had a consultative meet−
Main dataitems dealt within the Report are：
A．Location
1ngWiththeexecutivepreparatorymembersofthe3rd
Wor］d Lake Conference， Balaton 88，at Festetics
8．lntroductory description of thelakes
Castle，the conference site of Balaton 88，Keszthely， C．Physicaldimensior［SHungaryonthe29th ofSepterrlber，1987，fo owingtheD．Physiogrphic feature
Bureau Meetingin Copenhagen．
E．Lake water quarity

3

F．BioIoglCalfeaturesAsia；Yasuo SMnazu， Soft Approach to Watershed
Management−Case Histories fromJapan with Specjal
G．Socioreconomic conditions
H．Lake u川iazation
focusonthetransferabilityoftheJapane＄eExperience．
l．Deterioration oflake environment and hazards
The program wi be highlighted bythe presentationand discus＄ion of the fol10Wlng nine case studie＄：J．Wastewater treatment
K．1mprovement worksin theIake
Lobo−8roa Reservoirandits upperCatchmentAreain
Brazi［，DianChiLakeinChina，SaglingDam／Citarumand
L．Deve10Pment Plans
M・Legislativeandinstitutionalmeasuresforupgrad一
its Upstream Areainlndonesia，LakeVictoria Basinin
Ing thelake environment
Kenya．Laguna Lake Regionin PMlippines，Songkhla
Lake Basinin Thailand，Kasumlgaura Lake Basinin
N．Sources of data
Japan，Yaha9iRiverBasininJapanandLakeBiwaBasinNatural］y，SOmeOftheseitemsdo notapplytoevery
inJapan．
lake．
The format ofthis Reportis an A−4size，IooseTleaf
OneoftheprimaTγgOalsoftheworkshopWil＝）etO
firingsystem，COnVenientforeasyadditionandrepFace−
discusswaysofdeve10Pingthepaperspresentedduring
ment of datain the future．
theworkshopintoameanlrIgfulsetoftrainlngmaterials
forwater resources managers，Planners，and adminis−
Co ected data of almost fiftylakes，including Lake
Biwa areincludedin thislnterim−Report．Anin−depth
trators．
Study ar［d examination of specific aspects or phe−
FieFdtripstoLakeBiwaandtoYahagiRiver8asinwilr
nomenonconcernlg＄OmeOfthese．1akesisscheduled，al＄O befeatured during the12−dayworkshop，the first
ThelnterirTl−Repor（WillbecirculatedinFebruary，1988
halfofwhichwirlbeheldatLakeBiwaResearchlnstitutetoindividuaIsandorganizationsinvoIvedinlakeenviron−inOtsuandthesecondhaIfatUNCRDofficeinNagoya．
mentalmanagementandlake researchinstitute＄Ofthe
For furtherinformation，Please contact either：
WOrld．
Dire（）tOr【For more detailedinformation，Please ca‖thelLEC
United Nations Centre for Regional Development
Nagonol−47−l，Nakamura−ku，Nagoya450，Japan
Secretriat）．
T￠lephone：052−561−9378
CabIe：UNCENTRE NAGOYA
Telex：
J59620 UNCENTRE
1ST EXPERT GROUP WORKSHOP：

On River／Lake Basin Approach toEnvironmenta y Sound Management
Of Water Resources

Or：

Chairper＄0∩
lnternational Lalte Environment Committee Foundation
4−1−1，Kyomachi，Otsu，Shiga520，Japan
Telephone：0775−25−1076
CabIe：
lLEC OTSU
TeIex：
54648501LECJAn Expert Group Workshop on River／Lake Basin
Approach to Environmentally Sound Management of
Water ResoLJrCe＄Willbe held under theJOint spon−
SOrShipofthelnternationalLake EnvironmentCommit−
tee（rLEC）．the United Nations Centre for Regional
Deve10Pment（UNCRD），andtheUnitedNationsEnviron−
mentProgramme（UNEP）fromFebruary8thto19th，1988
in Otsu and Nagoya，Japan．
Pastexperiencesinmanycountriesprovideexampres
Ofwaterresourcesdeve10PmentPrOJeCtSinwhichmaJOr
damsandreservoirsarebuilt，WithlittFeconsiderationof
theresultantenvironmerltaland＄OCialimpactsthrough−
OUtthedrainagebasin．Solutionstothistypeofproblem
Willbe discussed by some30＄Cientists，re＄earCher＄，Water reSOurCeS administrators，and planners．
Apane10finternationalexpertswillpresentresearch
PaPerSCOVenngkeyconceptsandmethodo10gleSOfthe
drainagebasinwideapproachtoenvironmentallysoundmanagement of water resources：e．g．TakeshiGoda，
Water EnvironmentalMonitoring andlndicators；
Maynard M・Hufschmidt，A conceptuaIFrarTleWOrk forRiver／Lake Basin Approach to Water Resources
Management；Bhdu N・Lohani，Environmentallmpact
AssessmentofWaterResourcesDevelopmentProjects−
Practices and Proceduresin DeveIoping Countriesin
4￣Monthly MeetinglnlLEC StafF Room−UNCRD／lLEC／UNEPJoint Expert Group Workshop Report
Published
TheUnitedNationsCentreforRegionalDeveropment（UNCRD）ha＄Publishedthereportofthe ExpertGroup
Work＄hop on Environment Planning Management for
Localand RegionaIDevelopment：Focus on TTaining
Aspects Derived from Studies oflnland Waters．The
WOrkshopheIdinOtsuandNagoya，Japanbetweenthe
lOthand21stofNovember，1987 ，WaSLojntIysponsoTed
UNCRD，Thelnternationa＝＿akeEnvironmentCommittee（］LEC），and United Nations Environment Programme（UNEP）．

Thi＄isthefirst pubIished reporL resultingfromlLEC
trainlng PrOJeCt aCtivities．
This reportconsists dftwo parts．Par（1presentsthe
guidelines for deve10Pment tTainlng PrOgramrTle＄ On
EnvironmentalPlanning and mar［agementfor10Calandregionaldevelopment，focusing oninland waters；andPart2isthesummaryofproceedingsoftheWorkshop．
ln this report，the proJeCt CaSe WOrk methodis the
SUggeSted Trainlng Approach and Method ，andits
COnCePtUalmode）is schematically shownin Figurel．

Figurel：ConceptualMode10fProjectCaseWorkBasedSeminarTrainingApproachShowingthelnter−

relationshipofDifferentProgrammelnputs

PRE−SEMINAR PHASE

Ipropo「dll馴＝川d拍l01¶柑l】on〉

Source：GunterTharun， Approaches and Methods ofTrain■ngin EnviromentaIPIanning and Managementfor Localand Re−
gionalDevelopment （PaperpresentedattheExpertGroupWorkshoponEnvironmentalPlannhgandManagementfor
Localand RegionalDeveIopment：
Focus on Training Aspects Derived from Studies oflnland Water Management．Otsu and Nagoya，Japan，10q21
November1986：UNCRD，虻EC，and UNEP）．

LAKES OF THE WORLD
LAKE BALATON

History．and geography

72：11：3：1．

LakeBalatonisthelargestlakeinCentralEuropewith
Physical，Chemicaland bio】oglCal
asurfaceareaof596kn竜andanaveragedepthof3．2m．
Characteristjcs
Thelake has existedin a tectonic basin since thenorthern Europeanicecoverdisappeared．1tsareawas
Thelakeis normaIlycovered byicefortwo months．
halvedin1863，When a controIgate was built on the
Thewaterwarmsuprapidly，reaChingasummertemper−
Slngleoutf［ow，theSi6canal，COnneCtingthenortheastem atureof25℃．DuetothestrongwaveactionandfreT
basin with the Danube．
quentsed毒mentre−SuSPen＄ion，Only4％ofthetotalarea
Thewatershedareais5776kn弓incIudingthelake．To
is covered by higher vegetation．
thewestaroundtheZaIaRiveritismainlyhi y，a‖uvial
Thewatercontains400g m￣3caIcium，magneSium
land，tOthesouththereare10Whi sofsandandloesses．
and bicarbonate，andis opalescent as a result oftheWith some marshland，While the northern partis char− intense biogeniclime precIPitation．Theaverage pHi＄
acterized by higher hills of dolomitic limestone and8．4in the water and8．Oin theinterstitiaIwater．
VOIcanic roGk．
The allochtonous organic10adis negligiblein com−）1￣ry3m60×75（notalBekLwIfirothT
Parisonto the autochtonous production．The mostIim−
itingptantnutrientisusua yphosphorus，thephosphatebalances evaporation10＄Se＄，While the outfIow（400×106m2yr￣1）isroughlyequaLtotheprecipitation．Fourconcentration being constantly be．owl−2m9m−3・
SeParate basinsin thelake can be distingui＄hedin
ThebuIkoftheorganicmatterproducedismineralizedhydro10gicalandwaterqualityterms．Fromwesttoeast
by bacteria．Zoop［ankton production seemsto below
their surface areasincrease while tho＄e Of the corres−
relativetothegeneraltrophicstateoftheIake．Themost
POnding subwater−Sheds decrease，the ratios being
abundantfishisthebream．whilethetoppredatoristhePike−PerCh．

The eutrophication problem

The fir＄t Signs ofeutrophication were recognizedin
the1950s，buttheprocesshasspeededupsincetherate
1960s．Since then prirr［ary PrOduction and biomass of
Figure2：LAKE BALATONANDITSWATERSHED
algaehaveincreasedbya．factoroftwoandeightinthe
northeastern and southwestern basins，reSPeCtiveIy．
Sincespecieswith sma erce voIume＄have become
dominant，thenumberofalgaehasincreasedmuchmore
than the biomass（50times），At the present time thenortheastern areas are mesotrophic，WhiIe the south−
WeStern OneS are hypertrophic with regular summer
broom＄Of nitrogen−fixing blue−green algae．
Eutrophication cou！d be related to the order ofmagnitudeincreasein nutrient10ading during the past
20−25 yeaTS．56％ of the totalcatchment areais
Cultivated．Between1950and the mid1970s，fertilizer
use hasincreased60−70times．Up to30years ago
therewerenoIarge−SCalelivestockfarrn＄inthereg10n
at a＝，Whilein the earry1980s1000−1500k9d￣1
PhosphoruswasdischargedfromIlquidmanLJre．Anotherimportantfactorwasthefourteen−foldincreaseintour−
ism between1950 and1978，When the number ofVisitor−daysreached8million．Thedrinkingwatersupply
increased five−fofd between1960and1978．The de−
Ve10PmentOfthewastewatertreatmentsystemwasnot
lNFORMAT10N
SOraPida＄thatofthewatersuppIy，andphosphoruswas
not removed from the sewage．
Professor G．Fred Lee and R．AnneJones of the
Depar【mentofCiviland EnvironmentalEngineerIng Of
theNewJerseylnstituteofTechno10gyhavepublisheda
Water quality management＄ummary PaPer Of the OECD and post−OECD
trophicat事OnStUdieswhichappearedintheWorldHeaJthln1979the Water Management Development Pro−
Organization Water Quality BtJ etin．At this time．over
gramforLake BalatonWaSaCCePted bytheCounciIof
Mhisters．withatimescaIeof30yearsandabudgetof
400waterbodie＄10Catedin various part of the worId
make upthedatabaseforthismodelingapproach．The
otsi091−l8rfevcjbhT・）＄×37（F6arrestwaterqualitydeterioration，Whi（etheultimategoal Vo enwiderOECD EutrophicationStudyresultscan be
USed to predict theimpact of aIteredland LJ＄e andis to restore the water quality ofthe ea巾1960s．
WaSteWaterdischargesoneutrophication−relatedwaterrntheIastfewyears＄eWagehasbeendivertedfrom
about two thirds of the recreationaf area．Chemical
qualityinmanylakes，reSerVOiTSandestuaries．Drs．Le
PhosphorusremovaIhasbeenintroducedattheremain−
andJones paperprovidesguidance onthe use ofthis
ing treatment plants along the shoreline and in somemodeling approach for this purpose．
largetownsinthewatershed，rnthi＄Waythebio10gica y
Drs．Lee andJones have also published a paperinava‖ablephosphoru＄10adingofthewho［elake（0．78m9
EnvironmentalScience andTechnologydiscu＄＄ingthem￣2dLl）has been reduced by20％，including a68％
approach that may be used to eva［uate theimpact of
reductionin the northeastern basin．
detergentpho＄Phate bans orotherphosphorusIimita−
Thefirstpartofa70kn弓reservoirsystemwasopenedintionapproachesoneutrophication−reIatedwaterqua（ity，
1985atthenlOuthoftheZalaRivercontributing90％of
Theyhavereportedthatanexcessofa20％a］terationin
the available pho＄Phorusloading ofthe soLJthwestemthetotar phosphorus10adtoawaterbodyis neces＄ary
basin（3．69m9m▼2dayLl）．The reservoirretainsabout
beforethepubliccanexpecttoperceiveachangeinthe
50％of dissoIved phosphorus，aS With other，Sma］Ier
eutrophication related wate【qLJality ofthe waterbody．
reservoirscreatedonheavIFypolluted＄OutherninfFows．
Copies of Drs．Lee andJones papers devoted toFurther step＄include the contro10fllqLJid manurethese，aS Welr as other topICS，Can be obtained bydischaTgeS and a soilprotection program．
Writing：
Verals付会novics
G．FT ed Lee，Ph．D．，P．E．．
Balaton LirTlnOIogfCalResearchlnstitute
Distinguished ProfessorO†the
DepartmentofCivilandEnvironmentaIEngineering
NewJerseylnstitute of Techno］ogy
Hungarian Academy of Science
NewJersey O7102
7

Festetics Palace．

THIRDINTERNAT10NAL
CONFERENCE ON THE
CONSERVAT10N AND
MANAGEMENT OF LAKESBALATON 88
Septemberll−17，1988

PRELCONFERENCE SEMINAR
SeptemberlO−11
ModellingofLakes wirlbethe＄Ubjectofaseminar
COnductedbyProfessorS．E．Jorgensen，Ofthelntemaq
tionalSociety of EcologicalModeIling．

The Balaton 88 Conferencewi be heldjnthetowr．
OfKeszthely，the so−Ca‖ed capita［ of Lake Ba（aton．
Ke＄ZtheIy has beeninhabited continuously since theneolithic age，yet the present popLJlationis a mere
23，000．
1n1797，the enlightened Count Festetics founded
Europe s first agnculturalinstitute，PreSently known a＄
the UniversityofAgriculturalSciences．Duringthe19th
CentUry Keszthelydeve）opedinto animportantcu］tural

POST−CONFERENCE STUDY TOUR
September17−19
ThisprogrammebeginswithavisittoVeIenceiTo，aPOPUFar recreationallake near Budapest．Althoughits
SUrfacecovers26squarek‡10meterS．1tsmeandepthis
On（ylto 2meters．Large portions of thelake are
COVered by reeds wllich are richin waterTfowland
botanicalrarities．A sediment removalprogramme ha＄madeotherportionsofthelakesuitableforswimm■ng

Center．

The conference wi be heldin the famed Festetics
Palace・This beautifulbuilding was constructedin the
18thcenturyinthebaroquestyte，andhasmaintainedits
PreSent form since the19th century．
ADDED ATTRACT10NS
ln addition to the scientific programme and plenary
SeSSions．the BaIaton 88 programme w‖incIude a
JOUmeytOtheBalatonLimnoIogICaIResearchlnstituteof
theHungarianAcademyofScience＄inthecityofTihany，
foE10Wed by dinner and wine−taStingin the famousWine−grOWlng reg10n Of Badacsony．
Afieldtripto KisBaIaton reservoirisalsoscheduled．
ThesocialprogrammeindIudesawelcomlng reCeP−
tion，aCOnCert（extracharge required），and afareweII
Parけ．

．S止opsretawrehtodna

Thefo owIng day beginswith aguided sightseelng
tourof Budapest，fo owed byan excursionto Danube
Bend．Participants of the excursion wiIlbe able toappreciatethebeatyoftheIandscapeandtheeco10gy，
as we as the economicimporlancelargest riverin Europe．The historicaltowns ofSzentendre and Visegrad wiIIalso be visited．
Registration forms and additionaldetail＄COnCernmg
BaIaton 88 wi be made ava‖able by writhlg tO：
Congres＄Bureau MTESZ
P．0．Box451，H−1372
Budapest，Hungary
CALL FOR ARTICLESThose who wish to contribute to rLEC Newsletter are
invited to send manuscripts to the secretariat．

Participantsareencouragedtobringtheirwives．The
Ladies Programme incIudes both of the outings
mentionedabove，thesocialevents，andaguidedtourof

上ⅣrE月MTJO〟Aエ 上A片E E〟Ⅷ0Ⅳ〟E〃r CO〟〟JrrEE ア0ぴⅣpArJOⅣ
4ト1Ⅰ（yomacbi．Otsu．Shiga520，Japan
Tel：077525−1076Tl：く：5464850ILECJFax：0775−23−1581
CabLe：ILEC OTSU