Description
Description (LV): Laukesas) are a part of NATURA 2000 network. New data will be gathered during water quality and quantity monitoring, and detailed biological and fish surveys. Then, combining new data with in depth analysis of lake catchments (such as identification of possible surface water and groundwater interaction and mathematical procedures for identification and quantification of pollution sources) the ecological status of five lakes will be evaluated. As well new joint methodology for lake ecosystem health assessment will be developed and then tested in pilot area - Garais/Ilgė lake. Finally, harmonized Latvia-Lithuania monitoring program (MP) and Program of Measures (PoM) will be established to ensure sustainability of project results and further improvement of water quality.
LLI-533 Latvijas-Lietuvas pārrobežu upju un ezeru ūdensobjektu vienota pārvaldība (TRANSWAT)
Projekta TRANSWAT mērķis ir nodrošināt vienotu pārrobežu upju un ezeru ūdensobjektu novērtēšanu un apsaimniekošanu upēm un ezeriem, kuru hidromorfoloģiskā un ekoloģiskā kvalitāte rada risku nesasniegt ES Ūdens struktūrdirektīvas (ŪSD) prasības.
Trīs pārrobežu upju baseini (Venta, Lielupe un daļa no Daugavas/Dauguva baseina) atrodas programmas teritorijā, kur daudzi upju un ezeru ūdensobjekti nesasniedz labu ekoloģisko kvalitāti. Daži upju ūdensobjekti ir klasificēti kā stipri pārveidoti, jo tajos darbojas hidroelektrostaciju (HES) kaskādes, kuru darbība izmaina upju dabisko hidroloģisko režīmu. Ezeru ūdensobjekti pārrobežas teritorijā pārsvarā ir izdalīti kā atsevišķi ūdensobjekti tikai Latvijā – tā rezultātā ūdens kvalitātes monitorings un slodžu analīze šiem ūdensobjektiem tiek veikti tikai Latvijas teritorijā.
Projekts ietver divus komponentus: (1) HES kaskāžu novērtēšana un pārvaldība (2) pārrobežu ezeru ekoloģiskās kvalitātes un ekosistēmas veselības novērtēšana, un pārvaldība.
Pirmajā komponentā aktivitātes tiks veiktas, lai novērtētu HES kaskāžu ietekmi uz regulēto upju ekoloģisko caurplūdumu (E-flow) Ventas baseinā un ierosinātu grozījumus valsts tiesību aktos, lai novērstu HES kaskāžu caurplūduma regulēšanās negatīvo ietekmi. Lauka pētījumos tiks iegūti hidromorfoloģiskie un zivju dati, kas nepieciešami ekoloģiskā caurplūduma modelēšanai Lietuvā (5 HES uz Varduvas upes) un Latvijā (2 HES uz Loša upes un 3 HES uz Cieceres upes). Populārākais E-flow aprēķinu modelis, kas atbilst ŪSD prasībām (MesoHABSIM) tiks izmantots. TRANSWAT projektā tiks izmantota harmonizētā E-flow modelēšanas pieeja, kas tika izstrādāta projektā ECOFLOW. Projekta ietvaros E-flow aprēķini tiks veikti arī tīmekļa modelēšanas platformā, kura tiks izstrādāta nesen uzsāktajā integrētajā projektā LIFE GoodWater IP. Pamatojoties uz ekoloģiskā caurplūduma noteikšanas rezultātiem, tiks veikta HES darbības modelēšana kaskādē, izmantojot HEC-RAS modeli (programmatūru, kas modelē ūdens plūsmas tecējumu dabiskās upēs un kanālos), lai nodrošinātu ekoloģiskā caurplūduma režīmu pēc katras HES un ilgtspējīgu ūdens resursu izmantošanu. Visbeidzot, balstoties uz projekta rezultātiem un ieteikumiem, tiks ierosināti grozījumi valsts tiesību aktos, lai novērstu upju caurplūduma regulēšanas negatīvo ietekmi.
Otrajā komponentā tiks novērtēta piecu pārrobežas ezeru ekoloģiskā kvalitāte Lielupes baseinā (Garais/Ilgė) un Daugavas/Dauguva upju baseinā (Galiņu/Salna, Kumpinišķu/Kampiniskiai un Lauceses/Laukesas un Skirnas). Trīs ezeri (Galiņu/Salna, Kumpinišķu/Kampiniskiai un Lauceses
Read more Description (LT): Laukesas) atrodas NATURA 2000 teritorijā. Ezeros tiks veikts ūdens kvalitātes un kvantitātes monitorings, detalizēti zivju un citu bioloģisko kvalitātes elementu pētījumi. Izmantojot iegūtos ezeru izpētes rezultātus un ezeru sateces baseinu analīzi (virszemes un gruntsūdeņu mijiedarbības analīzi un piesārņojuma avotu sadalījuma modelēšanu), tiks novērtēts ezeru ekoloģiskais stāvoklis. Vienota ezeru ekosistēmas veselības stāvokļa novērtēšanas metodika tiks izstrādāta un izmēģināta pilotteritorijā – Garais/Ilgė ezerā. Tiks izstrādātas saskaņotas Latvijas-Lietuvas ūdens kvalitātes Monitoringa Programmas (MP) un Pasākumu Programmas (PP), lai nodrošinātu projekta rezultātu ilgtspēju un ūdeņu kvalitātes turpmāku uzlabošanos.
LLI-533 Bendras Latvijos ir Lietuvos tarpvalstybinių upių ir ežerų vandens telkinių valdymas (TRANSWAT)
Projekto „TRANSWAT“ tikslas - užtikrinti tarpvalstybinių upių ir ežerų vandens telkinių, kurių hidromorfologinė ir (arba) ekologinė kokybė gali neatitikti ES Vandens direktyvos (VPD) reikalavimų, bendrą vertinimą ir valdymą.
Programos teritorijoje yra trys Latvijos-Lietuvos pasienio upių baseinai (Venta, Lielupė ir dalis Dauguvos), kuriuose daugelio upių ir ežerų būklė neatitinka “geros ekologinės būklės“ kriterijų. Kai kurios upės netgi priskiriamos prie smarkiai modifikuotų vandens telkinių dėl pakitusių gamtinių sąlygų, nes jų vandens režimą reguliuoja hidroelektrinių (HE) kaskados. Šiuo metu LV-LT pasienyje esantys ežerai dažniausiai tik Latvijoje apibūdinami kaip vandens telkiniai. Todėl šių ežerų vandens kokybės monitoringas ir poveikių analizė vykdomi tik Latvijoje.
Projektą sudarys dvi tyrimų dalys: (1) upių, reguliuojamų HE kaskadomis, vertinimas ir valdymas bei (2) pasienio ežerų ekologinės būklės ir jų ekosistemų gerovės vertinimas ir valdymas.
Pirmoje tyrimų dalyje bus nustatytas ekologinis debitas (E-flow) LT – LV pasienio Ventos baseino upėse, kurias reguliuoja HE kaskados, bei siūlomi nacionalinių vandens įstatymų pakeitimai tokių upių reguliavimo poveikiui švelninti. Lauko tyrimų metu bus renkami hidromorfologiniai ir žuvų duomenys ekologiniam debitui (E-flow) modeliuoti Lietuvoje (Varduvos upėje su 5 HE) bei Latvijoje (Losis upėje su 2 HE ir Ciecere upėje su 3 HE). Po to bus naudojamas populiariausias ekologinio debito skaičiavimams skirtas modelis (MesoHABSIM), atitinkantis VPD keliamus reikalavimus. TRANSWAT projekte bus naudojama “Interreg Latvia-Lithuania project (ECOFLOW)" sukurta harmonizuota metodika, skirta ekologiniam debitui modeliuoti. Ekologinio debito skaičiavimai taip pat bus atliekami internetinėje modeliavimo platformoje, kuri bus sukurta neseniai pradėtame projekte “LIFE GoodWater IP project”. Vadovaujantis ekologinio debito vertinimo rezultatais, HE kaskados veikla bus modeliuojama naudojant HEC-RAS modelį (kompiuterinė programa skirta vandens telkinių hidrauliniam modeliavimui), siekiant užtikrinti ekologinį režimą žemiau kiekvienos HE ir tvarų vandens telkinių valdymą. Vadovaujantis gautais rezultatais ir rekomendacijomis, bus pasiūlyti nacionalinių vandens įstatymų pakeitimai, siekiant sušvelninti upių tėkmės reguliavimo poveikį.
Antroje tyrimų dalyje bus vertinama penkių pasienio ežerų ekologinė būklė Lielupės (Gaiaris/Ilgė) ir Dauguvos (Galinu/Salna, Kumpinisku/Kampiniskiai, Lauceses/Laukesas ir Skirnas) upių baseinuose. Trys ežerai (Galinu/Salna, Kumpinisku/Kampiniskiai, Lauceses/Laukesas) priklauso NATURA 2000 tinklui. Nauji duomenys bus renkami vykdant vandens kokybės ir kiekybės monitoringą bei išsamius biologinius ir žuvų tyrimus. Apjungus naujus duomenis su išsamia ežerų baseinų analize (paviršinio ir požeminio vandens sąveikos vertinimas ir taršos šaltinių kiekybinė analizė matematinėmis procedūromis), bus nustatyta penkių ežerų ekologinė būklė. Bendra ežerų ekosistemos gerovės vertinimo metodika bus sukurta ir patikrinta pilotiniame ežere Garais/Ilgė. Norint užtikrinti projekto rezultatų tvarumą ir tolesnį vandens kokybės gerinimą, bus sukurta harmonizuota Latvijos-Lietuvos monitoringo programa (MP) ir priemonių programa (PoM).
Read more Description (EN): The aim of TRANSWAT project is to ensure joint assessment and management of trans-boundary river and lake water bodies which hydromorphological and/or ecological quality pose a risk for not meeting the EU Water Framework Directive (WFD) requirements.
Three trans-boundary river basins (Venta, Lielupe and part of Daugava/Dauguva) are in the programme area where ecological status of many river and lake water bodies is below "good". Moreover, some river bodies are designated as "heavily modified" due to substantially altered natural conditions - the result of flow regime regulation by hydro power plants (HPPs) cascades. Right now mainly in Latvia lakes located on cross-border area between Latvia and Lithuania are delineated as water bodies. Consequently, water quality monitoring and pressure analysis of these lakes is carried out primarily on Latvian side.
Project will address two main components: (1) assessment and management of rivers affected by HPP's cascades and (2) estimation and management of trans-boundary lakes ecological status and ecosystem health.
First component will cover evaluation of ecological flow (E-flow) in trans-boundary rivers regulated by HPPs cascades within Venta River Basin and proposal of amendment to national water legislation for mitigation of impacts created by such river flow regulation. During the field surveys hydomorphological and fish data will be collected for E-flow modelling needs in Lithuania (Varduva River, 5 HPPs) and Latvia (Losis River, 2 HPPs and Ciecere River, 3 HPPs). After, the most popular model for E-flow calculations in line with WFD's requirements (MesoHABSIM) will be used. TRANSWAT project will use E-flow modeling harmonized approach previously developed by project "ECOFLOW". As well the project will perform E-flow calculations in web-based modelling platform which will be created by recently started LIFE GoodWater IP project. Based on E-flow assessment results, the modeling of HPP operations in cascade will be done using HEC-RAS model (a computer program that models the hydraulics of water flow through natural rivers and other channels) to ensure the ecological regime downstream of each HPP and sustainable water resource management in general. Finally, an amendment to national water legislation for mitigation of impacts created by river flow regulation will be proposed based on developed results and recommendations.
Second component will assess ecological status of five trans-boundary lakes located in Lielupe (Gaiaris/Ilgė) and Daugava/Dauguva (Galinu/Salna, Kumpinisku/Kampiniskiai, Lauceses/Laukesas and Skirnas) river basins. Three lakes (Galinu/Salna, Kumpinisku/Kampiniskiai, Lauceses
Read more Achievements (EN): Sustainable water resources
The main objective of the EU Water Framework Directive is good ecological status of all water bodies and it requires more effective measures to improve water quality. Unfortunately, several water bodies in Latvia and Lithuania have a lower than good ecological quality but some of them are significantly affected by fluctuations in water levels caused by hydroelectric power plants cascades. Lakes, which are located on the LV-LT border, are mainly designated as water bodies only in Latvia, so water quality monitoring are mostly carried out on the sites of Latvia.
The project contributed to the co-operation between Latvian and Lithuanian scientists, municipalities and responsible state institutions in the improvement of water quality. Thus, as Latvian Ministry of Environmental Protection and Regional Development as Lithuanian Environment Protection Agency activated process of changing some Water Use Acts in both countries. Project collected actual information about lake ecological status that allowed to develop the harmonised Latvian-Lithuanian Program of Measures.
Project developed the innovative approach in Latvia and Lithuania to estimate the ecological regime for rivers regulated by HPP cascades. It assessed the ecosystem health of 5 transboundary lakes: Ilzu(Garais)/Ilģe, Kumpinišku / Kampiniskiai, Galiņu/Salna, Laucesas/Laukesas un Skirnas.
Environment Protection Agency of the Republic of Lithuania approved the selection of lake water bodies including 4 transboundary lakes in a List (Ilzu(Garais)/Ilģe, Kumpinišku / Kampiniskiai, Galiņu/Salna un Skirnas) and to the River Basin Management Plans of Lithuania for 2022-2027.
Project developed:
Harmonized Latvian – Lithuanian Program of measures;
Monitoring Program for transboundary lake water bodies;
Methodology of lake ecosystem health assessment;
Recommendations for necessary changes in national legislation of Latvia and Lithuania in the Water use.
A two-day stakeholders’ workshop was organized in the municipality of Daugavpils to discuss the results of the project in the lake water management on 29-30.08.2022. 42 experts from Augsdaugava Regional Authority, Environment Protection Agency, State Environmental Service, Daugavpils University and project institutions participated in that workshop. It included the study visit to one of the project lakes, where sampling methods of different lake ecological quality elements were demonstrated. Another stakeholders’ workshop was organized in the municipality of Saldus on 13.09.2022 to discuss the results of the project regarding the E-flow regime in regulated rivers. In the workshop participated Saldus Region Authority, Saldus municipality, State Environmental Service, Dzirnavu HPP owners, Kurzeme Planing Region, local administrations from Navdnieki, Zirnu Jaunlutrini un Nigrande parishes. In Lithuania the stakeholders’ meeting to present the project results was organized online. During final conference of the project that was held at the University of Latvia in Riga on 06.09.2022, the results of the project were discussed and scientific information was exchanged. It was attended by 62 participants from both countries.
Here following reports can be found:
River Habitat survey Report
Report of E-flow regime modelling for HPPs cascades prepared in English and translated to Latvian
LV-LT Recommendations for the amendment to national water legislations
Methodology of lake ecosystem health assessment prepared in English and translated to Latvian
Lake ecological status
Conceptual model of surface – groundwater interaction
Risk assessment of surface and groundwater interaction
Report on Ilzu(Garais)/Ilge Lake ecosystem health
Report of the ecological status of transboundary lakes prepared in English and translated to Latvian
Report of the Source apportionment of nutrient loads
Report about Lake residual time
Manual of SimStream Web platform
Bathymetric maps of transboundary lakes (pdf, shp and kml files)
https://bior.lv/lv/latvijas-lietuvas-parrobezu-ezeru-kartografija
Harmonized LV-LT Lake Monitoring Program
Harmonized LV-LT Program of Measures
List of the most effective measure for heavily regulated river water bodies
More detailed information about the project’s outputs and project’s events is provided on project partners’ websites:
– Latvian Environment, Geology and Meteorology Centre, LEGMC: https://videscentrs.lvgmc.lv/iebuvets/projekts-latvijas-lietuvas-parrobezu-upju-un-ezeru-udens-baseinu-vienota-parvaldiba
– Lithuanian Energy Institute, LEI (lei.lt), project website: http://www.lei.lt/wp-sub/ecoflow/lt/
– University of Latvia, LU: https://lubi.lu.lv/par-mums/zinas/zina/t/73443/
Institute of Food Safety, Animal Health and Environment, BIOR: https://bior.lv/lv/instituta-bior-zivju-resursu-petniecibas-departamenta-petnieki-veic-zivju-uzskaiti-projekta-udenstilpes
Lithuanian Nature Research Centre, NRC: http://www.gamtostyrimai.lt/lt/projects/tarptautiniai-mokslo-projektai/interreg
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Website: https://2014-2020.latlit.eu/
Expected Results (EN): Number of organisations jointly contributing to environmental resource management
Expected Outputs (EN): Main results of the project will be: 1) elaborated new Methodology on lake ecosystem health assessment, 2) elaborated transboundary lake MP & PoM, and 3) elaborated Recommendations for the amendment to national water legislation regarding HPPs cascades management. The new Methodology allows to assess and to prevent degradation of lake ecosystems not only in LV-LT territory but in the whole region as well. Harmonized LV-LT Lake MP & PoM lead avoiding of separate overlapping management activities. The new legislation would ensure effective implementation of E-Flow principles, improvement of the strategic planning for water uses and the permitting process.
Results will be presented to Regional Environmental authorities, Ministry of Environmental Protection and Regional Development of the Republic of Latvia, Ministry of Environment of the Republic of Lithuania, Environmental Protection Agency of the Republic of Lithuania, and other stakeholders, like Latvian Nature Conservation Agency, Latvian and Lithuanian environmental NGOs (for example Latvian Fund for Nature, Lithuanian Nature Heritage Fund, Center of Environmental Policy of Lithuania, Latvian Associations of small HPPs, Lithuanian hydropower association and other stakeholders). Special attention will be paid for dissemination of the project results for local administrations and municipalities within Kurzeme Planning region, Zemgale Planning Region and Latgale Planning Region as well as inhabitants of transboundary Venta, Lielupe and Daugava RBDs. Project result is also the increased number of organisations jointly contributing to environmental resource management based on created new Methodologies and Recommendations.
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Thematic information
Specific Objective:
Increased integration and efficiency of environmental resource management
Thematic Objective:
(06) preserving and protecting the environment and promoting resource efficiency by:
Investment Priority:
(06d) Protecting and restoring biodiversity and soil and promoting ecosystem services, including through Natura 2000, and green infrastructure
