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$I{ELLENIC REPTJBLIC MIMSTRY FOR TIIE ET\TVIRONMENT ...$

MACROZOOBENTHOS OF THE VIT RIVER BASIN – AN ECOLOGICALASSESSMENTM. Pavlova, L. PehlivanovCentral Laboratory of General Ecology, Bulgarian Academy of Sciences,2 Gagarin Stret, 1113 Sofia, Bulgaria; nikolovamilena@abv.bgSeven sites within the Vit River basin were examined in 2009 during the summerlow water period. The species composition of macrozoobenthic communities wasrevealed. One hundred and three taxa belonging to 20 benthic groups were found.Eight new macrozoobenthic species for the Vit River and for the Bulgarian Danubetributaries are reported. One of them, the clam Corbiculla fluminea is consideredan invasive species according to the Global Invasive Species Database. Saprobicand biotic indices as well as some structure parameters of the benthic communitieswere used for complete ecological assessment together with the relevant physicochemicalparameters. Significant changes in the ecological state of the Vit Riverwere found in comparison with data of previous investigations from the earlynineties of the 20 th century. Olygosaprobity and β-mesosaprobity were found to becharacteristic for all the watershed, corresponding to “very good” and “good”ecological status, respectively. Anthropogenic impact associated with an increasedorganic content in the water was detected downstream the towns through theexamined parameters of the macrozoobenthos. Considerable self-purificationability of the Vit River was found. Further examination of the fine mechanisms ofthe river ecosystem functioning using the trophic structure of the hydrozoocenosescould be very important for revealing the natural succession and also for predictionof the anthropogenic influence over the watershed.14:45-15:00ТРАНСФОРМАЦИЯ НА ВКИСЛЯВАЩИ АТМОСФЕРНИЗАМЪРСИТЕЛИ ОТ РАСТИТЕЛНОСТТА В ГРАД СОФИЯ И ПЛАНАПЛАНИНАР. Фикова 1 , П. Първанова 1 , Н. Игнатова 2 , Р. Христова 1 , С. Дамянова 2 ,С. Братанова-Дончева 11 Централна лаборатория по обща екология, БАН, 1113 София,Е-поща: fikova@ecolab.bas.bg; 2 Лесотехнически университет, СофияХимичният състав (pH, SO 4 2- , NO 3 - , NH 4 + ) на атмосферните валежи на откритаплощ, както и на тези преминали през короните на бук (Fagus silvatica L.),бял бор (Pinus silvestris L.) и бреза (Betula alba L.) в Плана планина, и на дъб(Quercus robur L. s.l.) в град София, бяха обект на мониторинг през периода2006-2008. Резултати за киселинната реакция на валежите на откритопоказват, че в градски условия постъпват валежи с по-високи стойности нарН, в сравнение с тези от в Плана планина, въпреки приблизително еднаквитеконцентрации на SO 4 2- and NO 3 в дъждовните води от изследваните пунктове.30
Това може да се дължи на неутрализационния капацитет на по-високитеотлагания от алкални катиони в градски условия.Валежите под короните нашироколистната дървесна растителност (бук и бреза) са с по-благоприятнакиселинност и по-ниско съдържание на сулфати и нитрати в сравнение с тезипод иглолистна растителност (бял бор) в Плана планина. Определени са икритичните натоварвания за киселинност, сяра и азот за трите типарастителност в Плана чрез балансовия метод на веществата в устойчивосъстояние. Не са установени превишения на изчислените критичнинатоварвания от реалните атмосферни отлагания за изследванитешироколистни и иглолистни рецептори.TRANSFORMATION OF ACIDIFYING AIR POLLUTANTS BY TREEVEGETATION IN CITY AND MOUNTAIN: CASE STUDY FOR THECITY OF SOFIA AND PLANA MOUNTAINR. Fikova 1 , P. Parvanova 1 , N. Ignatova 2 , R. Hristova 1 , S. Damyanova 2 ,S. Bratanova-Doncheva 11 Central Laboratory of General Ecology, Bulgarian Academy of Sciences,1113 Sofia, E-mail: fikova@ecolab.bas.bg; 2 University of Forestry, SofiaBulk precipitation and throughfall chemistry (pH, SO 4 2- , NO 3 - , NH 4 + ) weremonitored during 2006-2008 in three adjacent stands of beech (Fagus silvatica L.),pine (Pinus silvestris L.) and birch trees (Betula alba L.) in Plana Mountain andone oak stand (Quercus robur L. s.l.) in the City of Sofia. The time course of bulkprecipitation pH showed that in urban area, rainfall are more acidic than in themountain area, despite their similar concentrations of SO 4 2- and NO 3 - ions. Thismay be caused by the neutralizing ability of the higher base cation deposition in theurban condition. Throughfall in deciduous stands in Plana Mountain had morefavorable acidity and lower sulfur and nitrogen content in comparison with theconiferous one. Critical loads for acidity, sulfur and nitrogen were determined forthe three types of vegetation in Plana by the Steady State Mass Balance model.Exeedances of the estimated critical loads from the real atmospheric deposition forinvestigated deciduous and coniferous receptors were not established.31
Page 1 and 2: НАУЧНА КОНФЕРЕНЦИЯ
Page 3 and 4: ПРОГРАМАPROGRAMME24 юни
Page 5 and 6: FUNCTIONAL DIVERSITY - LOOKING FORP
Page 7 and 8: 16:45-18:30 Сесия “Инве
Page 9 and 10: 18:15-18:30 ЦЕСТОДНА ФАУ
Page 11 and 12: 09:45-10:00 OБИКНОВЕНИЯТ
Page 13 and 14: 11:30-11:45 ОПАСНА КАЛИН
Page 15 and 16: 14:30-14:45 ПРОУЧВАНЕ И
Page 17 and 18: THE SYSTEM OF PROTECTED TERRITORIES
Page 19 and 20: РЕЗЮМЕТА НА ДОКЛАД
Page 21 and 22: изоставане - в недо
Page 23 and 24: Major tools to build up the Europea
Page 25 and 26: ТНЕ NEW EDITION OF THE RED-DATA
Page 27 and 28: MICROBIOLOGICAL INDICATORS IN CONTA
Page 29: In addition to the taxonomic compos
Page 33 and 34: 1. Conceptualization of criteria fo
Page 35 and 36: 15:30-15:45БИОРАЗНООБРА
Page 37 and 38: отнесени към нито е
Page 39 and 40: откриване и сезоне
Page 41 and 42: The infections were found in the gu
Page 43 and 44: There are also experimental data on
Page 45 and 46: 25 юни 2010 г., петъкJune
Page 47 and 48: Общо 202 вида насеко
Page 49 and 50: 09:45-10:00OБИКНОВЕНИЯТ
Page 51 and 52: The average number of pups was 6.9
Page 53 and 54: Това ограничава ра
Page 55 and 56: Разработването на
Page 57 and 58: REVIEW OF THE ALIEN TO BULGARIA TRU
Page 59 and 60: stock), Rhopalosiphum padi on Padus
Page 61 and 62: parthenogenetica в свръхсо
Page 63 and 64: 14:00-15:30Сесия “Опазв
Page 65 and 66: Високата степен на
Page 67 and 68: SURVEY AND CONSERVATION OF THE FRES
Page 69 and 70: Twenty-three zoogeographical types
Page 71 and 72: Анализирана е инте
Page 73 and 74: 16:00-16:15СИСТЕМА ОТ ЗА
Page 75 and 76: При въвеждане на сп
Page 77 and 78: 17:00-18:15Кръгла маса:
Page 79 and 80: ПРОЕКТ “WETLANET - ПОВИ
Page 81:
spectrophotometer, growing chamber,
Page 84 and 85:
ПОСТЕРИPOSTERSБИОРАЗН
Page 86 and 87:
на процеса обуслав
Page 88 and 89:
TAXONOMIC STRUCTURE CHANGES AND DOM
Page 90 and 91:
Minicheva were applied. The two met
Page 92 and 93:
To date several genera are revised,
Page 94 and 95:
07ИЗСЛЕДВАНЕ НА ТРИ
Page 96 and 97:
The voucher specimens with physical
Page 98 and 99:
X. diversicaudatum, X. index, X. in
Page 100 and 101:
The obtained data of the measures o
Page 102 and 103:
В резултат на прове
Page 104 and 105:
COMPLEX STUDY OF PROTECTED, ENDEMIC
Page 106 and 107:
16ОБОГАТЯВАНЕ НА ГЕ
Page 108 and 109:
INFLUENCE OF N-6-BENZYLADENINE ON T
Page 110 and 111:
19IN VITRO РАЗМНОЖАВАНЕ
Page 112 and 113:
The analytical results show that mo
Page 114 and 115:
23ЕКСТРАКТИ ОТ ЕНДЕ
Page 116 and 117:
24ВЛИЯЕ ЛИ ЕКСПЕРИМ
Page 118 and 119:
КЛИМАТИЧНИ ПРОМЕНИ
Page 120 and 121:
SUMMARY DATA ON THE FLORISTIC DIVER
Page 122 and 123:
ANALYSIS AND ASSESSMENT OF THE IMPA
Page 124 and 125:
29КАЧЕСТВО НА ОКОЛН
Page 126 and 127:
BIODIVERSITY AND ECOLOGICAL APPRAIS
Page 128 and 129:
32ГЕНОТИПНА УСТОЙЧИ
Page 130 and 131:
В последните годин
Page 132 and 133:
THE FIRST NOTE OF IDIOPTERUS NEPHRE
Page 134 and 135:
37ВЪРХУ РЕПРОДУКТИВ
Page 136 and 137:
RELATIVE ABUNDANCE OF NINE BIRD SPE
Page 138 and 139:
Растителността, не
Page 140 and 141:
42ОПАЗВАНЕ НА БИОРА
Page 142 and 143:
От района са извест
Page 144 and 145:
В лабораторни усло
Page 146 and 147:
47КЪЛНЯЕМОСТ НА СЕМ
Page 148 and 149:
MONITORING OF VASCULAR PLANTS IN BU
Page 150 and 151:
50ПРОУЧВАНЕ НА МИГР
Page 152 and 153:
ЕХ SITU PROTECTION AND EXHIBITION
Page 154 and 155:
NEW HOSTS OF METAGONIMUS YOKOGAWAI
Page 156 and 157:
В колекциите от про
Page 158 and 159:
BUSINESS AND BIODIVERSITY IN BULGAR
Page 160:
Yearly round guided excursions are
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