WATER RESOURCES OF LATVIA AND A METHOD FOR DETERMINATION OF THE SOIL WATER REGIME IN LAND EVALUATION

Ansis Ziverts and Inese Jauja
Latvian University of Agriculture, Akademijas iela 19, Jelgava, LV-3001 LATVIA
Proc. Latvian Acad. Sci., Section B (LATVIA, ISSN: 1407-009X), Vol. 51 (1997), No. 3/4, pp. 97-105. Language: English

THE RELATIONSHIP BETWEEN THE DISCHARGES OF RIVERS AND TILE DRAINAGE

Censonis Skinkis and Ilmars Andersons
Research Institute for Agricultural Polymers and Water Management, Dobeles iela 43, Jelgava, LV-3001 LATVIA
Proc. Latvian Acad. Sci., Section B (LATVIA, ISSN: 1407-009X), Vol. 51 (1997), No. 3/4, pp. 106-110. Language: English

DETERMINATION OF TILE DRAIN SPACING

Censonis Skinkis
Research Institute for Agricultural Polymers and Water Management, Dobeles iela 43, Jelgava, LV-3001 LATVIA
Proc. Latvian Acad. Sci., Section B (LATVIA, ISSN: 1407-009X), Vol. 51 (1997), No. 3/4, pp. 111-116. Language: English

SURFACE DEPRESSION OF GROUNDWATER LEVELS IN COHESIVE CLAY SOILS

Haralds Smilga
Research Institute for Agricultural Polymers and Water Management, Dobeles iela 43, Jelgava, LV-3001 LATVIA
Proc. Latvian Acad. Sci., Section B (LATVIA, ISSN: 1407-009X), Vol. 51 (1997), No. 3/4, pp. 117-122. Language: English

PROVISION OF THE REQUIRED FLOW IN THE LATERALS OF MICRO-SPRINKLER SYSTEMS, INDEPENDENT OF THE LARGER PRESSURE IN THE MANIFOLD

Vilnis Berlands
Research Institute for Agricultural Polymers and Water Management, Dobeles iela 43, Jelgava, LV-3001 LATVIA
Proc. Latvian Acad. Sci., Section B (LATVIA, ISSN: 1407-009X), Vol. 51 (1997), No. 3/4, pp. 123-128. Language: English

WATER PERMEABILITY OF SYNTHETIC AND COMBINED PROTECTIVE MATERIALS USED TO PROTECT DRAIN PIPES

Janis Valters
Research Institute for Agricultural Polymers and Water Management, Dobeles iela 43, Jelgava, LV-3001 LATVIA
Proc. Latvian Acad. Sci., Section B (LATVIA, ISSN: 1407-009X), Vol. 51 (1997), No. 3/4, pp. 129-132. Language: English

SOURCES, FLOWS AND SINKS OF ORGANIC MATTER IN AQUATIC ENVIRONMENTS

Elga Apsite and Maris Klavins
Department of Environmental Science, University of Latvia, Raina bulv. 19, Riga, LV-1586 LATVIA
Proc. Latvian Acad. Sci., Section B (LATVIA, ISSN: 1407-009X), Vol. 51 (1997), No. 3/4, pp. 133-142. Language: English

HUMIC SUBSTANCES IN SURFACE WATERS OF LATVIA

Maris Klavins, Elga Apsite, and Elga Parele*
Department of Environmental Science, University of Latvia, Raina bulv. 19, Riga, LV-1586 LATVIA
* Institute of Biology, University of Latvia, Miera iela 3, Salaspils, LV-2169 LATVIA
Proc. Latvian Acad. Sci., Section B (LATVIA, ISSN: 1407-009X), Vol. 51 (1997), No. 3/4, pp. 143-152. Language: English

WELL WATER QUALITY IN LATVIA

Maris Klavins, Valery Rodionov*, Peteris Cimdins*, Inta Klavina, Uldis Cinis*, Milda Purite, and Ivars Druvietis*
Department of Environmental Science, University of Latvia, Raina bulv. 19, Riga, LV-1586 LATVIA
* Institute of Biology, University of Latvia, Miera iela 3, Salaspils, LV-2169 LATVIA
Proc. Latvian Acad. Sci., Section B (LATVIA, ISSN: 1407-009X), Vol. 51 (1997), No. 3/4, pp. 153-158. Language: English

ESTIMATION OF ATMOSPHERIC HEAVY METAL DEPOSITION IN LATVIA USING FEATHER MOSS

Guntis Brumelis, Lucija Lapina, Olgerts Nikodemus*, and Didzis Tjarve
Faculty of Biology, University of Latvia, Kronvalda bulv. 4, Riga, LV-1842 LATVIA
* Faculty of Geography and Earth Sciences, University of Latvia, Alberta iela 10, Riga, LV-1010 LATVIA
Proc. Latvian Acad. Sci., Section B (LATVIA, ISSN: 1407-009X), Vol. 51 (1997), No. 3/4, pp. 159-164. Language: English

RELATIONS BETWEEN CLAY CONTENT (dia < O.O1 mm) AND ELEMENT CONCENTRATIONS IN SOILS OF LATVIA

Olgerts Nikodemus, Guntis Brumelis*, and Ingus Liepins
Faculty of Geography and Earth Sciences, University of Latvia, Alberta iela 10, Riga, LV-1010 LATVIA
* Faculty of Biology, University of Latvia, Kronvalda bulv. 4, Riga, LV-1842 LATVIA
Proc. Latvian Acad. Sci., Section B (LATVIA, ISSN: 1407-009X), Vol. 51 (1997), No. 3/4, pp. 165-169. Language: English

THE ROLE OF ACTIVE PLANT EXTRACTS AND GRANULOSIS VIRUSES IN REGULATION OF PEST POPULATIONS

Zigrida Cudare and Liga Jankevica
Institute of Biology, University of Latvia, Miera iela 3, Salaspils, LV-2169 LATVIA
Proc. Latvian Acad. Sci., Section B (LATVIA, ISSN: 1407-009X), Vol. 51 (1997), No. 3/4, pp. 170-175. Language: English

THRIPS AND THEIR NATURAL ENEMIES IN GREENHOUSES

Valentina Patrova, Antonina Hramejeva, and Ineta Steinite
Institute of Biology, University of Latvia, Miera iela 3, Salaspils, LV-2169 LATVIA
Proc. Latvian Acad. Sci., Section B (LATVIA, ISSN: 1407-009X), Vol. 51 (1997), No. 3/4, pp. 176-178. Language: English

NEW BIODEGRADABLE POLYMER MATERIALS FROM UNMODIFIED AND MODIFIED STARCH

Uldis Stirna
Latvian State Institute of Wood Chemistry, Dzerbenes iela 27, Riga, LV-1006 LATVIA
Proc. Latvian Acad. Sci., Section B (LATVIA, ISSN: 1407-009X), Vol. 51 (1997), No. 3/4, pp. 179-182. Language: English

THE SIXTH CONGRESS OF THE LATVIAN SOCIETY OF GENETISTS AND BREEDERS

Isaak Rashal
Latvian Society of Geneticists and Breeders
Proc. Latvian Acad. Sci., Section B (LATVIA, ISSN: 1407-009X), Vol. 51 (1997), No. 3/4, p. 183. Language: English

ACTIVITIES OF THE DIVISION OF PHYSICAL AND TECHNICAL SCIENCES OF THE LATVIAN ACADEMY OF SCIENCES IN 1996

Juris Ekmanis
Latvian Academy of Sciences
Proc. Latvian Acad. Sci., Section B (LATVIA, ISSN: 1407-009X), Vol. 51 (1997), No. 3/4, pp. 184-185. Language: English

MEMBERS OF THE LATVIAN ACADEMY OF SCIENCES ELECTED ON NOVEMBER 22, 1996

Proc. Latvian Acad. Sci., Section B (LATVIA, ISSN: 1407-009X), Vol. 51 (1997), No. 3/4, pp. 186-188. Language: English

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