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AGRIS - 国际农业科技情报系统

[ 发表于: Pollution ]
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出版日期
1989

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结果 71-80 的 266

[Substance input in forest ecosystems. - Deposition of precipitation in the open land and in forest stands]

1989

Brechtel, H.M.

german federal republic acid rain air pollution picea abies pluie acide bundeslaender vergleiche 424.5 depositionen immissionen lluvia acida 181.45 ...
ZB MED Nutrition. Environment. Agriculture - Germany
[Acid balance of a Norway spruce stand of the Hessian forest district of Witzenhausen]

1989

Balazs, A.

eau d'infiltration hesse infiltration water acid rain air pollution picea abies saure depositionen 114.25 agua de infiltracion naehrstoffkreislauf depositionsraten ph-werte ...
ZB MED Nutrition. Environment. Agriculture - Germany
[Manganese-, aluminium- and nitrate concentrations in the infiltration water under old Norway spruce stands of the measurement stations of the WDI (Waldbelastung durch Immissionen) study programme of the state of Hesse]

1989

Balazs, A. | Brechtel, H.M.

aluminium hesse nitrate nitrates aluminio acid rain no3sickerwasser depositionen mengenbilanz immissionen lluvia acida 181.45 116.11 ...
ZB MED Nutrition. Environment. Agriculture - Germany
[Water quality of four small brooks situated in the forest hydrological research area of Krofdorf (Hesse). - An experimental comparison of the catchment basin]

1989

Fuehrer, H.W.

fagus sylvatica hesse acid rain water quality ca mg basenaktivitaet qualite de l'eau ergebnisse immissionen ph-wert lluvia acida ...
ZB MED Nutrition. Environment. Agriculture - Germany
[Evaluation of the buffer capacity of forest catchment basins in North Hesse based on brook water quality]

1989

Balazs, A. | Brechtel, H.M. | Elrod, J.

forests hesse water quality calidad del agua bosques 114.25 qualite de l'eau immissionen ph-wert 116.9 foret ...
ZB MED Nutrition. Environment. Agriculture - Germany
[Spatial and chronological variation of precipitation solved substances in the open land and in Norway spruce stands of Hesse]

1989

Balazs, A.

hesse sulfatos sulfate acid rain air pollution sulphates depositionen immissionen messergebnisse lluvia acida 181.45 (430.1-43.45) ...
ZB MED Nutrition. Environment. Agriculture - Germany
The impact of fertilization and site preparation on natural regeneration of declined forest stands in the Black Forest

1989

Littek, T. (Freiburg Univ. (Germany, F.R.). Waldbau-Inst.)

fertilizers forests bodenvorbereitung facteur nuisible agentes nocivos acid rain 232.329.1 nadeln verluste verfaerbungen naturverjuengung engrais mineral gewaechshaus-parallelversuch (430.1-43.5) ...
ZB MED Nutrition. Environment. Agriculture - Germany
[The Fichtelgebirge - natural position - forest damage -forest regeneration programme]

1989

Koch, H.

sulphur dioxide dioxyde de soufre wiederaufforstung acid rain air pollution picea abies (430.1-43.6) fichtelgebirge saure depositionen standortfaktoren dioxido de azufre reforestacion ...
ZB MED Nutrition. Environment. Agriculture - Germany
First results with calcined magnesite, magnesium hydroxide and Geosan in declining, chlorotic Norway spruce stands (NE-Bavaria)

1989

Schaaf, W. (Bayreuth Univ. (Germany, F.R.). Lehrstuhl fuer Bodenkunde und Bodengeographie) | Zech, W.

fertilizers soil chemistry chimie du sol magnesium magnesio picea abies (430.1-43.6) engrais mineral 114.521.5 perkolationsversuche nadelanalysen duengewirkung ...
ZB MED Nutrition. Environment. Agriculture - Germany
[Effects of nitrate and sulphate fertilizers on soil-pH and nutrient element supply of Norway spruce and European beech stands]

1989

Liu, J.C. (Freiburg Univ. (Germany, F.R.). Inst. fuer Bodenkunde und Waldernaehrungslehre) | Ende, H.P.

fagus sylvatica fertilizers nitrate nitrates bade-wurtemberg baden-wuerttemberg 181.341 (430.1-43.6) nadeln vergilbungen mischduengung engrais mineral 114.25 ...
ZB MED Nutrition. Environment. Agriculture - Germany