[ 发表于: Pollution ]
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结果 191-200 的 222
Soil ciliates as indicators of fundamental changes in forest ecosystems
1991
Lehle, E. (Ulm Univ. (Germany). Abt. Oekologie und Morphologie der Tiere) | Funke, W.
ZB MED Nutrition. Environment. Agriculture - Germany
Immission measurements at Schoellkopf near Freudenstadt
1991
Baumbach, G. (Stuttgart Univ. (Germany). Inst. fuer Verfahrenstechnik und Dampfkesselwesen. Abt. Reinhaltung der Luft) | Baumann, K.
ZB MED Nutrition. Environment. Agriculture - Germany
Open-top chamber experiment "Edelmannshof": Determination of biochemical parameters in needles of Norway spruce fumigated with unfiltered or charcoalfiltered air in comparison to untreated trees
1991
Egger, B. (Tuebingen Univ. (Germany). Physiologische Oekologie der Pflanzen) | Braun, C. | Einig, W. | Hampp, R.
ZB MED Nutrition. Environment. Agriculture - Germany
L' evaluation de la pollution atmospherique transfrontiere a longue distance.
1991
Wolters Kluwer - United States of America
L' etat de la pollution atmospherique transfrontiere: mise a jour 1989.
1991
Wolters Kluwer - United States of America
Water Pollution Prevention and Control Act of 1991
1991
National Agricultural Library - United States of America
Silvicultural practices
1991
Lord, Roger G. | Dreesen, Alan D.
National Agricultural Library - United States of America
Field crop production as a source of groundwater pollution
1991
Weaver, Robert D.
National Agricultural Library - United States of America
Management of nutrition in forests under stress
1991
Zöttl, H. W. | Hüttl, R. F.
National Agricultural Library - United States of America
Water quality characterization of Hizawa River [Japan]
1991
Kohno, Y. (Nagano-ken. Research Inst. for Health and Pollution (Japan)) | Harada, T. | Muramatsu, K. | Higuchi, S. | Kondoh, K. | Kuwabara, H.
The Agriculture, Forestry and Fisheries Research Information Technology Center - Japan
