QUANTIFICATION OF EFFECTS OF ACID RAIN TO FOREST STANDS; EFFECTS OF COMPENSATIVE LIMINGS

Ziel

THE AIM OF THE RESEARCH IS TO QUANTIFY THE EFFECTS OF ACID DEPOSITION ON THE FOREST STANDS, THE SOILS AND THE SEEPAGE WATER. AT THE SAME TIME, THE EFFECTS OF COMPENSATIVE LIMINGS ARE INVESTIGATED ALSO WITH REGARD TO FOREST STANDS, SOILS AND SEEPAGE.

THE RESEACH WORK IS BASED ON THE ASSUMPTION THAT ENHANCED PROTON INPUTS FROM THE ATMOSPHERE ARE CAUSING ESSENTIAL CHANGES IN FOREST ECOSYSTEMS, BEING RESPONSIBLE TO A HIGH DEGREE FOR THE EXTENSIVE FOREST DECLINE OF RECENT YEARS.

THE RESEARCH WORK IS SUBDIVIDED INTO TWO PROJECTS OF INVESTIGATIONS:

A. THE FIELD EXPERIMENTS "HOEGLWALD".

IN TWO PURE SPRUCE STANDS OF DIFFERENT AGES, EXPERIMENTS WITH ARTIFICIAL RAIN AND WITH COMPENSATIVE LIMINGS ARE INSTALLED. IN OLD SPRUCE STAND (76 YEARS OLD) A SOIL IRRIGATION OF 200 MM PER YEAR WITH PH 2.7 AND PH 5 IS PERFORMED; IN THE YOUNG STAND (12 YEARS OLD) AN ABOVE-CANOPY IRRIGATION WITH THE SAME FEATURES IS APPLIED. THE LIMING COMPRISES 4000 KG HA _1 CA-MG-CARBONATE.

B. SITE INVESTIGATIONS WITHOUT EXPERIMENTAL TREATMENTS. INVESTIGATIONS WITH THE SAME AIM AS MENTIONED ABOVE BUT WITHOUT THE EXTENSIVE EXPERIMENTAL TREATMENTS AS UNDER POINT A. SHOULD BE PERFORMED IN ABOUT 50 STANDS OF DIFFERENT SPECIES, SITES AND IMMISSION CHARGES.

Programm/Programme

PRE-ENVPROT 3C - Sectoral research and development programme (EEC) in the field of environment (environmental protection and climatology) - indirect and concerted actions - Environmental protection -, 1981-1985

Thema/Themen

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Aufforderung zur Vorschlagseinreichung

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Finanzierungsplan

CSC - Cost-sharing contracts

Koordinator

Ludwig-Maximilians-Universität München

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