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Samenvatting - Ecologie en Milieuzorg CB 3
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samenvatting van Ecologie en milieuzorg antwoorden op de leervragen
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Ecologie en milieuzorgInhoud
Ecologie en milieuzorg............................................................................................................................1
1 C-cyclus en klimaat verandering..........................................................................................................2
1.1 leervragen.....................................................................................................................................2
2 Ontbossing...........................................................................................................................................3
2.1 leervragen.....................................................................................................................................3
3 Waterproblematiek..............................................................................................................................5
3.1 Leervragen....................................................................................................................................5
4 Bodem en landgebruik.........................................................................................................................6
4.1 Samenstelling................................................................................................................................6
4.2 Bodemtextuur...............................................................................................................................6
4.3 Bodemstructuur............................................................................................................................6
4.4 Kationen uitwisselingscapaciteit...................................................................................................7
4.5 Organisch materiaal......................................................................................................................7
4.6 Micro-organismen.........................................................................................................................7
4.7 Leervragen....................................................................................................................................8
4.8 Eutrofiëring...................................................................................................................................9
5 Biosfeer lucht.....................................................................................................................................10
5.1 Leervragen..................................................................................................................................10
6 Biodiversiteit......................................................................................................................................12
6.1 leervragen...................................................................................................................................12
7 Overbevolking....................................................................................................................................13
7.1 leervragen...................................................................................................................................13
8 Duurzame Ontwikkeling.....................................................................................................................14
8.1 leervragen...................................................................................................................................14
, 1 C-cyclus en klimaat verandering
1.1 leervragen
1. Wat wordt er gemeten in Mauna Loa?
De CO2-concentratie in de atmosfeer
2. Waarom Mauna Loa?
Eiland ver van de beschaving, geen locatie gebonden invloed.
3. Waar komen de jaarlijkse schommelingen in CO 2 vandaan?
Seizoenen, er is meer vegetatie op het noordelijk halfrond wanneer het daar dus lente is
zullen de CO2-concentraties lager liggen dan dat het winter en herfst is
4. Waarom is de huidige concentratie CO2 duidelijk het gevolg van menselijke activiteit en is het
geen natuurlijke schommeling?
Lange geschiedenis van CO2- concentratie zichtbaar in het poolijs van Antarctica. Geen
natuurlijke cyclus.
Ontbossing en verbranding van fossiele brandstoffen verhogen de CO 2-concentratie waardoor een
versterkt broeikaseffect optreedt.
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