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Current global energy needs and the effort to substitute fossil fuels have led to extensive production of biomass in agricultural systems for purposes of renewable energy generation. At the same time, energy cropping poses new threats to the sustainability of land use systems. Large-scale industrialized farming in general and intensive energy crop production in particular are increasingly drawing criticism from various stakeholders for their negative external effects.

Organic farming. --- Sustainable agriculture.

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harmonie --- melodieën --- muziektheorie --- 540 --- Theorie: harmonie --- 542 --- Harmonie - koralen

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Klarinet --- 20e eeuw --- Kamermuziek

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Koorliederen --- Verenigde Staten van Amerika --- 20e eeuw

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Sextetten --- Koperblazers --- Percussie --- Verenigde Staten van Amerika --- 20e eeuw