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Constructing vital statistics: Thomas Rowe Edmonds and William Farr, 1835–1845 et al. 1989). As the issue of acidic deposition and forest decline unfolds, the importance of nutrient cycling analysis in understanding the cause-effect relationships in this phenomenon has also become very clear (Ulrich 1980; Johnson et al. 1985, 1991; Schulze 1989).ALERT 发表于 2025-4-1 01:43:10
“,” (British Medical Almanack 1838; Supplement 199–216)ack alder were planted in mixed stands. Five years later soil solution concentration and soil solid phase were studied. In LIM pH, effective CEC, and exchangeable Ca and Mg increased in the litter layer. In the surface mineral soil (0-5 cm) of LIM only exchangeable Mg was higher. In LPF a base satur