氮磷添加对树木生长和森林生产力影响的研究进展
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A review on the effects of nitrogen and phosphorus addition on tree growth and productivity in forest ecosystems
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图3. 氮和磷添加对树木生长及森林生产力影响研究的总结图。 |
Fig. 3. Summary diagram for studying the effects of nitrogen and/or phosphorus addition on tree growth and productivity in forest ecosystems. |
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