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原文連結
論文資訊
- 類型：已發表論文
- 日期：2022-02-14
摘要
Recent findings point to plant root traits as potentially important for shaping the boundaries of biomes and for maintaining the plant communities within. We examined two hypotheses: 1) Thin- rooted plant strategies might be favored in biomes with low soil resources; and 2) these strategies may act, along with fire, to maintain the sharp boundary between the Fynbos and Afro temperate 森林 biomes in South Africa. These biomes differ in 生物多樣性, plant traits, and physiognomy, yet exist as alternative stable states on the same geological substrate and in the same 氣候 conditions. We conducted a 4-y field experiment to examine the ability of 森林 物種 to invade the Fynbos as a function of growth-limiting nutrients and below ground plant–plant competition. Our results support both hypotheses: First, we f
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