The Causes of regular Pattern in Desert Perennials
The Causes of regular Pattern in Desert Perennials
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DOI：
10.2307/2258648
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发表时间：
1973-11
影响因子：
5.5
通讯作者：
T. J. King;S. Woodell
中科院分区：
文献类型：
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作者：
T. J. King;S. Woodell
Woodell, Mooney & Hill（1969）证明了Larrea divariicata Cav的“个体”密度之间存在正相关关系。和降雨，在加州索诺兰和莫哈韦沙漠的12个地点。他们还发现“聚集性与高降雨量和规律性与低降雨量有着惊人的强烈联系”，并在这些和其他数据的基础上提出，在许多低降雨量地区，L. divaricata的规则间距可能是根系竞争有效水分的结果。Anderson（1971）否定了这一假说。Barbour（1973）重申了Anderson的观点。本文指出了Anderson（1971）提出的论点中的一些谬误，考虑了一些新的证据，并讨论了规则模式的一些可能原因。
Woodell, Mooney & Hill (1969) demonstrated a positive correlation between the density of 'individuals' of Larrea divaricata Cav. and rainfall, over twelve sites in the Sonoran and Mojave deserts, California. They also found 'a surprisingly strong association of aggregation with high and regularity with low rainfall', and suggested on the basis of these and other data that the regular spacing of L. divaricata in many sites of low rainfall is likely to be the result of root competition for available water. Anderson (1971) rejected this hypothesis. Barbour (1973) re-iterates Anderson's view. Some fallacies are pointed out here in the arguments put forward by Anderson (1971), some new evidence is considered, and some of the possible causes of regular patterns are discussed.