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您的检索式：作者名="Mac A.Callaham"
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| 1 | Recovery of Collembola in Pinus tabulaeformis Plantations显示文摘Large areas of forest plantations have been developed in China.It is important to evaluate the soil fauna in plantations and the conditions needed for their recovery in view of the large areas of plantations in China.Three Pinus tabulaeformis forests,a 26-year-old plantation(P26) and a 45-year-old plantation(P45),exposed to clear-cutting before plantation,and an 80-260-year-old natural forest(N260),were chosen to study the effects of different forest ages/types on Collembola community in the litter and soil layers during2008 and 2009.Soil conditions in P26 and P45 were significantly deteriorated when compared to N260.A higher value of soil bulk density and lower values of soil organic matter,soil N,litter depth,soil pH,and soil water content were observed in P26 and P45.Totally,the same genera of Collembola tended to occur in the forests of all ages studied;however,the Collembola community structure was significantly impacted by the differences in forest age.Both in the litter and soil layers,the density and generic richness of the Collembola were the highest in N260 and the lowest in P26.Some collembolan groups were sensitive to soil conditions in particular forest ages.N260 was associated with relatively high abundance of Plutomurus collembolans and P45 with relatively high abundance of Pseudofolsomia collembolans.The canonical correspondence analysis showed that the community structure of Collembola was mainly affected by forest age in both litter and soil layer.The ordination analysis of non-metric multidimensional scaling also found that the Collembola community did not recover to the level of natural forests in 26-year regeneration after clear-cutting.Even in 45-year regeneration after clear-cutting,the Collembola community only showed a slight recovery to the level of natural forests.Our results clearly showed that both Collembola community and soil conditions did not recover in 26- and 45-year regeneration after clear-cutting in P.tabulaeformis plantations;however,they might have the potential to recover in the future because the same genera of Collembola were distributed in the plantations and natural forests. | CHANG Liang WANG Baifeng LIU Xianghui Mac A.CALLAHAM Jr. GE Feng | 2017 | Pedosphere2017，27，1： | 1 |
| 2 | 频繁着火的新热带松林上层林冠结构、实生苗成长特性与火之间的相互作用显示文摘加勒比海汇流区依赖于火的松林涵盖了广阔的区域,包括加勒比海和墨西哥湾的沿海平原,以及部分巴哈马群岛、古巴、伊斯帕尼奥拉岛(即海地岛)与洪都拉斯湾的一些岛屿。这些森林具有很高的保存价值,遗憾的是大部分仍未得到保护。此外,即使森林是依赖于火的,利用火进行森林管理也常常不被公众所理解,在一些国家还是法律所禁止的。在本文中,我们描述了这些生态系统中火灾与森林再生和森林持久性之间的根本联系。基于松树实生苗能否适应火灾而生存,我们确定了两个总体策略,并描述了这两个策略的管理意义。我们还提出了描述火、森林结构与再生间策略之间关系的概念模型。 | Joseph J.O'Brien J.Kevin Hiers Mac A.Callaham Robert J.Mitchell Steve B.Jack 高孟绪 | 2008 | AMBIO-人类环境杂志2008，37，7： | 0 |
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