THE ECOLOGY OF ATHROTAXIS D DON (TAXODIACEAE) .1. STAND STRUCTURE AND REGENERATION OF ATHROTAXIS-CUPRESSOIDES
THE ECOLOGY OF ATHROTAXIS D DON (TAXODIACEAE) .1. STAND STRUCTURE AND REGENERATION OF ATHROTAXIS-CUPRESSOIDES
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DOI：
10.1071/bt9880547
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发表时间：
1988-01-01
影响因子：
1.1
通讯作者：
KIRKPATRICK, JB
中科院分区：
文献类型：
--
作者：
CULLEN, PJ;KIRKPATRICK, JB
在塔斯马尼亚[澳大利亚]的高亚高山和高山环境中，南美天牛形成了不同大小、等级和年龄结构的林分。与其他一些寿命很长的南半球裸子植物一样，雪松在茂密的森林中不会不受干扰地成功再生，但在许多开阔的林分中会成功再生。在许多这样的林分中，通过根吸器进行的营养再生发生了。吸盘在沼泽中最常见，在区块流中最不明显。自欧洲占领中部高原以来，在该物种范围以东的露地林中，很少有成功的苗木或吸枝更新。围隔实验和野外观察表明，引进的胎盘和本地有袋类哺乳动物大量捕食幼苗、吸盘和成虫的叶子。
Athrotaxis cupressoides forms stands of varying size class and age class structure in the high subalpine and alpine environments of Tasmania [Australia]. As with some other southern hemisphere gymnosperms with great longevity, A. cupressoides does not successfully regenerate in dense forest stands without disturbance but does so in many open stands. Vegetative regeneration through root suckers occurs in many such stands. Suckers are most frequent in bogs and least evident in blockstreams. There has been little successful seedling or sucker regeneration in open stands in the east of the range of the species since European occupation of the Central Plateau. Exclosure experiments and field observations show that seedlings, suckers and adult foliage are heavily grazed by introduced placental and native marsupial mammals.