How Ecosystems Respond to Stress
How Ecosystems Respond to Stress
复制标题
生态系统如何应对压力
DOI：
--
复制
发表时间：
2006
期刊：
影响因子：
--
通讯作者：
W. Whitford
中科院分区：
文献类型：
--
作者：
D. Rapport;W. Whitford
早期，所有生态系统都会受到自然事件的周期性干扰，例如洪水、火灾、干旱和虫害（Vogl 1980）。当这种扰动达到极端时，极其复杂的生态系统就会迅速转变为极其简单的系统，其特点是生命形式稀缺，共生相互作用很少或没有。然而，这种转变为恢复奠定了基础，使生态系统能够适应不断变化的环境（Holling 1986）。在健康的系统中。因此，这些扰动很少只是暂时的挫折，并且恢复通常很快（Odum 1969）。与自然干扰相比，人为压力不是一种恢复活力的因素，而是一种使人衰弱的因素。受到压力的生态系统不会恢复，反而可能会进一步恶化。事实上，奥杜姆等人。 (1979) 将压力定义为一种使人衰弱的因素，而扰动（补贴）则定义为潜在的有益因素。人为压力是
early all ecosystems are subject to periodic disturbances by natural events, such as flood, fire, drought, and insect infestation (Vogl 1980) . When such perturbations are extreme, ecosystems of immense complexity undergo rapid transformation to systems of remarkable simplicity that are characterized by a scarcity of life forms and few or no symbiotic interactions . However, this transformation sets the stage for recovery, which allows the ecosystem to adapt to changing environments (Holling 1986). In healthy systems . therefore, these perturbations are seldom more than a temporary setback, and recovery is _generally rapid (Odum 1969) . By contrast to natural disturbances, anthropogenic stress is not a revitalizing agent, but a debilitating one . Stressed ecosystems do_ not recover rather fur=ther d gradation may follow. Indeed, Odum et al . (1979) defined stress as a debilitating agent and perturbation (subsidy) as potentially beneficial . Anthropogenic stresses are of
影响因子：
10.1
作者：
ODUM, EP
通讯作者：
ODUM, EP