Interdependence of geomorphic and ecologic resilience properties in a geographic context
Interdependence of geomorphic and ecologic resilience properties in a geographic context
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DOI：
10.1016/j.geomorph.2017.09.012
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发表时间：
2017-09
期刊：
影响因子：
3.9
通讯作者：
J. A. Stallins;D. Corenblit
中科院分区：
文献类型：
--
作者：
J. A. Stallins;D. Corenblit
生态学和地貌学认识到抵抗和恢复力的动态方面。然而，生态学中正式的弹性理论倾向于弱化地貌栖息地模板。相反，地貌学中的景观敏感性和状态与过渡模型低估了生物适应机制在波动的、空间明确的环境中起作用。环境异质性和干扰的重叠梯度使对抵抗和恢复的地理模式的推断复杂化，这给理解复杂的生物地貌系统带来了跨学科的挑战。我们开发了一个概念模型来比较屏障沙丘之间的弹性特性。该模型说明了适应性循环和panarchies（生态学中公认的恢复力的正式构建模块）如何可以用一组分层嵌套的地貌和生态指标来表示。提出了这些数据的方差结构作为描述不同类型和水平的弹性的一种手段。具体来说，正是这些数据的维度以及地貌和生态变量如何在第一个和随后的轴上负荷，促进了对抵抗力和复原力的描绘。提出利用不同堰洲岛间的观测数据构建沙丘地形状态空间，作为衡量地貌与生态恢复力相互依存关系的一种方法。
Ecology and geomorphology recognize the dynamic aspects of resistance and resilience. However, formal resilience theory in ecology has tended to deemphasize the geomorphic habitat template. Conversely, landscape sensitivity and state-and-transition models in geomorphology downweight mechanisms of biotic adaptation operative in fluctuating, spatially explicit environments. Adding to the interdisciplinary challenge of understanding complex biogeomorphic systems is that environmental heterogeneity and overlapping gradients of disturbance complicate inference of the geographic patterns of resistance and resilience. We develop a conceptual model for comparing the resilience properties among barrier dunes. The model illustrates how adaptive cycles and panarchies, the formal building blocks of resilience recognized in ecology, can be expressed as a set of hierarchically nested geomorphic and ecological metrics. The variance structure of these data is proposed as a means to delineate different kinds and levels of resilience. Specifically, it is the dimensionality of these data and how geomorphic and ecological variables load on the first and succeeding axes that facilitates the delineation of resistance and resilience. The construction of dune topographic state space from observations among different barrier islands is proposed as a way to measure the interdependence of geomorphic and ecological resilience properties.