Land use and topography bend and break fractal rules of water body size-distributions: Water Body Size-Distributions Bend and Break
Land use and topography bend and break fractal rules of water body size-distributions: Water Body Size-Distributions Bend and Break
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土地利用和地形弯曲和破坏水体尺寸分布的分形规则: Water Body Size-Distributions Bend and Break
DOI：
10.1002/lol2.10038
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发表时间：
2017
影响因子：
7.8
通讯作者：
Heffernan, James B.
中科院分区：
文献类型：
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作者：
Steele, Meredith K.;Heffernan, James B.
内陆水体(WB)在不同区域内的大小分布往往与基于地球物理的理论模型(幂定律：Y = AXβ)不太相符；然而，这些偏差的原因尚不清楚。因此，我们比较了美国164个不同地形、气候和农业强度地区的WB丰度和大小分布参数(斜率[β]和模型拟合[R2])。我们发现所有这三个因素都会影响WB的大小分布以及它们对预期模型的拟合。WB尺寸分布在地形陡峭的地区具有更小的WB，更好地符合幂定律模型，而地形平坦、降水量较大的地区的WB分布的拟合较差。粗放的农业增加了小型世界银行的比例，导致一些地区的分布超出了理论预测的界限(βCDF<； −1)。WB大小分布的区域变化有助于发展和测试解释WB大小的地球物理和人为驱动因素的综合理论，这对于衡量水生系统中的生物地球化学过程是必不可少的。
The size‐distributions of inland water bodies (WB) within different regions often poorly conform to geophysically based theoretical models (power‐law: y = axβ); however, the causes of these deviations remain unknown. Therefore, we compared WB abundance and size‐distribution parameters (slope [β] and model fit [r2]) in 164 regions in the United States with varying topography, climate, and agricultural intensity. We found all three factors influenced WB size‐distributions and their fit to expected models. WB size‐distributions in steeper terrain had more small WB and better fit power‐law models, while regions with flatter terrain and greater precipitation had poorer fits. Extensive agriculture increased the proportion of small WB, causing distributions in some regions to fall outside theoretically predicted limits (βCDF< −1). Regional variation of WB size‐distributions can help develop and test integrated theory that accounts for geophysical and anthropogenic drivers of WB sizes, which is essential for scaling biogeochemical processes in aquatic systems.