Effect of Water Management on Interannual Variation in Bulk Soil Properties from the Eastern Coastal Everglades

被引:1
作者
Chambers, R. M. [1 ]
Hatch, R. L. [1 ]
Russell, T. M. [1 ]
机构
[1] Coll William & Mary, WM Keck Environm Field Lab, Williamsburg, VA 23187 USA
基金
美国国家科学基金会;
关键词
Bulk density; Organic matter; Phosphorus; Sulfur; Southeastern Everglades; NUTRIENT ENRICHMENT; WETLAND ECOSYSTEM; FLORIDA BAY; PHOSPHORUS; IRON; SEDIMENT;
D O I
10.1007/s13157-013-0393-1
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
We examined interannual variation in soil properties from wetlands occurring in adjacent drainage basins from the southeastern Everglades. Triplicate 10-cm soil cores were collected, homogenized, and analyzed during the wet season 2006-2010 from five freshwater sawgrass wetland marshes and three estuarine mangrove forests. Soil bulk density from the Taylor Slough basin ranged from 0.15 gm-cm(-3) to 0.5 gm-cm(-3), was higher than from the Panhandle basin every year, and generally increased throughout the study period. Organic matter as a percent loss on ignition ranged from 7 % to 12 % from freshwater marshes and from 13 % to 56 % from estuarine mangroves. Extractable iron in soils was similar among drainage basins and wetland types, typically ranging from 0.6 to 2.0 g Fe kg(-1). In contrast, inorganic sulfur was on average over four times higher from estuarine soils relative to freshwater, and was positively correlated with soil organic matter. Finally total soil phosphorus (P) was lower in freshwater soils relative to estuarine soils (84 +/- 5 versus 326 +/- 32 mg P kg(-1)). Total P from the freshwater marshes in the Panhandle basin rose throughout the study period from 54.7 +/- 8.4 to 107 +/- 17 mg P kg(-1), a possible outcome of differences in water management between drainage basins.
引用
收藏
页码:S47 / S54
页数:8
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