Rainfall Concentrations and Wet Atmospheric Deposition of Phosphorus and Other Constituents in Florida, U.S.A.
Rainfall Concentrations and Wet Atmospheric Deposition of Phosphorus and Other Constituents in Florida, U.S.A.
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美国佛罗里达州的降雨浓度和磷及其他成分的湿大气沉降
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
D. A. Dolske
中科院分区：
文献类型：
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作者：
H. J. Grimshaw;D. A. Dolske
磷（P）和其他成分的浓度在每周复合雨样品和同时获得的mallvolumes，从1992年9月至1993年10月收集，wereused估计体积加权浓度和湿大气沉积速率，并比较从以前的研究估计。由于这项研究的目的是估计区域代表性的浓度和湿大气沉积率，采样地点的选择，以避免网站的特点是大量的本地再悬浮或再循环现象。在佛罗里达的采样站之间，钙（Ca）、镁（Mg）、钾（K）、钠（Na）、氢（H）和氯（Cl）离子的湿沉降速率存在显著差异。因此，全州范围内的沉积速率和体积加权浓度估计只有P，和fororthophosphate（PO 4），铵（NH 4），硝酸盐（NO3）和硫酸盐（SO 4）离子，没有发现空间变化。在有记录的时期内，全州湿大气磷沉降的平均速率和平均降雨磷浓度分别为25±>5 μg P M-2 wk-1和1.3±0.1 μg P L-1。
Concentrations of phosphorus (P) and other constituents inweekly composited rain samples and concurrently acquired rainfallvolumes, collected from September 1992 through October 1993, wereused to estimate volume-weighted concentrations and wetatmospheric deposition rates, and compared to estimates fromprevious studies. Since this study’s purpose was to estimateregionally representative concentrations and rates of wetatmospheric deposition, sampling locations were chosen to avoidsites characterized by substantial local resuspension orrecycling phenomena. Significant differences were found in the wet deposition rates of calcium (Ca), magnesium (Mg), potassium (K), sodium (Na), hydrogen (H), and chloride (Cl) ions between sampling stationsin Florida. Consequently, statewide deposition rates and volume-weighted concentrations were estimated only for P, and fororthophosphate (PO4), ammonium (NH4), nitrate (NO3) and sulfate (SO4) ions that were not found to be spatially variable. Over the period of record, the mean rate of wet atmospheric P deposition across the state, and the mean rainfall P concentration, were found to be 25±>5 μg P M-2 wk-1 and 1.3±0.1 μg P L -1, respectively.