SEDIMENT-RELATED TRANSPORT OF NUTRIENTS FROM SOUTHWESTERN WATERSHEDS

被引：11

作者：

BOLTON, SM

WARD, TJ

COLE, RA

机构：

[1] Dept. of Civ., Agric. and Geological Engrg., New Mexico State Univ., Las Cruces, NM

[2] Dept. of Fishery and Wildlife Sci., New Mexico State Univ., Las Cruces, NM

来源：

JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING | 1991年 / 117卷 / 05期

关键词：

D O I：

10.1061/(ASCE)0733-9437(1991)117:5(736)

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Data from rainfall simulation experiments conducted in Arizona and New Mexico were used to identify relationships between total suspended sediment (TSS) concentrations (kg/ha/mm of runoff) in runoff and concentrations (kg/ha/mm of runoff) of total phosphorus (TP), total volatile suspended sediment (TVSS), and total nitrogen (TN). The units of kg/ha/mm of runoff are equivalent to mg/l divided by 100. Data were collected from pinyon-juniper, ponderosa pine, short grass prairie, creosote bush, and bottomland vegetation types. Lumping data from these five vegetation types yielded a relationship for total phosphorus of TP = 0.0013(TSS)0.83 with a linear correlation coefficient of r = 0.77. The relationship for total volatile suspended sediment was TVSS = 0.274(TSS)0.72 (r = 0.91). A poor relationship was found for total nitrogen with TN = 0.008(TSS)0.15 (with r = 0.11). These relationships were validated using data from other rainfall simulation experiments and naturally occurring ephemeral streamflow in southern New Mexico.

引用

页码：736 / 747

页数：12

共 25 条

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