Evaluating Nitrate Recovery by Ion‐Exchange Resin Bags
Evaluating Nitrate Recovery by Ion‐Exchange Resin Bags
复制标题
评估离子交换树脂袋的硝酸盐回收率
DOI：
10.2136/sssaj1993.03615995005700050008x
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发表时间：
1993
影响因子：
2.9
通讯作者：
L. Jackson
中科院分区：
文献类型：
--
作者：
L. Wyland;L. Jackson
以离子交换树脂袋为捕捉器，对淋溶土壤NO-⁻₃-N进行了测试。在实验室实验中，IER袋子从含有0.09~40.74g NO⁻₃-N kg⁻₃？树脂的溶液中回收了84.7%的NO⁻-N，但当浓度较高时，回收率下降。在土柱中，当没有⁻₃-N在快速单次脉冲后缓慢地通过土壤剖面时，无⁻₃-N的回收率很低(36.2%)，但在维持较高的流量时，则提高了(87.1%)。在田间，使用土壤渗滤袋估计没有淋失的⁻₃-N落在从土芯和吸力蒸渗仪估计的数值范围内。IER袋的优势归因于在被动拦截重力水流的过程中累积回收NO、⁻₃-N。副署长的贡献。蔬菜类作物，大学。加利福尼亚州戴维斯，邮编：95616。
Ion-exchange resin (IER) bags were tested as traps for leached soil NO⁻₃-N. In laboratory experiments, IER bags recovered 84.7% of the NO⁻₃-N from solutions containing 0.09 to 40.74 g NO⁻₃-N kg⁻¹ resin, but recovery decreased at higher concentrations. In soil columns, NO⁻₃-N recovery was poor (36.2%) when NO⁻₃-N moved slowly through the soil profile after a rapid single pulse, but improved (87.1%) when higher flow was sustained. In the field, estimates of leached NO⁻₃-N using IER bags fell within the range of values estimated from soil cores and suction lysimeters. Advantages of IER bags are attributed to cumulative recovery of NO⁻₃-N during passive interception of gravitational water flow. Contribution of the Dep. of Vegetable Crops, Univ. of California, Davis, CA 95616.