[1]王国重,李中原,屈建钢,等.模拟降雨条件下豫西南山区农地径流污染物变化规律[J].水土保持研究,2017,24(04):311-314,323.
　WANG Guozhong,LI Zhongyuan,QU Jiangang,et al.Under Artificial Rainfall the Changing Law of Pollutants in Runoff in Farmland in Southwest Mountains of Henan Province[J].Research of Soil and Water Conservation,2017,24(04):311-314,323.
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模拟降雨条件下豫西南山区农地径流污染物变化规律

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 24 期数: 2017年04期 页码: 311-314,323 栏目: 出版日期: 2017-08-28
Title:
Under Artificial Rainfall the Changing Law of Pollutants in Runoff in Farmland in Southwest Mountains of Henan Province
作者:
王国重1, 李中原2, 屈建钢3, 徐建昭3, 闫东锋4
1. 黄河水文水资源科学研究院, 郑州 450004;
2. 河南省水文水资源局, 郑州 450002;
3. 河南省水土保持监督监测总站, 郑州 450008;
4. 河南农业大学 林学院, 郑州 450002
Author(s):
WANG Guozhong1, LI Zhongyuan2, QU Jiangang3, XU Jianzhao3, YAN Dongfeng4
1. Hydrology and water resources of Yellow River scientific research institute, Zhengzhou 450004, China;
2. Hydrology and water resources bureau in He’nan Province, Zhengzhou 450003, China;
3. Soil and water conservation supervision and inspection station in He’nan Province, Zhengzhou 450008, China;
4. Forestry college of Henan agricultural university, Zhengzhou 450002, China
关键词:
人工降雨; 径流; 农地; 养分; 雨强
Keywords:
artificial rainfall;  runoff; farmland; nutrient; rainfall intensity
分类号:
X14
摘要:
坡耕地和梯田是丹江口水库水源区常见的农地类型，为了减少养分和水土流失、改进农作措施，采用人工模拟降雨方法，研究了不同雨强下这两种用地径流中养分变化规律。结果表明：（1）两种土壤径流中TN，TP，COD随降雨时间均呈波状变化，不同雨强下梯田径流中TN的含量为：3.36 mg/L（0.5 mm/min时），5.18 mg/L（2.5 mm/min时），4.27 mg/L（3.0 mm/min时），坡耕地中相应为2.66 mg/L，4.56 mg/L，4.18 mg/L；不同雨强下梯田径流中TP的含量为：0.81 mg/L（0.5 mm/min时），0.92 mg/L（2.0 mm/min时），1.56 mg/L（2.5 mm/min时），2.53 mg/L（3.0 mm/min时），坡耕地中的值依次为0.59 mg/L，1.03 mg/L，0.62 mg/L，2.04 mg/L。说明梯田中TN，TP的含量要高于坡耕地。（2）不同雨强下梯田径流中COD含量为：303.56 mg/L（1.0 mm/min时），685.16 mg/L（2.0 mm/min时），617.66 mg/L（3.0 mm/min时），坡耕地中则为419.63 mg/L，644.62 mg/L，721.17 mg/L，研究表明坡耕地更易发生有机质的流失。因此，对坡耕地进行梯田化治理可减少养分和水土流失、提高作物产量。
Abstract:
Slope cropland and terrace are common land use types in Danjiangkou reservoir catchment areas and indoor artificial rainfall simulation methods are employed to study nutrients’ changing law of the two soils under different rainfall intensities, so as to prevent nutrients， soil and water erosion, improving farming practices. The results are as follows: (1) the nutrients of TN, TP and COD all have wavily changed in the two kind soils runoff with rainfall time, the TN content are respectively 3.36 mg/L (0.5 mm/min), 5.18 mg/L (2.5 mm/min), 4.27 mg/L (3.0 mm/min) in terrace in different rainfall intensity and the relevant values in hilly land are 2.66 mg/L, 4.56 mg/L, 4.18 mg/L; the TP content are respectively 0.81 mg/L (0.5 mm/min), 0.92 mg/L (2) / 0 mm/min), 1.56 mg/L (2.5 mm/min), 2.53 mg/L (3.0 mm/min) in terrace in different rainfall intensity and the relevant values in hilly land are 0.59 mg/L, 1.03 mg/L, 0.62 mg/L, 2.04 mg/L, which shows TN and TP content in terrace are higher than the one in hilly land. (2) the COD content are respectively 303.56 mg/L (1.0 mm/min), 685.16 mg/L (2.0 mm/min), 617.66 mg/L (3.0 mm/min) in terrace in different rainfall intensity and the relevant values in hilly land are 419.63 mg/L, 644.62 mg/L, 721.17 mg/L, which indicates it’s more likely to happen the loss of organic matter in hilly land. Therefore， terrance engineering to hilly land can reduce nutrients loss, water and soil erosion, increase crop yield.

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备注/Memo

收稿日期:2016-07-11;改回日期:2016-08-04。
基金项目:河南省科技攻关计划“基于分形理论的丹江口水库水源区农业面源污染研究及防治措施”（GG201412）；“河南省丹江口水库水源区水土保持与非点源污染特征研究”（GG200901）

更新日期/Last Update: 1900-01-01