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黄土丘陵沟壑区沟道土地整治对径流-泥沙-氮素 排放影响的模拟研究
孙彭成1; 高建恩1,2,3; 韩赛奇1; 尹燕1; 周媚芳3; 韩剑桥1
Source Publication农业环境科学学报

的降水强度下,30%和60%的沟道整治平均将降水的地表径流、土壤持留和地下径流比例从62∶21∶17 分别调整为45∶22∶33 和27∶23∶

Other Abstract

It is necessary but difficult to evaluate the influence of gully land consolidation on water resources and water quality in the loess
hilly-gully region. Through the rainfall simulation experiments in different rainfall intensities and channel land consolidation ratios, this
study evaluated impacts of gully land consolidation project on surface and underground runoff, analyzed responses of gully land consolidation
project on nitrogen emissions and also discussed the mechanism of gully land consolidation on precipitation distribution and nitrogen emissions.
Results indicated that the gully land consolidation project could regulate the distribution of precipitation, intercept rainfall runoff andpromote the transformation of underground runoff. The regulation level increased with the increase of gully land consolidation ratio,and the
average proportions of surface runoff, soil retention and underground residence from precipitation of different rainfall intensities can be adjusted
from 62∶21∶17 to 45∶22∶33 and 27∶23∶50 when the gully land consolidation ratios were designed as 30% and 60% respectively. The
gully land consolidation project reduced the discharge of sediment, nitrate nitrogen and ammonium nitrogen in surface runoff but with an increased
risk of nitrate nitrogen output in groundwater runoff.The gully land consolidation with a proportion of 60% could reduce 69%~82%
of sediment output, 63%~74% of ammonium nitrate output, and 31%~48% of nitrate nitrogen output in surface runoff, but increased 160%~
337% of nitrate nitrogen output and had no effect on the ammonium nitrogen output in groundwater runoff.

Keyword黄土丘陵沟壑区 沟道土地整治 降水转化 径流泥沙 氮素
Indexed By中文核心期刊要目总览
Document Type期刊论文
Recommended Citation
GB/T 7714
孙彭成,高建恩,韩赛奇,等. 黄土丘陵沟壑区沟道土地整治对径流-泥沙-氮素 排放影响的模拟研究[J]. 农业环境科学学报,2017,36(6):1177-1185.
APA 孙彭成,高建恩,韩赛奇,尹燕,周媚芳,&韩剑桥.(2017).黄土丘陵沟壑区沟道土地整治对径流-泥沙-氮素 排放影响的模拟研究.农业环境科学学报,36(6),1177-1185.
MLA 孙彭成,et al."黄土丘陵沟壑区沟道土地整治对径流-泥沙-氮素 排放影响的模拟研究".农业环境科学学报 36.6(2017):1177-1185.
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