Changes of C, N, P Contents in Soil Aggregates and Their Environmental Risk Across Eroded Landforms

QIAO Linming; HAN Hui; HE Gaohang; WANG Runze; WANG Rui; GUO Shengli

doi:10.13870/j.cnki.stbcxb.2022.03.038

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Changes of C, N, P Contents in Soil Aggregates and Their Environmental Risk Across Eroded Landforms

更新时间：2026-04-09

- Changes of C, N, P Contents in Soil Aggregates and Their Environmental Risk Across Eroded Landforms
- Vol. 36, Issue 3, Pages: 267-273(2022)
- 作者机构：
  
  1. 西北农林科技大学水土保持研究所, 黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西杨凌,712100
  2. 中国科学院水利部水土保持研究所, 陕西杨凌,712100
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2022.03.038
  CLC： S151.9
- Online First：27 May 2022，
  
  Published：2022
- 稿件说明：
移动端阅览
QIAO Linming, HAN Hui, HE Gaohang, et al. Changes of C, N, P Contents in Soil Aggregates and Their Environmental Risk Across Eroded Landforms[J]. 2022, 36(3): 267-273.
DOI：

QIAO Linming, HAN Hui, HE Gaohang, et al. Changes of C, N, P Contents in Soil Aggregates and Their Environmental Risk Across Eroded Landforms[J]. 2022, 36(3): 267-273. DOI： 10.13870/j.cnki.stbcxb.2022.03.038.

摘要

为明确侵蚀环境中长期施用化肥条件下农田土壤养分积累特征及其对流域面源污染的潜在威胁。在高塬沟壑区

分别采集塬面—坡地—沟道和川地—河漫滩—河道中土壤及泥沙样品

分析不同侵蚀地貌单元中团聚体粒级分布特征和不同团聚体中C、N、P含量变化及其潜在环境风险。结果表明:(1)沟道和河道等低洼地带＜63 μm粒级团聚体占比最高

川地—河漫滩—河道系统中＜63 μm粒径含量显著高于塬面—坡地—沟道系统;(2)塬面有机碳(SOC)、全氮(TN)、全磷(TP)、有效磷(Olsen—P)含量分别为8.49

1.19

1.23 g/kg和51.80 mg/kg

是80年代初的1.39

1.49

1.76

16.27倍;川地分别为6.80

1.00

1.07 g/kg和27.40 mg/kg

是80年代初的1.12

1.25

1.52

8.13倍

磷素积累最为明显。各粒级团聚体中SOC、TN、TP、Olsen—P含量由高到低依次为＞250 μm粒级

63~250 μm粒级

＜63 μm粒级;(3)无论是从塬面到沟道

还是从川地到河道

不同粒级团聚体中SOC、TN、TP、Olsen—P都呈现了显著降低趋势

但沟道和河道＜63 μm粒级团聚体中有效磷素含量已升高到塬面上世纪80年代初水平。易侵蚀迁移的团聚体(＜250 μm)分布特征和CaCl2—P的突变点问题突出

成为塬面和川地农田土壤养分积累影响水体环境的潜在风险源。因此

防治水土流失和改善施肥措施是确保黄河流域高质量发展的基础。

Abstract

This study aimed to clarify the characteristics of soil nutrient accumulation and the potential risk to non-point pollution in the basin under eroded environment and long-term fertilizer application on farmland. In table-gully region of the Loess Plateau

soil and sediment samples were collected to analyze the size distribution and C

P contents in aggregates and the potential environmental risks in different erosion landforms from Tableland-Slope-Gully system (TSG) and Flatland-Washland-Waterstead system (FWW). The results showed that:(1) The highest weight percentage of small aggregate (< 63 μm) was found in low-lying areas

such as gully and waterstead

and FWW system was significantly higher than TSG system. (2) The contents of SOC

Olsen-P in Tableland were 8.49

1.19

1.23 g/kg and 51.80 mg/kg

respectively

which were 1.39

1.49

1.76 and 16.27 times of the recorded in the early 1980s; and 6.80 g/kg

1.00 g/kg

1.07 g/kg

27.40 mg/kg for Flatland

respectively

which were 1.12

1.25

1.52 and 8.13 times of the recorded in the early 1980s. Moreover

soil phosphorus was accumulated most significantly among all soil nutrients. The SOC

Olsen-P contents in different aggregates showed the same decreasing pattern as follow > 250

63~250

< 63 μm. (3) The SOC

Olsen-P were significantly reduced along the erosion topographic units under TSG and FWR systems; additionally

soil phosphorus contents in 63 μm aggregate at gully and waterstead plots increased to the value of tableland in the early 1980s. The characteristics of aggregates (< 250 μm) distribution and the mutation point of CaCl2-P were prominent

and became the potential risk source for the water environment effected by the accumulation of soil nutrients under TSG and FWR systems. Therefore

preventing soil erosion and improving fertilization measures are the basis for ensuring high-quality development of the Yellow River basin.

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references

杨文治,余存祖.黄土高原区域治理与评价[M].北京:科学出版社,1992:125-128.

Ju X T, Gu B J, Wu Y Y, et al. Reducing China's fertilizer use by increasing farm size[J].Global Environmental Change,2016,41:26-32.

孙淑惠.黄河流域化肥利用效率测度及提升路径研究[D].济南:山东财经大学,2021.

Wang X Y, Tong Y N, Gao Y M, et al. Spatial and temporal variations of crop fertilization and soil fertility in the Loess Plateau in China from the 1970s to the 2000s[J].PLoS One,2014,9(11):e112273.

张平平,王飞,王蕾钦,等.黄土高原县域农业生产效率时空变化分析[J].干旱地区农业研究,2018,36(2):218-225.

郭胜利,车升国.黄土区退果还耕对黑垆土硝态氮积累和迁移的影响[J].植物营养与肥料学报,2009,15(5):1037-1043.

Bai X L, Gao J J, Wang S C, et al. Excessive nutrient balance surpluses in newly built solar greenhouses over five years leads to high nutrient accumulations in soil[J].Agriculture, Ecosystems and Environment,2020,288:e106717.

王淑英,樊廷录,李利利,等.长期施肥下黄土旱塬黑垆土磷平衡及农学阈值[J].干旱地区农业研究,2020,38(3):155-162.

郭胜利,姬洪飞,郝明德,等.黄土高塬沟壑区综合治理试验示范成果评述与高质量发展研究展望:以陕西省长武县王东沟小流域30年多治理实践为例[J].水土保持通报,2020,40(1):318-324.

贾珺杰,高扬,汪亚峰.黄土高原典型坝系流域碳氮湿沉降与水体碳氮流失特征[J].生态学报,2019,39(3):853-863.

韩凤朋,郑纪勇,王云强,等.黄河支流非点源污染物(N、P)排放量的估算[J].环境科学学报,2006,26(11):1893-1899.

韩谞,潘保柱,陈越,等.黄河水环境特征与氮磷负荷时空分布[J].环境科学,2021,42(12):5786-5795.

陶园,徐静,任贺靖,等.黄河流域农业面源污染时空变化及因素分析[J].农业工程学报,2021,37(4):257-264.

Wu G J, Cao W Z, Wang F F, et al. Riverine nutrient fluxes and environmental effects on China's estuaries[J]. Science of the Total Environment,2019,661:130-137.

中国科学院南京土壤研究所.土壤理化分析[M].上海:上海科学技术出版社,1978.

Liu X L, He Y Q, Zhang H L, et al, Impact of land use and soil fertility on distributions of soil aggregate fractions and some nutrients[J].Pedosphere,2010,20:666-673.

Elizabeth M B, Kirsten S H. Soil aggregate isolation method affects measures of intra-aggregate extracellular enzyme activity[J].Soil Biology and Biochemistry,2014,69:54-62.

Zhong Z K, Wu S J, Lu X Q, et al. Organic carbon, nitrogen accumulation, and soil aggregate dynamics as affected by vegetation restoration patterns in the Loess Plateau of China[J].Catena,2021,196:e104867.

Hu Y, Fister W, Rüegg H R, et al. The use of equivalent quartz size and settling tube apparatus to fractionate soil aggregates by settling velocity[J].Biogeosciences,2014,11(22):6209-6219.

Huang J, Xu C C, Ridoutt B G, et al. Nitrogen and phosphorus losses and eutrophication potential associated with fertilizer application to cropland in China[J].Journal of Cleaner Production,2017,159:171-179.

郭茹,杨京平,梁新强,等.太湖苕溪流域氮磷的生物学阈值评估[J].环境科学学报,2013,33(10):2756-2765.

Rémi D, Magalie D, Jean-Marcel D, et al. Assessing the impact of agricultural pressures on N and P loads and eutrophication risk[J].Ecological Indicators,2015,48:396-407.

Mc Dowell R, Sharpley A, Brookes P, et al. Relationship between soil test phosphorus and phosphorus release to solution[J].Soil Science,2001,166(2):137-149.

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