[1]HAN Meiqing,WU Weizhou,WAN Binghong,et al.Soil Anti-Scourability and Its Influence Factors of Damaged Steep Slope of Chenglan Railway[J].Research of Soil and Water Conservation,2021,28(05):400-406.
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Soil Anti-Scourability and Its Influence Factors of Damaged Steep Slope of Chenglan Railway
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
28
Number of periods:
2021 05
Page number:
400-406
Column:
Public date:
2021-08-20
- Title:
- Soil Anti-Scourability and Its Influence Factors of Damaged Steep Slope of Chenglan Railway
- Keywords:
- soil and water conservation &; desertification combating; soil anti-scourability; path analysis; high and steep slope; Chenglan Railway
- CLC:
- S157.1
- DOI:
- -
- Abstract:
- Northwestern Sichuan Province is an important ecological barrier in the upper reaches of the Yangtze River Basin. Anti-scourability of frame backfill soil was the focus in a large number of high and steep slopes of infrastructure projects,such as highways,railways and buildings. In order to explore the characteristics and influences of soil anti-scourability in different recovery periods of damaged slopes near Chenglan Railway,the zones of Zhenjiangguan and Chuanzhusi town were divided into original vegetation area(Z1,C1),artificial backfill area(Z2,C2),and natural restoration area(Z3,C3),which belong to dry valley area and subalpine area,respectively. Undisturbed soil scouring experiment and path analysis were applied to study soil anti-scourability and main factors. The results showed that sediment concentration and soil anti-scourability index decreased and increased with the increase of scouring time,respectively,and gradually became stable after 10 minute. The relationship between sediment concentration,scouring time and soil anti-scourability index can be expressed by power function. The anti-scourability of artificial backfill soil was the worst,followed by that of natural restoration area and original vegetation area. On the whole,the soil anti-scourability of subalpine area was greater than that of dry valley area. Through correlation analysis and path analysis,organic matter content,soil density,total porosity and soil bulk density were the leading factors affecting the soil anti-scourability of high and steep slopes near Chenglan Railway,in which soil density showed the strongest direct effect on soil anti-scourability. Increasing the content of soil organic matter and soil total porosity in artificial backfill soil can improve soil anti-scourability,and then provide important basis for vegetation restoration.
- References:
- [1] 刘红岩,周正朝,王宁,等.黄土区草被生长初期土壤抗冲性及其影响因素[J].中国水土保持科学,2018,16(2):55-61.[2] 田秀民,马春霞,鲁旭东,等.微地形重塑对大型排土场平台水沙及植被的影响[J ].水土保持研究,2021,28(3):74-82.[3] 孙丽丽,査轩,黄少燕,等.花岗岩红壤区不同治理模式土壤抗冲性因素试验[J].水土保持学报,2019,33(5):34-40,49.[4] 肖俊波,孙宝洋,李占斌,等.冻融循环对风沙土物理性质及抗冲性的影响试验[J].水土保持学报,2017,31(2):67-71.[5] 吕刚,马君蕙,王磊,等.辽西低山丘陵区不同密度荆条实地放水冲刷试验研究[J].灌溉排水学报,2019,38(S1):94-97.[6] 晏伟明,谢颂华,刘苑秋,等.生产建设项目边坡及弃土侵蚀影响机制研究进展[J].中国水土保持科学,2016,14(4):142-152.[7] 王丹丹,张建军,茹豪,等.晋西黄土高原不同地类土壤抗冲性研究[J].水土保持学报,2013,27(3):28-32,38.[8] 郭明明,王文龙,史倩华,等.黄土高塬沟壑区退耕地土壤抗冲性及其与影响因素的关系[J].农业工程学报,2016,32(10):129-136.[9] 徐文秀,鲍玉海,韦杰,等.水库消落带典型草本植物根系对土壤抗冲性能的影响[J].水土保持学报,2019,33(4):65-71,109.[10] 石杨子.成兰铁路弃渣场生态修复技术方案初步研究[D].重庆:西南交通大学,2014.[11] 国家林业局.森林土壤分析方法[M].北京:中国标准出版社,2000.[12] 蒋定生,范兴科,李新华,等.黄土高原水土流失严重地区土壤抗冲性的水平和垂直变化规律研究[J].水土保持学报,1995,9(2):1-8.[12] 王雅琼,张建军,李梁,等.祁连山区典型草地生态系统土壤抗冲性影响因子[J].生态学报,2018,38(1):122-131.[13] 宋小园,朱仲元,刘艳伟,等.通径分析在SPSS逐步线性回归中的实现[J].干旱区研究,2016,33(1):108-113.[14] 金晓,陈丽华.晋西黄土区不同植被类型土壤抗冲性及表层根系分布特征[J].水土保持学报,2019,33(6):120-126.[15] 伏耀龙,张兴昌.岷江干旱河谷区不同土地利用方式下土壤抗冲性试验[J].农业机械学报,2012,43(7):50-55.[16] 占海歌.3种草本植物根系特征对土壤抗侵蚀性能影响[D].武汉:华中农业大学,2017.[17] 郭明明,王文龙,康宏亮,等.黄土高塬沟壑区植被自然恢复年限对坡面土壤抗冲性的影响[J].农业工程学报,2018,34(22):138-146.[18] 王健,刘旦旦,张鹏辉.土壤密度对土壤抗侵蚀性的影响[J].灌溉排水学报,2013,32(1):65-68.
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Last Update:
2021-08-20