黄土丘陵沟壑区退耕还草年限对土壤性质和入渗性能的影响

徐远慧; 冯璐; 屈媛媛; 李凯; 李梦瑶; 周楠; 徐学选

doi:10.13870/j.cnki.stbcxb.2022.02.007

您当前的位置：

首页 >

文章列表页 >

黄土丘陵沟壑区退耕还草年限对土壤性质和入渗性能的影响

更新时间：2024-11-07

- 黄土丘陵沟壑区退耕还草年限对土壤性质和入渗性能的影响
- Effects of Different Restoration Years of Grain for Green on Soil Properties and Infiltration Performance in Loess Gully Region
- 水土保持学报 2022年36卷第2期页码：57-63
- 作者机构：
  
  1. 西北农林科技大学草业与草原学院, 陕西杨凌,712100
  2. 西北农林科技大学水土保持研究所, 陕西杨凌,712100
  3. 中国科学院水利部水土保持研究所, 陕西杨凌,712100
- 作者简介：
  
  [ "徐远慧(1997-),男,湖南龙山人,硕士研究生,主要从事草地生态研究。E-mail:xuyuanhui@nwafu.edu.cn" ]
- 基金信息：
  
  国家自然科学基金项目“黄土丘陵区土壤斥水性及其对降水入渗机制的影响研究”（41977426）
- DOI：10.13870/j.cnki.stbcxb.2022.02.007
  中图分类号： S157.2
- 纸质出版：2022
- 稿件说明：
移动端阅览
徐远慧, 冯璐, 屈媛媛, 等. 黄土丘陵沟壑区退耕还草年限对土壤性质和入渗性能的影响[J]. 水土保持学报, 2022,36(2):57-63.

XU Yuanhui, FENG Lu, QU Yuanyuan, et al. Effects of Different Restoration Years of Grain for Green on Soil Properties and Infiltration Performance in Loess Gully Region[J]. 2022, 36(2): 57-63.
徐远慧, 冯璐, 屈媛媛, 等. 黄土丘陵沟壑区退耕还草年限对土壤性质和入渗性能的影响[J]. 水土保持学报, 2022,36(2):57-63. DOI： 10.13870/j.cnki.stbcxb.2022.02.007.

XU Yuanhui, FENG Lu, QU Yuanyuan, et al. Effects of Different Restoration Years of Grain for Green on Soil Properties and Infiltration Performance in Loess Gully Region[J]. 2022, 36(2): 57-63. DOI： 10.13870/j.cnki.stbcxb.2022.02.007.

摘要

我国退耕还林(草)工程实施20多年来取得显著成效

为评估退耕还林(草)对土壤性质和入渗性能的改善效果及其内在机理

取黄土丘陵沟壑区农地和退耕年限为5年(C5 a)、15年(C15 a)和25年(C25 a)撂荒草地的0-30 cm土壤测定其水稳性团聚体特征、根系特征和入渗速率等性质

并分析了影响不同撂荒年限草地土壤的入渗性能的因素。结果表明

不同撂荒年限草地有机质含量(SOM)、全氮含量、根系性状均表现为C25 a>C15 a>农地≈C5 a;农地0-30 cm土壤大团聚体的平均重量直径(MWD)为0.78 mm

几何平均直径(GMD)为0.20 mm

分形维数(D)为2.89

土壤初始入渗率(IIR)和稳定入渗率(SIR)测定结果分别为7.80

2.58 mm/min;5年草地0-30 cm土壤大团聚体的平均重量直径(MWD)为2.03 mm

几何平均直径(GMD)为0.62 mm

分形维数(D)为2.73

土壤初始入渗率(IIR)和稳定入渗率(SIR)测定结果分别为6.36

3.21 mm/min;15年草地0-30 cm土壤大团聚体的平均重量直径(MWD)为2.25 mm

几何平均直径(GMD)为0.77 mm

分形维数(D)为2.69

土壤初始入渗率(IIR)和稳定入渗率(SIR)测定结果分别为11.12

4.33 mm/min;25年草地0-30 cm土壤大团聚体的平均重量直径(MWD)为2.44 mm

几何平均直径 (GMD)为0.93 mm

分形维数(D)为2.64

土壤初始入渗率(IIR) 和稳定入渗率(SIR)测定结果分别为13.67

5.93 mm/min;土壤SIR与SOM、容重、>5 mm粒级的团聚体含量呈极显著正相关关系(P<0.01)。退耕还草对土壤的改善作用随着退耕年限延长而不断增强

因此在水土流失严重地区应加以维护退耕还草的现有成果

并加强对退耕还草初期(5 a)草地的人工干预和管理以兑现其后期潜在的生态价值。

Abstract

Remarkable achievement has been obtained since the implementation of the Grain for Green project in China. Aiming to explore the improvement effect of restoration years on soil properties and infiltration performance and its mechanism

the water stable aggregate characteristics

root characteristics and infiltration rate of 30-cm-depth farmland and grassland soils with 5-year (C5 a)

15-year (C15 a) and 25-year (C25 a) restoration in the Loess Hilly and gully area were measured. The factors affecting soil infiltration were analyzed. The results showed that the organic matter content (SOM)

total nitrogen content and root traits of grassland soil with different abandoned years were C25 a>C15 a>farmland≈C5 a. The mean weight diameter (MWD)

geometric mean diameter (GMD)

fractal dimension (D) of 0-30 cm soil aggregates and initial infiltration rate (IIR) and stable infiltration rate (SIR) were 0.78

0.2 mm

2.89

7.80 and 2.58 mm/min for farmland; 2.03

0.62 mm

2.73

6.36 and 3.21 mm/min for 5-year grassland; 2.25

0.77 mm

2.69

11.12 and 4.33 mm/min for 15-year grassland; 2.44

0.93 mm

2.64

13.67 and 5.93 mm/min for 25-year grassland

respectively. There was a significant positive correlation between soil SIR and SOM

bulk density and aggregate content of >5 mm (P<0.01). The improvement effect to soil of restoration continues to increase with the extending years of Grain for Green. Therefore

the existing achievements of Grain for Green should be maintained in areas with serious soil and water loss

and the manual intervention and management in the early (5-year) stage of restoration should be strengthened to realize its potential ecological value in the later stages.

关键词

Keywords

references

王国梁,刘国彬,周生路.黄土丘陵沟壑区小流域植被恢复对土壤稳定入渗的影响[J].自然资源学报,2003,18(5):529-535.

谢怡凡,姚顺波,邓元杰,等.延安市退耕还林(草)工程对生境质量时空格局的影响[J].中国生态农业学报,2020,28(4):575-586.

Yu M Z, Zhang L L, Xu X X, et al. Impact of land-use changes on soil hydraulic properties of CalcaricRegosols on the Loess Plateau, NW China[J].Journal of Plant Nutrition and Soil Science,2015,178:486-498.

邓元杰,候孟阳,谢怡凡,等.退耕还林还草工程对陕北地区生态系统服务价值时空演变的影响[J].生态学报,2020,40(18):6597-6612.

Onweremadua E U, Onyiab V N, Anikwe M A N. Carbon and nitrogen distribution in water-stable aggregates under two tillage techniques in Fluvisols of Owerriarea, Southeastern Nigeria[J].Soil and Tillage Research,2007,97:195-206.

Kalhoro S A, Ding K, Zhang B Y, et al. Soil infiltration rate of forestland and grassland over different vegetation restoration periods at Loess Plateau in northern hilly areas of China[J].Landscape and Ecological Engineering,2019,15:91-99.

Ren Z P, Zhu L J, Wang B, et al. The effects of different land uses on soil hydraulic properties in the Loess Plateau, Northern China[J].Land Degradetion and Development,2018,29:3907-3916.

Kalhoro S A, Xu X X, Ding K, et al. Soil hydraulic conductivity as affected by vegetation restoration age on the Loess Plateau, China[J].Journal of Arid Land,2016,8(4):564-555.

冯璐,丁康,屈媛媛,等.黄土塬边坡植被类型对土壤孔隙的影响[J].草业科学,2020,37(4):625-634.

冯棋,杨磊,王晶,等.黄土丘陵区植被恢复的土壤碳水效应[J].生态学报,2019,39(18):6598-6609.

陈文媛,徐学选,华瑞,等.黄土丘陵区林草退耕年限对土壤团聚体特征的影响[J].环境科学学报,2017,37(4):1486-1492.

纪月,杜琳青,田鹏,等.米仓山不同退耕年限土壤理化性质变化特征[J].水土保持通报,2020,40(5):48-54.

丁康,徐学选,陈文媛,等.长武塬边坡不同植被下土壤团聚体及入渗特征[J].北京林业大学学报,2017,39(12):44-51.

朱良君,张光辉,任宗萍.4种土壤入渗测定方法的比较[J].水土保持通报,2012,32(6):162-167.

Ewa B, Jarosław L, Maciej Z, et al. Restoration of forest soil and vegetation 15 years after landslides in a lower zone of mountains in temperate climates[J].Ecological Engineering,2016,97:503-515.

曾健,费良军,裴青宝.土壤容重对红壤水分垂直入渗特性的影响[J].排灌机械工程学报,2017,35(12):1081-1087.

Neris J, Jimenez C, Fuentes J, et al. Vegetation and land-use effects on soil properties and water infiltration of Andisols in Tenerife (Canary Islands, Spain)[J].Catena,2012,98:55-62.

刘均阳,周正朝,苏雪萌.植物根系对土壤团聚体形成作用机制研究回顾[J].水土保持学报,2020,34(3):267-273.

Hudek C, Stanchi S, Amico D, et al. Quantifying the contribution of the root system of alpine vegetation in the soil aggregate stability of moraine[J].International Soil and Water Conservation Research,2017,5(1):36-42.

Demenois J, Carriconde F, Bonaventure P, et al. Impact of plant root functional traits and associated mycorrhizas on the aggregate stability of a tropical Ferralsol[J].Geoderma,2018,312:6-16.

Li Q, Liu G B, Zhang Z, etal.Relative contribution ofroot physical enlacing and biochemistrical exudates tosoil erosion resistance in the Loess soil[J].Catena,2017,153:61-65.

Fernando D L, Gutierrez C, Gonzalez C, et al. Root aggregation in a pumiceous sandy soil[J].Geoderma,2007,142:308-317.

Ding W F, Zhang X C. An evaluation on using soil aggregate stability as the indicator of interrillerodibility[J].Journal of Mountain Science,2016,13(5):831-843.

Mcqueen D J, Shepherd T G. Physical changes and compaction sensitivity of a fine-textured, poorly drained soil (Typic Endoaquept) under varying durations of cropping, Manawatu Region, New Zealand[J].Soil and Tillage Research,2002,63(3):93-107.

安韶山,张玄,张扬,等.黄土丘陵区植被恢复中不同粒级土壤团聚体有机碳分布特征[J].水土保持学报,2007,21(6):109-113.

赵世伟,苏静,杨永辉,等.宁南黄土丘陵区植被恢复对土壤团聚体稳定性的影响[J].水土保持研究,2005,12(3):27-28.

Zhang G S, Chan K Y, Oates A, et al. Relationship between soil structure and runoff/soil loss after 24 years of conservation tillage[J].Soil and Tillage Research,2007,92(1/2):122-128.

Price K, Jackson C R, Parker A J. Variation of surficial soil hydraulic properties across land uses in the southern Blue Ridge Mountains, North Carolina, USA[J].Journal of Hydrology,2020,383(3/4):256-268.

浏览量

900

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

黄土丘陵沟壑区植物根系对土壤优先流的影响机理

长期有机替代土壤团聚体及有机碳分布特征

秦岭水源地生态恢复下土壤全氮分布对侵蚀的响应

黄土高寒区典型小流域土壤团聚体稳定性及可蚀性空间变异特征

生物结皮对植被混凝土边坡土壤团聚体分布及稳定性的影响