干旱区生态环境知识资源中心(Arid): Impact of long-term sub-soiling tillage on soil porosity and soil physical properties in the soil profile

Arid

DOI	10.1002/ldr.3874
	Impact of long-term sub-soiling tillage on soil porosity and soil physical properties in the soil profile
	Yang, Yonghui; Wu, Jicheng; Zhao, Shiwei; Mao, Yongping; Zhang, Jiemei; Pan, Xiaoying; He, Fang; van der Ploeg, Martine
通讯作者	Yang, YH (corresponding author), Henan Acad Agr Sci, Inst Plant Nutr & Resource Environm, Zhengzhou 450002, Peoples R China.
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2021
卷号	32 期号:10 页码:2892-2905
英文摘要	Long-term conventional tillage leads to soil compaction and formation of a plough layer, which affects soil physical properties, transport of water, and growth of crop roots toward deeper soil, resulting in soil degradation and a decline in crop productivity. Long-term sub-soiling tillage has proven to be an effective measure for remediating the plough layer and improving the structure and physical properties of the soil. In this study, we experimentally investigated the effects of long-term sub-soiling tillage in an arid region of Henan Province, China, along a deep soil (0-100 cm) profile over 8 years of sub-soiling tillage at a depth of 30 cm and compared the results against conventional tillage at a depth of 15 cm. We measured soil pore distributions of macropores (> 1 mm in diameter), mesopores (0.16-1.0 mm), and total pores (> 0.16 mm) measured by X-ray computed tomography (CT), soil total porosity (phi) and > 0.16 mm equivalent porosity measured by conventional methods, soil bulk density (rho(s)), soil organic carbon content (SOC), the proportion of macroaggregates (> 0.25 mm) (PMA), soil field moisture capacity (fc), available moisture content, and saturated hydraulic conductivity (K-sat). The results indicate that long-term sub-soiling tillage increased soil pore numbers at 0-35 cm depth (macropores, mesopores, and total pores), improved pore shape, and significantly increased porosity at 0-20 cm depth (macropores, mesopores, and total pores; p < 0.05) compared to conventional tillage. In addition, phi and > 0.16 mm equivalent porosity were increased by 10.4 and 87.1% at depths of 0-60 cm under sub-soiling tillage, respectively. SOC (0-55 cm depth), fc (0-45 cm depth), available moisture content (0-40 cm depth), K-sat (0-40 cm depth), and PMA (0-50 cm depth) were increased by 16.7, 14.3, 23.8, 471.5, and 98.3%, respectively, and rho(s) (0-60 cm depth) was reduced by 8.6%. Observed correlations between SOC, soil pore parameters, and soil physical properties suggest that soil pore parameters and soil physical properties can be improved by increasing SOC. These correlations are stronger under sub-soiling than that under conventional tillage. Therefore, sub-soiling is an effective technique for improving soil pore characteristics and physical properties while preventing soil degradation.
英文关键词	soil organic carbon soil physical properties soil pores sub‐ soiling X‐ ray CT scan
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000651202900001
WOS关键词	ORGANIC-MATTER ; MACROPORE CHARACTERISTICS ; WINTER-WHEAT ; FLOW ; TRANSPORT ; DYNAMICS ; CARBON ; YIELD ; LOAM
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351082
作者单位	[Yang, Yonghui; Wu, Jicheng; Zhang, Jiemei; Pan, Xiaoying; He, Fang] Henan Acad Agr Sci, Inst Plant Nutr & Resource Environm, Zhengzhou 450002, Peoples R China; [Yang, Yonghui; Wu, Jicheng; Zhang, Jiemei; Pan, Xiaoying; He, Fang] Minist Agr, Yuanyang Expt Stn Crop Water Use, Yuanyang, Peoples R China; [Zhao, Shiwei] Northwest A&F Univ, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China; [Mao, Yongping] Gen Hosp Jinshui Dist Zhengzhou, Zhengzhou, Peoples R China; [van der Ploeg, Martine] Wageningen Univ & Res, Hydrol & Quantitat Water Management Grp, Wageningen, Netherlands
推荐引用方式 GB/T 7714	Yang, Yonghui,Wu, Jicheng,Zhao, Shiwei,et al. Impact of long-term sub-soiling tillage on soil porosity and soil physical properties in the soil profile[J]. 西北农林科技大学,2021,32(10):2892-2905.
APA	Yang, Yonghui.,Wu, Jicheng.,Zhao, Shiwei.,Mao, Yongping.,Zhang, Jiemei.,...&van der Ploeg, Martine.(2021).Impact of long-term sub-soiling tillage on soil porosity and soil physical properties in the soil profile.LAND DEGRADATION & DEVELOPMENT,32(10),2892-2905.
MLA	Yang, Yonghui,et al."Impact of long-term sub-soiling tillage on soil porosity and soil physical properties in the soil profile".LAND DEGRADATION & DEVELOPMENT 32.10(2021):2892-2905.