干旱区生态环境知识资源中心(Arid): Characteristics of snowmelt transport in farmland soil in cold regions: The regulatory mechanism of biochar

Arid

DOI	10.1002/hyp.14499
	Characteristics of snowmelt transport in farmland soil in cold regions: The regulatory mechanism of biochar
	Zuo, Yutian; Fu, Qiang; Li, Tianxiao; Liu, Dong; Hou, Renjie; Li, Qinglin; Li, Mo; Meng, Fanxiang
通讯作者	Li, TX ; Liu, D
来源期刊	HYDROLOGICAL PROCESSES
ISSN	0885-6087
EISSN	1099-1085
出版年	2022
卷号	36 期号:2
英文摘要	As a vital water source in cold and arid areas, snowmelt alleviates spring drought problems. Based on a laboratory simulation tests, after nine freeze-thaw cycles, under the simulated conditions of different biochar application amounts (0%, 1%, 2% and 3%, denoted as H0, H1, H2 and H3, respectively) in the spring soil thawing period, the characteristics of soil structure and the process of snowmelt transport in farmland black soil were explored. The research results showed that (a) the addition of biochar increased the soil total porosity and the proportion of pores in the middle section (0.3 similar to 100 mu m) and reduced the proportion of soil voids (> 100 mu m) and extremely micro pores (< 0.3 mu m). (b) As the biochar application amount increased, the stability of soil aggregates first increased and then decreased. The rules of the medium aggregates (0.25 similar to 2 mm) were consistent with the structural stability indexes, while the rules of the silt and clay (< 0.106 mm) were opposite. (c) With an increase in the amount of applied biochar, the saturated water conductivity of unfrozen soil increased; however, the opposite effect was observed for frozen soil. The coefficient Xi was developed to evaluate the soil infiltration performance in the thawing period based on the soil saturation water conductivity. Xi exhibited a good correlation with snowmelt transport. (d) Evaporation, infiltration and runoff also showed a trend of first improving and then producing negative effects with increasing biochar application amount in the snowmelt period. From the perspective of the utilization efficiency of spring snowmelt, the utilization rate of H0 snowmelt was 71.13% and it increased by 6.4% and 1.2% in H1 and H2, respectively, and decreased by 13.53% in the H3 treatment compared with the H0 treatment. Considering the soil structure and soil moisture demand needed for spring sowing, 1% biochar application amount is the most suitable for farmland black soil.
英文关键词	biochar farmland freeze-thaw cycle snowmelt transport soil structure
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000760417000023
WOS关键词	UNFROZEN WATER-CONTENT ; HYDRAULIC CONDUCTIVITY ; FROZEN ; INFILTRATION ; FLOW ; REDISTRIBUTION ; PERMEABILITY ; EVAPORATION ; COMPACTION
WOS类目	Water Resources
WOS研究方向	Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393043
推荐引用方式 GB/T 7714	Zuo, Yutian,Fu, Qiang,Li, Tianxiao,et al. Characteristics of snowmelt transport in farmland soil in cold regions: The regulatory mechanism of biochar[J],2022,36(2).
APA	Zuo, Yutian.,Fu, Qiang.,Li, Tianxiao.,Liu, Dong.,Hou, Renjie.,...&Meng, Fanxiang.(2022).Characteristics of snowmelt transport in farmland soil in cold regions: The regulatory mechanism of biochar.HYDROLOGICAL PROCESSES,36(2).
MLA	Zuo, Yutian,et al."Characteristics of snowmelt transport in farmland soil in cold regions: The regulatory mechanism of biochar".HYDROLOGICAL PROCESSES 36.2(2022).