干旱区生态环境知识资源中心(Arid): Effects of micro-climatic conditions on soil properties along a climate gradient in oak forests, west of Iran: Emphasizing phosphatase and urease enzyme activity

Arid

DOI	10.1016/j.catena.2023.106960
	Effects of micro-climatic conditions on soil properties along a climate gradient in oak forests, west of Iran: Emphasizing phosphatase and urease enzyme activity
	Jafarian, Nahid; Mirzaei, Javad; Omidipour, Reza; Kooch, Yahya
通讯作者	Mirzaei, J
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2023
卷号	224
英文摘要	Climatic characteristics are among most important factors influence on soil properties. Changes in climatic characteristics could be derived in different scales such as local-scale changes in topographical factors (i.e., slope aspect, known as micro-climate). However, the effects of micro-climate condition on soil properties (especially enzyme activity that are effective on nutrient cycles) along climatic gradient have rarely been investigated in arid and semi-arid forest ecosystems. For this purpose, soil sampling was carried out using 60 composite soil samples in three regions with different climate conditions including slightly-arid, moderately-arid and semi-arid in two slope aspects (north vs. south) in oak forests, western Iran. The results showed that urease and phosphatase enzymes activity significantly varied as a function of climate condition, with humped-shaped patterns through the climate gradient. Soil respiration (R), substrate induced respiration (SIR) and microbial biomass carbon (MBC) simultaneously reflected the influence of the climate condition and slope aspect (p < 0.05). From slightly-arid to semi-arid areas, the soil chemical, biological (R and SIR), and physical (saturation point) properties significantly increased while, soil lime, EC, pH, and silt declined (p < 0.05). Structural equation modelling showed that, the soil's chemical and biological properties were the best mediators for indirect effects of climate condition and slope aspects on soil enzyme activities. The results also revealed that the phosphatase enzyme is indirectly influenced by climatic condition (beta = 0.114 and P-value = 0.029) and slope aspect (beta =-0.067 and P- value = 0.05), while the urease enzyme was directly and indirectly affected by climate condition and slope aspect, respectively. The principal component analysis indicated that it was easier to separate the climatic region than to separate them based on the slope's aspect. This study suggested that on a large scale, climatic charac-teristics play a more critical role in changing soil properties. Still, on a small scale, the slope aspect determines changes in soil biology.
英文关键词	Climatic condition Forest ecosystem Slope aspect Micro-climate Enzyme activity
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000942482100001
WOS关键词	SLOPE ASPECT ; BIOCHEMICAL-PROPERTIES ; ECOSYSTEM SERVICES ; ORGANIC-MATTER ; PERSIAN OAK ; LAND-USE ; BIOMASS ; TEMPERATURE ; VEGETATION ; ZAGROS
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395676
推荐引用方式 GB/T 7714	Jafarian, Nahid,Mirzaei, Javad,Omidipour, Reza,et al. Effects of micro-climatic conditions on soil properties along a climate gradient in oak forests, west of Iran: Emphasizing phosphatase and urease enzyme activity[J],2023,224.
APA	Jafarian, Nahid,Mirzaei, Javad,Omidipour, Reza,&Kooch, Yahya.(2023).Effects of micro-climatic conditions on soil properties along a climate gradient in oak forests, west of Iran: Emphasizing phosphatase and urease enzyme activity.CATENA,224.
MLA	Jafarian, Nahid,et al."Effects of micro-climatic conditions on soil properties along a climate gradient in oak forests, west of Iran: Emphasizing phosphatase and urease enzyme activity".CATENA 224(2023).