Modeling of forest soil and litter health using disturbance and landscapeheterogeneity indicators in northern Iran

doi:https://doi.org/10.1007/s11629-016-4270-2

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2017 > Vol14 No.9

	Modeling of forest soil and litter health using disturbance and landscapeheterogeneity indicators in northern Iran
	Malihe ERFANI; Abdolrassoul SALMANMAHINY; Afshin DANEHKAR; Vahid ETEMAD
刊名	Journal of Mountain Science
	2017-09
卷号	14 期号:9 页码:1801-1813
关键词	Soil Health Forest Litter Structural Equation Modeling (Sem) Partial Least Squares (Pls) Ecosystem Approach Northern Iran
ISSN号	1672-6316
DOI	https://doi.org/10.1007/s11629-016-4270-2
通讯作者	Malihe ERFANI
文献子类	期刊论文
英文摘要	This paper focuses on the indicators of soil and litter health, disturbance, and landscape heterogeneity as a tool for prediction of ecosystem sustainability in the northern forests of Iran. The study area was divided into spatial homogenous sites using slope, aspect, and soil humidity classes. Then a range of sites along the disturbance gradient was selected for sampling. Chemical and physical indicators of soil and litter health were measured at random points within these sites. Structural equation modeling (SEM) was applied to link six constructs of landscape heterogeneity, three constructs of disturbance (harvest, livestock, and human accessibility), and soil and litter health. The results showed that with decreasing accessibility, the total N and organic matter content of soil increased and effective bulk density decreased. Harvesting activities increased soil organic matter. Therefore, it is concluded that disturbances through harvesting and accessibility inversely affect the soil health. Unexpectedly, it was found that the litter total C and C:N ratio improved with an increase in the harvest and accessibility disturbances, whereas litter bulk density decreased. Investigation of tree composition revealed that in the climax communities, which are normally affected more by harvesting activities, some species like Fagus orientalis Lipsky with low decomposition rate are dominant. The research results showed that changes in disturbance intensity are reflected in litter and soil indicators, whereas the SEM indicated that landscape heterogeneity has a moderator effect on the disturbance to both litter and soil paths.
语种	英语
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/19076]
专题	Journal of Mountain Science _Journal of Mountain Science-2017_Vol14 No.9
推荐引用方式 GB/T 7714	Malihe ERFANI,Abdolrassoul SALMANMAHINY,Afshin DANEHKAR,et al. Modeling of forest soil and litter health using disturbance and landscapeheterogeneity indicators in northern Iran[J]. Journal of Mountain Science,2017,14(9):1801-1813.
APA	Malihe ERFANI,Abdolrassoul SALMANMAHINY,Afshin DANEHKAR,&Vahid ETEMAD.(2017).Modeling of forest soil and litter health using disturbance and landscapeheterogeneity indicators in northern Iran.Journal of Mountain Science,14(9),1801-1813.
MLA	Malihe ERFANI,et al."Modeling of forest soil and litter health using disturbance and landscapeheterogeneity indicators in northern Iran".Journal of Mountain Science 14.9(2017):1801-1813.