干旱区生态环境知识资源中心(Arid): Structural characteristics and topographic preferences of Polylepis rugulosa stands according to slope exposure in the most arid region of the southwestern Peruvian Andes

Arid

DOI	10.4067/S0717-92002023000200363
	Structural characteristics and topographic preferences of Polylepis rugulosa stands according to slope exposure in the most arid region of the southwestern Peruvian Andes
	Gutierrez-Flores, Ivon; Franco, Marianela Sanga; Quispe, Pedro Ticona
通讯作者	Gutierrez-Flores, I
来源期刊	BOSQUE
ISSN	0717-9200
出版年	2023
卷号	44 期号:2
英文摘要	Polylepis forests are among the least studied and most threatened in the neotropical realm, particularly P. rugulosa due to the high pressure it has historically suffered from high-altitude human Andean populations. Among the 45 species of the genus, there are many species-specific habitat preferences, as some species prefer certain levels of solar radiation, temperature and moisture, which are affected by topographic factors. We analyzed the structural differences and the effects of topographic factors in stands of P. rugulosa on east and west facing slopes and at two topographic positions in the most arid region of Peru. The evaluation was carried out in 58 plots of 20 x 30 m in three watersheds of the Tacna region, located between 3,800 and 4,200 m a.s.l. Density and basal area were found to be higher on the west facing slopes. Height and diameter changed between the two slope exposures, but were also affected by the topographic position. Density, basal area and cover increased with vertical flow distance (VFD) and overland flow distance (OFD) in both slope exposures, and were accentuated in the high topographic position. The effect of morphometric protection index (MPI) and slope changed with topographic position in both slope exposures. These results show a higher presence of P. rugulosa in west facing slopes and low dependence of P. rugulosa forests on water availability on both slope exposures, particularly in the high topographic positions.
英文关键词	east facing slopes west facing slopes topographic factors topographic position Peruvian Andes
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001059112600006
WOS关键词	TREE LINES ; ROSACEAE ; ALTITUDE ; CONSERVATION ; CORDILLERA ; WOODLANDS ; FOREST ; WORLDS ; REGENERATION ; DIVERSITY
WOS类目	Ecology ; Forestry
WOS研究方向	Environmental Sciences & Ecology ; Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395603
推荐引用方式 GB/T 7714	Gutierrez-Flores, Ivon,Franco, Marianela Sanga,Quispe, Pedro Ticona. Structural characteristics and topographic preferences of Polylepis rugulosa stands according to slope exposure in the most arid region of the southwestern Peruvian Andes[J],2023,44(2).
APA	Gutierrez-Flores, Ivon,Franco, Marianela Sanga,&Quispe, Pedro Ticona.(2023).Structural characteristics and topographic preferences of Polylepis rugulosa stands according to slope exposure in the most arid region of the southwestern Peruvian Andes.BOSQUE,44(2).
MLA	Gutierrez-Flores, Ivon,et al."Structural characteristics and topographic preferences of Polylepis rugulosa stands according to slope exposure in the most arid region of the southwestern Peruvian Andes".BOSQUE 44.2(2023).