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Comparative Analysis on Soil Basic Properties Between Southern andNorthern Slopes in Funiu Mountain, China

机译:伏牛山南北坡土壤基本性质的比较分析

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The spatial variation of soil physical and chemical properties in Funiu Mountain was studied to provide referencesfor identifying soil spatial variation mechanism in bordering land of China warm temperate zone and northern subtropicalregion. Using vertical gradient sampling and traditional statistics method, the soil samples at the altitude from1640 m to 1870 m were collected to compare physical and chemical properties between south and north slopes of the FuniuMountain. The results showed that soil pH, soil organic matter and soil total nitrogen were remarkably correlated withaltitude change, but soil electrical conductivity, soil available nitrogen, available phosphors, available potassium, and totalpotassium were not related to altitude. With the increase of altitude, soil pH and total nitrogen increased, but soil organicmatter decreased. Compared with the soil properties of northern slope in Funiu Mountain, soil acidity, electrical conductivity,and available nitrogen were higher in southern slope. Especially, the soil available nitrogen was much higher thanthe mean value observed in northern slope samples. The contents of soil organic matter, available phosphorus, availablepotassium, total nitrogen, and total potassium showed no striking difference on between southern and northern slopes. Inconclusion, both altitude and slope direction significantly influenced spatial variation of soil properties in Funiu Mountain.It added to the boundary effect of Qinling Mountains, and revealled the interaction mechanism of the environmentalelements such as land-climate-soil-ecosystem in Funiu Mountain.
机译:研究伏牛山土壤理化性质的空间变化规律,为确定中国暖温带与北亚热带地区交界处土壤空间变异机理提供参考。利用垂直梯度采样法和传统的统计方法,收集了1640 m至1870 m海拔高度的土壤样品,比较了伏牛山南坡和北坡的理化性质。结果表明,土壤pH,土壤有机质和总氮与海拔变化显着相关,而土壤电导率,土壤有效氮,有效磷,有效钾和总钾与海拔高度无关。随着海拔的升高,土壤pH和总氮增加,但有机质下降。与伏牛山北坡土壤性质相比,南坡土壤酸度,电导率和有效氮含量较高。特别是,土壤有效氮远远高于北坡样品的平均值。南坡和北坡土壤有机质,速效磷,速效钾,总氮,总钾的含量无显着差异。因此,伏牛山的海拔和坡度方向均显着影响土壤性质的空间变化,增加了秦岭的边界效应,揭示了伏牛山土地-气候-土壤-生态系统等环境元素的相互作用机制。

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