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当前位置: 首页 > 文章 > 甘肃亚高山不同海拔梯度云杉人工林土壤理化性质研究 甘肃农业大学学报 2021,56 (6) 111-118
Position: Home > Articles > Study on soil physical and chemical properties in the artificial forest of spruce plantation along altitudinal gradients in the subalpine region of Gansu Province Journal of Gansu Agricultural University 2021,56 (6) 111-118

甘肃亚高山不同海拔梯度云杉人工林土壤理化性质研究

作  者：
张珊;田晓娟;顾振东;安谈红;马瑞鹏;赵瑞桃
单  位：
甘肃兴隆山国家级自然保护区管护中心
关键词：
亚高山;云杉人工林;海拔;土壤理化性质
摘  要：
【目的】以白龙江上游海拔2 300～2 950 m云杉人工林土壤为研究对象,分析了不同海拔梯度土壤理化性质的分异规律及其与海拔的相关性,以期为甘肃亚高山云杉人工林的可持续发展提供科学依据.【方法】采用野外采样法和室内分析法,对海拔梯度上土壤有机C、全N、全P、全K、电导率、含水量等进行了测定分析.【结果】表层土壤pH值、电导率及含水量随海拔梯度的升高而降低,土壤容重随海拔升高呈先降低后升高的趋势;土壤有机C、全N、全P随海拔梯度的升高呈先升高后降低的趋势,土壤K变化幅度较小.土壤pH及容重在0～20 cm土层<20～40 cm土层,土壤电导率、含水量、有机C、全P在0～20 cm土层>20～40 cm土层,全N和全K无明显变化规律.由相关性分析可知,海拔与土壤有机C、全K、容重无显著相关性,与土壤全N呈极显著正相关,与土壤全P呈显著负相关,与土壤pH、电导率、含水量呈极显著负相关.【结论】海拔与土层对土壤理化性质均有一定的影响,不同海拔土壤电导率、含水量、有机C、全P表聚性明显,土壤全N、全P、pH、电导率、含水量、海拔相互之间有着显著相关性.
译  名：
Study on soil physical and chemical properties in the artificial forest of spruce plantation along altitudinal gradients in the subalpine region of Gansu Province
作  者：
ZHANG Shan;TIAN Xiaojuan;GU Zhendong;AN Tanhong;MA Ruipeng;ZHAO Ruitao;Gansu Xinglongshan National Nature Reserve Management Center;
关键词：
subalpine;;spruce plantation;;altitude;;soil physical and chemical properties
摘  要：
【Objective】 With the aim to provide reference for the sustain-able development of subalpine spruce plantations in Gansu Province, the study analyzed the physical and chemical properties of spruce-plantation soil and their correlation with altitude along altitudinal gradients from 2 300 m to 2 950 m in the upper reaches of Bailong River.【Method】 The soil indexes, i.e.,the organic C,total N,total P,total K,conductivity and water content, were determined through using the methods of field sampling and indoor analysis.【Result】 The pH value, conductivity and water content of the surface soil decreased with the altitude increasing, while soil bulk density decreased first and then increased with the altitude increasing.The contents of soil organic C,total N and total P increased first and then decreased with altitudinal gradients, and soil K content changed slightly.Both soil pH and bulk density in 0～20 cm soil layer were lower than was in 20～40 cm layer, while soil electrical conductivity, water content, organic C and total P in 0～20 cm layer were higher than were in 20～40 cm layer, and there was no obvious change in the contents of total N and total K.There existed no significant correlation between the altitude with either soil organic C,total K,or bulk density.The total N in soil was significantly positively correlated with the altitude, and the soil total P,soil pH,conductivity and water content were significantly negatively correlated with the altitude.【Conclusion】 Both the altitude and soil layer exerted effect on soil physical and chemical properties.The surface aggregation of soil conductivity, water content, organic C and total P was obvious at different altitudes.There was a significant correlation between soil total N,total P,pH,conductivity, water content and the altitude.

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