天山南坡台兰河上游草地土壤理化性质与海拔的关系研究

发布时间：2018-04-13 19:59

本文选题：土壤理化性质 + 草地　；参考：《土壤通报》2017年03期

【摘要】：通过野外调查、土样采集及室内分析,对托木尔峰自然保护区台兰河上游河谷不同海拔草地表层土壤理化性质进行研究。结果表明:(1)研究区样地土壤含水量、饱和含水率、容重、非毛管孔隙度、毛管孔隙度、总孔隙度的范围分别为9.04%~44.7%,41.39%~114.9%,1.02~1.44 g cm~(-3),4.03%~7.45%,47.48%~58.53%,51.51%~65.85%,土壤含水量、饱和含水率、非毛管孔隙度、毛管孔隙度、总孔隙度随海拔上升而呈增加趋势;土壤容重则随海拔高度的增加而呈降低趋势。(2)草地表层土壤平均有机质含量、全N含量、全P含量、C/N、土壤p H的范围分别在3.64%~9.22%、0.23%~0.53%、0.13%~0.15%、9.00~14.10、7.91~8.20之间有机质含量、全N含量的最大值分别约为最小值的2.5倍和2.3倍;有机质含量、全N含量、全P含量、C/N的大小均随海拔高度增加而趋于增大;土壤p H则随海拔上升不断降低。台兰河上游河谷草地表层土壤理化性质受海拔高度这一重要环境因子的影响深远且规律性显著。
[Abstract]:Through field investigation, soil sampling and laboratory analysis, the Tuomuer Nature Reserve in Tailan River upstream river valley in different altitude grassland soil physicochemical properties were studied. The results showed that: (1) the study area of soil water content, saturated water content, bulk density, non capillary porosity, capillary porosity, total porosity range respectively 9.04%~44.7%, 41.39%~114.9%, 1.02~1.44 g cm~ (-3), 4.03%~7.45%, 47.48%~58.53%, 51.51%~65.85%, soil water content, saturated water content, non capillary porosity, capillary porosity, total porosity increased with altitude was increased; soil bulk density increased with the altitude increase and decrease. (2) the grass surface the average soil organic matter content, total N content, P content, C/N, P, H respectively in the range of soil 3.64%~9.22%, 0.23%~0.53%, 0.13%~0.15%, 9.00~14.10,7.91~8.20 between the content of organic matter, total N content of the maximum value respectively. The minimum value is about 2.5 times and 2.3 times; the content of organic matter, total N content, total P content, the size of C/N increased with the increasing of the altitude increase; soil P H is continuously decreasing. With the rise in elevation by the elevation of Tailan nature of this important environmental factors of the surface soil Grass River the upper valley of the profound and obvious regularity.

【作者单位】：新疆师范大学地理科学与旅游学院;
【基金】：国家自然科学基金项目(41461107) 新疆师范大学地理学博士点支撑学科开放课题基金项目(XJNU-DL-201608)资助
【分类号】：S812.2

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