期刊论文

Fang, X.

中文

应用生态学报

1001-9332

2016

27

3

705-715

10.13287/j.1001-9332.201603.013

国家林业公益性行业科研专项项目（201304317） 科技部国际合作项目（2013DFA32190） 教育部高等学校博士学科点专项科研基金项目（20124321110006）资助

本校为第一机构

在湖南省长沙县大山冲国有林场南酸枣落叶阔叶林建立1 hm~2固定样地,基于植物群落学调查数据和等距离网格布点取样的土壤养分测定数据,采用地统计学和GIS相结合的方法,研究土壤P含量的空间变异特征及其影响因子.结果表明:腐殖质层及0~ 10、10~ 20、 20~30 cm土层的全P、有效P含量的均为中等强度变异,同一土层有效P含量的变异程度较全P含量高,随着土壤深度增加,全P、有效P含量下降,变异程度增大.土壤全P、有效P含量具有较高的空间自相关性,主要受结构性因素影响.有效P含量的空间异质性较全P强,各土层全P、有效P含量空间自相关范围分别为92.80~ 168.90 m、79.43~ 106.20 m.同一土层全P含量分维数高...

In order to investigate spatial variations in soil phosphorus (P) concentration and the influencing factors, one permanent plot of 1 hm2 was established and stand structure was surveyed in Choerospondias axillaries deciduous broadleaved forest in Dashanchong Forest Park in Changsha County, Hunan Province, China. Soil samples were collected with equidistant grid point sampling method and soil P concentration and its spatial variation were analyzed by using geostatistics and geographical information system (GIS) techniques. The results showed tha...