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[1]刘欣,彭道黎,邱新彩.华北落叶松不同林型土壤理化性质差异[J].应用与环境生物学报,2018,24(04):735-743.[doi:10.19675/j.cnki.1006-687x.2018.01020]
 LIU Xin,PENG Daoli** & QIU Xincai.Differences in soil physicochemical properties between different forest types of Larix principis-rupprechtii[J].Chinese Journal of Applied & Environmental Biology,2018,24(04):735-743.[doi:10.19675/j.cnki.1006-687x.2018.01020]
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华北落叶松不同林型土壤理化性质差异()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
24卷
期数:
2018年04期
页码:
735-743
栏目:
研究论文
出版日期:
2018-08-20

文章信息/Info

Title:
Differences in soil physicochemical properties between different forest types of Larix principis-rupprechtii
作者:
刘欣彭道黎邱新彩
北京林业大学林学院 北京 100083
Author(s):
LIU Xin PENG Daoli** & QIU Xincai
College of Forestry, Beijing Forestry University, Beijing 100083, China
关键词:
华北落叶松混交林土壤理化性质凋落物
Keywords:
Larix principis-rupprechtii mixed forest soil physicochemical property litter
分类号:
S714.2
DOI:
10.19675/j.cnki.1006-687x.2018.01020
摘要:
在河北塞罕坝机械林场的华北落叶松3个不同类型人工林设立典型样地,研究落叶松白桦混交林、落叶松樟子松混交林、落叶松纯林的土壤理化性质和林地凋落物现存量等17项指标,分析这些指标在0-50 cm共5个土层间的差异情况. 结果表明:(1)在土壤剖面上随土层加深,3种林型土壤容重均逐渐增加;土壤水分、有机质、全氮、全磷、碱解氮、有效磷、速效钾、电导率呈减小的趋势;孔隙度和全钾变化不显著. (2)在同一土层,土壤容重和pH总体表现为落叶松白桦混交林最低,落叶松纯林最高;林地凋落物现存量、土壤水分、有机质、氮、磷、钾、电导率均表现为落叶松白桦混交林最高,落叶松纯林和落叶松樟子松混交林无显著差异. (3)相关性分析表明容重与土壤水分、孔隙度、全钾、速效钾呈极显著负相关,与非毛管孔隙度、有机质、有效磷呈显著负相关;有机质、氮、磷、钾元素之间均有显著正相关关系,全氮、全磷、全钾与凋落物未分解层现存量都呈显著正相关. 因此认为在3种林型中,落叶松白桦针阔混交林土壤理化性质明显优于落叶松樟子松混交林、落叶松纯林;结果可为合理利用森林土壤、科学营造华北落叶松人工林提供依据. (图3 表6 参48)
Abstract:
Soil physicochemical properties can reflect the soil quality. The purpose of this study was to determine the differences in soil physicochemical properties between three forest types of Larix principis-rupprechtii at the Saihanba Machinery Forest Farm in Hebei Province. Soil samples were collected from depths of 0–50 cm in the three forests to analyze physicochemical properties by measuring 17 indicators. Results were as follows: (1) Soil moisture, organic matter, total nitrogen, total phosphorus, available nitrogen, available phosphorus, available potassium, and conductivity presented a decreasing trend with an increase in soil depth whereas the opposite was true for soil bulk density among the three forest types. Porosity and total potassium did not change significantly. (2) In the same soil layer, bulk density and pH were lowest in L. principis-rupprechtii and Betula platyphylla mixed forest, whereas they were highest in pure L. principis-rupprechtii. Litter stocking, soil moisture, organic matter, nitrogen, phosphorus, potassium, and conductivity in L. principis-rupprechtii and B. platyphylla mixed forest were higher than those of the other forest types. (3) Correlation analysis showed that bulk density was negatively correlated with non-capillary porosity, organic matter, and available phosphorus, whereas it was significantly correlated with soil moisture, porosity, potassium, and available potassium. In contrast, there was a significant positive correlation between organic matter, nitrogen, phosphorus, and potassium. The non-decomposed layer was positively correlated with nitrogen, phosphorus, and potassium. The results indicated that the soil physicochemical properties of L. principis-rupprechtii and B. platyphylla mixed forest were better than those of L. principis-rupprechtii and Scotch pine mixed forest and pure L. principis-rupprechtii forest. This research provides a foundation for afforestation of L. principis-rupprechtii and rational utilization of land.

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更新日期/Last Update: 2018-08-25