文献类型：期刊文献

中文题名：中条山不同混交类型油松林土壤化学特性

英文题名：Soil Chemical Characteristics of Different Mixed Forest Types of Planted Pinus tabuliformis in Zhongtiao Mountain

作者：马淑敏[1] 法蕾[1] 吴迪[1] 吴莎[1] 辛学兵[1] 王海霞[1] 裴顺祥[1]

第一作者：马淑敏

机构：[1]中国林业科学研究院华北林业实验中心,北京九龙山暖温带森林国家长期科研基地,北京102300

年份：2025

卷号：34

期号：4

起止页码：718-725

中文期刊名：西北农业学报

外文期刊名：Acta Agriculturae Boreali-occidentalis Sinica

收录：;北大核心:【北大核心2023】；

基金：国家重点研发计划(2016YFD060020304)。

语种：中文

中文关键词：油松;中条山;混交林;土壤化学性质;土壤有效养分

外文关键词：Pinus tabuliformis;Zhongtiao Mountain;Mixed forest;Soil chemical properties;Soil available nutrient

分类号：S714

摘要：为解决油松人工纯林的林分结构单一引发的土壤地力衰退等一系列生态问题,以山西中条山十河林场油松-辽东栎针阔混交林(J1)、油松纯林(J2)、油松-华山松针叶混交林(J3)为研究对象,探讨3种不同混交类型人工林的土壤化学特性,为区域树种合理配置和森林的可持续经营提供科学依据。结果表明:在同一土层,J3土壤pH显著高于J1和J2;在0~10cm表层,J1土壤养分显著提高,有机质、全N、全P、水解N、速效P含量比J2分别高35.6%、42.65%、10.87%、38.95%、18.03%。随土层加深,3种林型土壤pH变化不显著;除速效P外,土壤养分显著降低,土壤养分呈明显的表聚效应。有效养分比率表示林分对土壤养分的活化能力。J1显著提高10~20cm土层N元素的有效养分比率,较J2、J3分别提高20.44%、24.03%;J1显著提高10~20cm和20~40cm土层P元素的活化能力。相关分析表明,土壤有机质、全N、全P、水解N间呈显著或极显著正相关,与pH呈显著或极显著负相关,因土壤有机质是N、P养分的重要来源,它们的变化往往具有一致性,土壤pH则通过影响微生物活性间接影响土壤养分。综上所述,油松-辽东栎混交林土壤化学性质明显优于油松纯林和油松-华山松混交林,因此,可以通过营造油松-辽东栎混交林模式,改善油松人工纯林的土壤质量,增强森林生态系统的稳定性。
To address a series of ecological issues such as soil fertility decline caused by the uniform stand structure of pure forests of Pinus tabuliformis,the mixed coniferous and broad-leaved forest of P.tabuliformis and Q.wutaishansea(J1),P.tabuliformis pure forest(J2),and coniferous mixed forest of P.tabuliformis and P.armandi(J3)were selected as research subjects at the Shihe Forest Farm in Zhongtiao Mountain,Shanxi province.The soil chemical characteristics of three different mixed types of planted forests were explored,which can provide a scientific basis for the rational allocation of tree species in the region and the sustainable management of forests.The results showed that,in the same soil layer,the soil pH of J3 was significantly higher than that of J1 and J2;in the 0-10 cm surface layer,the soil nutrients of J1 were significantly increased,with the contents of organic matter,total N,total P,hydrolyzed N,and available P being 35.6%,42.65%,10.87%,38.95%and 18.03%higher than J2,respectively.As the soil layers deepened,there was no significant change in soil pH among the three forest types;Except for available P,soil nutrients significantly decreased,exhibiting a clear surface aggregation effect.The effective nutrient ratio represents the forest’s ability to activate soil nutrients.J1 significantly increased the effective nutrient ratio of N element in the 10-20 cm soil layer,with an increase of 20.44%and 24.03%compared to J2 and J3,respectively.J1 significantly enhanced the activation ability of P element in the 10-20 cm and 20-40 cm soil layers.Correlation analysis showed significant or extremely significant positive correlations between soil organic matter,total N,total P,and hydrolyzed N,and significant or extremely significant negative correlations with pH.Soil organic matter is an important source of N and P nutrients,and their changes were often consistent.Soil pH indirectly affects soil nutrients by affecting microbial activity.In summary,the soil chemical properties of the mixed coniferous and broad-leaved forest of P.tabuliformis and Q.wutaishansea are significantly better than those of the pure P.tabuliformis forest,and coniferous mixed forest of P.tabuliformis and P.armandi.Therefore,we can improve the soil quality of pure forests of P.tabuliformis and enhance the stability of forest ecosystems by establishing a mixed forest model of P.tabuliformis and Q.wutaishansea.