林木生长和土壤特性对侧柏人工林生态稳定性的影响  

Ecological Stability of Platycladus orientalis Plantations as Affected by Tree Growth and Soil Characteristics

作　　者：李元忠 马安宝 王克枚 葛忠强[2] 梁燕[2] 王清华[2] LI Yuanzhong;MA Anbao;WANG Kemei;GE Zhongqiang;LIANG Yan;WANG Qinhua(Licheng District State-owned Heiyu Forest Farm of Jinan City,Jinan Shandong 250103;Shandong Academy of Forestry,Jinan Shandong 250014;Zhucheng Forestry Development Center,Zhucheng Shandong 262299)

机构地区：[1]济南市历城区国有黑峪林场,山东济南250103 [2]山东省林业科学研究院,山东济南250014 [3]诸城市林业发展中心,山东诸城262299

出　　处：《山东林业科技》2022年第3期31-35,共5页Journal of Shandong Forestry Science and Technology

基　　金：山东省重点研发计划(2016GNC111008);山东省农业科技资金项目(林业科技创新)(2019LY010)

摘　　要：林木生长状况和林地土壤质量是森林生态系统的重要组成,可对其生态稳定性产生较大影响。以鲁中山地长期侧柏人工林为研究对象,通过野外调查和室内分析,研究了林木生长因子和土壤理化特性对侧柏林生态稳定性的影响。结果表明,树高、胸径和材积越大,侧柏人工林的生态稳定性也越强;林地土壤硬度的增加可显著降低林分生态稳定性;土层厚度、土壤容重和孔隙度对林分生态稳定性均没有明显影响作用;土壤阳离子交换量和有效钾含量的增加可显著增强侧柏林生态稳定性。土壤水溶性铜含量与侧柏林生态稳定性之间表现出显著性负相关,但水溶性中微量元素整体上未对侧柏林生态稳定性产生明显影响作用。Tree growth status and forest soil quality are important components of forest ecosystem,which can have a great impact on the stability of forest ecosystem.Taking the long-term Platycladus orientalis plantation in the mountainous area of central Shandong as the research object,through field investigation and indoor analysis,the effects of forest growth factors and soil physio-chemical characteristics on the ecological stability of P.orientalis were studied in this paper.The results showed that the greater values of tree height,DBH and volume,the stronger the ecological stability of P.orientalis plantation.The increase of soil hardness can significantly reduce the ecological stability of forest stand.Soil thickness,soil bulk density and porosity had no significant effects on the ecological stability.The increase of soil cation exchange capacity and available potassium content can significantly enhance the ecological stability of P.orientalis,but there was a significant negative correlation between the content of soil water-soluble Cu and the ecological stability of P.orientalis.However,water-soluble medium and trace elements did not have a significant impact on the ecological stability of P.orientalis as a whole.

关 键 词：侧柏人工林 生态稳定性 林木生长 土壤特性 

分 类 号：S791.38[农业科学—林木遗传育种]