浙江四明山区花木种植经营对土壤质量的影响  

Soil Quality in Different Forest Plantations in Siming Mountainous Area of Zhejiang Province

作　　者：李东宾 何立平 苗国丽 吴家森[3] 崔广元[4] 李金朝[4] LI Dong-bin;HE Li-ping;MIAO Guo-li;WU Jia-sen;CUI Guang-yuan;LI Jin-zhao(Ningbo Forest Farm of Zhejiang,Ningbo 315440,China;Simingshan Township Government of Zhejiang,Ningbo 315440,China;Zhejiang A&F University,Hangzhou 311300,China;Ningbo City College of Vocational Technology,Ningbo 315400,China)

机构地区：[1]宁波市林场,浙江宁波315440 [2]四明山镇人民政府,浙江宁波315440 [3]浙江农林大学,浙江杭州311300 [4]宁波城市职业技术学院,浙江宁波315400

出　　处：《浙江林业科技》2022年第6期21-27,共7页Journal of Zhejiang Forestry Science and Technology

基　　金：宁波市科学技术局公益类科技计划项目(2019C10027)。

摘　　要：【目的】探讨浙江省宁波市四明山区花木种植经营对林地土壤质量的影响,为区域内林地资源的合理利用和生态修复提供科学依据。【方法】以四明山花木集中连片种植区域内的毛竹Phyllostachys edulis林、黄山松Pinus taiwanensis林、鹅掌楸Liriodendron chinensis林、新垦樱花(日本晚樱Cerasus lannesiana)林、樱花-红枫Acer palmatum‘Atropurpureum’林、生态修复林6种林分类型为研究对象,分析土壤主要理化性质与酶活性,并采用主成分分析法对不同林地利用类型的土壤质量进行综合评价。【结果】土壤容重、田间持水量、总孔隙度、pH值、阳离子交换量、全氮含量、全磷含量、全钾含量等在不同林地利用类型间没有显著性差异;花木种植后,林地土壤碱解氮和有效磷含量显著提高,而有机质和土壤酶活性下降显著(P<0.05);土壤质量综合指数大小排序为黄山松林>毛竹林>鹅掌楸林>新垦樱花林>生态修复林>樱花-红枫林。【结论】长期花木种植经营会导致林地土壤富营养化和综合质量退化,短期内的生态修复措施对花木林土壤质量提升效果不明显。In April, 2020, soil samples were collected from plantations of Phyllostachys edulis, Pinus taiwanensis, Liriodendron chinense, Cerasus lannesiana, Acer palmatum ‘Atropurpureum’ + C. lannesiana and ecological restoration in Siming mountainous area, Yuyao city of Zhejiang province. Determinations were conducted on soil physico-chemical properties and enzyme activities. Principal component analysis was used to evaluate soil quality of different plantations. The result demonstrated that there were no significant difference of soil bulk density, field capacity, total porosity, pH, cation exchange capacity, total nitrogen content, total phosphorus content, total potassium content among different plantations. Soil available nitrogen and phosphorus content increased obviously, but soil organic matter and enzyme activities decreased significantly in plantation of C. lannesiana and A. palmatum ‘Atropurpureum’ + C. lannesiana(P<0.05). Soil quality of six plantations was comprehensively evaluated and was ordered by P. taiwanensis >Ph. edulis>L. chinense > C. lannesiana >ecological restoration>A. palmatum ‘Atropurpureum’ + C. lannesiana.

关 键 词：花木种植经营 理化性质 酶活性 土壤质量 浙江省四明山 

分 类 号：S714.6[农业科学—林学]