土壤有效磷含量对滇中地区5种常见针叶林理化性质的影响  

Effects of Soil Available Phosphorus Content on Physicochemical Properties of 5 Common Conifers in Central Yunnan

作　　者：李国辉 王昆伦 许行健 白磊 马瑞杰 陈宏刚 李世友[1,4] LI Guo-hui;WANG Kun-lun;XUXing-jian;BAI Lei;MA Rui-jie;CHEN Hong-gang;LI Shi-you(Fire Research Institute,School of Civil Engineering,Southwest Forestry University,Kunming 650224,China;Forestry and Grassland Bureau of Jiangchuan county,Jiangchuan 652600,China;Emergency management Southern Aviation Forest Terminal,Kunming 650021,China;Key Laboratory of Forest Disaster Warning and Control in Yunnan Province,Kunming 650224,China)

机构地区：[1]西南林业大学消防研究所土木工程学院,云南昆明650224 [2]云南省江川县林业和草原局,云南江川652600 [3]应急管理部南方航空护林总站,云南昆明650021 [4]云南省森林灾害预警与控制重点实验室,云南昆明650224

出　　处：《山东农业大学学报（自然科学版）》2021年第4期545-551,共7页Journal of Shandong Agricultural University：Natural Science Edition

基　　金：国家自然科学基金项目(31260180)。

摘　　要：为研究土壤有效磷含量对针叶理化性质的影响,以滇中地区云南松(Pinus yunnanensis)、华山松(P.armandii)、地盘松(P.yunnanensis var.pygmaea)、云南油杉(Keteleeria evelyniana)和藏柏(Cupressus torulosa)5个常见针叶树种为研究对象,测定了针叶粗脂肪含量、灰分含量、热值以及土壤有效磷含量。统计随土壤有效磷含量增加,粗脂肪含量增加、灰分含量降低、热值增加样本批次所占比例。研究表明,随着土壤有效磷含量增加,藏柏粗脂肪含量增加、灰分含量降低、热值增加的样本批次所占比例分别为33.33%、55.56%、44.44%;华山松的分别为58.62%、65.52%、68.97%;地盘松的分别为63.64%、45.45%、68.18%;云南松的分别为38.46%、50.00%、57.69%;云南油杉的分别为47.06%、52.94%、41.18%;5个树种综合分析时分别为50.49%、54.37%、59.22%。土壤有效磷含量能够在一定程度上增加针叶的粗脂肪含量和热值,降低起灰分含量,尤其对华山松理化性质的影响较为明显。In order to study the effect of soil available phosphorus content on the physicochemical property of needles,We take the Pinus yunnanensis,P.armandii,P.yunnanensis var.pygmaea,Keteleeria evelyniana,Cupressus torulosa 5 common coniferous species as research objects.The crude fat content,ash content and calorific value of needles and soil available phosphorus content were determined,and the proportion of samples batches were counted which crude fat content increased,ash content decreased and calorific value increased with increase of soil available phosphorus content.The results showed that with the increase of soil available phosphorus content,the samples batchesofcrude fat content increases,ash content decreases and calorific value increases of Cupressus torulosa was 33.33%,55.56%and 44.44%,respectively;and it was 58.62%,65.52%and 68.97%for P.armandii;forP.yunnanensis var.pygmaeas was 63.64%,45.45%and 68.18%,respectively;forP.yunnanensiss was 38.46%,50.00%and 57.69%,respectively;and for Keteleeria evelynianas was 47.06%,52.94%,41.18%,respectively.When combined with 5 tree speciesit was 50.49%,54.37%and 59.22%,respectively.The soil available phosphorus content can increase the crude fat content and calorific value of needles to a certain extent,and reduce the ash content,especially has obvious influence on the physicochemical property of P.armandii.

关 键 词：土壤 有效磷 针叶林 

分 类 号：S762.3[农业科学—森林保护学]