摘要
林木营养积累是地球生物化学循环中非常重要的部分,对维持生物与非生物环境间物质交换平衡有重要作用。基于实测,对烟台市森林生态系统积累营养物质功能进行评估,依托ArcGIS进行数据空间分析,以分析营养物质积累在树种间、县区间、地形间的数值和空间差异,结果表明,烟台市森林生态系统积累元素总实物量为11190.5 t·a^-1,积累N、P、K的物质量分别为6787.29、776.04、3627.16 t·a^-1;积累元素的总价值量为16794.83万元·a^-1,积累N、P、K的价值量分别为14253.36、543.23、1998.24万元·a^-1。单位面积积累元素实物量为21.48 kg·hm^-2·a^-1,单位面积价值量为322.2元·hm^-2·a^-1。单位面积森林资源积累营养元素的能力在树种间、县区间、不同地形间存在着不同程度的差异。
In this paper,the function of nutrient accumulation of forest ecosystem in Yantai city was studied,and the data spatial analysis was carried out based on ArcGIS.The results indicated that the total physical amount of accumulated elements in the forest ecosystem of Yantai was 11190.5 t·a^-1,of which the amounts of N,P,and K were 6787.29,776.04 t·a^-1,and 3627.16 t·a^-1,respectively.The total value of accumulated elements was 167.9483 million yuan/a,of which the values of N,P,and K were 142.5336,5.4323,and 19.9824 million yuan·a^-1,respectively.The physical amount of accumulated elements per unit area was 21.48 kg·hm^-2·a^-1,and the value per unit area was 322.2 yuan·hm^-2·a^-1.The ability of forest resources to accumulate nutrient elements per unit area differed among different tree species,counties and terrains.
作者
孙中元
官静
曹蓉芬
王正茂
曲宏辉
曹国玉
杨铭松
卫聪聪
司纯青
苏爱锋
SUN Zhong-yuan;GUAN Jing;CAO Rong-fen;WANG Zheng-mao;QU Hong-hui;CAO Guo-yu;YANG Ming-song;WEI Cong-cong;SI Chun-qing;SU Ai-feng(Natural Resources and Planning Bureau of Yantai,Yantai 264000,Shandong,China;Yantai Weizheng Real Estate Valuation Co.,Ltd,Yantai 264000,Shandong,China)
出处
《西北林学院学报》
CSCD
北大核心
2021年第1期156-162,共7页
Journal of Northwest Forestry University
基金
中国土地估价师与土地登记代理人协会年度课题(森林生态价值区片基准价体系构建)
烟台政采FX2017-0601项目:烟台市森林生态服务功能价值评估。
关键词
烟台市
森林生态系统
积累营养物质
功能评估
空间分布
Yantai city
forest ecosystem
nutrient accumulation
function evaluation
space distribution
