北京市苗圃土壤肥力调查与评价  

Investigation and evaluation of soil fertility in seedling bases in Beijing City

作　　者：秦坤坤 贾长城 王亚婷 QIN Kunkun;JIA Changcheng;WANG Yating(Beijing Geological Engineering Design Institute,Beijing 101500,China)

机构地区：[1]北京市地质工程设计研究院,北京101500

出　　处：《城市地质》2021年第4期439-446,共8页Urban Geology

摘　　要：为了对北京市苗圃基地土壤肥力进行调查,选取了407个代表性苗圃,研究和分析了其土壤的物理、化学性状,并对其进行综合肥力指数评价。结果表明,北京地区苗圃土壤以砂壤土为主,有机质含量显著偏低,碱解氮、有效磷总体偏低,速效钾偏高,容重偏高,通气孔隙度偏低,土壤偏碱性,土壤阳离子交换量平均为12.4 cmol·kg^(-1),保肥能力中等,土壤总体理化性状较差,对苗木生长有一定不利影响。Four hundred and seven representative seedling bases in Beijing City were taken as research objects with their physical and chemical characters of soil studied and analyzed to evaluate the comprehensive level of soil fertility in each seedling base.The results indicated that the soil in seedling bases in Beijing City is basically sandy loam with significantly lower organic matter content.Content of the alkaline hydrolysis nitrogen and available phosphorous is general low;the available potassium is high;the volume weigh is high;the aeration porosity is low;the average cation exchange capacity is 12.4 cmol·kg^(-1);the soil fertility retention capacity is medium.In general,the physical and chemical properties of the soil are poor.This can cause adverse effects on seedling growth.

关 键 词：北京市 苗圃 土壤肥力 评价 

分 类 号：S158[农业科学—土壤学]