物探与化探2024，Vol.48Issue(5)：1400-1408,9.DOI:10.11720/wtyht.2024.1570
济源市南山林场不同林分类型土壤主要肥力指标评价
Assessment of primary soil fertility indicators of different forest stand types in the Nanshan forest farm in Jiyuan City
摘要
Abstract
Soil fertility is a significant indicator that measures the ability of soil to provide various nutrients required by vegetation and reflects the crop producing power of soil.To ascertain the soil fertility of different forest stand types in the Nanshan forest farm of Jiyuan City,this study investigated the soil of four forest stand types:Platycladus orientalis,Robinia pseudoacacia,Quercus variabilis,and walnut trees.It analyzed the soil nutrients of the forest stand types by determining the pH,organic matter,total nutrients(TN,TP,TK),and available nutrients(AN,AP,AK)of soil at different depths(0～40 cm).Moreover,it assessed the comprehensive soil fer-tility using the improved Nemerow comprehensive index method.The results show that:(1)Except pH,the physicochemical factors of the soil of the forest stand types in the study area exhibited moderate variations,and the soil TP,TK,AP,AK,and pH manifested significant differences;(2)With an increase in soil depth,the soil in the study area showed increased pH and bulk density,decreased organic matter,TN,and available nutrients,and almost unchanged TP and TK;(3)The assessment of soil nutrient abundance indica-ted that the TN,TP,and available nutrients were relatively poor in the soil of the study area;(4)Based on a comprehensive assess-ment,the soil fertility of four forest stand types at different depths decreased in the order of Robinia pseudoacacia,Quercus variabilis,Platycladus orientalis,and walnut trees.Their soil fertility was generally at an average level,with low values observed at depths ran-ging from 20 to 40 cm.The comprehensive analysis indicates that TN,TP,and available nutrients are deficient in the study area.Therefore,applying appropriate organic fertilizers,nitrogen,and phosphorus is recommended for the study area.关键词
南山林场/林分类型/土壤养分/土壤肥力Key words
Nanshan forest farm/forest stand type/soil nutrient/soil fertility分类
资源环境引用本文复制引用
王勇峰,王剑,庞国涛,朱卫平,王克超,王晓恩,王祖振,刘杰..济源市南山林场不同林分类型土壤主要肥力指标评价[J].物探与化探,2024,48(5):1400-1408,9.基金项目
中国地质调查局项目"黄河流域中下游(河南段)水沙相互作用及生态环境承载力调查监测与评价"(DD20220885) （河南段）
