林业与生态科学2025，Vol.40Issue(2)：189-196,8.DOI:10.13320/j.cnki.hjfor.2025.0022
不同植被恢复模式对燕山石质山地土壤养分含量的影响
Effects of different vegetation restoration models on soil nutrient content in stony mountain of Yanshan
摘要
Abstract
In order to understand the effects of different vegetation restoration modes on soil nutrients,this study took two plantation restoration modes,namely artificial pure forest and artificial mixed forest,in the stony mountains of northern Yanshan as the research objects,and set two groups of comparative experiments(pure forest experimental group and mixed forest experimental group).The areas with similar slope position,slope and site conditions without afforestation were selected in the two groups as the same plots to study the differ-ences of soil nutrients between different vegetation restoration modes after 16 years of affor-estation by combining field investigation and indoor analysis.The results show that:(1)The soil total nitrogen content of pure plantation and mixed plantation was significantly higher than that of control(P＜0.05).Compared with the control,Pinus tabuliformis for-est,Pinus sylvestris forest and mixed forest increased by 176.02％,121.05％and137.28％,respectively.(2)Compared with the control,the soil available nitrogen content of Pinus tabuliformis pure forest,Pinus sylvestris pure forest and mixed forest increased by 28.07％,28.29％and 30.37％respectively.(3)Compared with the control,total phos-phorus content in pure and mixed forests of Pinus tabuliformis increased by 24.24％and 14.10％,respectively,while pure forests of Pinus sylvestris decreased by 4.55％.(4)Com-pared with the control,the soil available phosphorus content of Pinus tabuliformis,Pinus sylvestris and mixed forest was increased by 49.92％,46.41％and 81.71％,respectively.(5)The soil organic matter content increased by 22.46％,7.73％and 44.80％in the resto-ration mode of Pinus tabuliformis,Pinus sylvestris and mixed forest,respectively.In con-clusion,both restoration modes can increase the contents of total nitrogen,available nitro-gen,available phosphorus and organic matter in soil,and the effects of mixed forest on the contents of available nitrogen,available phosphorus and organic matter in soil are better than those of pure forest of Pinus tabuliformis and Pinus sylvestris.关键词
植被恢复模式/土壤养分/退化石质山地Key words
vegetation restoration model/soil nutrient/degraded stony mountain分类
农业科技引用本文复制引用
曹宇朦,卢金平,许中旗,马娇娇,魏浩亮..不同植被恢复模式对燕山石质山地土壤养分含量的影响[J].林业与生态科学,2025,40(2):189-196,8.基金项目
河北省科技计划(17236801D) （17236801D）
国家科技支撑计划(2015BAD07B02). （2015BAD07B02）
