水土保持学报2018，Vol.32Issue(2)：173-178,6.DOI:10.13870/j.cnki.stbcxb.2018.02.025
乔灌草治理年限对红壤区土壤养分的影响
Effects of Management Years of Trees, Shrubs and Grasses on Soil Nutrients in Red Soil Region
摘要
Abstract
In degraded red soil area,taking the Pinus massoniana forest mixed by shrub and grass measures with 4 different management years as the object of study,and the unmanaged severely degraded pine as control,the effects of management years on soil nutrients were studied.The results showed that:(1) The range of soil organic matter,total nitrogen and total phosphorus contents were 0.81～28.10 g/kg,0.18～ 1.15 g/kg and 0.03～0.18 g/kg,respectively,and all contents increased with the increase of management duration,and first fast and then slow in increasing rates.Total potassium contents ranged in 0.92～4.65 g/kg,with the highest in the 40-60 cm soil layer after managed for 13 years,the increasing rate was first slow then fast.(2) There was a correlation between soil nutrient content and management years:management years gave a significant correlation with soil organic matter and total N contents(P＜0.05),and a highly significant correlation with total P(P＜0.01).But no correlation was observed between soil total K content and management years.These findings suggested that the soil nutrient contents of Pinus massoniana forest soil was related to the management years,and provided scientific basis for ecological management and restoration.关键词
治理年限/马尾松林地/土壤养分/南方红壤区Key words
management years/Pinus massoniana forest land/soil nutrition/red soil region in Southern China分类
农业科技引用本文复制引用
毛兰花,查轩,黄少燕,刘根华,白永会,张婧,姚冲..乔灌草治理年限对红壤区土壤养分的影响[J].水土保持学报,2018,32(2):173-178,6.基金项目
国家重点研发计划项目“南方红壤低山丘陵区水土流失综合治理”(2017YFC05054) （2017YFC05054）
国家科技支撑计划项目“强度侵蚀区退化生态系统修复关键技术的研发与集成”(2014BAD15B02) （2014BAD15B02）
