期刊论文

Stoichiometric Characterization of Soil C,N,and P of Different Age-group Chinese Fir Plantations

中文

土壤

0253-9829

2019

51

2

290-296

10.13758/j.cnki.tr.2019.02.012

湖南省自然科学基金面上项目(2018JJ2673) 林学重点学科开放基金项目(2016ZD06) 多功能森林经营湖南金洞林场样板基地作业法研究及示范项目(1692017-6) 湖南省教育厅项目(16C1668) 湖南省大学生研究性和创新性实验计划项目(湘教通〔2016〕283号) 中南林业科技大学***项目(2016YJ075)资助。

本校为第一机构

为了阐明不同发育阶段杉木人工林土壤的生态化学计量特征,在湖南省金洞林场选择立地因子基本一致的杉木幼龄林、中龄林、近熟林、成熟林、过熟林分别设置3块20m×30m样地,在每个样地利用S形5点取样法分层(0~15、15~30、 30~45、 45~ 60cm)采取土壤样品,用于测定土壤有机碳、全氮、全磷,并计算化学计量比。结果显示:5个龄组杉木林0~ 60cm 土壤有机碳、全氮、全磷的含量分别为11.02~ 14.74、1.65~ 1.84、0.26~ 0.35g/kg。土壤有机碳和全氮的含量随着杉木年龄的增长表现出了先减少后增加再减少的趋势,而土壤全磷的含量则表现为先减少后增加的趋势。土壤有机碳和全氮的含量都表现为随土层加深而下降...

To clarify soil stoichiometric characteristics of different age-group Chinese fir plantations, young, half mature, near mature, mature and over mature Chinese fir plantations with similar site condition were selected in Jindong forest farm of Hunan Province. Three sample plots of 20m×30m were set up in each of these different age-group plantations and soil samples were collected from 0-15, 15-30, 30-45 and 45-60cm depths, respectively, with S-shaped sampling method (5 sampling points) in each plot. The contents of soil organic carbon (SOC), to...