[1]张健,刘国彬,许明祥*,等.黄土丘陵区植被次生演替灌木初期的土壤养分特征黄土丘陵区植被次生演替灌木初期的土壤养分特征[J].西北林学院学报,2009,24(01):53-57.
　ZHANG Jian,LIU Guobin,XU Mingxiang,et al.Soil Nutrients Characteristics in Shrub Appearance Stage of Vegetation Secondary Succession in the Hillygullied Loess Region[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2009,24(01):53-57.
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黄土丘陵区植被次生演替灌木初期的土壤养分特征黄土丘陵区植被次生演替灌木初期的土壤养分特征()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第24卷
期数:
2009年01期
页码:
53-57
栏目:
出版日期:
2009-01-20

文章信息/Info

Title:
Soil Nutrients Characteristics in Shrub Appearance Stage of Vegetation Secondary Succession in the Hillygullied Loess Region
作者:
张健1; 2;  刘国彬1; 2;  许明祥1; 2*;  邢晓娈2;  温静2
(1.中国科学院 水利部 水土保持研究所，陕西 杨陵 712100;2.西北农林科技大学，陕西 杨陵 712100)
Author(s):
ZHANG Jian1; 2;  LIU Guobin1; 2;  XU Mingxiang1; 2;  XING Xiaoluan2; WEN Jing2
(1. Institute of Soil and Water Conservation , Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China; 2. Northwest A&F University, Yangling, Shaanxi 712100, China)
关键词:
黄土丘陵区; 次生演替; 灌木; 土壤养分
Keywords:
the hillygullied loess region;  secondary succession;  shrub;  soil nutrient
分类号:
S714.2
文献标志码:
A
摘要:
对黄土丘陵区植被次生演替灌木初期的土壤养分特征进行了研究。结果表明灌木初期土壤养分含量总体上表现出0～20 cm土层明显高于20～60 cm土层，而20～40 cm和40～60 cm间无显著差异。0～60 cm土壤深度内，土壤养分因子含量平均值变化范围分别为有机质4.66～9.83 g·kg-1，全氮0.33～0.61 g·kg-1，全磷0.49～0.52 g·kg-1，有效氮21.56～41.80 mg·kg-1，有效磷0.73～1.31 mg·kg-1，有效钾58.31～102.01 mg·kg-1。灌木初期的土壤养分条件略好于草本阶段，说明植被演替草本阶段对土壤的培肥作用为群落向灌丛演替阶段发展提供了一个较好的土壤养分环境。灌木初期不同，灌木树种间的土壤养分条件存在一定差异，表明不同灌木树种定居所需适宜的土壤养分条件也不同；灌木初期除土壤全磷外，其他各养分因子间均表现出极显著线性相关关系(P<0.01)。
Abstract:
This paper studied the characteristics of soil nutrients in shrub appearance stage of vegetation secondary succession in the hillygullied loess region. The results indicated that the content of soil nutrient factors overall exhibits 0～20 cm soil layer significantly higher than 20～60 cm soil layer, between lower layers 20～40 cm and 40～60 cm was no significant difference. In the 0～60 cm soil depth, the change range of average values of soil nutrient factors content were respectively organic matter4.66～9.83 g·kg-1, total N 0.33～0.61 g·kg-1, total P 0.49～0.52 g·kg-1, available N 21.56～41.80 mg·kg-1, available P 0.73～1.31 mg·kg-1, available K 58.31～102.01 mg·kg-1. Soil nutrient conditions in shrub appearance stage were generally slightly better than herb stage, indicating that soil fertility of herb stage of vegetation succession supplied a powerful soil nutrient condition for community succession to shrub stage. Soil nutrient conditions of different shrub trees had definite difference in the shrub appearance stage, which indicated that different shrub trees need different proper ecesis soil nutrient condition. Except total P, between other soil nutrient factors was very significant linear correlation (P<0.01).

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备注/Memo

备注/Memo:
收稿日期：20080519修回日期：20080530基金项目：国家自然科学基金重点项目(90502007，40301028); 国家重点基础研究发展计划项目 (2007CB407205); 中国科学院知识创新项目(KZCX2XB20503）。作者简介：张健，男，硕士研究生，主要从事植被恢复与环境效应方面研究。*通讯作者：许明祥，男，副研究员，主要从事土壤质量方面的研究。Email:xumx@nwsuaf.edu.cn
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