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应用生态学报 ›› 2018, Vol. 29 ›› Issue (1): 25-32.doi: 10.13287/j.1001-9332.201801.009

• 目次 • 上一篇    下一篇

豫西黄土丘陵区不同林龄栎类和侧柏人工林碳、氮储量

王艳芳1,2, 刘领1, 李志超3, 石晓峰4, 杨小艳4, 上官周平2*   

  1. 1河南科技大学农学院, 河南洛阳 471023;
    2西北农林科技大学黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西杨凌 712100;
    3洛阳市林业调查规划管理站, 河南洛阳 471000;
    4偃师市林业局, 河南偃师 471900
  • 收稿日期:2017-06-14 出版日期:2018-01-18 发布日期:2018-01-18
  • 通讯作者: * E-mail: shangguan@ms.iswc.ac.cn
  • 作者简介:王艳芳, 女, 1977年生, 博士研究生. 主要从事森林生态系统碳汇研究. E-mail: wyfll1977@126.com
  • 基金资助:
    本文由国家自然科学基金项目(31700367)、国家重点研发计划项目(2016YFC0501605)、国家科技基础性工作专项(2014FY210100)和河南科技大学学科提升振兴A计划项目(13660001)资助

Storage of carbon and nitrogen in Quercus and Platycladus orientalis plantations at different ages in the hilly area of western Henan Province, China.

WANG Yan-fang1,2, LIU Ling1, LI Zhi-chao3, SHI Xiao-feng4, YANG Xiao-yan4, SHANGGUAN Zhou-ping2*   

  1. 1College of Agriculture, Henan University of Science and Technology, Luoyang 471023, Henan, China;
    2State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi, China;
    3Luoyang Forest Inventory and Planning Station, Luoyang 471000, Henan, China;
    4Yanshi Forestry Bureau, Yanshi 471900, Henan, China
  • Received:2017-06-14 Online:2018-01-18 Published:2018-01-18
  • Contact: * E-mail: shangguan@ms.iswc.ac.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (31700367), the National Key Research and Development Program of China (2016YFC0501605), the National Sci-Tech Basic Program of China (2014FY210100) and the HAUST Discipline Improvement and Promotion Plan A (13660001).

摘要: 利用空间代替时间样地调查法,分析了豫西黄土丘陵区栎类和侧柏人工林生态系统碳、氮储量的分布格局,以及不同土层碳储量和氮储量随林龄的动态变化.结果表明: 随着树龄的增加,两类人工林乔木层和枯落物层碳储量均增加,土壤碳储量和氮储量主要在表层(0~20 cm)汇聚,且各土层碳储量和氮储量随着林龄增加表现为减少-增加-减少的趋势.各林龄栎类人工林土壤表层碳、氮储量分别为20.31~50.07和1.68~2.12 t·hm-2;不同林龄侧柏人工林土壤表层碳、氮储量分别为23.99~48.76和1.59~2.34 t·hm-2;各林龄栎类和侧柏人工林生态系统的碳储量分别为52.04~275.82和62.18~279.81 t·hm-2;侧柏人工林碳汇能力略高于栎类人工林.土壤C/N随着造林年限的增加呈增加趋势.

Abstract: In the study, the method of space substituting time was used to investigate the distribution pattern of carbon and nitrogen storages in Quercus and Platycladus orientalis plantation ecosystems at different ages in hilly area of western Henan Province, China. We also analyzed the dynamic changes of soil carbon and nitrogen storages in different soil layers in the two plantation ecosystems. The results showed that the carbon storage in the arbor and litter layers increased with the increasing tree age. The storage of carbon and nitrogen in soil aggregated mainly in the surface layer and showed a trend of decrease-increase-decrease with the increasing tree age in all soil layers. The ranges of carbon and nitrogen storage in the surface soil were 20.31-50.07 and 1.68-2.12 t·hm-2 in Quercus plantation, and 23.99-48.76 and 1.59-2.34 t·hm-2 in P. orientalis plantation, respectively. Carbon storage ranges in Quercus and P. orientalis plantation ecosystems at different ages were 52.04-275.82 and 62.18-279.81 t·hm-2, respectively. The carbon sequestration capacity in P. orientalis plantation was a little higher than that in Quercus plantation. Soil C/N increased with the increase of afforestation age.