石羊河流域干旱荒漠区人工梭梭林对土壤碳库的影响

尚雯; 李德禄; 魏林源; 马全林; 唐进年; 李银科; 张芝萍; 张卫星; 高松涛

doi:10.13870/j.cnki.stbcxb.2018.03.030

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石羊河流域干旱荒漠区人工梭梭林对土壤碳库的影响

更新时间：2025-03-12

- 石羊河流域干旱荒漠区人工梭梭林对土壤碳库的影响
- Effect of Artifical
- 水土保持学报 2018年32卷第3期页码：191-198
- 作者机构：
  
  1. 甘肃省治沙研究所, 荒漠化与风沙灾害防治国家重点实验室培育基地,兰州,730070
  2. 甘肃省治沙研究所, 甘肃临泽荒漠生态系统国家定位观测研究站, 甘肃临泽,734200
- 作者简介：
  
  [ "尚雯(1985-),女,博士,助理研究员,主要从事恢复生态学研究。E-mail:shenwem24@163.com" ]
- 基金信息：
  
  甘肃省治沙研究所荒漠化与风沙灾害防治国家重点实验室（培育基地）开放基金项目（GSDC201505）国家自然科学基金项目（31660232，31660237）甘肃省基础研究创新群体计划项目（1506RJIA155）
- DOI：10.13870/j.cnki.stbcxb.2018.03.030
  中图分类号：
- 纸质出版：2018
- 稿件说明：
移动端阅览
尚雯, 李德禄, 魏林源, 等. 石羊河流域干旱荒漠区人工梭梭林对土壤碳库的影响[J]. 水土保持学报, 2018,32(3):191-198.

SHANG Wen, LI Delu, WEI Linyuan, et al. Effect of Artifical[J]. 2018, 32(3): 191-198.
尚雯, 李德禄, 魏林源, 等. 石羊河流域干旱荒漠区人工梭梭林对土壤碳库的影响[J]. 水土保持学报, 2018,32(3):191-198. DOI： 10.13870/j.cnki.stbcxb.2018.03.030.

SHANG Wen, LI Delu, WEI Linyuan, et al. Effect of Artifical[J]. 2018, 32(3): 191-198. DOI： 10.13870/j.cnki.stbcxb.2018.03.030.

摘要

采用野外调查与室内分析相结合的方法，研究石羊河流域民勤干旱沙区种植人工梭梭林4，13，36年后的土壤有机碳（Soil organic carbon，SOC）、无机碳（Soil inorganic carbon，SIC）、全氮（Total nitrogen，TN）和总碳（soil total carbon，TC）含量及储量变化特征。结果表明：流动沙地种植梭梭后，0-50 cm层灌丛下和行间SOC和TN含量总体随造林年限增加而增加，5-50 cm层灌丛下SIC含量在13年梭梭林地最高。36，13年林地0-50 cm层灌丛下SOC和TN储量均高于行间，而13年灌丛下SIC储量低于行间，4年灌丛下5-50 cm层SOC、TN和SIC储量均低于行间。0-50 cm层土壤有机碳、无机碳、全氮储量增幅分别为102.44%，24.66%，54.55%，36年林地SOC和TN储量随土层加深先降低后增加，但4，13年和流动沙地SOC、SIC和TN储量均随土层加深而增加。土壤有机碳占总碳比例随造林年限增加而增加。相关分析结果表明，土壤颗粒组成、造林年限、土层深度等与土壤有机碳和全氮储量显著相关（P<0.01）。民勤干旱沙区造林提高了土壤碳库截存量，并且随林龄增长而增长。

Abstract

This study evaluated the effects of artificial Haloxylon ammodendron plantation on the concentrations and storages of soil organic carbon (SOC)

soil inorganic carbon (SIC)

total nitrogen (TN) and total carbon (TC) by field investigation and laboratory analysis in Minqin desert regions. And the ages of H. ammodendron plantations were 4

and 36 years old

respectively. Results showed that the concentrations of SOC and TN in soils of 0-50 cm depth under shrubs and between shrubs both increased with the increasing of plantation age after afforestation

whereas the highest concentrations of SIC in 5-50 cm depth soil under shrubs were observed in 13-year-old plantations. Generally

the storages of SOC and TN were both higher under shrubs than those of between shrubs in 13- and 36-year-old plantations. However

the storage of SIC was less under shrubs than that between shrubs in 13-year-old plantations. And in the soils of 5-50 cm depth

the storages of SOC

SIC and TN were less under shrubs than those of between shrubs in 4-year-old plantations. In the soils of 0-50 cm depth

the storages of SOC

SIC and TN increased by 102.44%

24.66% and 54.55%

respectively

after afforestation. Additionally

the storages of SOC and TN declined firstly and then increased with the increasing of soil depth in 36-year-old plantation

whereas the storages of SOC

SIC and TN all increased with the increasing of soil depth in shifting sandy land

4- and 13-year-old plantations. Overall

the proportion of SOC to TC increased with increasing of afforestation age. Pearson's correlation analysis indicated that storages of SOC and TN were both significantly correlated with soil particle size distribution

soil bulk density

plantation ages and soil depth. Therefore

we concluded that afforestation in arid desert region largely improved the accumulation of soil organic carbon and total carbon pools

and the carbon storage of soil increased with the growth of forest age.

关键词

Keywords

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