Study on the Relationship Between the Release Characteristics of Organic Carbon from Litters and Soil Organic Carbon Pool in Tibetan Primitive Dark Coniferous Forest

DUAN Fei; FANG Jiangping; ZHOU Chenni

doi:10.13870/j.cnki.stbcxb.2020.03.050

您当前的位置：

首页 >

文章列表页 >

Study on the Relationship Between the Release Characteristics of Organic Carbon from Litters and Soil Organic Carbon Pool in Tibetan Primitive Dark Coniferous Forest

更新时间：2025-03-12

- Study on the Relationship Between the Release Characteristics of Organic Carbon from Litters and Soil Organic Carbon Pool in Tibetan Primitive Dark Coniferous Forest
- Vol. 34, Issue 3, Pages: 349-355(2020)
- 作者机构：
  
  1. 西藏农牧学院高原生态研究所,西藏,林芝,860000
  2. 西藏高原森林生态教育部重点实验室,西藏,林芝,860000
  3. 西藏自治区生态安全联合重点实验室,西藏,林芝,860000
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2020.03.050
  CLC： Q14
- Published：2020
- 稿件说明：
移动端阅览
DUAN Fei, FANG Jiangping, ZHOU Chenni. Study on the Relationship Between the Release Characteristics of Organic Carbon from Litters and Soil Organic Carbon Pool in Tibetan Primitive Dark Coniferous Forest[J]. 2020, 34(3): 349-355.
DOI：

DUAN Fei, FANG Jiangping, ZHOU Chenni. Study on the Relationship Between the Release Characteristics of Organic Carbon from Litters and Soil Organic Carbon Pool in Tibetan Primitive Dark Coniferous Forest[J]. 2020, 34(3): 349-355. DOI： 10.13870/j.cnki.stbcxb.2020.03.050.

摘要

结合野外凋落物分解袋法和室内分析试验，对藏东南2种典型暗针叶林—急尖长苞冷杉（Abies georgei var. Smithii）和林芝云杉（Picea likiangensis var. linzhiensis）凋落物的分解和有机碳释放特征进行研究，分析了2种亚高山暗针叶林凋落物有机碳释放速率与土壤有机碳及其组分之间的关系。结果表明：藏东南2种原始暗针叶林凋落物分解均呈现出雨季分解快（4—9月）、旱季分解慢（10—翌年3月），前期分解快（3—9月）、后期分解慢（10—翌年2月）的特征，且冷杉（PLLF）分解速率大于云杉（AGSF），Olson指数衰减模型能够较好地模拟2种暗针叶林凋落物的分解，冷杉（PLLF）和云杉（AGSF）凋落物半分解时间为2.11，2.52年；分解95%时间为8.96，10.84年；2种暗针叶林凋落物中有机碳含量表现出先上升后下降，再平稳降低的趋势，而2种暗针叶林凋落物中有机碳释放速率表现出先短暂富集再释放的模式；2种暗针叶林土壤总有机碳（TOC）及其活性组分（MBC、POC、LOC）含量都具有明显的表聚性（p<0.01），且同一土壤层次内TOC、MBC、POC、LOC互相之间均呈极显著正相关关系（p<0.01）；2种暗针叶林凋落物分解进程中有机碳的释放速率与表层土（0—10 cm）中TOC、MBC、POC、LOC含量、10—20 cm土层中的TOC、MBC含量以及20—40 cm土层中MBC含量之间呈现显著的正相关（p<0.05）。

Abstract

The decomposition and organic carbon release characteristics of litters of Abies georgei var. smithii and Picea likiangensis var. linzhiensis in two typical dark coniferous forests in southeastern Tibet were studied by combining the method of litter decomposition bag and laboratory analysis

the relationship between organic carbon release rate and soil organic carbon and its components in two subalpine dark coniferous forests was analyzed

the results showed that the decomposition of litters in the two original dark coniferous forests in southeastern Tibet showed the characteristics of fast decomposition in rainy season (April to September)

slow decomposition in dry season (October to march)

fast decomposition in early stage (march to September) and slow decomposition in late stage (October to February). The decomposition rate of fir (PLLF) was higher than that of spruce (AGSF). Olson exponential decay model could well model the decomposition of litter in two dark coniferous forests. The half-decomposition time of litter in fir (PLLF) and spruce (AGSF) were 2.11 and 2.52 years. The 95% of decomposition time were 8.96 and 10.84 years. The organic carbon content in the litters of the two dark coniferous forests showed a trend of first rising

then falling

and then steadily declining

while the release rate of organic carbon in the litters showed a pattern of first brief enrichment and then release. The contents of total organic carbon (TOC) and its active components (MBC

POC and LOC) in the soil of the two dark coniferous forests were obviously surficial (p<0.01)

and the contents of TOC

MBC

POC and LOC in the same soil layer were significantly positively correlated with each other (p<0.01). There was a significant positive correlation between the release rate of organic carbon in the decomposition process of litters of the two dark coniferous forests and the contents of TOC

MBC

POC and LOC in the topsoil (0-10 cm)

TOC and MBC in the soil layer of 10—20 cm and MBC in the soil layer of 20—40 cm (p<0.05).

关键词

Keywords

references

Davidson E A, Janssens I A. Temperature sensitivity of soil carbon decomposition and feedbacks to climate change[J].Nature,2006,440:165-173.

Randerson, James T. Climate science:Global warming and tropical carbon[J].Nature,2013,494:319-341.

Liu X F, Lin T C, Vadeboncoeur M A, et al. Root litter inputs exert greater influence over soil C than does aboveground litter in a subtropical natural forest[J].Plant Soil,2019,444:489-499.

Wei X R, Wang X, Ma T A, et al. Distribution and mineralization of organic carbon and nitrogen in forest soils of the southern Tibetan Plateau[J].Catena,2017,156:298-304.

Zheng H F, Chen Y M, Liu Y, et al. Litter quality drives thedifferentiation of microbial communities in the litter horizon across an alpine treeline ecotone in the eastern Tibetan Plateau[J].Scientific Reports,2018,8(1):e10029.

苟小林,吴福忠,杨万勤,等.季节性冻融格局变化对高山森林土壤DOC淋洗的影响[J].水土保持学报,2013,27(6):205-210.

Wu Q, Wu F Z, Tan B, et al. Carbon, Nitrogen and phosphorus stocks in soil organic layer as affected by forest gaps in the alpine forest of the Eastern Tibet Plateau[J].Russia Journal of Ecology,2015,46(3):246-251.

曹丽花,尹为玲,刘合满,等.西藏东南部色季拉山主要类型森林叶片和枯落物养分含量特征[J].生态学报,2019,39(11):4029-4038.

周晨霓,马和平.西藏色季拉山典型植被类型土壤活性有机碳分布特征[J].土壤学报,2013,50(6):179-183.

周晨霓,任德智,马和平,等.西藏色季拉山两种典型天然林分土壤活性有机碳组分与土壤呼吸特征研究[J].环境科学学报,2015,35(2):557-563.

方江平,巴青翁姆.西藏原始林芝云杉凋落物养分归还规律[J].自然资源学报,2013,28(7):1139-1145.

金龙,吴志祥,杨川,等,不同林龄橡胶凋落物叶分解特性与有机碳动态研究[J].热带作物学报, 2015,36(4):698-705.

丁新景,解国磊,敬如岩,等.黄河三角洲不同人工刺槐混交林凋落物分解特性[J].水土保持学报,2016,30(4):249-307.

Xu Z F, Zhao C Z, Yin H J, et al. Warming and forest management interactively affect the decomposition of subalpine forests on the eastern Tibetan Plateau:A four-year experiment[J].Geoderma,2015,240:223-228.

杨林,邓长春,陈亚梅,等.川西高山林线交错带凋落叶分解速率与初始质量的关系[J].应用生态学报, 2015,26(12):3602-3610.

Bai X J, Wang B R, An S S, et al. Response of forest species to C:N:P in the plant-litter-soil system and stoichiometric homeostasis of plant tissues during afforestation on the Loess Plateau, China[J].Catena,2019,183.

陈栎霖,刘语欣,范川,等.台湾桤木-扁穗牛鞭草符合模式下凋落物分解及其养分释放动态[J].南京林业大学学报(自然科学版),2015,39(1):49-54.

吴鹏,王襄平,张新平,等.东北地区森林凋落叶分解速率与气候、林型、林分光照的关系[J].生态学报,2016,36(8):2223-2232.

徐胜,付伟,平琴,等.气候变化对树木凋落物分解的影响研究进展[J].生态学杂志,2017,36(11):3266-3272.

王行,闫鹏飞,展鹏飞,等.植物质量、模拟增温及生境对凋落物分解的相对贡献[J].应用生态学报,2018,29(2):474-482.

Chávez-Vergara B, Merino A, González-Rodríguez A, et al. Direct and legacy effects of plant traits control litter decomposition in a deciduous oak forest in Mexico[J].Peer J, 2018, 6:e5095.

尚瑶,傅民杰,孙宇贺,等.温带阔叶林土壤有机碳及其颗粒组成空间分布特征[J].水土保持学报,2014,28(5):176-181,301.

殷有,刘源跃,井艳丽,等.辽东山区三种典型林型土壤有机碳及其组分含量[J].生态学杂志,2018,37(7):2100-2106.

Hu N, Ma Z M, Lan J C, et al. Leaf litter decomposition characters and impact on soil organic carbon/nitrogen in different vegetation restorations of karst rocky desertification:An example of the Zhongliangshan mountain in Chongqing, China[J].Carsologica Sinica,2016,35(5):539-549.

裴蓓,高国荣.凋落物分解对森林土壤碳库影响的研究进展[J].中国农学通报,2018,34(26):58-64.

王晓峰,汪思龙,张伟东.杉木凋落物对土壤有机碳分解及微生物生物量碳的影响[J].应用生态学报, 2013,24(9):2393-2398.

龙健,赵畅,张明江,等.不同坡向凋落物分解对土壤微生物群落的影响[J].生态学报,2019,39(8):2696-2704.

Views

926

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Effects of Maize Intercropping with Hairy Vetch and Rye on Soil Organic Carbon and Its Fractions

Research Progress on Dynamic Models of Soil Organic Carbon Driven by Water Erosion

Effects of Biological Soil Crusts on Soil Aggregate Distribution and Stability in Vegetation Concrete Slopes

Impact of Land-Use Changes on SOC Stocks in Northeast China from 1990 to 2020

Spatial Distribution and Stability Characteristics of Soil Organic Carbon Fractions in Arid Valleys of Southeastern Xizang

Related Author

LIAO Pan

YANG Lu

LUO Jiaqiao

NING Peng

YU Yang

BA Xiaobo

BAO Xuelian

WU Yingtao

Related Institution

College of Resources and Environment， China Agricultural University

Oil Crops Research Institute， Chinese Academy of Agricultural Sciences， Key Laboratory of Biology and Genetic Improvement of Oil Crops， Ministry of Agriculture and Rural Affairs

Institute of Applied Ecology， Chinese Academy of Sciences

University of Chinese Academy of Sciences

College of Resources and Environment， Yangtze University

⁰