The dynamics of the carbon storage and fluxes in Scots pine (Pinus sylvestris) chronosequence

时序 苏格兰松 环境科学 初级生产 生物量(生态学) 土壤呼吸 生态系统 林业 下层林 垃圾箱 生态学 松属 植物 地理 生物 天蓬
作者
Veiko Uri,Mai Kukumägi,Jürgen Aosaar,Mats Varik,Hardo Becker,Kristiina Aun,Krista Lõhmus,Kaido Soosaar,Alar Astover,Marek Uri,Mikko Buht,Agnes Sepaste,Allar Padari
出处
期刊:Science of The Total Environment [Elsevier BV]
卷期号:817: 152973-152973 被引量:17
标识
DOI:10.1016/j.scitotenv.2022.152973
摘要

To evaluate the impact of stand age on the ecosystem's C budget, as well as the post-harvest recovery of the C storages and fluxes, a chronosequence of Scots pine stands from the clear-cut stage up to the age of 110 years was studied. An age-related trend of net primary production (NPP) demonstrated effective C accumulation in the young and middle-aged stands and their levelling out thereafter. The understorey vegetation contributed 8-46% to total NPP, being lower in the pole and middle-aged stands, but without a clear age related trend. Annual cumulative soil heterotrophic respiration (Rh) demonstrated stable values along the chronosequence, varying between 3.8 and 5.4 t C ha-1 yr-1. The Rh flux of 2.9 t C ha-1 yr-1 at the clear-cut site did not exceed the corresponding value for stands. The NEP along the chronosequence followed the dynamics of the annual biomass production of the trees, peaking at the middle-aged stage and decreasing in the older stands; the NPP of the trees was the main driver directing the dynamics of NEP. There was no significant correlation between Rh and dynamics of aboveground litter or fine root production, which can partly explain why no relationship was established between annual Rh and stand age. The total ecosystem C stocks followed the same trend as cumulative tree biomass, peaking in the older stands, however, the soil C stocks varied along the chronosequence irrespective of stand age. The post-harvest C compensation point was reached at the age of 7-years and C payback occurred at a stand age of 11-12 years. Stands acted as C accumulating ecosystems and average annual C accumulation was around 2.5 t C ha-1 yr-1, except for the youngest stand and the clear-cut area which acted as C sources. In the oldest stand C budget was almost balanced, with a modest annual accumulation of 0.12 t C ha-1 yr-1.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
12334完成签到,获得积分10
1秒前
2秒前
随机游动完成签到,获得积分10
7秒前
9秒前
qingsong完成签到,获得积分10
9秒前
mjt完成签到,获得积分10
11秒前
tony完成签到,获得积分10
12秒前
12秒前
万能图书馆应助vivia采纳,获得10
15秒前
mjt发布了新的文献求助10
15秒前
silent完成签到,获得积分10
18秒前
痕迹发布了新的文献求助10
18秒前
qingsong关注了科研通微信公众号
25秒前
Rez完成签到,获得积分10
27秒前
28秒前
29秒前
RUHUAN完成签到,获得积分10
30秒前
Akim应助朴实幼荷采纳,获得10
30秒前
金葡菌发布了新的文献求助10
32秒前
Xtay完成签到 ,获得积分10
34秒前
雪雪完成签到 ,获得积分10
35秒前
36秒前
JamesPei应助kkkkllll采纳,获得30
39秒前
金葡菌完成签到,获得积分20
42秒前
42秒前
没烦恼发布了新的文献求助10
43秒前
43秒前
tomorrow完成签到 ,获得积分10
45秒前
vivia发布了新的文献求助10
47秒前
玖瑶完成签到,获得积分20
48秒前
Jasper应助千秋梧采纳,获得10
50秒前
Ava应助段段采纳,获得10
50秒前
50秒前
vivia完成签到,获得积分10
53秒前
53秒前
太阳完成签到,获得积分10
54秒前
wyx完成签到 ,获得积分10
56秒前
东方千筹完成签到,获得积分20
57秒前
jiesenya完成签到,获得积分10
57秒前
太阳发布了新的文献求助10
59秒前
高分求助中
【此为提示信息,请勿应助】请按要求发布求助,避免被关 20000
Production Logging: Theoretical and Interpretive Elements 3000
CRC Handbook of Chemistry and Physics 104th edition 1000
Izeltabart tapatansine - AdisInsight 600
Introduction to Comparative Public Administration Administrative Systems and Reforms in Europe, Third Edition 3rd edition 500
Distinct Aggregation Behaviors and Rheological Responses of Two Terminally Functionalized Polyisoprenes with Different Quadruple Hydrogen Bonding Motifs 450
Individualized positive end-expiratory pressure in laparoscopic surgery: a randomized controlled trial 400
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 物理 生物化学 纳米技术 计算机科学 化学工程 内科学 复合材料 物理化学 电极 遗传学 量子力学 基因 冶金 催化作用
热门帖子
关注 科研通微信公众号,转发送积分 3761721
求助须知:如何正确求助?哪些是违规求助? 3305481
关于积分的说明 10134256
捐赠科研通 3019495
什么是DOI,文献DOI怎么找? 1658190
邀请新用户注册赠送积分活动 791974
科研通“疑难数据库(出版商)”最低求助积分说明 754751