Soil inorganic carbon stock in the Tibetan alpine grasslands

土壤碳 环境科学 库存(枪支) 堆积密度 土壤科学 空间分布 草原 草原 自然地理学 大气科学 水文学(农业) 地质学 土壤水分 农学 生态学 地理 遥感 生物 岩土工程 考古
作者
Yuanhe Yang,Jingyun Fang,Chengjun Ji,Wenhong Ma,Shenshen Su,Zhiyao Tang
出处
期刊:Global Biogeochemical Cycles [Wiley]
卷期号:24 (4) 被引量:87
标识
DOI:10.1029/2010gb003804
摘要

As the largest carbon pool in the terrestrial biosphere, soil carbon stock consists of organic and inorganic components. However, previous studies dominantly concentrated on soil organic carbon (SOC) stock, and little is known about the magnitude and patterns of soil inorganic carbon (SIC). In this study, we evaluated the magnitude of SIC stock in the Tibetan alpine grasslands using data from 405 profiles surveyed from 135 sites across the plateau during 2001–2004. Kriging interpolation was conducted to interpolate site‐level observations to the regional level. We also compared spatial and vertical distributions of SIC stock with the corresponding patterns of SOC stock in the Tibetan alpine grasslands. Our results showed that SIC stock in the top 1 meter in the Tibetan alpine grasslands was approximately 15.2 Pg C (1 Pg = 10 15 g), with an average density (amount per area) of 13.46 kg C m −2 . SIC density exhibited different spatial and vertical distributions in comparison with SOC density. Spatially, SIC density in the alpine steppe was larger than that in the alpine meadow, in contrast to SOC distribution. Vertically, SIC stock in the upper 30 and 50 cm accounted for 47.6% and 71.6%, respectively, of that in the upper 1 meter, with lower proportions than that of SOC stock in the same interval (67.8% and 83.3%). In total, SIC stock in the Tibetan alpine grasslands was about 2.1 times the corresponding SOC stock, accounting for 28.5% of the total SIC stock in China. These results highlight that SIC stock in the Tibetan grasslands could make a significant contribution to China's terrestrial carbon balance.

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

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
桐桐应助YujieWu采纳,获得10
3秒前
Axel完成签到,获得积分10
4秒前
乐乐应助小蔡采纳,获得10
4秒前
xiaoranzi6661发布了新的文献求助30
5秒前
自由山槐完成签到,获得积分10
5秒前
5秒前
Gerg发布了新的文献求助10
6秒前
淡定的鸭子完成签到,获得积分10
6秒前
6秒前
11完成签到,获得积分10
8秒前
8秒前
8秒前
9秒前
9秒前
11秒前
111发布了新的文献求助10
12秒前
12秒前
14秒前
小蔡发布了新的文献求助10
16秒前
17秒前
18秒前
orixero应助chiweiyoung采纳,获得10
19秒前
可爱的函函应助吃猫的鱼采纳,获得10
19秒前
大象放冰箱完成签到,获得积分10
19秒前
20秒前
Hello应助111采纳,获得10
20秒前
20秒前
20秒前
愉快的真应助Dr.Yang采纳,获得30
21秒前
852应助Antoine采纳,获得10
21秒前
久伴久爱完成签到 ,获得积分10
22秒前
tjzbw发布了新的文献求助10
24秒前
123发布了新的文献求助10
25秒前
111完成签到,获得积分10
26秒前
26秒前
27秒前
罗大大完成签到 ,获得积分10
29秒前
HotKid应助害怕采纳,获得10
30秒前
30秒前
33秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
徐淮辽南地区新元古代叠层石及生物地层 2000
A new approach to the extrapolation of accelerated life test data 1000
Robot-supported joining of reinforcement textiles with one-sided sewing heads 400
北师大毕业论文 基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 390
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 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 4023842
求助须知:如何正确求助?哪些是违规求助? 3563836
关于积分的说明 11343764
捐赠科研通 3295164
什么是DOI,文献DOI怎么找? 1814969
邀请新用户注册赠送积分活动 889615
科研通“疑难数据库(出版商)”最低求助积分说明 813048