亲爱的研友该休息了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!身体可是革命的本钱,早点休息,好梦!

Are carbon-storing soils more sensitive to climate change? A laboratory evaluation for agricultural temperate soils

环境科学 土壤水分 土壤碳 矿化(土壤科学) 表土 温带气候 气候变化 含水量 总有机碳 碳循环 农学 环境化学 土壤科学 生态系统 化学 生态学 岩土工程 工程类 生物
作者
Tchodjowiè Israel Kpemoua,Sarah Leclerc,Pierre Barré,Sabine Houot,Valérie Pouteau,Cédric Plessis,Claire Chenu
出处
期刊:Soil Biology & Biochemistry [Elsevier BV]
卷期号:183: 109043-109043 被引量:3
标识
DOI:10.1016/j.soilbio.2023.109043
摘要

A range of agroecological practices allow to increase soil organic carbon (SOC) stocks, which makes a positive impact on climate change mitigation and soil health, but the permanence of this additional SOC storage can be questioned, in particular in a climate change context. Increased temperatures, accentuated evaporation of terrestrial water and increased atmosphere moisture content are anticipated, resulting in more frequent droughts and heavy precipitation events. Understanding the SOC dynamics and assessing the sensitivity of carbon mineralization to these climatic events is necessary to anticipate future carbon losses in terrestrial ecosystems. To this respect, it seems relevant to investigate carbon-storing soils as increased carbon mineralization induced by climate change may limit the carbon storing potential in agricultural soils. Thus, we evaluated the sensitivity of SOC mineralization to increased temperature, decreased soil moisture and drying-rewetting cycles using soils from long-term field experiments. We performed an incubation experiment on topsoil (0–30 cm) samples from temperate luvisols that had been under 20 years under conservation agriculture (CA), organic agriculture (ORG) and conventional agriculture (CON-LC) at the La Cage experiment, and under organic waste products (OWPs) applications in QualiAgro experiment, including biowaste composts (BIOW), residual municipal solid waste composts (MSW), farmyard manure (FYM) and conventional agriculture without organic inputs (CON-QA). Soil samples were incubated in the lab for 3 months under different temperature conditions (20, 28 and 35 °C) or under different moisture conditions (matric potential: pF1.5; pF 2.5 and pF 4.2) or under several dry (pF 4.2)-wet (pF 1.5) cycles (DWC). The results shown that, whatever the agricultural practices, soil moisture regime and temperature significantly affect the SOC mineralization. Overall, the DWC did not stimulate soil carbon mineralization relative to wet controls (pF1.5 and pF2.5). Whatever the soil moisture regime and temperature, specific carbon mineralization was similar between agricultural practices at La Cage, while at QualiAgro, specific carbon mineralization was lower in soils receiving organic waste products (OWPs) compared to the baseline soil. These results suggest a strong carbon stabilization by OWPs in soils as assessed by laboratory incubation experiments. Within each long-term experiment, we observed no significant difference between the carbon-storing soils (CA, ORG, MSW, FYM and BIOW) and their respective baseline soils (CON-LC and CON-QA) in the delta SOC mineralized whatever the soil moisture regime. The Q10 also indicated no significant difference between carbon-storing soils and their respective baseline soils. These results indicate that the SOC mineralization in carbon-storing soils had a similar sensitivity to the soil moisture regime and temperature as the baseline ones. Hence, the implementation of these agroecological practices appears beneficial for climate change mitigation, even in the context of extreme climatic events.
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
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
田様应助精明晓刚采纳,获得10
9秒前
35秒前
精明晓刚发布了新的文献求助10
41秒前
科研通AI2S应助科研通管家采纳,获得10
2分钟前
coolplex完成签到 ,获得积分10
2分钟前
wwe完成签到,获得积分10
2分钟前
貔貅完成签到 ,获得积分10
3分钟前
yindi1991完成签到 ,获得积分10
5分钟前
hgl完成签到,获得积分10
5分钟前
5分钟前
科研通AI2S应助科研通管家采纳,获得10
6分钟前
6分钟前
华仔应助精明晓刚采纳,获得10
6分钟前
6分钟前
7分钟前
精明晓刚发布了新的文献求助10
7分钟前
糖伯虎完成签到 ,获得积分10
7分钟前
在水一方应助科研通管家采纳,获得10
7分钟前
光合作用完成签到,获得积分10
8分钟前
9分钟前
精明晓刚发布了新的文献求助10
9分钟前
精明晓刚完成签到,获得积分10
9分钟前
9分钟前
搜集达人应助kangkang采纳,获得10
9分钟前
英姑应助科研通管家采纳,获得10
9分钟前
kangkang完成签到,获得积分20
10分钟前
10分钟前
刘紫媛发布了新的文献求助10
10分钟前
故意的冰淇淋完成签到 ,获得积分10
11分钟前
刘紫媛完成签到,获得积分20
11分钟前
Lucas应助Dave采纳,获得10
11分钟前
刘紫媛关注了科研通微信公众号
11分钟前
11分钟前
Akitten发布了新的文献求助10
11分钟前
草木完成签到 ,获得积分20
11分钟前
完美世界应助科研通管家采纳,获得10
12分钟前
领导范儿应助科研通管家采纳,获得10
12分钟前
Orange应助Boren采纳,获得10
12分钟前
12分钟前
Boren发布了新的文献求助10
12分钟前
高分求助中
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
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 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
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 3990351
求助须知:如何正确求助?哪些是违规求助? 3532158
关于积分的说明 11256513
捐赠科研通 3271046
什么是DOI,文献DOI怎么找? 1805207
邀请新用户注册赠送积分活动 882302
科研通“疑难数据库(出版商)”最低求助积分说明 809234