Response and feedback of C mineralization to P availability driven by soil microorganisms

矿化(土壤科学) 土壤水分 化学 微生物 孵化 微生物种群生物学 土壤呼吸 营养物 环境化学 耕地 农学 动物科学 生态学 生物 细菌 生物化学 农业 有机化学 遗传学
作者
Zhongwang Jing,Ruirui Chen,Shiping Wei,Youzhi Feng,Jiabao Zhang,Xiangui Lin
出处
期刊:Soil Biology & Biochemistry [Elsevier]
卷期号:105: 111-120 被引量:98
标识
DOI:10.1016/j.soilbio.2016.11.014
摘要

Despite our current understanding of soil C and N interactions, less is known about the response and feedback of C mineralization to soil P availability driven by microorganisms. To better understand these interactions, soils with long-term P-sufficient NPK fertilization (available P: 13.4 mg kg−1) and P-deficient NK fertilization (available P: 0.96 mg kg−1) were incubated with and without glucose. CO2 emissions were monitored to characterize C mineralization during the incubation. The soil bacterial community structure, quantity and metabolic activity were evaluated using high-throughput sequencing, qPCR and microcalorimetric dynamics. Compared with P-sufficient soils, P-deficient soils had significantly lower basal respiration, but a significantly higher net mineralization of added glucose, probably due to higher energy cost of soil microorganisms. Glucose addition promoted microbial biomass and activity, particularly in P-deficient soils, and this improvement was maintained for at least 70 days. Shifts in bacterial community composition were induced by a predominance of several specific taxonomic groups, all of which were capable of solubilizing P in soils. P-deficiency decreases the retention of exogenous labile C into soil. Adding labile C to P-deficient soils may shift P from relatively unavailable soil-bound pools into microbial biomass pools through pool cycling. Our results indicated negative effects of P-deficiency on soil C retention, as well as positive effects of labile C on soil P availability in arable soils.
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
大幅提高文件上传限制,最高150M (2024-4-1)

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
独特鸵鸟发布了新的文献求助10
刚刚
刚刚
喵了个酥发布了新的文献求助10
1秒前
1秒前
123456qi完成签到,获得积分10
1秒前
yins完成签到,获得积分10
2秒前
xia发布了新的文献求助10
3秒前
3秒前
秦淮完成签到,获得积分20
4秒前
可爱的函函应助mof采纳,获得10
4秒前
yins发布了新的文献求助10
5秒前
慕青应助NOEYEDEER采纳,获得10
6秒前
Jasper应助喵了个酥采纳,获得10
6秒前
7秒前
小饼干完成签到,获得积分10
8秒前
体贴的映阳关注了科研通微信公众号
9秒前
小饼干发布了新的文献求助10
11秒前
12秒前
科研通AI2S应助proteinpurify采纳,获得10
12秒前
13秒前
俊逸的问薇完成签到 ,获得积分10
14秒前
NOEYEDEER发布了新的文献求助10
16秒前
mof完成签到,获得积分10
17秒前
evergarden完成签到 ,获得积分10
17秒前
variant完成签到,获得积分10
20秒前
ananan完成签到,获得积分10
20秒前
NOEYEDEER完成签到,获得积分20
22秒前
22秒前
大模型应助bvuiragybv采纳,获得10
22秒前
22秒前
23秒前
David发布了新的文献求助10
23秒前
情怀应助sandra采纳,获得10
23秒前
Lucas应助我今停杯一问之采纳,获得10
25秒前
25秒前
zm完成签到,获得积分10
27秒前
佐zzz发布了新的文献求助10
27秒前
28秒前
28秒前
瑾笙发布了新的文献求助10
29秒前
高分求助中
The Young builders of New china : the visit of the delegation of the WFDY to the Chinese People's Republic 1000
юрские динозавры восточного забайкалья 800
English Wealden Fossils 700
Chen Hansheng: China’s Last Romantic Revolutionary 500
宽禁带半导体紫外光电探测器 388
COSMETIC DERMATOLOGY & SKINCARE PRACTICE 388
Case Research: The Case Writing Process 300
热门求助领域 (近24小时)
化学 医学 生物 材料科学 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 基因 遗传学 催化作用 物理化学 免疫学 量子力学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 3142067
求助须知:如何正确求助?哪些是违规求助? 2793006
关于积分的说明 7805015
捐赠科研通 2449359
什么是DOI,文献DOI怎么找? 1303185
科研通“疑难数据库(出版商)”最低求助积分说明 626807
版权声明 601291