Comparative study of methane emission in the reclamation-restored wetlands and natural marshes in the Hangzhou Bay coastal wetland

湿地 芦苇 环境科学 土地复垦 互花米草 甲烷 沼泽 海湾 水文学(农业) 盐沼 温室气体 大米草属 石首鱼 生态学 海洋学 地质学 生物 岩土工程
作者
Jing Xiong,Xuancai Sheng,Meng Wang,Ming Wu,Xuexin Shao
出处
期刊:Ecological Engineering [Elsevier]
卷期号:175: 106473-106473 被引量:15
标识
DOI:10.1016/j.ecoleng.2021.106473
摘要

Wetlands play a crucial role in reducing global warming potential in response to global climate change. Large-scale reclamation and artificial restoration of coastal wetlands significantly affect the greenhouse gas methane emissions of coastal ecosystems. To comprehensively understand the difference in methane emissions between natural and reclamation-restored wetlands, the natural bare mudflat (BM – bare mudflat) in Hangzhou Bay, three types of natural vegetation wetlands (SM - Scirpus mariqueter, PA – Phragmites australis, and SA – Spartina alterniflora), and four types of reclamation-restored P. australis wetlands with different water levels (RW0 – Water level at 0 cm; RW10 – Water level at 10 cm; RW20 – Water level at 20 cm; RW30 – Water level at 30 cm) were selected to analyze the relationship between methane emissions and environmental factors through field observations and laboratory experiments. The results showed that the methane emission flux and methane production potential (MPP) of reclamation-restored wetlands were notably higher than those of natural wetlands, and the monthly dynamics in the different types of wetlands were consistent with temperature. The methane emission flux increased rapidly from April to July (summer), and reached a monotonic peak in July. Among the natural wetlands, the methane emission flux and MPP of SA were significantly higher, which was mainly driven by the soil organic carbon (SOC). In the reclamation-restored wetlands, the methane emission fluxes did not significantly differ between RW10, RW20, and RW30, but were remarkably higher than those of RW0 and natural wetlands, which was mainly driven by the water level and salinity. The differences in the MPP of the different soil layers were mainly affected by the SOC and water levels. Especially in the 0–5 cm surface soil layer of the reclamation-restored wetlands, the MPP was significantly higher, which was mainly driven by the SOC. Therefore, during the later stages of artificial reclamation-restored wetlands, appropriate water level and salinity management and other effective engineering measures should be explored to manage methane emissions during wetland restoration.
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
小蘑菇应助JJ采纳,获得10
刚刚
菜鸡5号发布了新的文献求助10
刚刚
刚刚
1秒前
WJY发布了新的文献求助10
1秒前
zz55完成签到 ,获得积分10
2秒前
2秒前
raycee发布了新的文献求助10
2秒前
张三发布了新的文献求助10
5秒前
顾矜应助坦率曼寒采纳,获得10
6秒前
sunwb完成签到,获得积分20
6秒前
7秒前
8秒前
9秒前
9秒前
阿信必发JACS应助王旭智采纳,获得20
10秒前
10秒前
cy完成签到,获得积分10
11秒前
Sun发布了新的文献求助10
12秒前
斯文白梦发布了新的文献求助10
13秒前
14秒前
DddZS发布了新的文献求助10
16秒前
17秒前
欣喜惜珊完成签到,获得积分20
17秒前
17秒前
慕青应助WJY采纳,获得10
17秒前
pp发布了新的文献求助10
19秒前
20秒前
Singularity应助王旭智采纳,获得20
21秒前
四憙完成签到 ,获得积分10
22秒前
甜菜发布了新的文献求助10
22秒前
23秒前
24秒前
超帅的怡发布了新的文献求助10
25秒前
aura发布了新的文献求助10
25秒前
hjy完成签到 ,获得积分20
26秒前
27秒前
csz发布了新的文献求助10
27秒前
28秒前
一二完成签到 ,获得积分10
29秒前
高分求助中
Production Logging: Theoretical and Interpretive Elements 2000
Very-high-order BVD Schemes Using β-variable THINC Method 1200
BIOLOGY OF NON-CHORDATES 1000
进口的时尚——14世纪东方丝绸与意大利艺术 Imported Fashion:Oriental Silks and Italian Arts in the 14th Century 800
Autoregulatory progressive resistance exercise: linear versus a velocity-based flexible model 550
The Collected Works of Jeremy Bentham: Rights, Representation, and Reform: Nonsense upon Stilts and Other Writings on the French Revolution 320
Generative AI in Higher Education 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 物理化学 催化作用 细胞生物学 免疫学 冶金
热门帖子
关注 科研通微信公众号,转发送积分 3356590
求助须知:如何正确求助?哪些是违规求助? 2980182
关于积分的说明 8693388
捐赠科研通 2661758
什么是DOI,文献DOI怎么找? 1457368
科研通“疑难数据库(出版商)”最低求助积分说明 674761
邀请新用户注册赠送积分活动 665624