CORE
🇺🇦
make metadata, not war
Services
Services overview
Explore all CORE services
Access to raw data
API
Dataset
FastSync
Content discovery
Recommender
Discovery
OAI identifiers
OAI Resolver
Managing content
Dashboard
Bespoke contracts
Consultancy services
Support us
Support us
Membership
Sponsorship
Community governance
Advisory Board
Board of supporters
Research network
About
About us
Our mission
Team
Blog
FAQs
Contact us
洱海苦草(Vallisneria natans)水深分布和叶片C、N、P化学计量学对不同水深的响应
Authors
何亮
倪乐意
+4 more
张霄林
曹特
朱天顺
李威
Publication date
1 January 2014
Publisher
Abstract
湖泊水深是影响沉水植物生长、繁殖与分布的重要环境因子,水深增加改变了水下光照、风浪和底泥特性等,因而可能导致沉水植物的生理生化指标发生相应变化.本研究通过对云南洱海沉水植物苦草(Vallisneria natans)随水深分布的情况进行调查,并分析了定植于不同水深的苦草叶片碳(C)、氮(N)和磷(P)含量及其比率,以阐明水深变化对苦草叶片生态化学计量学的影响.结果表明洱海苦草定植的水深范围为0.5~5.6m,在1.5~2.4m处达到最大频度,在2.5~3.4m处达到最大相对生物量,这表明苦草在洱海中的最适生长深度在1.5~3.4m范围内;苦草叶片C、N和P含量平均值分别为356.10、26.13和3.54mg/g,C:N、C:P和N:P的平均值分别为14.38、113.46和7.85;苦草叶片C含量、C:N和C:P均随水深增加而降低,N和P含量则随水深增加而升高,N:P在0.5~1.4m较高,其余水深梯度之间则没有显著差异.总体上,苦草叶片C、N、P含量及其化学计量特征显著地受到了湖泊水深的影响.另外,本研究还发现水深的增加使得苦草叶片N、P含量发生聚敛,这导致其N、P之间的耦合性变弱
Similar works
Full text
Available Versions
Institute of Hydrobiology, Chinese Academy Of Sciences
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.ihb.ac.cn:342005/41020
Last time updated on 23/01/2021
Institute of Hydrobiology, Chinese Academy Of Sciences
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.ihb.ac.cn:342005/41018
Last time updated on 23/01/2021