专题首页
中图分类法(120)
马克思主义、列宁主义、毛泽东思想、邓小平理论(24)
哲学、宗教(5)
社会科学总论(15)
军事(64)
文学(1)
农业科学(5)
在“
自然资源管理
”中,
命中:
120
条,耗时:小于0.01 秒
1.
Anthropogenic changes in
phytoplankton
in lakes of the Kenti River system (Republic of Karelia)
作者:
T. A. Chekryzheva (1)
关键词:
phytoplankton
;
species composition
;
indicator species
;
abundance
;
biomass
刊名:Water Resources
年:2014
2.
Long-term variations of the trophic state index in the Narochanskie Lakes and its relation with the major hydroecological parameters
作者:
B. V. Adamovich
;
T. V. Zhukova
;
T. M. Mikheeva
;
R. Z. Kovalevskaya…
关键词:
lakes
;
trophic status
;
Carlson index
;
hydrochemical characteristics
;
phytoplankton
biomass
刊名:Water Resources
出版者:MAIK Nauka/Interperiodica distributed exclusively by Springer Science Business Media LLC.
年:2016
3.
Comparative analysis of
phytoplankton
habitat in large river systems in different climatic zones: Case study of the Volga and Yenisei rivers
作者:
N. M. Mineeva (1) L. A. Shchur (2)
关键词:
phytoplankton
;
productivity
;
Volga
;
Yenisei
;
environmental factors
;
geographic zoning
刊名:Water Resources
年:2014
4.
Glophymed: An index to establish the ecological status for the Water Framework Directive based on
phytoplankton
in coastal waters
作者:
I. Romero
;
M. Pach¨¦s
;
R. Mart¨ªnez-Guijarro
;
J. Ferrer
关键词:
Water Framework Directive
;
Ecological indicators
;
Phytoplankton
;
Coastal waters
;
Mediterranean Sea
;
Anthropogenic pressure
刊名:Marine Pollution Bulletin
年:2013
5.
Phytoplankton
biomass is mainly controlled by hydrology and phosphorus concentrations in tropical hydroelectric reservoirs
作者:
Luciana M. Rangel (1) L煤cia H. S. Silva (1) Priscila Rosa (2) F谩bio Roland (2) Vera L. M. Huszar (1) vhuszar@gbl.com.br
关键词:
Cyanobacteria –
;
Nitrogen
;
fixing –
;
Nutrients –
;
Phytoplankton
limitation –
;
Water residence time –
;
Zooplankton grazing
刊名:Hydrobiologia
年:2012
6.
Joint effects of resources and amphibians on pond ecosystems
作者:
Freya E. Rowland
;
Madelyn B. Rawlings
;
Raymond D. Semlitsch
关键词:
Food webs
;
Salamanders
;
Anurans
;
Bottom–up
;
Top–down
刊名:Oecologia
出版者:Springer Berlin Heidelberg
年:2017
7.
Ecological chaos and the choice of optimal harvesting policy
作者:
Ranjit Kumar Upadhyay
;
ranjit_ism@yahoo.com
;
S.K. Tiwari
关键词:
Optimal utilization
;
Fishery resources
;
Economic gain
;
Ecological health
刊名:Journal of Mathematical Analysis and Applications
年:2017
8.
The influence of external perturbations on the functional composition of
phytoplankton
in a Mediterranean reservoir
作者:
A. B. Hoyer
;
E. Moreno-Ostos
;
J. Vidal
;
J. M. Blanco
;
R. L. Palomino-Torres
;
A. Basanta
;
C. Escot and F. J. Rueda
关键词:
External perturbations
;
Mediterranean reservoir
;
Phytoplankton
functional groups
;
Phytoplankton
succession
;
Selective withdrawal
刊名:Hydrobiologia
年:2009
9.
Determination of
phytoplankton
composition using absorption spectra
作者:
R. Martí
;
nez-Guijarro
;
I. Romero
;
M. Paché
s ;
J.G. del Rí
o ;
C.M. Martí
;
G. Gil
;
A. Ferrer-Riquelme
;
J. Ferrer
关键词:
Absorption spectra
;
Phytoplankton
classes
;
Partial Least Squares
;
Phytoplankton
pigments
刊名:Talanta
年:2009
10.
Mesoscale survey of western and northwestern Irish lakes – Spatial and aestival patterns in trophic status and
phytoplankton
community structure
作者:
N. Touzet
;
a
;
nicolas.touzet@nuigalway.ie"" rel=""nofollow
关键词:
ArcGIS
;
Phytoplankton
community
;
Regionalisation framework
;
Water quality
刊名:Journal of Environmental Management
年:2011
1
2
3
4
5
6
7
8
9
按检索点细分(120)
题名(20)
关键词(37)
摘要(105)
按年细分(120)
2031年及以后(2)
2017年(2)
2016年(3)
2015年(5)
2014年(4)
2013年(9)
2012年(6)
2011年(9)
2010年(7)
2009年(14)
2008年(7)
2007年(7)
2006年(5)
2005年(3)
2004年(6)
2003年(3)
2002年(5)
2001年(4)
2000年(4)
2000年及以前(15)
按来源细分(120)
Elsevier(73)
Springer(47)
按类型细分(120)
期刊(120)