专题首页
中图分类法(3)
马克思主义、列宁主义、毛泽东思想、邓小平理论(2)
军事(1)
在“
自然资源管理
”中,
命中:
3
条,耗时:小于0.01 秒
1.
Fish Species as Eco-indicators in the Comparative Ecological Characterisation of two Creeks in the Central Niger Delta, Nigeria
作者:
P. B. L. Tamuno (1) M. D. Smith (2)
关键词:
Eco
;
indicator
;
Fish species
;
Kolo creek
;
Otuoke creek
;
Ecological survey
;
Shannon
diversity
index
;
Simpson
diversity
index
;
Bray
;
curtis similarity
index
刊名:Water Resources Management
年:2013
2.
Estimation of forest stand volume, tree density and bio
diversity
using Landsat ETM Data, comparison of linear and regression tree analyses
作者:
Jahangir Mohammadia
;
Shaban Shataeeb
;
Manoocher Babanezhadc
关键词:
Forest attributes estimation
;
ETM
;
;
Linear
;
Tree regression
;
Comparison
;
Hyrcanian forests
刊名:Procedia Environmental Sciences
年:2011
3.
Woody species
diversity
in a changing landscape in the south-central highlands of Ethiopia
作者:
Motuma Tolera
;
Zebene Asfaw
;
Mulugeta Lemenih
;
Erik Karltun
关键词:
Cultivated land
;
Deforestation
;
Diversity
index
;
Homegarden
;
Wealth class
刊名:Agriculture, Ecosystems & Environment
年:2008
1
按检索点细分(3)
关键词(1)
摘要(2)
按年细分(3)
2013年(1)
2011年(1)
2008年(1)
按来源细分(3)
Elsevier(2)
Springer(1)
按类型细分(3)
期刊(3)