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马克思主义、列宁主义、毛泽东思想、邓小平理论(6)
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在“
自然资源管理
”中,
命中:
13
条,耗时:小于0.01 秒
1.
Climate change adaptation and mitigation in smallholder crop–livestock
systems
in sub-Saharan Africa: a call for integrated impact assessments
作者:
Katrien Descheemaeker
;
Simon J. Oosting…
关键词:
Farm size
;
Risk
;
Agricultural model
;
Farming
systems
analysis
;
Poverty
;
Food security
刊名:Regional Environmental Change
出版者:Springer Berlin Heidelberg
年:2016
2.
Grazing
land management and biodiversity in the Atlantic European heathlands: a review
作者:
Rocío Rosa García (1) Mariecia D. Fraser (2) Rafael Celaya (1) Luis Miguel Mendes Ferreira (3) Urcesino García (1) Koldo Osoro (1)
关键词:
Foraging behaviour
;
Mixed
grazing
;
Plant and animal biodiversity
;
Native livestock breeds
;
Extensive
systems
of grassland management
刊名:Agroforestry
Systems
年:2013
3.
The effects of China’s environmental protection policies on pasture quality and the activities of small-scale herders in Songpan County, Western Sichuan
作者:
Gregory Veeck
;
Zhou Li
;
Fawen Yu…
关键词:
Pasture ecology
;
Pasture
;
based husbandry
;
Enhanced vegetation index (EVI)
;
Songpan County
;
Aba Prefecture
;
Sichuan Province
;
China
刊名:Environmental Monitoring and Assessment
出版者:Springer Netherlands
年:2015
4.
Grazing
institutions in Castilla-La Mancha, dynamic or downward trend in the Spanish cereal–sheep system
作者:
R. Caballero
;
X. Ferná
;
ndez-Santos
关键词:
Mixed
grazing
systems
;
Mobility
;
Accessibility
;
Land resources
;
Incentive compatibility
;
Policy support
刊名:Agricultural
Systems
年:2009
5.
Managing nutrient in organic farming system: reliance on livestock production for nutrient management of arable farmland
作者:
Damien Foissy (1) Jean-Fran?ois Vian (2) Christophe David (2)
关键词:
Nutrient budgets
;
Organic farms
;
Crop production
;
Livestock
;
Stocking rate
;
Intensity
刊名:Organic Agriculture
年:2013
6.
Long-term cattle gain responses to stocking rate and
grazing
systems
in northern
mixed
-grass prairie
作者:
Justin D. Derner
;
Richard H. Hart
;
Michael A. Smith
;
James W. Waggoner Jr.
关键词:
Average daily gain
;
Continuous
grazing
;
Grazing
pressure
;
Rotational
grazing
;
Short-duration
grazing
;
Spring precipitation
刊名:Livestock Science
年:2008
7.
Performance, management and objectives of cattle farming on communal ranges in Namibia
作者:
M. Siegmund-Schultzea
;
b
;
marianna.siegmund-schultze@gmx.de
;
F. Langea
;
U. Schneiderata
;
J. Steinbacha
关键词:
Herd size
;
Life history interviews
;
Mixed
farming system
;
Pastoral farming system
刊名:Journal of Arid Environments
年:2012
8.
Crossbreeding and intensification of smallholder crop–cattle farming
systems
in Bhutan
作者:
T. Samdup
;
H.M.J. Udo
;
C.H.A.M. Eilers
;
M.N.M. Ibrahim
;
A.J. van der Zijpp
关键词:
Mixed
farming
;
Crossbreeding
;
Technical performances
;
Gross margins
;
Agro-ecological conditions
;
Bhutan
刊名:Livestock Science
年:2010
9.
Collective action for
grazing
land management in crop??????livestock
mixed
systems
in the highlands of northern Ethiopia
作者:
Gebremedhin
;
Berhanu
;
Pender
;
John
;
Tesfay
;
Girmay
关键词:
Collective action
;
Grazing
land management
;
Ethiopia
;
Tigray
刊名:Agricultural
Systems
年:2004
10.
Estimating fractional cover of photosynthetic vegetation, non-photosynthetic vegetation and bare soil in the Australian tropical savanna region upscaling the EO-1 Hyperion and MODIS sensors
作者:
Juan Pablo Guerschman
;
Michael J. Hill
;
Luigi J. Renzullo
;
Damian J. Barrett
;
Alan S. Marks
;
Elizabeth J. Botha
关键词:
Non photosynthetic vegetation
;
Fractional cover
;
MODIS
;
EO1-hyperion
;
NDVI
;
Cellulose absorption index
;
Australia
;
Savannas
刊名:Remote Sensing of Environment
年:2009
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