نتایج جستجو برای: pasture land

تعداد نتایج: 124794  

2008
A. Saleh

Over 500,000 hectares of grassland have been converted to managed forestland in Uruguay since} 990. This study was initiated to determine the hydrologic and water quality impacts of changing land use from grassland (pasture) to pine plantation in Uruguay. Two adjacent watersheds located on the El Cerro ranch in the Tacuarembo River basin were selected for a paired watershed study. Outflow rates...

Journal: :Remote Sensing 2016
Michael Schmidt John Carter Grant Stone Peter O'Reagain

Pasture biomass is an important quantity globally in livestock industries, carbon balances, and bushfire management. Quantitative estimates of pasture biomass or total standing dry matter (TSDM) at the field scale are much desired by land managers for land-resource management, forage budgeting, and conservation purposes. Estimates from optical satellite imagery alone tend to saturate in the cov...

A.O. Akinwumi, J.A. Akinlade O.O. Ojebiyi O.S. Adedeji S.A. Ameen T.K. Ogunsina

This paper considers the potential problems that may militate against the adoption of organic poultry production in Nigeria. Factors identified include: higher risk of diseases like coccidiosis and Newcastle disease, disease prevention and control / herd health management, disease containment in times of outbreak, land acquisition (land tenure system), market economies / cost-benefit ratio, pas...

Journal: :Ecological applications : a publication of the Ecological Society of America 2012
V C Radeloff E Nelson A J Plantinga D J Lewis D Helmers J J Lawler J C Withey F Beaudry S Martinuzzi V Butsic E Lonsdorf D White S Polasky

Land-use change significantly contributes to biodiversity loss, invasive species spread, changes in biogeochemical cycles, and the loss of ecosystem services. Planning for a sustainable future requires a thorough understanding of expected land use at the fine spatial scales relevant for modeling many ecological processes and at dimensions appropriate for regional or national-level policy making...

2014
Mukesh Singh Boori Komal Choudhary

Remote sensing; GIS; Tourism; Land cover classification Abstract The Jesenı́ky Mountains tourism in Czech Republic is unique for its floristic richness. This is caused mainly by the altitude division and polymorphism of the landscape, climate and soil structure. This study assesses the impacts of tourism on the land cover in the Jesenı́ky Mountain region by comparing multi-temporal Landsat imager...

2015
M. R. Islam C. E. F. Clark S. C. Garcia K. L. Kerrisk

The aim of this modelling study was to investigate the effect of large herd size (and land areas) on walking distances and milking interval (MI), and their impact on milk yield and economic penalties when 50% of the total diets were provided from home grown feed either as pasture or grazeable complementary forage rotation (CFR) in an automatic milking system (AMS). Twelve scenarios consisting o...

2004
CATHERINE POTVIN EDWARD WHIDDEN TIM MOORE

This paper examines changes in carbon (C) pools associated with land-use, synthesizing data from two experiments dealing with different aspects of tree plantation establishment in Central Panamá. First, we analysed soil profiles in a grazed pasture and an adjacent 5-year-old teak (Tectona grandis) plantation. There were small differences in soil C mass in the top 10 cm of the pasture and the pl...

2009
R. D. Harmel Daren Harmel

Application of litter and other organic by-products to agricultural land off site of animal production facilities has created both environmental concerns and agro-economic opportunities, but limited long-term, field-scale data are available to guide management decisions. Thus, the objective of this study was to determine the water quality effects of repeated annual poultry litter application as...

Extended abstract Introduction The present study was performed to investigate the effects of slope percentage and land use type on the produced sediment by an artificial rainfall simulator in Kakasharaf watershed, a branch of Karkhe watershed (Lorestan province).   Methodology The rainfall simulator used in this research was designed and constructed by the Soil Conservation and...

2016
Seeta A. Sistla Adam B. Roddy Nicholas E. Williams Daniel B. Kramer Kara Stevens Steven D. Allison

Tropical forest conversion to pasture, which drives greenhouse gas emissions, soil degradation, and biodiversity loss, remains a pressing socio-ecological challenge. This problem has spurred increased interest in the potential of small-scale agroforestry systems to couple sustainable agriculture with biodiversity conservation, particularly in rapidly developing areas of the tropics. In addition...

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