نتایج جستجو برای: agricultural land use

تعداد نتایج: 1889356  

The pasture and forest land use change to agricultural use can effect on many properties of the soil and its productivity. The present research aims to investigate various forms of K (soluble, exchangeable, non-exchangeable, and structural forms) and some soil properties in different land use of three areas including Choram, Kakan and Bahmaei in Kohgiluyeh and Buyer-Ahmad Province. Four profile...

Journal: :Applied soil ecology : a section of Agriculture, Ecosystems & Environment 2009
R Zornoza C Guerrero J Mataix-Solera K M Scow V Arcenegui J Mataix-Beneyto

In Eastern Spain, almond trees have been cultivated in terraced orchards for centuries, forming an integral part of the Mediterranean forest scene. In the last decades, orchards have been abandoned due to changes in society. This study investigates effects of changes in land use from forest to agricultural land and the posterior land abandonment on soil microbial community, and the influence of...

Journal: :The American journal of tropical medicine and hygiene 2015
Douglas J McCauley Daniel J Salkeld Hillary S Young Rhodes Makundi Rodolfo Dirzo Ralph P Eckerlin Eric F Lambin Lynne Gaffikin Michele Barry Kristofer M Helgen

Understanding the effects of land-use change on zoonotic disease risk is a pressing global health concern. Here, we compare prevalence of Yersinia pestis, the etiologic agent of plague, in rodents across two land-use types-agricultural and conserved-in northern Tanzania. Estimated abundance of seropositive rodents nearly doubled in agricultural sites compared with conserved sites. This relation...

Journal: :Acta Agraria Debreceniensis 2014

2004
Abigail M. York Darla K. Munroe

The impact of growth management policy through zoning ordinances on land-use and -cover change is a topic of increasing interest, especially with regard to urban sprawl and forest and agricultural land preservation. As urban and residential land use is quickly replacing extractive land use in southern Indiana, implementation of growth management policy has become a topic of great debate. This a...

2007
Iain Fraser Carly Stevens

Current levels of nitrogen deposition, especially ammonia, seriously impact upon ecosystems biological diversity. However, land use policy maintaining and enhancing key ecosystems in the UK in most cases does not explicitly take account of this pollution in terms of onsite management prescriptions. In this paper the economic potential of agricultural land retirement to reduce localised nitrogen...

Journal: :مرتع و آبخیزداری 0
کامران کریمی دانشجوی دکتری بیابان زدایی، دانشگاه کشاورزی و منابع طبیعی گرگان، ایران غلامرضا زهتابیان استاد دانشکده منابع طبیعی، دانشگاه تهران، ایران مرزبان فرامرزی استادیار گروه مرتع و آبخیزداری، دانشگاه ایلام، ایران حسن خسروی استادیار دانشکده منابع طبیعی، دانشگاه تهران، ایران

remote sensing is a key technology for assessing expansion and rate of land cover changes that awareness of these changes as the basic information has a special importance for various programs. in this study, land use changes were examined over the past 24 years, and the feasibility of predicting it in the future was evaluated by using the markov chain model of the abbas plain. landsat tm, etm+...

Journal: :international journal of agricultural science, research and technology in extension and education systems 0
onwuchekwa raphael iheke department of agricultural economics, michael okpara university of agriculture, umudike pmb 7267, umuahia, abia state, nigeria ukandu ihuoma department of agricultural economics, michael okpara university of agriculture, umudike pmb 7267, umuahia, abia state, nigeria

this study examined the effect of urbanization on agricultural production in abia state. specifically, it categorized the land tenancy status of the farmers, analyzed the effect of urbanization on agricultural productivity and identified the constraints to agricultural productivity. multistage random sampling technique was used to select the respondents. primary data collected using structured ...

Journal: :Japan journal of water pollution research 1988

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید