نتایج جستجو برای: eg in abandoned lands

تعداد نتایج: 16978934  

Journal: :Monthly Notices of the Royal Astronomical Society 1997

Journal: :Science 2008
Joseph Fargione Jason Hill David Tilman Stephen Polasky Peter Hawthorne

Increasing energy use, climate change, and carbon dioxide (CO2) emissions from fossil fuels make switching to low-carbon fuels a high priority. Biofuels are a potential low-carbon energy source, but whether biofuels offer carbon savings depends on how they are produced. Converting rainforests, peatlands, savannas, or grasslands to produce food crop-based biofuels in Brazil, Southeast Asia, and ...

Journal: :فقه و اصول 0

in this article, aimed at promoting iranian statutes and increasing their applicatory aspects and for providing more and more financial security of society, the legal rule of i‘rāḍ (avoidance, abandonment) is deliberated on, which is a rule that is not clearly and extensively discussed but is the basis of some rules in iranian civil law. this has caused some obscurities, and sometimes, hasty de...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2007
Raymond D Semlitsch Travis J Ryan Kevin Hamed Matt Chatfield Bethany Drehman Nicole Pekarek Mike Spath Angie Watland

Roads may be one of the most common disturbances in otherwise continuous forested habitat in the southern Appalachian Mountains. Despite their obvious presence on the landscape, there is limited data on the ecological effects along a road edge or the size of the "road-effect zone." We sampled salamanders at current and abandoned road sites within the Nantahala National Forest, North Carolina (U...

2005
P. G. Scowcroft J. A. Silva

The endemic tree Acacia koa is used to reforest abandoned agricultural lands in Hawaii. Growth may be constrained by soil infertility and toxic concentrations of aluminum (Al) and manganese (Mn) in acidic Oxisols and Ultisols. The effects of phosphorus (P) fertilization at time of planting, soil type, and seed source on koa growth were studied for three years. Phosphorus, applied as triple supe...

2017
Justine Marie Gay-des-Combes Clara Sanz Carrillo Bjorn Jozef Maria Robroek Vincent Eric Jules Jassey Robert Thomas Edmund Mills Muhammad Saleem Arif Leia Falquet Emmanuel Frossard Alexandre Buttler

In many tropical regions, slash-and-burn agriculture is considered as a driver of deforestation; the forest is converted into agricultural land by cutting and burning the trees. However, the fields are abandoned after few years because of yield decrease and weed invasion. Consequently, new surfaces are regularly cleared from the primary forest. We propose a reclamation strategy for abandoned fi...

2016
Thomas Knoke Carola Paul Patrick Hildebrandt Baltazar Calvas Luz Maria Castro Fabian Härtl Martin Döllerer Ute Hamer David Windhorst Yolanda F Wiersma Giulia F Curatola Fernández Wolfgang A Obermeier Julia Adams Lutz Breuer Reinhard Mosandl Erwin Beck Michael Weber Bernd Stimm Wolfgang Haber Christine Fürst Jörg Bendix

High landscape diversity is assumed to increase the number and level of ecosystem services. However, the interactions between ecosystem service provision, disturbance and landscape composition are poorly understood. Here we present a novel approach to include uncertainty in the optimization of land allocation for improving the provision of multiple ecosystem services. We refer to the rehabilita...

Journal: :Gcb Bioenergy 2022

In the context of increased pressures on land for food and non-food production, it is relevant to understand better, which resources have become unused abandoned where these lands are. Data are what their extend not collected in regular statistics. this paper, we present an approach detect signs abandonment cropping using radar coherence data. The methodology was tested Spanish regions Albacete...

J. Dong K. Xie M. Wei S. Wei X. Ouyang Z. Gong,

This study explored the effects of GnRH agonist (GnRHa) immunity on expression of FSHR mRNA in pituitary and FSHR protein in uteri, and also confirmed its efficacy on uterine development. 42 prepuberty and non cyclic ewes were assigned to 6 experimental groups (EG) during anestrus season. Animals in EG-I, EG-II and EG-III were subcutaneously injected with 200, 300 and 400 μg alarelin antigens (...

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