نتایج جستجو برای: arable lands

تعداد نتایج: 13807  

Journal: :Agrobìologìâ 2023

A significant part of arable lands on slopes is subject to removal from active processing, and alkalization with perennial herbs. We know that the most productive are those agro-phytocenoses, forming based a single-species sowing alfalfa (Lucerne), its mixture cereal grasses. However, restrictive factor alfalfa-cereal grasslands high productivity soil solution acid reaction. The research carrie...

ژورنال: علوم آب و خاک 2008
خادمی, حسین, دهقان, رمضانعلی , شریعتمداری, حسین ,

  Studying soil phosphorus fractions is useful in understanding soil pedogenesis as well as soil fertility. In this reseach, 20 soil samples were taken from different depths of 0-30 and 30-60 cm of upper-slope, mid-slope and lower-slope positions of four toposequences in arid (Jei and Ziar in Isfahan) and semiarid (Farokhshahr and Shahrekord) regions. In each toposequence, the soil depth was re...

2016
Laura Delgado-Balbuena Juan M. Bello-López Yendi E. Navarro-Noya Analine Rodríguez-Valentín Marco L. Luna-Guido Luc Dendooven

Mixing soil or adding earthworms (Eisenia fetida (Savigny, 1826)) accelerated the removal of anthracene, a polycyclic aromatic hydrocarbon, from a pasture and an arable soil, while a non-ionic surfactant (Surfynol® 485) inhibited the removal of the contaminant compared to the untreated soil. It was unclear if the treatments affected the soil bacterial community and consequently the removal of a...

2014
Franziska Lauer Katharina Prost Renate Gerlach Stefan Pätzold Mareike Wolf Sarah Urmersbach Eva Lehndorff Eileen Eckmeier Wulf Amelung

Neolithic and Bronze Age topsoil relicts revealed enhanced extractable phosphorus (P) and plant available inorganic P fractions, thus raising the question whether there was targeted soil amelioration in prehistoric times. This study aimed (i) at assessing the overall nutrient status and the soil organic matter content of these arable topsoil relicts, and (ii) at tracing ancient soil fertilizing...

2011
Vanesa Carbajo Bowy den Braber Wim H. van der Putten Gerlinde B. De Deyn

Restoration of species-rich grasslands on ex-arable land can help the conservation of biodiversity but faces three big challenges: absence of target plant propagules, high residual soil fertility and restoration of soil communities. Seed additions and top soil removal can solve some of these constraints, but restoring beneficial biotic soil conditions remains a challenge. Here we test the hypot...

2017
Yafei Li Gaohuan Liu Hualin Xie Yanni Yu

The spatial and temporal characteristics and driving factors analysis of regional land use are the core scientific problems in the research of ecological environment and human sustainable development. It is also an important basis for the government to formulate land management policy. Based on the land use maps of 2000, 2005, 2010 and 2015, this article analyzed the spatiotemporal pattern of l...

Journal: :Resources 2022

The northwestern highlands of Ethiopia are characterized by severe land degradation and apparently low agricultural productivity. This situation is continuously threatening the livelihoods smallholder farmers who mainly sustain their living from cultivation annual crops. In recent years, however, have started converting croplands to plantations Eucalyptus, a non-native tree species Africa, for ...

2015
Dries Verheyen Nele Van Gaelen Benedicta Ronchi Okke Batelaan Eric Struyf Gerard Govers Roel Merckx Jan Diels

Diffuse phosphorus (P) export from agricultural land to surface waters is a significant environmental problem. It is critical to determine the natural background P losses from diffuse sources, but their identification and quantification is difficult. In this study, three headwater catchments with differing land use (arable, pasture and forest) were monitored for 3 years to quantify exports of d...

2016
Alison J. Haughton David A. Bohan Suzanne J. Clark Mark D. Mallott Victoria Mallott Rufus Sage Angela Karp

Suggestions that novel, non-food, dedicated biomass crops used to produce bioenergy may provide opportunities to diversify and reinstate biodiversity in intensively managed farmland have not yet been fully tested at the landscape scale. Using two of the largest, currently available landscape-scale biodiversity data sets from arable and biomass bioenergy crops, we take a taxonomic and functional...

Journal: :Applied and environmental microbiology 1993
A Frostegård A Tunlid E Bååth

The phospholipid fatty acid (PLFA) pattern was analyzed in a forest humus and in an arable soil experimentally polluted with Cd, Cu, Ni, Pb, or Zn at different concentrations. In both soil types, there were gradual changes in the PLFA patterns for the different levels of metal contamination. The changes in the forest soil were similar irrespective of which metal was used, while in the arable so...

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