نتایج جستجو برای: arable land is limited

تعداد نتایج: 7376123  

Journal: :Remote Sensing 2016
Florian Heigl Carina R. Stretz Wolfgang Steiner Franz Suppan Thomas Bauer Gregor Laaha Johann G. Zaller

Road traffic has severe effects on animals, especially when road-kills are involved. In many countries, official road-kill data are provided by hunters or police; there are also road-kill observations reported by citizen scientists. The aim of the current study was to test whether road-kill reports by hunters stem from similar landscapes than those reported by citizen scientists. We analysed th...

2014
Susanne Stein

This study aimed at analysing patterns of crop sequences over time throughout the German federal state of Lower Saxony from 2005 to 2012. Therefore, the IACS (Integrated Administration and Control System) data was analysed for the identification of spatial and temporal pattern of crops grown on farmer’s fields. Lower Saxony is a region where maize growing had a steep increase and, therefore, wa...

Journal: :BIO web of conferences 2021

The work is devoted to the study of granulometric composition soils 120-year and 240-year agricultural development meadow-steppe landscape on example Belgorod region. In lateral distribution silt fraction contained in arable horizon, a significant increase its proportion lower parts soil catenas arable, for variations are less noticeable. averaged values content over slope profiles land showed ...

2017
Yuanyuan Yang Shuwen Zhang Yansui Liu Xiaoshi Xing Alex de Sherbinin

Historical land use information is essential to understanding the impact of anthropogenic modification of land use/cover on the temporal dynamics of environmental and ecological issues. However, due to a lack of spatial explicitness, complete thematic details and the conversion types for historical land use changes, the majority of historical land use reconstructions do not sufficiently meet th...

Journal: :Applied and environmental microbiology 2003
Fritz Oehl Ewald Sieverding Kurt Ineichen Paul Mäder Thomas Boller Andres Wiemken

The impact of land use intensity on the diversity of arbuscular mycorrhizal fungi (AMF) was investigated at eight sites in the "three-country corner" of France, Germany, and Switzerland. Three sites were low-input, species-rich grasslands. Two sites represented low- to moderate-input farming with a 7-year crop rotation, and three sites represented high-input continuous maize monocropping. Repre...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2012
Ian M Clark Natalya Buchkina Deveraj Jhurreea Keith W T Goulding Penny R Hirsch

Bacterial denitrification results in the loss of fertilizer nitrogen and greenhouse gas emissions as nitrous oxides, but ecological factors in soil influencing denitrifier communities are not well understood, impeding the potential for mitigation by land management. Communities vary in the relative abundance of the alternative dissimilatory nitrite reductase genes nirK and nirS, and the nitrous...

Journal: :desert 2014
saeid hamzeh marzieh mokarram seyed kazem alavipanah

land suitability analysis, commonly known as land evaluation, is considered an interface between land resourcesurvey and land use planning and management. land evaluation be carried out to estimate the suitability of land fora specific use such as arable farming or irrigated agriculture. there are several established techniques for generatingland suitability evaluation. this research was carrie...

2003
Markus Erhard Holger Böken Frank Glante

For the precaution against physical soil degradation in managed soils, accurate planning data about anthropogenic impacts and for policy making applicable indicators to describe the driving force and state are required. To assess the potential erosion risk, accurate information is available, but to assess the actual erosion risk it is necessary to regard current land-use and cultivation data fo...

Journal: :Chemosphere 2006
Andrew A Meharg Clare Deacon Kevin J Edwards Margaret Donaldson Donald A Davidson Christian Spring Charles M Scrimgeour Jörg Feldmann A Rabb

The impact of ancient fertilization practices on the biogeochemistry of arable soils on the remote Scottish island of Hirta, St Kilda was investigated. The island was relatively unusual in that the inhabitants exploited seabird colonies for food, enabling high population densities to be sustained on a limited, and naturally poor, soil resource. A few other Scottish islands, the Faeroes and some...

2005
F. J. Zhao S. P. McGrath

Sulphur K-edge X-ray absorption near edge structure (XANES) spectroscopy was used to quantify S species in humic substance extracts from ten soils from the UK, China and New Zealand, which differ in land use and agricultural management. XANES spectroscopy showed the presence of most reduced (sulphides, disulphides, thiols and thiophenes), intermediate (sulphoxides and sulphonates) and highly ox...

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