نتایج جستجو برای: soil evaluation

تعداد نتایج: 996753  

Journal: :Applied and environmental microbiology 1979
K Bancroft I F Grant M Alexander

In an acid forest soil of pH 4.0 to 4.2 amended with glucose, 1.0 mug of nitrite-N per g of soil inhibited the rate of O(2) utilization and CO(2) evolution. The inhibition was evident only for several hours after nitrite addition, and the subsequent rate of glucose mineralization was the same as in soil not receiving nitrite. The decomposition of protein hydrolysate was reduced by 10 mug of nit...

2007
C. Gruhier

This paper presents an evaluation of AMSR (Advanced Microwave Scanning Radiometer) soil moisture products, based on the comparison with three ground soil moisture networks. The selected ground sites are representative of various climatic, hydrologic and environmental conditions in temperate and semi-arid areas. They are located in the south-west of France, in the south-east of Australia and in ...

2002
Renata Chmelová Bořivoj Šarapatka

According to a UN Environment Programme survey, topsoil is eroding faster than it forms on about one third of the world’s cropland, causing an estimated 85 % of the world s land degradation from human activities. Erosion of soil, mainly by water, is also a problem in the Czech Republic where 54 % of arable land is endangered by water erosion. The topic of this article is to describe contemporar...

2014
Mingkai Qu Weidong Li Chuanrong Zhang Biao Huang Yongcun Zhao

Estimating standard-exceeding probabilities of toxic metals in soil is crucial for environmental evaluation. Because soil pH and land use types have strong effects on the bioavailability of trace metals in soil, they were taken into account by some environmental protection agencies in making composite soil environmental quality standards (SEQSs) that contain multiple metal thresholds under diff...

2008
Zhi Li Wenzhao Liu Xunchang Zhang

Soil water balance has response to climate change and evaluation of soil water change is one of the most important items of climate change impact assessment. GCM outputs under three scenarios were statistically downscaled during 2010~2039 to simulate the potential change of soil water balance in Wangdonggou watershed on the Loess Plateau with WEPP model. GCM predicted a 1.8 to 17.5% increase in...

2005
R. Giannecchini

The Apuan Alps are characterized by frequent heavy rainfall. In several cases this triggered many shallow landslides (soil slips). With the aim of contributing to the landslide hazard evaluation of the southern Apuan Alps (upper Versilian area), a detailed analysis of the main pluviometric events was carried out. Data recorded at the main raingauge of the area from 1975 to 2002 were analysed an...

Journal: :international journal of advanced biological and biomedical research 2014
afshin azmoodeh-mishamandani shamsollah abdollahpoor hossein navid mohammad moghaddam vahed

the object of this study was evaluation of a walking tractor drawn peanut harvester at different conditions of soil moisture content and forward speed and comparing it with manual harvesting. the evaluation factors for peanut harvester were two levels of soil moisture content and three levels of forward speed. the results revealed that the effect of soil moisture content was only significant on...

2000
T. R. Nisar Ahamed K. Gopal Rao

Crop-land suitability analysis is a prerequisite to achieve optimum utilisation of the available land resources for sustainable agricultural production. The Food and Agricultural Organisation [FAO, 1976. A framework for land evaluation (Soils Bulletin No. 32). FAO, Rome.] recommended an approach for land suitability evaluation for crops in terms of suitability ratings from highly suitable to no...

Journal: Desert 2012
J. Givi J. Mohammadi M. Naderi Khorasgani N. Yaghmaeian Mahabadi R.M. Poch Claret

The present research aims to apply several approaches for suitability evaluation of lands under cultivation ofalfalfa and barley in Chaharmil mechanized farming center, Ardestan town, Isfahan province, Iran. Climatic andsoil maps of the climate and soil data were provided in raster format. Land evaluation carried out using maximumlimitation, parametric and multi-criteria (Analytical Hierarchy P...

Journal: :desert 2012
n. yaghmaeian mahabadi j. givi m. naderi khorasgani j. mohammadi r.m. poch claret

the present research aims to apply several approaches for suitability evaluation of lands under cultivation ofalfalfa and barley in chaharmil mechanized farming center, ardestan town, isfahan province, iran. climatic andsoil maps of the climate and soil data were provided in raster format. land evaluation carried out using maximumlimitation, parametric and multi-criteria (analytical hierarchy p...

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