نتایج جستجو برای: soil landscape relationships

تعداد نتایج: 466287  

2007
Maria E. GULVIK Maria E. Gulvik

Soil is an important component for monitoring of sustainability of land use in relation to both the conservation of natural resources and biodiversity of ecosystems. Recently research has focused on the role of mites (Acari) in biomonitoring and their importance as soil bioindicators. Mite communities are extremely sensitive to all types of soil disturbance. This article presents a review of so...

2005
M. J. Lindstrom T. E. Schumacher D. E. Lobb D. D. Malo

Soil carbon (C) losses and soil translocation from tillage operations have been identified as causes of soil degradation and soil erosion. The objective of this work was to quantify the variability in tillage-induced carbon dioxide (CO2) loss by moldboard (MP) and chisel (CP) plowing across an eroded landscape and relate the C loss to soil properties. The study site was a 4 ha wheat (Triticum a...

2016
Steven J. Hall Whendee L. Silver

22 Humid tropical forests support large stocks of surface soil carbon (C) that exhibit high 23 spatial variability over scales of meters to landscapes (km). Reactive minerals and organo-metal 24 complexes are known to contribute to C accumulation in these ecosystems, although potential 25 interactions with environmental factors such as oxygen (O2) availability have received much less 26 attenti...

2010
Zigomar M. de Souza Domingos G. P. Cerri Paulo S. G. Magalhães Diego S. Siqueira

Soils submitted to the same management system in places with little variation of landscape, manifest differentiated spatial variability of their attributes and crop yield. The aim of this work was to investigate the correlation between spatial variability of the soil attributes and sugarcane yield as a result of soil topography. To achieve this objective, a test area of 42 ha located at the São...

2010
Andreas Lindauer Ulrich Jaehde Georg Hempel

Für meine Familie " Although it may seem a paradox, all exact science is dominated by the idea of approximation. "

2015
Jing Peng Christophe Van den Bulte

We investigate paid endorsement as a crowd-sourcing social advertising mechanism that allows advertisers to bypass publishers (e.g., Facebook) and recruit individual endorsers of their own choice at affordable prices. Specifically, we investigate (i) how incentives affect endorsers’ participation and effectiveness, (ii) what types of endorsers are most effective in generating online engagement ...

2013
Michal LEHNERT

The soil temperature regime is a relevant part of comprehensive topoclimatic research. Soil temperature data series measured at selected stations of the metropolitan station system of Olomouc in 2010–2011 were analysed. The focus was on the identification of geofactors influencing the soil temperature regime in the area of interest. The possibility of soil temperature simulation using knowledge...

Journal: :International Journal of Geographical Information Science 2003
Feng Qi A-Xing Zhu

This paper develops a knowledge discovery procedure for extracting knowledge of soil-landscape models from a soil map. It has broad relevance to knowledge discovery from other natural resource maps. The procedure consists of four major steps: data preparation, data preprocessing, pattern extraction, and knowledge consolidation. In order to recover true expert knowledge from the error-prone soil...

2014
Gregory E. Maurer David R. Bowling

Mountain snowpacks directly and indirectly influence soil temperature (Tsoil) and soil water content (h). Vegetation, soil organisms, and associated biogeochemical processes certainly respond to snowpack-related variability in the soil biophysical environment, but there is currently a poor understanding of how snow-soil interactions vary in time and across the mountain landscape. Using data fro...

2001
Arjun M. Heimsath John Chappell William E. Dietrich Kunihiko Nishiizumi Robert C. Finkel

Late Quaternary rates of apparent soil production, bedrock incision, and average erosion are determined for the southeastern highlands of Australia using in situ produced cosmogenic nuclide concentrations of Be and Al. Apparent soil production rates define a steep, inverse exponential function of soil depth with a maximum of 143mMa 1 under zero soil depth. There were no observed soil depths bet...

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