نتایج جستجو برای: soil landscape relationships

تعداد نتایج: 466287  

2002
Louis R. Iverson

The Illinois Geographic Information System was used to compare the soil and landscape attributes of the State with its historic vegetation, current land use, and patterns of land-use change over the past 160 years. Patch structural characteristics among land types in four geographic zones were also compared. The assessment of patch characteristics revealed a highly modified State with most land...

2013
Michele Duarte de Menezes Sérgio Henrique Godinho Silva Phillip Ray Owens Nilton Curi

In Brazil, soil surveys in more detailed scale are still scarce and necessary to more adequately support the decision makers for planning soil and environment activities in small areas. Hence, this review addresses some digital soil mapping techniques that enable faster production of soil surveys, beyond fitting continuous spatial distribution of soil properties into discrete soil categories, i...

2017
Ruifang Hao Deyong Yu Jianguo Wu

Understanding the relationships between ecosystem services is important for promoting ecosystem service management and sustainable development. The relationships between ecosystem services have commonly been characterized as tradeoffs and synergies. Here, we report that a third type of relationship also exists, in which one ecosystem service constrains the other. Selecting the grassland and agr...

ژورنال: علوم آب و خاک 2017
تقی زاده مهرجرد, روح الله, متین فر, حمیدرضا, مهرابی گوهری, الهام,

Typical routine surveys of soils are relatively expensive in terms of time and cost and due to the fact that maps have been traditionally developed and considering their dependence on experts' opinions, updating maps is time consuming and sometimes not economical as well. While soil digital mapping, using soil various models - the Landscape, leads to simplification of the complexity found in na...

2000
P. E. Gessler

demonstrated the successful implementation of quantitative soil–landscape modeling on a broad landscape Soil–landscape patterns result from the integration of shortand scale useful for soil resource inventory and as a framelong-term pedogeomorphic processes. A 2-ha hillslope catena in Caliwork for understanding soil–landscape function. Moore fornia shows short-distance variation in A horizon de...

Journal: :Proceedings of the National Science Council, Republic of China. Part B, Life sciences 2001
C C Tsai Z S Chen C T Duh F W Horng

Techniques for conventional forest soil surveys in Taiwan need to be further developed in order to save time and money. Although some soil-landscape regression models have been developed to describe and predict soil properties and depths, they have seldom been studied in Taiwan. This study establishes linear soil-landscape regression models related to soil depths and landscape factors found in ...

ژورنال: علوم آب و خاک 2006
شمس الله ایوبی, , محسن حسین علیزاده, ,

Conventional soil survey methods for soils within the watersheds in Iran require a significant budget with many soil surveyors and much time. Additionally, no accurate and reliable information exists on the spatial variability of superface soil parameters in order to predict the soil loss by different models (RUSLE, PISAC, EUPOSEM, MORGAN). Also information on planning and management activities...

شمس الله ایوبی, , محسن حسین علیزاده, ,

Conventional soil survey methods for soils within the watersheds in Iran require a significant budget with many soil surveyors and much time. Additionally, no accurate and reliable information exists on the spatial variability of superface soil parameters in order to predict the soil loss by different models (RUSLE, PISAC, EUPOSEM, MORGAN). Also information on planning and management activities...

2015
K. M. Whisler H. I. Rowe J. S. Dukes

Accumulation of soil carbon (C) in ecosystems could help mitigate climate change, particularly in agricultural landscapes, but accumulation rates are thought to depend on land cover and management practices. To uncover relationships between soil properties and vegetation management strategies in the Midwestern USA, we examined soil C and nitrogen (N) content on lands under five management types...

2015
Florentin Constancias Nicolas P A Saby Sébastien Terrat Samuel Dequiedt Wallid Horrigue Virginie Nowak Jean-Philippe Guillemin Luc Biju-Duval Nicolas Chemidlin Prévost-Bouré Lionel Ranjard

Even though recent studies have clarified the influence and hierarchy of environmental filters on bacterial community structure, those constraining bacterial populations variations remain unclear. In consequence, our ability to understand to ecological attributes of soil bacteria and to predict microbial community response to environmental stress is therefore limited. Here, we characterized the...

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