نتایج جستجو برای: soil climate

تعداد نتایج: 338202  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید چمران اهواز - دانشکده مهندسی علوم آب 1393

drought is transient phenomenon , slow , repetitive and integral part of the climate of each region. drought begins with a substantial reduction in precipitation over the long-term average rainfall and over time, reduced soil moisture and surface and ground water resources will continue to decrease. this phenomenon is the most important in bakhtegan basin because of its importance in strategic ...

Journal: :Ecology 2010
Paul Kardol Melissa A Cregger Courtney E Campany Aimee T Classen

Feedbacks of terrestrial ecosystems to atmospheric and climate change depend on soil ecosystem dynamics. Soil ecosystems can directly and indirectly respond to climate change. For example, warming directly alters microbial communities by increasing their activity. Climate change may also alter plant community composition, thus indirectly altering the soil communities that depend on their inputs...

Journal: :آب و خاک 0
علی اکبر سبزی پرور حمید زارع ابیانه مریم بیات ورکشی

abstract soil temperature is one of the key parameters affecting most hydrologic and agricultural processes. therefore, its measurement and prediction is very crucial. so far, the statistical regression methods have been used for estimation of soil temperature for specific location encountering with lack or shortage of data. in this work, soil temperature data are estimated at six different dep...

2009
Jenny C. Ordoñez Peter M. van Bodegom Jan-Philip M. Witte Ian J. Wright Peter B. Reich Rien Aerts

Aim This first global quantification of the relationship between leaf traits and soil nutrient fertility reflects the trade-off between growth and nutrient conservation. The power of soils versus climate in predicting leaf trait values is assessed in bivariate and multivariate analyses and is compared with the distribution of growth forms (as a discrete classification of vegetation) across grad...

2017
Noémie Gaudio Salim Belyazid Xavier Gendre Arnaud Mansat Manuel Nicolas Simon Rizzetto Harald Sverdrup Anne Probst

Atmospheric N deposition is known to severely impact forest ecosystem functioning by influencing soil biogeochemistry and nutrient balance, and consequently tree growth and overall forest health and biodiversity. Moreover, because climate greatly influences soil processes, climate change and atmospheric N deposition must both be taken into account when analysing the evolution of forest ecosyste...

Journal: :Ecology 2007
Mirka Macel Clare S Lawson Simon R Mortimer Marie Smilauerova Armin Bischoff Lisèle Crémieux Jirí Dolezal Andrew R Edwards Vojtĕch Lanta T Martijn Bezemer Wim H Van der Putten José M Igual Claudino Rodriguez-Barrueco Heinz Müller-Schärer Thomas Steinger

Evolutionary theory suggests that divergent natural selection in heterogeneous environments can result in locally adapted plant genotypes. To understand local adaptation it is important to study the ecological factors responsible for divergent selection. At a continental scale, variation in climate can be important while at a local scale soil properties could also play a role. We designed an ex...

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...

2014
Gunnar Jungqvist Stephen K. Oni Claudia Teutschbein Martyn N. Futter

Complex non-linear relationships exist between air and soil temperature responses to climate change. Despite its influence on hydrological and biogeochemical processes, soil temperature has received less attention in climate impact studies. Here we present and apply an empirical soil temperature model to four forest sites along a climatic gradient of Sweden. Future air and soil temperature were...

2014
Miroslav Trnka Kurt Christian Kersebaum Josef Eitzinger Michael Hayes Petr Hlavinka Mark Svoboda Martin Dubrovský Daniela Semerádová Brian D. Wardlow Eduard Pokorný Martin Možný Zdeněk Žalud Brian Wardlow

This study aims to evaluate soil climate quantitatively under present and projected climatic conditions across Central Europe (12.1°–18.9° E and 46.8°–51.1° N) and the U.S. Central Plains (90°–104° W and 37°–49° N), with a special focus on soil temperature, hydric regime, drought risk and potential productivity (assessed as a period suitable for crop growth). The analysis was completed for the ...

Journal: :Applied and environmental microbiology 2015
Junpeng Rui Jiabao Li Shiping Wang Jiaxing An Wen-tso Liu Qiaoyan Lin Yunfeng Yang Zhili He Xiangzhen Li

The soil microbial community plays an important role in terrestrial carbon and nitrogen cycling. However, microbial responses to climate warming or cooling remain poorly understood, limiting our ability to predict the consequences of future climate changes. To address this issue, it is critical to identify microbes sensitive to climate change and key driving factors shifting microbial communiti...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید