نتایج جستجو برای: soil sciences

تعداد نتایج: 320052  

2001
Yvon Chatelin

This chapter is a précis of the authors‘ Stratégies Scientifiques et Développement: Sols et Agriculture des Régions Chaudes (Paris: ORSTOM Editions, 1988). IFRSDC is a division of the Office de la Recherche Scientifique et Technique Outre-mer (ORSTOM). l . For a global introduction to bibliometrics, see J. P. Courtial. Introduction ci la Scientométrie (paris: Anthropos, 1990). 2. The first bibl...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده کشاورزی 1387

ضایعات پلیمری لاستیکهای فرسوده خودروها یکی از آلوده کننده های محیط زیست محسوب می شوند. تولید روز افزون این ضایعات سبب شده است تا راههای کاهش اثرهای مضر ناشی از تجمع آنها در محیط زیست نیز پر رنگ تر شود. دراین پژوهش اثرات مخلوط ذرات خرد شده لاستیک های فرسوده با خاک بر شاخص های کیفیت خاک سنجیده شده است. این پژوهش در مزرعه تحقیقاتی دانشگاه صنعتی اصفهان (لورک) با خاک فاین- لومی، میکسد، ترمیک، تیپیک،...

2006
Larry P. Wilding Henry Lin

The visions, directions, and images of soil science are changing. Historically, soil science has followed a circuitous path in its evolution from a discipline with foundational roots in geology, to an applied agricultural and environmental discipline, and now to a bioand geo-science through the Earth’s Critical Zone investigations. This closes the loop or spiral, but along the way, soil science...

2017
Nigel Dudley Simon J. Attwood Dave Goulson Devra Jarvis Zareen Pervez Bharucha Jules Pretty

a School of Geography, Planning and Environmental Management, University of Queensland, Brisbane, QLD 4072, Australia b Equilibrium Research, 47 The Quays, Cumberland Road, Bristol BS1 6UQ, UK c Bioversity International, Via dei Tre Denari 472/a, 00057, Maccarese (Fiumicino), Rome, Italy d School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, UK e School of Life Sciences...

2005
Karl Havens Mike Allen Mark Clark Dale Gawlik

Karl Havens (Panel Chair), Department of Fisheries and Aquatic Sciences, University of Florida Mike Allen, Department of Fisheries and Aquatic Sciences, University of Florida Mark Clark, Department of Soil and Water Sciences, University of Florida Dale Gawlik, Department of Biological Sciences, Florida Atlantic University James Gore, Department of Environmental Science, Policy and Geography, Un...

2015
Wenming Bai Dali Guo Qiuying Tian Nana Liu Weixin Cheng Linghao Li Wen-Hao Zhang

Wenming Bai*, Dali Guo, Qiuying Tian, Nana Liu, Weixin Cheng, Linghao Li and Wen-Hao Zhang* State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, the Chinese Academy of Sciences, Beijing, China; Key Laboratory of Ecosystem Network Observation and Modeling, Synthesis Research Center of Chinese Ecosystem Research Network, Institute of Geographic Sciences and Natural Re...

2013
Zhenong Jin Qianlai Zhuang Jin-Sheng He Tianxiang Luo Yue Shi

Phenology is critical to ecosystem carbon quantification, and yet has not been well modeled considering both aboveground and belowground environmental variables. This is especially true for alpine and pan-arctic regions where soil physical conditions play a significant role in determining the timing of phenology. Here we examine how the spatiotemporal pattern of satellite-derived phenology is r...

1985
A. Longobardi

Introduction Conclusions References Tables Figures ◭ ◮ ◭ ◮ Back Close Full Screen / Esc Papers published in Hydrology and Earth System Sciences Discussions are under open-access review for the journal Hydrology and Earth System Sciences Abstract Introduction Conclusions References Tables Figures ◭ ◮ ◭ ◮ Back Close Full Screen / Esc Abstract The paper focuses on the observation of interannual an...

2007
M. López-Vicente

Papers published in Hydrology and Earth System Sciences Discussions are under open-access review for the journal Hydrology and Earth System Sciences Abstract The Mediterranean environment is characterized by strong temporal variations in rainfall volume and intensity, soil moisture and vegetation cover along the year. These factors play a key role on soil erosion. The aim of this work is to ide...

2004
M. T. Humphreys W. R. Raun K. L. Martin K. W. Freeman G. V. Johnson M. L. Stone

A system of midseason prediction of winter wheat grain yield based on sensed plant growth properties has been established. However, little research has been conducted to determine the relationship of grain yield, sensed plant data, and soil electrical conductivity (EC). This study was carried out to determine if soil EC could be useful in better predicting wheat grain yield. During 2001 and 200...

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