نتایج جستجو برای: soil management

تعداد نتایج: 1014909  

Journal: :Environmental geochemistry and health 2004
B J Wienhold S S Andrews D L Karlen

An increasing human population is placing greater demand on soil resources, and as a result degradation is taking place in many regions of the world. This is critical because soils perform a number of essential processes including supporting food and fiber production, influencing air quality through interaction with the atmosphere, and serving as a medium for storage and purification of water. ...

2003
D. L. Karlen

Developing the concept of soil quality may help identify the soil and crop management practices required for environmentally, socially, and economically sustainable agriculture. Objectives of this paper are (1) to review current efforts to define soil quality, (2) to discuss factors and processes which influence soil quality, (3) to identify, soil and crop management practices that affect proce...

2016
Zhen Wang Lei Ji Xiangyang Hou Michael P. Schellenberg Xiujun Wang

Soil respiration, a major component of the global carbon cycle, is significantly influenced by land management practices. Grasslands are potentially a major sink for carbon, but can also be a source. Here, we investigated the potential effect of land management (grazing, clipping, and ungrazed enclosures) on soil respiration in the semiarid grassland of northern China. Our results showed the me...

2010
Koen Verbist Andrew W. Robertson Wim M. Cornelis

Seasonal predictability of daily rainfall characteristics in central1 northern Chile for dry-land management 2 3 4 5 Koen Verbist 6 International Centre for Eremology, Dep. Soil Management, Ghent University, Ghent, 7 Belgium 8 Water Centre for Arid Zones in Latin America and the Caribbean, La Serena, Chile 9 10 Andrew W. Robertson 11 International Research Institute for Climate and Society, Pal...

ژورنال: علوم آب و خاک 2012
فایز رئیسی, , مریم ریاحی, ,

Mountainous landscapes in Central Zagros are mainly used as grazing rangelands to feed animals and are heavily degraded. Overgrazing may impose a negative effect on rangeland productivity and sustainability through significant changes in soil properties. Soil nitrogen (N) mineralization is one of the key biological processes that might be affected by biotic and abiotic factors including range g...

2018
Bence Mátyás Maritza Elizabeth Chiluisa Andrade Nora Carmen Yandun Chida Carina Maribel Taipe Velasco Denisse Estefania Gavilanes Morales Gisella Nicole Miño Montero Lenin Javier Ramirez Cando Ronnie Xavier Lizano Acevedo

Soil management has great potential to affect soil respiration. In this study, we investigated the effects of organic versus conventional soil management on soil respiration.  We measured the main soil physical-chemical properties from conventional and organic managed soil in Ecuador. Soil respiration was determined using alkaline absorption according to Witkamp.  Soil properties such as organi...

Journal: :journal of agricultural science and technology 0
l. b. silvestro laboratory of functional biology and biotechnology (biolab-inbiotec-conicet-cic), national university of the center of the province of buenos aires, argentina. f. biganzoli department of quantitative methods and information systems, faculty of agronomy, university of buenos aires, argentina. h. forjn barrow-inta experimental station, tres arroyos, province of buenos aires, argentina. a. albanesi chair in microbiology and ecology, agricultural faya national university of santiago del estero, argentina. a. m. arambarri spegazzini institute, fcnym, national university of la plata, argentina. l. manso barrow-inta experimental station, tres arroyos, province of buenos aires, argentina. m. v. moreno

zero tillage practices have a direct effect on soil microbial communities modifying soil productivity and sustainability. the crop sequences used can change the aforementioned properties, too. in this study, we evaluated the effect of crop sequences under zero tillage management on soil biological and chemical properties including vertical distribution of soil organic carbon, soil basal respira...

2011
Xiaoli Cheng Yiqi Luo Bo Su Shiqiang Wan Dafeng Hui Quanfa Zhang

Aims Land use management affects plant carbon (C) supply and soil environments and hence alters soil nitrogen (N) dynamics, with consequent feedbacks to terrestrial ecosystem productivity. The objective of this study was to better identify mechanisms by which land-use management (clipping and shading) regulates soil N in a tallgrass prairie, OK, USA. Methods We conducted 1-year clipping and sha...

E. BIJANZADEH M. MOKARRAM R. NADERI

ABSTRACT- The information on the spatial properties of soil is vital to improve soil management and to increase the crop productivity. Geostatistical analysis technique is one of the most important methods for determining the spatial properties of soil. The aim of this study was to investigate spatial variability of soil chemical and physical attributes for field management in eastern Shiraz, I...

2014
Jian Sun Xiaodan Wang Genwei Cheng Jianbo Wu Jiangtao Hong Shuli Niu Cheng-Sen Li

Understanding the impact of grazing intensity on grassland production and soil fertility is of fundamental importance for grassland conservation and management. We thus compared three types of alpine steppe management by studying vegetation traits and soil properties in response to three levels of grazing pressure: permanent grazing (M1), seasonal grazing (M2), and grazing exclusion (M3) in the...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید