نتایج جستجو برای: land quality

تعداد نتایج: 860420  

Journal: :Journal of environmental quality 2002
Jerry A Griffith Edward A Martinko Jerry L Whistler Kevin P Price

We explored relationships of water quality parameters with landscape pattern metrics (LPMs), land use-land cover (LULC) proportions, and the advanced very high resolution radiometer (AVHRR) normalized difference vegetation index (NDVI) or NDVI-derived metrics. Stream sites (271) in Nebraska, Kansas, and Missouri were sampled for water quality parameters, the index of biotic integrity, and a hab...

2009
Erhan Alparslan H. Gonca Coskun Ugur Alganci

This study focuses on the analysis of the Landsat-5 TM + SPOT-Pan (1992), IRS-1C/D LISS + Pan (2000), and Landsat-5 TM (2006) satellite images that reflect the drastic land use/land cover changes in the Küçükçekmece Lake region, Istanbul. Landsat-5 TM satellite data dated 2006 was used for mapping water quality. A multiple regression analysis was carried out between the unitless planetary refle...

Journal: :Environmental management 2010
Rong Mao De-Hui Zeng

Afforestation of agricultural lands has been one of the major land use changes in China in recent decades. To better understand the effect of such land use change on soil quality, we investigated selected soil physical, chemical and microbial properties (0-15 cm depth) in marginal agricultural land and a chronosequence of poplar (Populus euramericana cv. 'N3016') plantations (5-, 10-, 15- and 2...

2016
Thi Minh Khue NGUYEN Thi Dien NGUYEN Philippe LEBAILLY

Since 1990s the bloom of industrialization and urbanization brings the changes of social and economic issue of Vietnam rural areas. During this process, rural households have reduced agricultural land for cultivating. From the status of food producers now they become food consumers. Through surveying 215 households in Bac Ninh province, the study shows that that industrialization and land conve...

2016
Yi Wang Bin He Weili Duan Weihong Li Pingping Luo Bam H. N. Razafindrabe Jun Xu

In this study, in order to determine the efficiency of estimating annual water pollution loads from remote-sensed land cover classification and ground-observed hydrological data, an empirical model was investigated. Remote sensing data imagery from National Oceanic and Atmospheric Administration (NOAA) Advanced Very High Resolution Radiometer were applied to an 11 year (1994–2004) water quality...

2016
Chun Zhao Maoyi Huang Jerome D. Fast Larry K. Berg Yun Qian Alex Guenther Dasa Gu Manish Shrivastava Ying Liu Stacy Walters Gabriele Pfister Jiming Jin John E. Shilling Carsten Warneke

Current climate models still have large uncertainties in estimating biogenic trace gases, which can significantly affect atmospheric chemistry and secondary aerosol formation that ultimately influences air quality and aerosol radiative forcing. These uncertainties result from many factors, including uncertainties in land surface processes and specification of vegetation types, both of which can...

2001
Sumeeta Srinivasan

Cities in developing countries like India are facing some of the same concerns that North American cities are: congestion and urban growth. However, the concern in cities like New Delhi, India is that this growth is far more rapid as both urbanization and motorization are ongoing processes that have not yet peaked. Furthermore air quality in major Indian cities is now becoming a major concern w...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان - دانشکده مدیریت و اقتصاد 1392

these days, all department stores make an effort to provide their clients with valuable products in order to project the best image for them. as a result, clients’ comprehension risk will decrease and they will be more willing to repurchase. having a good image is really important for the department stores because it makes an impression on clients’ comprehension of both quality and risk. consid...

Aazami, Jaber, Abdolahi, Zahra, Jafari, Naser, KianiMehr, Naser, Zamani, Abasali, Zarein, Mohammad,

Background: Unsustainable development of agriculture and aquaculture has reduced the water quality of rivers. The most important aim of this study is assessing of water quality in the Ghezel Özan basin in Zanjan province. Method: 18 sites were selected based on standard criteria including land use, geology, biodiversity points, accessibility and standard distributions. Content of Dissolved Oxyg...

2015
Vincent Martinet

Biofuel policies (blend mandate or tax credit) have impacts on food and energy prices, and on land-use. The magnitude of these effects depends on the market response to price, and thus on the agricultural supply curve, which, in turn, depends on the land availability (quantity and agronomic quality) and relative prices. To understand these relationships, we develop a theoretical framework with ...

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