نتایج جستجو برای: extent of irrigated lands

تعداد نتایج: 21166871  

Journal: :Journal of Natural Sciences Research 2021

Soil salinity/sodicity is the major problem in irrigated and rain-fed areas are a continuous threat for sustainability of agricultural production. The presence salt affected soils has been identified as process land degradation greatest cause declining productivity by causing detrimental effect on biological, physical chemical properties soil system. Therefore, objective this topic to review im...

2012
Jonathan R. B. Fisher Benjamin Dills

BACKGROUND Private land conservation is an essential strategy for biodiversity protection in the USA, where half of the federally listed species have at least 80% of their habitat on private lands. We investigated the alignment between private land protection conducted by the world's largest land trust (The Nature Conservancy) and the science driven identification of priority areas for conserva...

Journal: :E3S web of conferences 2023

Salinity problems reduce productivity on both irrigated and non-irrigated agricultural lands. Saline soils occur in arid semi-arid regions where rainfall is insufficient to meet the crops’ water requirements leach mineral salts out of root-zone. Compost can play an important role managing, mitigating, improving soil salinity negative effects. In this work, compost effects salt affected were stu...

2005
Scott L. Stephens

Nationally, the causes and extent of fire on lands administrated by the United States Forest Service varied significantly from 1940 to 2000, with California experiencing the largest relative annual burned areas.The south-east and California experienced the largest relative area burned by fires from human ignitions. No significant differences were detected in the relative area burned by lightnin...

Journal: :Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü dergisi 2021

Global scale changes in land use affect biodiversity, global climate, and ecosystem services. Integrating a local regional service approach into plans policies levels is essential for sustainable management. In this study, use/land cover differences Adana-Karaisali district of Turkey were investigated using Normalized Difference Vegetation Index (NDVI). Landsat satellite images the area from 20...

Journal: :Entropy 2017
Rajchandar Padmanaban Avit K. Bhowmik Pedro Cabral Alexander Zamyatin Oraib Almegdadi Shuangao Wang

Urban sprawl (US), propelled by rapid population growth leads to the shrinkage of productive agricultural lands and pristine forests in the suburban areas and, in turn, adversely affects the provision of ecosystem services. The quantification of US is thus crucial for effective urban planning and environmental management. Like many megacities in fast growing developing countries, Chennai, the c...

Journal: :Agronomy 2021

This paper concerns an old soils report produced using agronomical approach. The territory studied spans continuous parts of Spain’s Huesca and Zaragoza provinces includes the Violada area. Spanish Ministry Agriculture collected data from 1975 to 1978 through its now-defunct agency, National Institute for Agrarian Reform Development (IRYDA), which was in charge irrigation works Spain. surface a...

2008
Y. Q. Wang Z. Wu H. Zhang

The challenges of managing natural resources of protected areas not only come from the inside of the protected boundaries, but also from the surrounding territories because most of protected lands are open systems that face threats from adjacent areas. The lands of such open systems alter water quality and flow regimes, increase the likelihood of invasive plant and animal range expansions, redu...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم تربیتی و روانشناسی 1391

abstract prediction of death anxiety on the basis of demographic characteristics and sp پیش بینی اضطراب مرگ براساس ویژگی های دموگرافیک و مولفه های معنویت در سالمندان به کوشش الهام حسن زهی معنویت از جمله مفاهیمی است که سالیان متمادی در حوزه روان شناسی جایگاه خود را یافته است پیشینه پژوهش نشان داده است که با متغیرهای فراوانی در روانشناسی در ارتباط بوده است. هدف از پژوهش حاضر این اس...

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