نتایج جستجو برای: extent of irrigated lands
تعداد نتایج: 21166871 فیلتر نتایج به سال:
When urban areas expand without concomitant increases in wastewater treatment capacity, vast quantities of wastewater are released to surface waters with little or no treatment. Downstream of many urban areas are large areas of irrigated croplands reliant on these same surface water sources. Case studies document the widespread use of untreated wastewater in irrigated agriculture, but due to th...
Salinization of land poses a serious threat and harms all industries, including the environment, agriculture, economy, so on. In this regard, topic is very relevant today. The object research agriculture Republic Uzbekistan. aim study impact saline soils on in current state reclamation systems, processes soil salinization quality irrigation water, as well features manifestation secondary irriga...
GRACEnet (greenhouse gas reduction through agricultural carbon enhancement network) is a new research program initiated by the Agricultural Research Service (ARS) of the United States Department of Agriculture (USDA). The primary objectives of GRACEnet are to identify and develop agricultural strategies that will enhance soil C sequestration and reduce greenhouse gas emissions and to provide a ...
land use change may influence many natural phenomena and ecological processes, including runoff, soil erosion, sedimentation and soil conditions. decreasing of forest area in the north of iran is one of the critical problems in recent years. the aims of this study are to detect land use changes between 1967 to 2002 using satellite images of land sat 7 etm+ (2002), aerial photos and digital topo...
Reclamation of Arid LandsIt is our pleasure to inform you that Springer International Publisher (2017) has published a book entitled "Reclamation of Arid Lands" in English.This book is the result of joint collaboration between the University of Tehran, University of Kashan and Research Institute of Forests and Rangelands, whose authors are as follows:Mohammad Jafari: Professor, Faculty of Natur...
Aim: Long-term use of sewage-sludge and improper management agricultural lands can lead to an elevated heavy metal concentration in the soil resulting barren soil. The present investigation was carried out study influence different characteristics on enrichment Cd, Cr Pb their detoxification strategies sewage irrigated profiles Prayagraj region, India. Methodology: Di-acid mixture method used f...
Face clustering is a task to partition facial images into disjoint clusters. In this paper, we investigate a specific problem of face clustering in videos. Unlike traditional face clustering problem with a given collection of images from multiple sources, our task deals with set of face tracks with information about frame ID. Thus, we can exploit two kinds of prior knowledge about the temporal ...
Gameplay in real-time strategy games seems somehow to be confined to a de facto standard where economical micromanagement is equally important as combat strategy, if not more important. To enable stronger combat-oriented gameplay without sacrificing other key aspects of the genre, we propose an automated system for scheduling unit training, which we believe may allow the exploration of new para...
Irrigation has become very critical in acquiring an all year round crop production. The aim of the research work was to assess irrigation water quality and selected soil parameters at Mankessim scheme, which is used irrigate types crops within its environs. data study collected from two sources, samples. Water samples were three different surface sources scheme for both dry wet seasons. Nine (9...
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