نتایج جستجو برای: extent of irrigated lands
تعداد نتایج: 21166871 فیلتر نتایج به سال:
Quantifying the effect of non-point source pollution from different land use types (e.g., agricultural lands, pastures, orchards, and urban areas) on stream water quality is critical in determining extent type use. The relationship between surface as primary drinking patterns suburban areas with an accelerated pace industrial development progressive growth population has drawn much attention re...
Food colors are considered the most important component of foodstuff for enhancing aesthetic appeal products. The rapid increase in population raised demand food materials, while wastewater from as-related processing industries is used irrigation. This study was conducted to examine genotoxicity industrial on plant growth-promoting rhizobacteria (PGPR). Three predominantly synthetic colors, inc...
Water managers need map of irrigated areas (defined as the identification of their location and their areal extent) to plan a rational use of water under limited availability and to prevent the unauthorized withdrawals. Many authors have shown that the Earth Observation techniques are an effective tool for mapping irrigated areas worldwide at different spatial scales (global/regional/and local)...
Understanding the influence of past land use changes on climate is needed to improve regional projections of future climate change and inform debates about the tradeoffs associated with land use decisions. The effects of rapid expansion of irrigated area in the 20th century has remained unclear relative to other land use changes, such as urbanization, that affected a similar total land area. Us...
Saline soils occupy about 7% of the earth land surface, an extent portion of such soil are not arable due to very high level of salinity. The objectives of this study were to obtain information about the effect of salt content of irrigated water on growth, anatomical changes and alkaloid production in pomegranate trees. The result reported that, salinity of the irrigated water, with 800, 1200, ...
Drought is one of the most complex and threatening disasters, defined as a period drier-than-normal conditions which results in water-related problems. In addition to climate variation, human activities can cause or intensify drought through groundwater overextraction, unsupervised expansion agricultural lands, etc. One prime example such has been observed Zayandehrud River basin central Iran. ...
The objective of this work is to carry out a comparative study between irrigated and rain-fed olive farms in arid area, Zarzis belonging Southern Tunisia. In order achieve objective, survey was carried on nearly 30 farms: 13 are the lands 17 dry areas. As first step, we proceeded through socio-economic, technical environmental assessment determine characteristics each type farms. second part, t...
The aim of this study is to determine the factors affecting purchase or sale agricultural lands in certain neighborhoods Dulkadiroğlu district Kahramanmaraş province and degree influence these factors. For this, a was conducted by obtaining data from parcel owners determined neighborhoods. As result obtained land areas with help questionnaire, model established about that affect lands, what kin...
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