نتایج جستجو برای: water environmental capacity

تعداد نتایج: 1120906  

Journal: :علوم گیاهان زراعی ایران 0
حمیدرضا بلوچی سید علی محمد مدرس ثانوی یحیی امام

drought, ultraviolet radiation and atmospheric co2 are some three environmental factors that seriously affect future food security. the objective followed in the present research was to study the effect of two levels of carbon dioxide (400 and 900 ppm), ultraviolet radiation (uv a, b and c with intensities of 18, 25 and 40 microw.cm-2 respectively) and water deficit (%100 and %60 of field capac...

Journal: :Water 2022

In order to promote the sustainable development of a social economy and ecology, social–economic–natural compound ecosystem (SENCE) conceptual framework was used construct water environmental carrying capacity index system. Taking Gansu section Yellow River basin as an example, 18 indexes were selected from 3 subsystems social, economic, natural ecology. Based on unascertained measure theory ob...

2011
S. K. Behera S. Y. Oh H. S. Park

Pharmaceuticals have gained significant attention in recent years due to the environmental risks posed by their versatile application and occurrence in the natural aquatic environment. The transportation and distribution of pharmaceuticals in the environmental media mainly depends on their sorption behavior in soils, sediment–water systems and waste water treatment plants, which varies widely a...

Journal: :Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan 2020

Journal: :Annali di igiene : medicina preventiva e di comunita 2015
O De Giglio A Quaranta G Barbuti C Napoli G Caggiano M T Montagna

The safety of groundwater resources is a serious issue, particularly when these resources are the main source of water for drinking, irrigation and industrial use in coastal areas. In Italy, 85% of the water used by the public is of underground origin. The aim of this report is to analyze the main factors that make groundwater vulnerable. Soil characteristics and filtration capacity can promote...

2017
Norman W H Mason David J Palmer Alvaro Romera Deanne Waugh Paul L Mudge

Agricultural production systems face increasing threats from more frequent and extreme weather fluctuations associated with global climate change. While there is mounting evidence that increased plant community diversity can reduce the variability of ecosystem functions (such as primary productivity) in the face of environmental fluctuation, there has been little work testing whether this is tr...

2009
Peng Jiang Hongbo Xia Zhiye He Zheming Wang

A water environmental monitoring system based on a wireless sensor network is proposed. It consists of three parts: data monitoring nodes, data base station and remote monitoring center. This system is suitable for the complex and large-scale water environment monitoring, such as for reservoirs, lakes, rivers, swamps, and shallow or deep groundwaters. This paper is devoted to the explanation an...

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2003
Susana Sangiao-Alvarellos Raúl Laiz-Carrión José M Guzmán Mariá P Martin del Río Jesús M Miguez Juan M Mancera José L Soengas

The impact of different environmental salinities on the energy metabolism of gills, kidney, liver, and brain was assessed in gilthead sea bream (Sparus aurata) acclimated to brackish water [BW, 12 parts/thousand (ppt)], seawater (SW, 38 ppt) and hyper saline water (HSW, 55 ppt) for 14 days. Plasma osmolality and levels of sodium and chloride presented a clear direct relationship with environmen...

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