نتایج جستجو برای: anthropogenic activities

تعداد نتایج: 397759  

2012
YADU POKHREL NAOTA HANASAKI SUJAN KOIRALA JAEIL CHO PAT J.-F. YEH HYUNGJUN KIM SHINJIRO KANAE TAIKAN OKI

Anthropogenic activities have been significantly perturbing global freshwater flows and groundwater reserves. Despite numerous advances in the development of land surface models (LSMs) and global terrestrial hydrological models (GHMs), relatively few studies have attempted to simulate the impacts of anthropogenic activities on the terrestrial water cycle using the framework of LSMs. From the co...

The study was conducted to assess the native and alien plant species in one of the highly disturbed forest (S1) and less disturbed forest (S2) in Mt. Manunggal, Cebu Island, Philippines. Twenty-four quadrats with a size of 20mx20 m were established using a quadrat sampling technique to identify and record all plant species. Diversity indices were utilized to determine species abundance, richnes...

Journal: :Faraday discussions 2017
Barbara J Finlayson-Pitts

The term "Anthropocene" was coined by Professor Paul Crutzen in 2000 to describe an unprecedented era in which anthropogenic activities are impacting planet Earth on a global scale. Greatly increased emissions into the atmosphere, reflecting the advent of the Industrial Revolution, have caused significant changes in both the lower and upper atmosphere. Atmospheric reactions of the anthropogenic...

Bakand, Shahnaz, Ghazi Khansari, MMahmood, Koohi, Mohammad Kazem, Menhaje-Bena, Rabee, Modabberi, Soroush,

Introduction: Particulate matter (PM) is known as the most common cause of air pollution in the world. Activities of sand quarries are known as one of the emission sources in Tehran. This study aimed at investigating the geological and environmental factors of airborne particles in an active quarry in the west of Tehran. Material and Methods: Three methods of dust sampling were used. totally, ...

2011
N. D’Cruze S. Kumar Christopher Raxworthy

Madagascar is a biodiversity hotspot threatened by habitat loss, which is detrimental to the future survival of forest-dwelling herpetofauna. For conservation purposes, it is essential to determine how species respond to different types of anthropogenic habitat alteration. We conducted standardized field surveys (a variation of visual encounter survey) to assess species richness, abundance and ...

2004
Markus Amann Chris Heyes Wolfgang Schöpp Reinhard Mechler

Anthropogenic activities such as energy consumption, industrial activities and agriculture are major driving forces of emissions of air pollutants. Their future development has a strong influence on the level of future emissions and on the potential and costs for maintaining emissions at environmentally acceptable levels. Unfortunately, it is an ambitious task to accurately model the future dev...

Journal: :Journal of Applied Sciences and Environmental Management 2015

Heavy metal concentration in the soils and sediments has increased worldwide during the last century due to the mining, smelting, and industrial activities. The Forumad chromite deposit is located in the Sabzevar ophiolitic complex (SOC), with a long history of mining activities, yet very little is known about the heavy metal contamination in its surrounding environment. In this research work, ...

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