نتایج جستجو برای: vegetation rehabilitation

تعداد نتایج: 116001  

Journal: :Acta Amazonica 2023

ABSTRACT The peculiar characteristics of mining waste substrates represent a significant challenge for environmental rehabilitation. Here, we evaluated the revegetation potential Paspalum cinerascens on from areas Serra dos Carajás, region harboring large mine complex in eastern Brazilian Amazon. is native grass widely distributed canga ecosystem, vegetation type covering iron ore reserves. See...

Journal: :Remote Sensing Applications: Society and Environment 2021

Quantifying the response of vegetation cover change (VCC) to climatic variables is a gap that mandatory for conservation and rehabilitation natural landscapes ensure sustainability. Based on temperature rainfall data, Normalized Difference Vegetation Index (NDVI) dataset, district statistical we investigated spatiotemporal variations temperature, rainfall, urban land, VCC in all suburban areas ...

, ,

Gully erosion is one of the most significant erosion types. This type of erosion is one of the most important sources of sediment in different regions of the world. Gullies often have different dimensions and complex characteristics and these characteristics may affect the distribution of vegetation. Topographic characteristics of gullies provide complex ecosystem for vegetation establishment. ...

2010
A. Ono K. Kajiwara Y. Honda

For the analysis of vegetation areas using satellites, a variety of vegetation indexes such as NDVI and EVI have been developed. However, most indexes have weak response to grasping the type and quality (the growth state and situation) of vegetation. To grasp these vegetation characteristics, we have developed new vegetation indexes, i.e. shadow index (SI) and water stress trend (WST). We estim...

2012
Hoshin V. Gupta Martyn P. Clark Jasper A. Vrugt Gab Abramowitz Ming Ye

[1] The past decade has seen significant progress in characterizing uncertainty in environmental systems models, through statistical treatment of incomplete knowledge regarding parameters, model structure, and observational data. Attention has now turned to the issue of model structural adequacy (MSA, a term we prefer over model structure “error”). In reviewing philosophical perspectives from t...

2004
David Lusseau M.E.J. Newman

Techniques recently developed for the analysis of human social networks are applied to the social network of bottlenose dolphins living in Doubtful Sound, New Zealand. We identify communities and subcommunities within the dolphin population and present evidence that sexand age-related homophily play a role in the formation of clusters of preferred companionship. We also identify brokers who act...

Journal: :Remote Sensing 2011
Rim Amri Mehrez Zribi Zohra Lili-Chabaane Benoît Duchemin Claire Gruhier Abdelghani G. Chehbouni

The analysis of vegetation dynamics is essential in semi-arid regions, in particular because of the frequent occurrence of long periods of drought. In this paper, multi-temporal series of the Normalized Difference of Vegetation Index (NDVI), derived from SPOT-VEGETATION satellite data between September 1998 and June 2010, were used to analyze the vegetation dynamics over the semi-arid central r...

2007
Marilyn D. Walker Donald A. Walker Kaye R. Everett Susan K. Short MARILYN D. WALKER

The hypothesized presence of large regions of grass and forb-dominated "steppe tundra" across Alaska and Siberia during the Pleistocene glacial epochs has led to a search for modern analogs. Evidence is presented for the presence of steppe vegetation on south-facing slopes and summits of pingos within the central Arctic Coastal Plain of Alaska. Vegetation, floristics, soils, and climatic factor...

2016
Erwan Motte Mehrez Zribi Pascal Fanise Alejandro Egido José Darrozes Amen Al-Yaari Nicolas Baghdadi Frédéric Baup Sylvia Dayau Rémy Fieuzal Pierre-Louis Frison Dominique Guyon Jean-Pierre Wigneron

Global Navigation Satellite System-Reflectometry (GNSS-R) has emerged as a remote sensing tool, which is complementary to traditional monostatic radars, for the retrieval of geophysical parameters related to surface properties. In the present paper, we describe a new polarimetric GNSS-R system, referred to as the GLObal navigation satellite system Reflectometry Instrument (GLORI), dedicated to ...

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
masoud ejlali dept. of prosthodontics, school of dentistry, shahid beheshti university of medical sciences, tehran, iran. leila moghadam dept. of prosthodontics, school of dentistry, shahid beheshti university of medical sciences, tehran, iran.

abstract facial defects not only impact on the function and quality of life but also affect the psychological well-being and social behavior of patients. a nasal prosthesis can re-establish the esthetics and anatomical contour in patients with mid-facial defects, often more effectively than surgical reconstruction. for successful results, many factors such as retention, texture, color match and...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید