+ Site Statistics
+ Resolve Accession
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
Submit PDF Full TextSubmit PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Les etats de surface en zone aride a partir d'indices radiometriques et de classifications multitemporelles d'images Landsat TM prises sur la region de Menzel Habib (Tunisie meridionale)

, : Les etats de surface en zone aride a partir d'indices radiometriques et de classifications multitemporelles d'images Landsat TM prises sur la region de Menzel Habib (Tunisie meridionale). Secheresse (Montrouge) 18(4): 305-313

The surveillance of environmental degradation is inevitably based on diachronic studies aimed at detecting the physical and biological changes affecting the components of landscapes. The degradation of landscapes, and conversely their restoration, is reflected on the ground by modification of soil surface components including vegetation. The main objective of this article is to understand both the surface state structure and the dynamics of this process. Such knowledge will help in predicting their evolution. In this context, a methodology based on radiometric indicators was developed. These indicators have shown that they are closely correlated to three radiometric indexes related to general reflectance, chlorophyllian activity and soil colour. The primary treatments carried out with the methodology developed used a series of Landsat TM images. A plan for classifying the changes was then elaborated in order to follow the dynamics of these Sur (ace states as accurately as possible. The application of this methodology to the whole region of Menzel Habib (Southern Tunisia) helped in apprehending the changes of the landscape in relationship to climatic events and population practices as well as in characterizing the capacity of environmental response.

(PDF 0-2 workdays service)

Order PDF Full Text


Click here to order any other PDF Full Text

Accession: 022950072

PDF Full Text: Submit

Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:

Other references

Larski, Zdzielaw, 1966: Preparations inhibiting the growth of virus infection. Med Weter 22(1): 10-13

Liu, Z.; Inokuma, K.; Ho, S-Hsin.; Haan, R.den.; Hasunuma, T.; van Zyl, W.H.; Kondo, A., 2015: Combined cell-surface display- and secretion-based strategies for production of cellulosic ethanol with Saccharomyces cerevisiae. Engineering Saccharomyces cerevisiae to produce heterologous cellulases is considered as a promising strategy for production of bioethanol from lignocellulose. The production of cellulase is usually pursued by one of the two strategies: displaying...

Gaur, A.; Misra, K., 1970: Effects of insecticides on soil micro-organisms. Pesticides 4 (5) 24-27

Saxena, S. C.; Bhatnagar, P., 1980: Histopathological & biochemical changes in panoistic ovary of chemosterilized cockroach Periplaneta americana (L.). In laboratory studies in India, injecting effective doses of hempa (3 ml of a 3% solution/insect), thiotepa (5 mu g/insect) and bis(dimethylamino)dithiazolium chloride (6 mu g/insect) into virgin females of Periplaneta americana (L.) caused degene...

Schmitt, R.; Westhoff-Bleck, M.; Haller, H.; Wagner, A.D., 2012: Paradoxical renal embolism in a patient with congenital cardiac malformation. Qjm 104(10): 885-887

Grebmer,K.von; Fritschel,H.; Nestorova,B.; Olofinbiyi,T.; Pandya-Lorch,R.; Yohannes,Y., 2008: The challenge of hunger the 2008 Global Hunger Index. This article discusses the Global Hunger Index (GHI) which is a tool developed by the International Food Policy Research Institute for regularly tracking the state of global hunger and malnutrition. However, this year's index reflects data un...

Baer, M.; Mäki, M.; Nurminen, J.; Turjanmaa, V.; Pukander, J.; Vesikari, T., 1986: Esophagitis and findings of long-term esophageal pH recording in children with repeated lower respiratory tract symptoms. Esophagoscopy was performed on 116 children with recurrent lower respiratory tract symptoms; esophagitis of various degrees was detected in 45% of the cases. The presence of verified esophagitis correlated with endoscopic findings of bile-stained...

Abad, M.-Jose; Bermejo, P.; Villar, A., 1995: The activity of flavonoids extracted from Tanacetum microphyllum DC. (Compositae) on soybean lipoxygenase and prostaglandin synthetase. 1. The in vitro effects of centaureidin and 5,3'-dihydroxy-4'-methoxy-7-carbomethoxyflavonol (Fig. 1), two anti-inflammatory flavonoids extracted from Tanacetum microphyllum DC., have been examined on both cyclooxygenase and lipoxygenase...

Jasinska, A.; Kim, J.J.lie; Fazleabas, A.T., 2002: Induction of insulin-like growth factor-binding protein-1 in baboon endometrial stromal cells by cells of embryonic origin. Biology of Reproduction 66(Supplement 1): 116-117

GOBEL, F.M., 1955: Dystrophy and wound healing. Langenbecks Archiv für Klinische Chirurgie ... Vereinigt Mit Deutsche Zeitschrift für Chirurgie 282: 147-150