Photonic crystals in biology - NanoTR-VI

0T0T0T0T AsPPPP werePoster Session, Thursday, June 17Theme F686 - N11232TStudy of Vegetation in Selected Area in South of Jeddah Provence12TUAreej Ali BaeshenUP P*1Department of Biology, Science college,- King Abdulaziz University, Jeddah, Saudi ArabiaAbstract-Saudi Arabia is covering a large area of the Arabian Peninsula which located in diverse terrain, multiple climatic conditions(Showdary and Aljwayed,1999). As for the soil in the Saudi arabia are regarded as young and immature or incomplete to lack of humidityand exposure to erosion (Abu Al-Fath, 1999).0T The study area lies south of Jeddah (Waziriya district). Located Jeddah on the Red Sea at thejunction of latitude 31 -21° North and longitude 4 - 39° East. (the General Presidency of Meteorology and Environmental Protection, 2004).0T2Study area in the southern city of Jeddah (Waziriya district) and we took 4 locations at random each covering 10 × 10 mP also taken 102small quadrates inside their respective area of 1 × 1 mP then we restricted the plant species and Tarpfha and calculate: density. frequencyand coverage and the importante value with a graphic representation of results.Species recorded in the study area 9 species shown inTable 1 were divided in 4 locations were randomly chosenin the region. The absolute density difference from theplant to another. Had the highest absolute density in theplant A.adscensionis,. And the highest density relative tothe same plant, in 0T 0Tlocation 1. In the locations (2.3,4) hadthe highest absolute and relative density of the plant Z.simplex.0TAl- Nafeil, Abdul Latif Hammoud. (2004). Geographic plant forSaudi Arabia. I 1. King Library Fahd National.0TRiyadh. Kingdom of Saudi Arabia. 659 p. 0T0TShowdary, Shaukat Ali and 0TAljwayed0T, Abdul Aziz al-Abbas.(1999). Vegetation of Saudi Arabia. National Center for Researchon Agriculture and Water, Ministry of Agriculture and Water,Kingdom of Saudi Arabia. 689 p.The highest value for the absolute frequency was in theplant A. adscensionis and plant Z. simplex value of 90% inlocation 1. And the highest value of the relative frequencyin the same plants. The highest values of the absolute andrelative coverage of the plant Z. simplex in all the selectedlocations, recorded the highest coverage in the location 2.0T0THigh water content of the soil in a depth of 30 cm from adepth of 10 cm and in all locations. The highest watercontent at the location (3) to a depth of 10 cm. 0T1TThat all the0T1Tlocation0T1Ts recorded values ranging from 7.6 - 8.3.1T.There are 9 plant species at selected area, rangingbetween grasses and shrubs. vegetation of the coastal plainand a little and limited to certain plant species with largeroot system which (Al-Nafei, 2004). A study of vegetationdifference in the values of the intensity, frequency andcoverage was recorded Z. simplex higher absolute andrelative density in most locations, which indicates theabundance of this type of plant in the study area. About thesame plant as the highest values of the absolute andrelative cover and this shows the rapid spread of the plantduring the period suitable for growth in the study area.for the soil analysis high soil water content to a depthof 30 cm and 10 cm depth in all sites and this of courseafter the return to a deeper level of the soil for the sun'sheat, which reduces the evaporation of water from it. Itwas also noted the pH values ranged between 7.6 and 8.3,which means that the soil is neutral to lowalkaline.0T*Corresponding author: abaaeshen@kau.edu.sa0TAbu Al-Fath, Hussein Ali. (1991). Ecology. Deanship of LibraryAffairs, King Saud University. Riyadh. Kingdom of SaudiArabia.0TThe General Presidency of Meteorology and EnvironmentProtection. (2004). Data temperature, precipitation, wind,humidity, station Jeddah.6th Nanoscience and Nanotechnology Conference, zmir, 2010 802