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Full-Text Articles in Life Sciences
Analysis Of Designs Used In Monitoring Crop Growth Based On Remote Sensing Methods, Cristina Teodora Dobrota, Rahela Carpa, Anca Butiuc-Keul
Analysis Of Designs Used In Monitoring Crop Growth Based On Remote Sensing Methods, Cristina Teodora Dobrota, Rahela Carpa, Anca Butiuc-Keul
Turkish Journal of Agriculture and Forestry
Choosing appropriate designs and methods for monitoring crop growth is a challenging process of major importance. Remote sensing from space and manned or unmanned airborne operations are used to measure crop reflectance and a wide variety of other agricultural parameters. While some experiments use only a few, specific methods and designs and organize the results in lists of evidence, other experiments use a wider range of techniques to create a more credible and comprehensive assessment of crop yield. Particular situations related to the available resources in terms of data collection and expertise in addition to the intended use of the …
Determination Of Irrigation Performance Of Water User Associations In The Vicinity Of Sarıgöl And Alaşehir Using Remote Sensing Techniques, Beki̇r Sitki Karataş, Erhan Akkuzu, Musa Avci
Determination Of Irrigation Performance Of Water User Associations In The Vicinity Of Sarıgöl And Alaşehir Using Remote Sensing Techniques, Beki̇r Sitki Karataş, Erhan Akkuzu, Musa Avci
Turkish Journal of Agriculture and Forestry
The aim of this research was to determine the irrigation performance of Sarıgöl, Bağ, and Üzüm Water User Associations (WUAs) in the vicinity of Sarıgöl and Alaşehir using remote sensing techniques. For this purpose, the performance of the irrigation system for the 2004 irrigation season (May to September) was determined according to 5 indicators, namely overall consumed ratio (ep), relative water supply (RWS), depleted fraction (DF), crop water deficit (CWD), and relative evapotranspiration (RET). Potential and actual evapotranspiration parameters used in determining these indicators were estimated according to the SEBAL (Surface Energy Balance) method using NOAA-16/AVHRR images. Seasonal averages of …
Mapping Secondary Forest Succession With Geographic Information Systems: A Case Study From Bulanıkdere, Kırklareli, Turkey, Günay Çakir, Fati̇h Si̇vri̇kaya, Sali̇h Terzi̇oğlu, Emi̇n Zeki̇ Başkent, Turan Sönmez, Haci Ahmet Yolasiğmaz
Mapping Secondary Forest Succession With Geographic Information Systems: A Case Study From Bulanıkdere, Kırklareli, Turkey, Günay Çakir, Fati̇h Si̇vri̇kaya, Sali̇h Terzi̇oğlu, Emi̇n Zeki̇ Başkent, Turan Sönmez, Haci Ahmet Yolasiğmaz
Turkish Journal of Agriculture and Forestry
Developing forest management plans for sustaining the full range of forest values is a challenging task. One of the difficulties in this process is to set and achieve management objectives, and conservation targets. A sustainable forest management concept requires that a target forest structure (the composition and the configuration) be set before developing alternative management actions for the achievement of management objectives and the conservation targets. In this respect, developing and understanding vegetation succession play important roles in setting the target forest conditions. This study was conducted in the Bulanıkdere Forest planning unit (Kırklareli, Turkey) where the biodiversity-integrated multiple-use forest …
Spectral Sensing Of Aphid (Hemiptera: Aphididae) Density Using Field Spectrometry And Radiometry, Mustafa Mi̇ri̇k, Gerald J. Michels
Spectral Sensing Of Aphid (Hemiptera: Aphididae) Density Using Field Spectrometry And Radiometry, Mustafa Mi̇ri̇k, Gerald J. Michels
Turkish Journal of Agriculture and Forestry
The greenbug, Schizaphis graminum (Rondani), and bird cherry-oat aphid, Rhopalosiphum padi L., are aphid pests of wheat (Triticum aestivum L.), barley (Hordeum vulgare L.), sorghum (Sorghum bicolor L.), oat (Avena sativa L.), and other cereals worldwide. Greenbug and bird cherry-oat aphid infestation in crops is unpredictable over space and time. From these 2 aphids, greenbug infestation causes significant reduction in yield, and consequently large amounts of insecticides are used to control greenbug populations. Therefore, a repeatable and rapid method is necessary for monitoring aphid populations. Remote sensing appears promising for the monitoring of aphid density in crops. The present research …
Use Of Remote Sensing And Geographic Information System Technologies For Developing Greenhouse Databases, Namik Kemal Sönmez, Mustafa Sari
Use Of Remote Sensing And Geographic Information System Technologies For Developing Greenhouse Databases, Namik Kemal Sönmez, Mustafa Sari
Turkish Journal of Agriculture and Forestry
This model study was conducted in Antalya region greenhouses for the determination and registration of agricultural resources as a part of adjustment efforts for the European Union (EU) Common Agricultural Policy (CAP). The aim was to create new database systems based on remote sensing (RS) and geographic information systems (GIS), rather than conventional land measurement techniques. For this purpose, glass and plastic greenhouses were determined by visual data analysis of satellite image, and databases were created for each greenhouse by GIS. These databases included area, coordinates and other characteristics of each greenhouse. These databases were prepared in a format that …
Using Advanced Spectral Analyses Techniques As Possible Means Of Identifying Clay Minerals, Ünal Altinbaş, Yusuf Kurucu, Mustafa Bolca, A. H. El-Nahry
Using Advanced Spectral Analyses Techniques As Possible Means Of Identifying Clay Minerals, Ünal Altinbaş, Yusuf Kurucu, Mustafa Bolca, A. H. El-Nahry
Turkish Journal of Agriculture and Forestry
Spectral analyses, one of the most advanced remote sensing techniques, were used as a possible means of identifying the mineralogy of the clay fractions that corresponded to the Küçük Menderes Plain, south of İzmir, Turkey. Different spectral processes were used to execute the prospective spectral analyses. The processes include: i. the reflectance calibration of TM images belonging to the studied area, ii. using minimum noise fraction (MNF) transformation and iii. creating the pixel purity index (PPI), which was used to the most "spectrally pure", extreme, pixel in multi-spectral images. Spectral analyses of the clay mineralogy of the studied area were …
A Remote Sensing Approach For Detecting Agricultural Encroachment On The Eastern Mediterranean Coastal Dunes Of Turkey, Süha Berberoğlu, Hakan Alphan, Kemal Tuluhan Yilmaz
A Remote Sensing Approach For Detecting Agricultural Encroachment On The Eastern Mediterranean Coastal Dunes Of Turkey, Süha Berberoğlu, Hakan Alphan, Kemal Tuluhan Yilmaz
Turkish Journal of Agriculture and Forestry
The aim of this study was to develop an effective procedure for detecting land use/land cover (LU/LC) changes resulting from agricultural encroachment on eastern Mediterranean coastal dunes by using remote-sensing techniques. Historic LU/LC information was extracted from aerial photos taken in 1976 and IKONOS imagery was acquired in 2002 to determine the current LU/LC pattern. The remotely sensed aerial and satellite data were classified by integrating spectral information with measures of texture, in the form of statistics derived from the variance, co-occurrence matrix and variogram. The performance of these classification approaches was evaluated in terms of error matrices. The accuracy …
Soil Erosion Risk Assessment With Icona Model; Case Study: Beypazarı Area, İlhami̇ Bayrami̇n, Orhan Dengi̇z, Oğuz Başkan, Mehmet Parlak
Soil Erosion Risk Assessment With Icona Model; Case Study: Beypazarı Area, İlhami̇ Bayrami̇n, Orhan Dengi̇z, Oğuz Başkan, Mehmet Parlak
Turkish Journal of Agriculture and Forestry
In this research, the applicability of geographic information system (GIS) and remote sensing (RS) techniques was tested to assess soil erosion risk with the ICONA erosion model. This study was carried out in the Ankara-Beypazarı area because of its variety of diverse landforms, land uses and land covers. The erosion risk assessment phase of this model consists of seven steps that mainly use slope, geology, land use and land cover information. A potential erosion risk map (step 3) was obtained from the slope (step 1) and lithofacies layers (step 2) generated using a digital elevation model (DEM) and digital geological …