Borçka Barajı Rezervuarında Yeni Oluşmuş Bir Sediment Birikim Sahasındaki Penetrasyon Direnç Değerlerinin Uzaysal Dağılımı
This study was conducted to analyze vertical and horizontal spatial variability of penetration resistance (PR) in recently deposited sediments at Borçka Dam reservoir. Ninety-one grids with 50 m by 10 m were located and PR was measured to a depth 80 cm by 10 cm increment (8 layers) within each grid....
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Ankara University
2017-09-01
|
| Series: | Journal of Agricultural Sciences |
| Subjects: | |
| Online Access: | https://dergipark.org.tr/tr/download/article-file/513264 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849766543608512512 |
|---|---|
| author | Bülent Turgut Mehmet Özalp Taşkın Öztaş |
| author_facet | Bülent Turgut Mehmet Özalp Taşkın Öztaş |
| author_sort | Bülent Turgut |
| collection | DOAJ |
| description | This study was conducted to analyze vertical and horizontal spatial variability of penetration resistance (PR) in recently deposited sediments at Borçka Dam reservoir. Ninety-one grids with 50 m by 10 m were located and PR was measured to a depth 80 cm by 10 cm increment (8 layers) within each grid. Spatial variation of PR was assessed by geostatistical techniques in all 8 layers. Semivariograms of PR were constructed for all the layers and corresponding kriging maps were built. The PR values were greater in surface layer (0-10 cm) and gradually decreased by depth. Mean PR was greatest (0.747 MPa) in surface layer and lowest (0.413 MPa) in 61-70 cm (layer 7). Results from exploratory statistics and geostatistical analyses showed that the PR values were more variable in surface layer compared to those in deeper layers due to that the surface layer was drier at the sampling and that affected by environmental factors in a greater extent. All the studied layers exhibited differences in spatial variation of PR as sill, nugget, and range values of corresponding semivariograms and kriging-predicted surface maps showed. The shortest geostatistical range (40.8 m) occurred of surface layer while longest (173.3 m) occurred for second layer (11-20 cm). The nugget effect was greatest (44%) in third layer (21-30 cm) while lowest (13%) in the surface layer. The same study may be repeated with more variables to understand mechanisms behind development and extent of spatial variation in these newly deposited sediments. |
| format | Article |
| id | doaj-art-aee29d6617364922b03f06fdecbc66fc |
| institution | DOAJ |
| issn | 1300-7580 2148-9297 |
| language | English |
| publishDate | 2017-09-01 |
| publisher | Ankara University |
| record_format | Article |
| series | Journal of Agricultural Sciences |
| spelling | doaj-art-aee29d6617364922b03f06fdecbc66fc2025-08-20T03:04:33ZengAnkara UniversityJournal of Agricultural Sciences1300-75802148-92972017-09-0123329830810.15832/ankutbd.44760445Borçka Barajı Rezervuarında Yeni Oluşmuş Bir Sediment Birikim Sahasındaki Penetrasyon Direnç Değerlerinin Uzaysal DağılımıBülent Turgut0Mehmet Özalp1Taşkın Öztaş2Artvin Çoruh Üniversitesi, Orman Fakültesi, Orman Mühendisliği Bölümü, 08000, Artvin, TÜRKİYEArtvin Çoruh Üniversitesi, Orman Fakültesi, Orman Mühendisliği Bölümü, 08000, Artvin, TÜRKİYEAtatürk Üniversitesi, Ziraat Fakültesi, Toprak Bilimi ve Bitki Besleme Bölümü, 25240, Erzurum, TÜRKİYEThis study was conducted to analyze vertical and horizontal spatial variability of penetration resistance (PR) in recently deposited sediments at Borçka Dam reservoir. Ninety-one grids with 50 m by 10 m were located and PR was measured to a depth 80 cm by 10 cm increment (8 layers) within each grid. Spatial variation of PR was assessed by geostatistical techniques in all 8 layers. Semivariograms of PR were constructed for all the layers and corresponding kriging maps were built. The PR values were greater in surface layer (0-10 cm) and gradually decreased by depth. Mean PR was greatest (0.747 MPa) in surface layer and lowest (0.413 MPa) in 61-70 cm (layer 7). Results from exploratory statistics and geostatistical analyses showed that the PR values were more variable in surface layer compared to those in deeper layers due to that the surface layer was drier at the sampling and that affected by environmental factors in a greater extent. All the studied layers exhibited differences in spatial variation of PR as sill, nugget, and range values of corresponding semivariograms and kriging-predicted surface maps showed. The shortest geostatistical range (40.8 m) occurred of surface layer while longest (173.3 m) occurred for second layer (11-20 cm). The nugget effect was greatest (44%) in third layer (21-30 cm) while lowest (13%) in the surface layer. The same study may be repeated with more variables to understand mechanisms behind development and extent of spatial variation in these newly deposited sediments.https://dergipark.org.tr/tr/download/article-file/513264compaction; geostatistics; kriging; sediment; semivariogram |
| spellingShingle | Bülent Turgut Mehmet Özalp Taşkın Öztaş Borçka Barajı Rezervuarında Yeni Oluşmuş Bir Sediment Birikim Sahasındaki Penetrasyon Direnç Değerlerinin Uzaysal Dağılımı Journal of Agricultural Sciences compaction; geostatistics; kriging; sediment; semivariogram |
| title | Borçka Barajı Rezervuarında Yeni Oluşmuş Bir Sediment Birikim Sahasındaki Penetrasyon Direnç Değerlerinin Uzaysal Dağılımı |
| title_full | Borçka Barajı Rezervuarında Yeni Oluşmuş Bir Sediment Birikim Sahasındaki Penetrasyon Direnç Değerlerinin Uzaysal Dağılımı |
| title_fullStr | Borçka Barajı Rezervuarında Yeni Oluşmuş Bir Sediment Birikim Sahasındaki Penetrasyon Direnç Değerlerinin Uzaysal Dağılımı |
| title_full_unstemmed | Borçka Barajı Rezervuarında Yeni Oluşmuş Bir Sediment Birikim Sahasındaki Penetrasyon Direnç Değerlerinin Uzaysal Dağılımı |
| title_short | Borçka Barajı Rezervuarında Yeni Oluşmuş Bir Sediment Birikim Sahasındaki Penetrasyon Direnç Değerlerinin Uzaysal Dağılımı |
| title_sort | borcka baraji rezervuarinda yeni olusmus bir sediment birikim sahasindaki penetrasyon direnc degerlerinin uzaysal dagilimi |
| topic | compaction; geostatistics; kriging; sediment; semivariogram |
| url | https://dergipark.org.tr/tr/download/article-file/513264 |
| work_keys_str_mv | AT bulentturgut borckabarajırezervuarındayeniolusmusbirsedimentbirikimsahasındakipenetrasyondirencdegerlerininuzaysaldagılımı AT mehmetozalp borckabarajırezervuarındayeniolusmusbirsedimentbirikimsahasındakipenetrasyondirencdegerlerininuzaysaldagılımı AT taskınoztas borckabarajırezervuarındayeniolusmusbirsedimentbirikimsahasındakipenetrasyondirencdegerlerininuzaysaldagılımı |