{"id":5614,"date":"2022-11-03T03:43:41","date_gmt":"2022-11-03T03:43:41","guid":{"rendered":"http:\/\/agri-research-journal.net\/SjarEn\/?p=5614"},"modified":"2022-11-03T03:43:41","modified_gmt":"2022-11-03T03:43:41","slug":"construction-and-validation-of-height-curves-and-estimation-of-standing-wood-volume-of-pinus-brutia-in-baloran-region-latakia-syria","status":"publish","type":"post","link":"https:\/\/agri-research-journal.net\/SjarEn\/?p=5614","title":{"rendered":"Construction and Validation of Height Curves and Estimation of Standing Wood Volume Of Pinus Brutia in Baloran Region (Latakia \u2013Syria)"},"content":{"rendered":"

Dima Shareef *(1)<\/sup>, Wael Ali(1)<\/sup> , and Wala\u2019a Adra(1)<\/sup><\/strong><\/span><\/p>\n

(1). Forestry and Environment Department, Faculty of Agriculture, Tishreen University, Syria.<\/span><\/p>\n

(*Corresponding author: Dima SHareef. E-Mail: dimashareef147@gmail.com<\/strong><\/a>)<\/strong><\/span><\/p>\n

Received:\u00a0 11\/06\/2021\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Accepted: 14\/10\/ 2021<\/span><\/p>\n

Abstract:\u00a0<\/strong><\/span><\/p>\n

This research aims to construct some mathematical equations, used for estimating the total height of pinus brutia trees(pinus brutia)<\/strong><\/em>. Some statistical methods were done to assess model goodness then\u00a0 select the best one to estimate the height of\u00a0 <\/em>brutia pine trees in\u00a0 <\/em>Balloran, 40 kilometers north of Lattakia . This will enable us to estimate woody stock and in turn helping\u00a0 in forest\u00a0 management of the site. 20 circular\u00a0 plots with a radius of 11.3 meter were sampled. All variations in the study area were taken into account. Diameter on breast height dbh of all trees in plots were measured. In order to construct height curves 30 tees covering diameter range were selected and there diameters and heights were also measured. Where 15 trees were used to construct models of height curves and determine the constants, and another 15 trees were used to test the quality of the models. For tree height modelling several mathematical equations were used:. Michailoff, Prodan, Petterson, Parabel, Logarithmic, Freese and\u00a0 Korsun. Tthe models were\u00a0 quantitatively examined by calculating average model bias (\u0113<\/em>) which tests the systematic deviation of the model from the observations, average model bias % or relative bias (\u0113 %<\/em>), model precision which is defined as the standard deviation of the bias (Se <\/em>and Se%<\/em>), model accuracy which describes the distribution of the total differences between predicted and observed values (mx <\/em>and mx <\/em>%). Logarithmic model was selected for tree height modelingof brutia pine\u00a0\u00a0 in the area of study. The future studies can be based on the current work in order to help in forest management of the site of study and\u00a0 similar areas.<\/span><\/p>\n

Keywords:<\/strong> Height curves, pinus brutia<\/em>– Model goodness, basal area \u2013baloran region.<\/span><\/p>\n

Full paper in Arabic: pdf<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Dima Shareef *(1), Wael Ali(1) , and Wala\u2019a Adra(1) (1). Forestry and Environment Department, Faculty of Agriculture, Tishreen University, Syria. (*Corresponding author: Dima SHareef. E-Mail: dimashareef147@gmail.com) Received:\u00a0 11\/06\/2021\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Accepted: 14\/10\/ 2021 Abstract:\u00a0 This research aims to construct some mathematical … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5614","post","type-post","status-publish","format-standard","hentry","category-sjar"],"_links":{"self":[{"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/5614","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5614"}],"version-history":[{"count":1,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/5614\/revisions"}],"predecessor-version":[{"id":5616,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=\/wp\/v2\/posts\/5614\/revisions\/5616"}],"wp:attachment":[{"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5614"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5614"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agri-research-journal.net\/SjarEn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5614"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}