Matches in SemOpenAlex for { <https://semopenalex.org/work/W2383111120> ?p ?o ?g. }
Showing items 1 to 75 of
75
with 100 items per page.
- W2383111120 abstract "Tree-shading could represent solar radiation intercepted by the tree crown. Understory light environment also had a close relation with tree-shading. The conical crown was studied because it was familiar and its shadow, whether on a flat plane or slope, was more complex than other crown profiles. The shadow profile of an individual conical crown on a slope was an ellipse or a closed curve composed of an ellipse and its two tangents, which depended on the relationship between the solar altitude (h_s) and the base angle (A) of the cone. In the rectangular plane coordinate system,a theoretical model was developed, which took tree height (H), height below branch (h), crown radius(r), longitude (λ), latitude (φ), height (ht), slope(α), aspect (β), date (d) and time (t) into account to describe the shadow boundary of an individual conical crown on the slope. The model was based on geometrical optics theory and the corresponding and imitating principle between shadows on a flat plane and a slope. In the simulation test, the results of Spearman and Kendall's tau-b test showed all correlations between measured and calculated values of boundaries were not less than 0.928 and were significant at the 0.01 level (2-tailed) from 8:00 to 14:00. The model, therefore, was suitable to describe the shadow boundary of an individual cone, and the more the actual profile of the crown resembled a cone, the more accurate the simulated results. Furthermore, this model was practically used to forecast the variable scale of tree-shading of an individual tree species, Pinus sylvestris, in which the shadow of the crown always lied, from 8:00 to 14:00 on May 12~ th . Theoretically, this scale reached 0.69H on the east side of the tree, 1.18H on the west, 0.2H on the south and 0.4H on the north. The result was in accordance with the apparent motion rules of the sun and the correlation was 0.983 between observations and calculations, though it was different from existing research. There were two possible reasons for this difference. One was that two scales were in different time spans respectively. The other reason was that this paper was based on the apparent motion rules of the sun and did not consider any aspects of plant ecology. Advantages and limitations of the model are listed which define how to use this model well with interrelated research." @default.
- W2383111120 created "2016-06-24" @default.
- W2383111120 creator A5018882725 @default.
- W2383111120 date "2006-01-01" @default.
- W2383111120 modified "2023-09-25" @default.
- W2383111120 title "Theoretical research on a model for predicting the shadow boundary of an individual conical crown on a slope" @default.
- W2383111120 hasPublicationYear "2006" @default.
- W2383111120 type Work @default.
- W2383111120 sameAs 2383111120 @default.
- W2383111120 citedByCount "0" @default.
- W2383111120 crossrefType "journal-article" @default.
- W2383111120 hasAuthorship W2383111120A5018882725 @default.
- W2383111120 hasConcept C113174947 @default.
- W2383111120 hasConcept C117797892 @default.
- W2383111120 hasConcept C124961601 @default.
- W2383111120 hasConcept C134306372 @default.
- W2383111120 hasConcept C138187205 @default.
- W2383111120 hasConcept C15744967 @default.
- W2383111120 hasConcept C17825722 @default.
- W2383111120 hasConcept C178635117 @default.
- W2383111120 hasConcept C199343813 @default.
- W2383111120 hasConcept C2524010 @default.
- W2383111120 hasConcept C2778400979 @default.
- W2383111120 hasConcept C33923547 @default.
- W2383111120 hasConcept C38652104 @default.
- W2383111120 hasConcept C41008148 @default.
- W2383111120 hasConcept C542102704 @default.
- W2383111120 hasConcept C62354387 @default.
- W2383111120 hasConcept C71924100 @default.
- W2383111120 hasConcept C74261601 @default.
- W2383111120 hasConceptScore W2383111120C113174947 @default.
- W2383111120 hasConceptScore W2383111120C117797892 @default.
- W2383111120 hasConceptScore W2383111120C124961601 @default.
- W2383111120 hasConceptScore W2383111120C134306372 @default.
- W2383111120 hasConceptScore W2383111120C138187205 @default.
- W2383111120 hasConceptScore W2383111120C15744967 @default.
- W2383111120 hasConceptScore W2383111120C17825722 @default.
- W2383111120 hasConceptScore W2383111120C178635117 @default.
- W2383111120 hasConceptScore W2383111120C199343813 @default.
- W2383111120 hasConceptScore W2383111120C2524010 @default.
- W2383111120 hasConceptScore W2383111120C2778400979 @default.
- W2383111120 hasConceptScore W2383111120C33923547 @default.
- W2383111120 hasConceptScore W2383111120C38652104 @default.
- W2383111120 hasConceptScore W2383111120C41008148 @default.
- W2383111120 hasConceptScore W2383111120C542102704 @default.
- W2383111120 hasConceptScore W2383111120C62354387 @default.
- W2383111120 hasConceptScore W2383111120C71924100 @default.
- W2383111120 hasConceptScore W2383111120C74261601 @default.
- W2383111120 hasLocation W23831111201 @default.
- W2383111120 hasOpenAccess W2383111120 @default.
- W2383111120 hasPrimaryLocation W23831111201 @default.
- W2383111120 hasRelatedWork W1557624747 @default.
- W2383111120 hasRelatedWork W1896439354 @default.
- W2383111120 hasRelatedWork W1974876061 @default.
- W2383111120 hasRelatedWork W2011852234 @default.
- W2383111120 hasRelatedWork W2019571866 @default.
- W2383111120 hasRelatedWork W2022177327 @default.
- W2383111120 hasRelatedWork W2024933948 @default.
- W2383111120 hasRelatedWork W2028609717 @default.
- W2383111120 hasRelatedWork W2029905492 @default.
- W2383111120 hasRelatedWork W2031102347 @default.
- W2383111120 hasRelatedWork W2039210605 @default.
- W2383111120 hasRelatedWork W2049866408 @default.
- W2383111120 hasRelatedWork W2058209750 @default.
- W2383111120 hasRelatedWork W2069828387 @default.
- W2383111120 hasRelatedWork W2081673934 @default.
- W2383111120 hasRelatedWork W2168667335 @default.
- W2383111120 hasRelatedWork W2352851578 @default.
- W2383111120 hasRelatedWork W2994317985 @default.
- W2383111120 hasRelatedWork W2875021272 @default.
- W2383111120 hasRelatedWork W2933340116 @default.
- W2383111120 isParatext "false" @default.
- W2383111120 isRetracted "false" @default.
- W2383111120 magId "2383111120" @default.
- W2383111120 workType "article" @default.