Exploring the relationship between vegetation types and environmental factors in Mahdasht plain, Iran | ||
| Sustainable Earth Trends | ||
| مقاله 4، دوره 2، شماره 2، 2022، صفحه 30-37 اصل مقاله (1.26 M) | ||
| نوع مقاله: Original Research Article | ||
| شناسه دیجیتال (DOI): 10.48308/sustainearth.2022.102541 | ||
| نویسندگان | ||
| Salman Zare* 1؛ Mohammad Jafari1؛ Ali Tavil1؛ Hamidreza Abbasi2 | ||
| 1Faculty of Natural Resource, University of Tehran, Tehran, Iran | ||
| 2Research Institute of Forests and Rangelands | ||
| چکیده | ||
| Understanding laws of growth and development, the interaction between structures and natural factors, and evaluating potentials of ecosystems is the first step in providing a well-founded management to meet economic and social needs and help natural ecosystems to preserve their dynamism. The present study provides an analysis of soil, vegetation types as well as structure and species distribution in Mahdasht plain, Iran; and focuses on the environmental factors that control the species distribution. A data set including floristic vegetation and environmental variables (soil properties from two depths and topographic variable) were analyzed in order to describe the relationships between floristic composition and environmental variables. Classification of the vegetation was analyzed using two-way indicator species analysis (TWINSPAN) and Cluster Analysis techniques. Cluster Analysis showed results similar to TWINSPAN and resulted in the recognition of five vegetation groups. PCA was used to examine the relationship between the vegetation and studied environmental parameters. Analysis with PCA suggesting that there is a relatively high correspondence between vegetation and soil factors that explain 97% of the total variance in data set. PCA results showed that soil texture, salinity, PSS, effective soil depth, available nitrogen, potassium and soil moisture criteria were the major soil factors responsible for variations in the pattern of vegetation. | ||
| کلیدواژهها | ||
| Classification؛ Soil؛ TWINSPAN and PCA؛ Vegetation type | ||
| مراجع | ||
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