Coastal areas face challenges in updating and enhancing the quality of coastal shelterbelt forests due to limited soil resource utilization,the biological characteristics of tree species,and the impact of coastal stor...Coastal areas face challenges in updating and enhancing the quality of coastal shelterbelt forests due to limited soil resource utilization,the biological characteristics of tree species,and the impact of coastal storm surges.This study,based on clarifying the connotation of stand quality(SQ)for Casuarina equisetifolia(C.equisetifolia),a typical coastal shelterbelt species,integrates stand growth conditions and structure,applying the AHP-EWM method to construct an SQ evaluation model.The model identifies key factors influencing the quality of C.equisetifolia stands and explores the mechanisms driving their growth processes.The results indicate that mean tree height,mean diameter at breast height,and stand density are key indicators for assessing the SQ of C.equisetifolia stands.The SQ of C.equisetifolia coastal shelterbelt stands varies across different land-sea positions,mainly influenced by stand age and soil nutrient levels.As stand age increases,the SQ initially improves and then declines.Additionally,C.equisetifolia trees growing in nutrient-rich soils exhibit better growth and higher SQ than those in poor soils.The findings of this study provide a theoretical foundation for the management and quality enhancement of coastal shelterbelt forests.展开更多
基金supported by the Fujian Forestry Science and Technology Research Project(2023FKJ15)Fuzhou Forestry Science and Technology Research Project(2130206)+1 种基金Special Fund Project for Scientific and Technological Innovation of Fujian Agriculture and Forestry University(KFB23173)University Key Lab for Geomatics Technology&Optimize Resources Utilization in Fujian Province(KJG20104A).
文摘Coastal areas face challenges in updating and enhancing the quality of coastal shelterbelt forests due to limited soil resource utilization,the biological characteristics of tree species,and the impact of coastal storm surges.This study,based on clarifying the connotation of stand quality(SQ)for Casuarina equisetifolia(C.equisetifolia),a typical coastal shelterbelt species,integrates stand growth conditions and structure,applying the AHP-EWM method to construct an SQ evaluation model.The model identifies key factors influencing the quality of C.equisetifolia stands and explores the mechanisms driving their growth processes.The results indicate that mean tree height,mean diameter at breast height,and stand density are key indicators for assessing the SQ of C.equisetifolia stands.The SQ of C.equisetifolia coastal shelterbelt stands varies across different land-sea positions,mainly influenced by stand age and soil nutrient levels.As stand age increases,the SQ initially improves and then declines.Additionally,C.equisetifolia trees growing in nutrient-rich soils exhibit better growth and higher SQ than those in poor soils.The findings of this study provide a theoretical foundation for the management and quality enhancement of coastal shelterbelt forests.
