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落羽杉与池杉幼苗对多种胁迫环境的响应及其
对三峡库区库岸防护林营建的启示!
李昌晓#! %6耿养会%6叶6兵86&3LNMHUMSIMT339!
"#1西南大学生命科学学院6三峡库区生态环境教育部重点实验室6重庆 !$$?#A&
%1三峡库区森林生态保护与恢复重庆市市级重点实验室6重庆 !$$$8"& 81中国林业科学研究院科技信息研究所6北京 #$$$7#&
!1康乃尔大学农学与生命科学学院自然资源系6美国纽约州依萨卡市 #!@A8#
摘6要!6落羽杉与池杉适应和耐受水淹环境已被广泛认可!然而干旱(盐碱(污染与病虫害将很容易影响 8 年生
以下幼苗的生长与发育$ 在三峡库区库岸带多种胁迫环境条件下!选择 8 年生或者更大更健壮的落羽杉与池杉营
造库岸林较为理想$ 8 年生或者更大更健壮的落羽杉与池杉与年龄偏小的幼苗相比抵抗多种逆境胁迫的能力会更
强$ 在三峡库区盐碱地环境条件下!选择落羽杉与墨西哥落羽杉杂交种中山杉 8$%!以及池杉与墨西哥落羽杉杂交
种中山杉 !$# 作为造林树种较为适宜$ 总体来讲!落羽杉与池杉是三峡库区库岸造林的优良候选树种$ 然而!大
量开展落羽杉与池杉对深淹胁迫(多种胁迫因子叠加条件下的生理生态响应研究仍然是必需的$
关键词%6多种胁迫环境& 生理生态响应& 落羽杉& 池杉& 植树造林
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