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OALib Journal期刊
ISSN: 2333-9721
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江西九连山阔叶林雪灾后主要树种残存量的恢复时间
DOI: DOI: 10.3724/SP.J.1145.2012.00194, PP. 194-199
Keywords: 雪灾,阔叶林种群,残存率,恢复时间,九连山
Abstract:
2008年初的南方冰雪灾害对江西九连山自然保护区常绿阔叶林生态系统造成了巨大损失.对受灾4hm2样地中的15901株林木（dbh≥1cm）进行了统计分析，其中对枫香、马尾松、米槠、木荷、拟赤杨、丝栗栲这6个代表树种进行了残存率恢复研究.结果显示：6种植物残存率为木荷＞拟赤杨＞米槠＞枫香＞马尾松＞丝栗栲；恢复时间为枫香＞丝栗栲＞马尾松＞木荷＞米槠和拟赤杨.恢复时间最长的为枫香（33年），最短的为米槠和拟赤杨（15年左右），种群恢复到受灾前.同时对残存率和恢复时间的关系进行了logistic非线性曲线模拟.样地中植物种群残存率恢复时间由受灾状况和物种生长速度决定，采用logistic模型拟合的相关度非常显著.图1表2参15
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