石漠化地区的生态危机及菌根桑生物修复潜力研究进展

被引:19
作者
刘代军 [1 ]
涂波 [1 ]
施松梅 [1 ]
杨晓红 [1 ]
黄先智 [2 ]
秦俭 [2 ]
机构
[1] 南方山地园艺学教育部重点实验室/西南大学园艺园林学院
[2] 西南大学蚕学与系统生物学研究所
关键词
石漠化; 生态修复; 桑树; 菌根技术; 区域发展;
D O I
暂无
中图分类号
S154.3 [土壤微生物学];
学科分类号
摘要
在简要总结出石漠化地区的生态特征、生态威胁及生态恢复存在的主要障碍的基础上,比较系统地分析了桑树在石漠化生境中已表现出的生态适应能力和生态修复潜力。桑树作为喀斯环境的速生造林树种,根系发达,耐干旱耐贫瘠能力极强,对增加植被覆盖率、促进生态环境改善、实现石漠化地区脆弱生态系统的恢复与平衡产生重要作用。尤其是由于丛枝菌根具有对矿质营养和水分吸收能力强的特殊生理生态功能,刚好与石漠化地区贫瘠和干旱这一主要生态障碍相耦合,接种丛枝菌根真菌后能进一步扩大桑树对矿质营养和水分的吸收与运输,减轻贫瘠干旱胁迫,加快土壤微生物群落构建,提高土壤生物活力,促进植被群落正向演替。种植菌根桑可望成为喀斯特石漠化生态修复一种新途径。
引用
收藏
页码:185 / 190
页数:6
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