森林土壤酶对环境变化的响应研究进展

被引:120
作者
刘捷豹 [1 ]
陈光水 [1 ,2 ]
郭剑芬 [1 ,2 ]
杨智杰 [1 ,2 ]
李一清 [1 ]
林成芳 [1 ,2 ]
杨玉盛 [1 ,2 ]
机构
[1] 福建师范大学地理科学学院
[2] 福建师范大学湿润亚热带山地生态国家重点实验室培育基地
关键词
气候变化; 增温; 氮沉降; 土壤酶; 活性;
D O I
暂无
中图分类号
S714.3 [森林土壤生物学];
学科分类号
090709 [森林培育学];
摘要
全球气候变化已是不争的事实,对陆地生态系统特别是森林生态系统物质循环将产生显著的影响。土壤酶是森林土壤物质循环的主要限制因素之一,对气候变化的响应近年来受到广泛关注。由于森林土壤酶对全球气候变化的响应研究是预测未来环境变化对森林生态系统过程影响的关键,因此,着重综述了森林土壤酶对环境变化尤其是全球变暖和氮沉降响应方面的研究,并分析了未来研究的主要方向。环境变化会引起土壤p H、水分及其营养成分的变化,而这些变化会反作用于土壤酶的活性和稳定性。森林土壤酶对增温的响应,不仅与酶的种类以及增温的温度范围和持续时间有关,还与土壤类型有关,是多种因子综合作用的结果。森林土壤酶对氮添加的响应与林分类型和土层类型有关,受复合氮的影响更大。建议未来的研究应加强酶的基本性质对环境变化的响应研究,注重林分类型、土层类型导致的差异,强化多因素的交互作用,并进行长期、综合的观测。
引用
收藏
页码:110 / 117
页数:8
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