森林土壤酶对环境变化的响应研究进展

发布时间：2018-05-05 05:17

本文选题：气候变化 + 增温　；参考：《生态学报》2017年01期

【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。
[Abstract]:Global climate change is an indisputable fact, which will have a significant impact on the material cycle of terrestrial ecosystems, especially forest ecosystems. Soil enzyme is one of the main limiting factors of forest soil material cycle, and its response to climate change has been paid more and more attention in recent years. Since the response of forest soil enzymes to global climate change is key to predicting the impact of future environmental changes on forest ecosystem processes, The research on the response of forest soil enzymes to environmental change, especially global warming and nitrogen deposition, was reviewed in this paper, and the main research directions in the future were analyzed. Environmental changes will cause changes in soil pH, water and nutrients, and these changes will counteract the activity and stability of soil enzymes. The response of forest soil enzymes to warming is not only related to the types of enzymes, the temperature range and duration of warming, but also to soil types, which is the result of the comprehensive action of many factors. The response of forest soil enzyme to nitrogen addition was related to the type of stand and soil layer, and was more affected by compound nitrogen. It is suggested that the future research should strengthen the response of the basic properties of enzyme to environmental change, pay attention to the forest type, the difference caused by soil type, strengthen the interaction of many factors, and carry out long-term and comprehensive observation.
【作者单位】：福建师范大学地理科学学院;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;
【基金】：国家自然科学基金重点资助项目(31130013);国家自然科学基金面上资助项目(31270584) 国家“973”计划资助项目(2014CB954003)
【分类号】：S714.3

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