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模拟升温对滨海湿地盐地碱蓬生物量及其枯落物分解影响的研究
陈琤1, 张贵文2, 陆滢1, 徐振3, 刘玉虹1
1.河海大学;2.内蒙古大学;3.国电科学技术研究院有限公司
摘要:
在全球变暖背景下,研究滩涂枯落物分解状况变化,有助于理解滩涂湿地生态系统对全球气候变暖的响应过程。本研究根据系统动力学的原理,通过STELLA软件构建了盐地碱蓬种群生长与分解模型,研究结果表明:盐地碱蓬地上和地下生物量年内变化过程为快速增长-稳定不变-快速减少;盐地碱蓬地上、地下枯落物生物量年内变化过程呈现出下降-急速上升-下降;温度升高后,分解率下降,枯落物分解量显著降低,主要由于温度过高,不利于土壤微生物分解活动。
关键词:  莱州湾,滨海湿地,盐地碱蓬,STELLA软件,分解率
DOI:10.11759/hykx20190120003
分类号:
基金项目:江苏省海洋科技创新专项(HY2018-1);江苏高校优势学科建设工程资助项目(2016B12014);河海大学中央高校基本科研业务费专项资金资助,
Studying and stimulating the effects of warming up on Suaeda salsa population growth and its litter decomposition in coastal wetland of Laizhou Bay
chencheng1, zhangguiwen2, luying1, xuzhen3, liuyuhong1
1.Hohai University;2.Inner Mongolia University;3.State Power Environmental Protection Research Institute Limited Company
Abstract:
The changes of litter decomposition study are useful for understanding the processes of the wetland ecosystem in response to global warming. In this study,according to the principle of dynamic systems,the model of the population growth and decomposition of Suaeda salsa was made by the software STELLA. The results showed:The annual change processes of the aboveground and underground biomass of Suaeda salsawere rapid growth firstly, then steady change and rapid decreaselastly;. The annual change processes of aboveground and underground litter biomass showed a decline - sharp rise – decline;When temperature increased, the decomposition rate decreased and the decomposition amount of litter declined significantly, which was because of high temperature being not conductive to the decomposition activities of soil microorganisms.
Key words:  Laizhou Bay, Coastal Wetland, Suaeda salsa, Software STELLA, Decomposition Rate
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