Effect of fire on phosphorus forms in Sphagnum moss and peat soils of ombrotrophic bogs

被引：21

作者：

Wang, Guoping ^{[1
]}

Yu, Xiaofei ^{[1
]}

Bao, Kunshan ^{[1
]}

Xing, Wei ^{[1
]}

Gao, Chuanyu ^{[1
]}

Lin, Qianxin ^{[1
,2
]}

Lu, Xianguo ^{[1
]}

机构：

[1] Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, Changchun 130102, Peoples R China

[2] Louisiana State Univ, Sch Coast & Environm, Dept Oceanog & Coastal Sci, Baton Rouge, LA 70803 USA

来源：

CHEMOSPHERE | 2015年 / 119卷

基金：

中国国家自然科学基金;

关键词：

Peat combustion; Burning temperature; Phosphorus fractionation; Peatland; NORTHERN FLORIDA EVERGLADES; CATTAIL TYPHA-DOMINGENSIS; SIMULATED FOREST-FIRE; PRESCRIBED FIRE; WATER-QUALITY; AVAILABILITY; CHINA; NITROGEN; TEMPERATURE; ECOSYSTEMS;

D O I：

10.1016/j.chemosphere.2014.01.084

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The effect of burning Sphagnum moss and peat on phosphorus forms was studied with controlled combustion in the laboratory. Two fire treatments, a light fire (250 degrees C) and a severe fire (600 degrees C), were performed in a muffle furnace with 1-h residence time to simulate the effects of different forest fire conditions. The results showed that fire burning Sphagnum moss and peat soils resulted in losses of organic phosphorus (P-o), while inorganic phosphorus (P-l) concentrations increased. Burning significantly changed detailed phosphorus composition and availability, with severe fires destroying over 90% of organic phosphorus and increasing the availability of inorganic P by more than twofold. Our study suggest that, while decomposition processes in ombrotrophic bogs occur very slowly, rapid changes in the form and availability of phosphorus in vegetation and litter may occur as the result of forest fires on peat soils. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：1329 / 1334

页数：6

共 54 条

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