Effects of Winter Fire on Vegetation Community Characteristics and Soil Properties of A Typical Steppe on the Loess Plateau

doi:10.11733/j.issn.1007-0435.2018.03.008

Acta Agrestia Sinica ›› 2018, Vol. 26 ›› Issue (3): 576-583.DOI: 10.11733/j.issn.1007-0435.2018.03.008

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Effects of Winter Fire on Vegetation Community Characteristics and Soil Properties of A Typical Steppe on the Loess Plateau

ZHAO Ling-ping^1,2, WEI Nan¹, TAN Shi-tu¹, HE Qing-bo¹, WANG Zhan-bin^1,2, FAN Wen-na^1,2, SUN Ping¹

1. College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan Province 471003, China;
2. Forage Resources Exploration and Animal Health Cultivation Academician Workstation of Henan province, Luoyang, Henan Province 471023, China

Received:2017-02-09 Revised:2018-05-21 Online:2018-06-15 Published:2018-08-24

冬季火烧对黄土高原典型草原群落特征及土壤特征的影响

赵凌平^1,2, 魏楠¹, 谭世图¹, 何晴波¹, 王占彬^1,2, 樊文娜^1,2, 孙平¹

1. 河南科技大学动物科技学院, 河南洛阳 471023;
2. 河南省饲草饲料资源开发与畜禽健康养殖院士工作站, 河南洛阳 471023

通讯作者: 谭世图
作者简介:赵凌平(1983-),女,河南漯河人,博士,讲师,主要从事草地生态学研究,E-mail:zlp19830629@163.com
基金资助:
国家自然科学青年基金项目（31302013）；国家科技支撑计划（2014BAC05B04）；河南省教育厅科学技术研究重点项目（13A2302812013）；河南科技大学博士启动基金项目（09001634）资助

Abstract

Abstract:

Difference in the species composition, functional group composition, species diversity, abovegro-und biomass, soil organic carbon and soil total nitrogen of the plant communities between the burnt and unburned areas in the typical steppe on the Loess Plateau was analyzed. As a result of the analysis, winter fire significantly decreased the importance value of perennial grasses, significantly increased the importance value of perennial forbs, and had no effect on the importance value of annual-biennial herbs and shrubs- subshrubs. For the species composition of the functional groups, winter fire significantly increased the percentage of shrubs-subshrubs, decreased the percentage of annual-biennial herbs, and did not significantly affect the percentage of perennial forbs and perennial grasses. The species richness of annual-biennial herbs significantly decreased and shrubs-subshrubs significantly increased in burnt grasslands compared with unburned grasslands. Winter fire significantly decreased the aboveground biomass of perennial grasses and increased the aboveground biomass of perennial forbs. Soil organic carbon and soil total nitrogen in 0~10 cm soil layer were both significant higher in the burnt grasslands than that in the unburnt grasslands.

Key words: Winter fire, Functional groups characteristics, Above-ground biomass, Soil organic carbon, Soil total nitrogen

摘要：

本研究采用野外样方调查和室内分析相结合的方法，分析了黄土高原典型草原冬季火烧区和未火烧区植物群落的物种组成、功能群组成、物种多样性、地上生物量，以及土壤有机碳和全氮。结果表明：冬季火烧显著降低了多年生禾草的重要值，而提高了多年生杂类草的重要值，而对一、二年生草本和灌木、半灌木功能群的重要值影响不显著。冬季火烧显著提高了灌木、半灌木在群落中的比例，并且降低了一、二年生草本的比例，但对多年生禾草和多年生杂类草的比例影响不显著。灌木、半灌木功能群的丰富度指数在火烧地显著大于未火烧地，而一、二年生草本的丰富度指数显著小于未火烧地。冬季火烧显著降低多年生禾草功能群的生物量和显著提高多年生杂类草功能群的生物量。火烧草地的土壤有机碳和全氮含量在0～10 cm土层中均显著高于未火烧草地。

关键词: 冬季火烧, 功能群特征, 地上生物量, 土壤有机碳, 土壤全氮

CLC Number:

S812

ZHAO Ling-ping, WEI Nan, TAN Shi-tu, HE Qing-bo, WANG Zhan-bin, FAN Wen-na, SUN Ping. Effects of Winter Fire on Vegetation Community Characteristics and Soil Properties of A Typical Steppe on the Loess Plateau[J]. Acta Agrestia Sinica, 2018, 26(3): 576-583.

赵凌平, 魏楠, 谭世图, 何晴波, 王占彬, 樊文娜, 孙平. 冬季火烧对黄土高原典型草原群落特征及土壤特征的影响[J]. 草地学报, 2018, 26(3): 576-583.

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Effects of Winter Fire on Vegetation Community Characteristics and Soil Properties of A Typical Steppe on the Loess Plateau

冬季火烧对黄土高原典型草原群落特征及土壤特征的影响

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