摘要
生物土壤结皮在干旱、半干旱地区分布较为广泛,约占陆地总面积的40%,生物土壤结皮是支撑该区生态系统主要的生物表面特征,在改善生态环境和草地土壤养分调控方面起着重要作用。自1960年以来,国内外许多学者对其生态功能进行了大量研究,但对生物土壤结皮演替机制及其微生境土壤养分变异特征的研究尚不明确。为此,本文就国内外该领域近50年来的研究进展和成果进行了详细阐述,以期了解生物土壤结皮发育对土壤肥力的作用过程;同时,也为研究干旱半干旱区退化草地生态系统的恢复与重建提供一定的科学思路。
Biological soil crusts are widely distributed in arid and semiarid regions, occupy approximately 40% of the total land area, and determine the main biological surface characteristics of the ecological system, there- by playing an important role in improving the ecological environment and the meadow soil nutrient regulation. Since 1960, many experts worked a lot on its ecological functions at the domestic and international levels, but soil nutrients variation characteristics and microenvironmental processes of biological soil crust development re- main unclear. Therefore, this paper which based on the domestic and international research progress and a- chievements in this field over 50 years, had detailed a lot. In order to provide a comprehensive understanding of biological soil crusts development on the cycling process of soil fertility; further, it provides suggestions for e- cosystem restoration in the degraded grasslands of the Loess Plateau, China.
出处
《草业科学》
CAS
CSCD
北大核心
2017年第9期1793-1801,共9页
Pratacultural Science
基金
国家重点研发计划(2016YFC0500506)
国家科技基础性工作专项(2012FY111900)
国家自然科学基金(31572458
31201837)
兰州大学中央高校基本科研业务费专项资金资助(lzujbky-2016-13)
兰州大学"本科教学工程"国家级大学生创新创业训练计划(201510730100)
长江学者和创新团队发展计划(IRT13019)
关键词
生物土壤结皮
干旱半干旱地区
发育过程
生物因素
非生物因素
土壤养分
恢复力
biological soil crusts
arid and semiarid land
development process
biotic factors
abiotic factors
soil nutrients
resilience
作者简介
韩炳宏（1988-），男，甘肃会宁人，助理工程师，硕士，主要从事草地生态学方面的研究。E-mail：hanbh13@lzu．edu．cn
通信作者：牛得草（1981-），男，河南林州人，副教授，博士，主要从事草地营养生物学的研究。E-mail：xiaoca00373@163．com
