| 土壤微生物量氮含量、矿化特性及其供氮作用 |
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| 引用本文： | 周建斌,陈竹君,李生秀. 土壤微生物量氮含量、矿化特性及其供氮作用[J]. 生态学报, 2001, 21(10): 1718-1725 |
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| 作者姓名： | 周建斌 陈竹君 李生秀 |
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| 作者单位： | 西北农林科技大学资源与环境学院, |
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| 基金项目： | 国家自然科学基金(39470409)和杨凌农业高新技术示范区基金项目 |
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| 摘 要： | 论述了土壤中微生物体氮的含量及其影响因素，土壤微生物量氮的矿化特性及其与土壤矿化氮间的关系，土壤微生物量氮含量与土壤供氮指标间的关系等。提出研究不同生态系统中土壤微生物量氮的含量及其变化规律，不同耕作栽培措施对土壤微生物量氮含量的影响。土壤微生物量在土壤氮素保持和释放中的作用，土壤微生物量氮的转化率与其供氮量间的关系；土壤微生物量氮与作物氮素吸收间的关系等，是土壤微生物量氮方面应重点研究的问题。
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| 关 键 词： | 土壤 微生物量氮 氮素矿化 供氮作用 |
| 文章编号： | 1000-0933(2001)10-1718-08 |
| 收稿时间： | 2000-03-30 |
Contents of soil microbial biomass nitrogen and its mineralized characteristics and relationships with nitrogen supplying ability of soils |
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| ZHOU Jianbin,CHEN Zhujun and LI Shengxiu. Contents of soil microbial biomass nitrogen and its mineralized characteristics and relationships with nitrogen supplying ability of soils[J]. Acta Ecologica Sinica, 2001, 21(10): 1718-1725 |
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| Authors: | ZHOU Jianbin CHEN Zhujun LI Shengxiu |
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| Affiliation: | College of Resource & Environment; Northwest Sci- Tech University of Agriculture and Forestry; Yangling; Shaanxi; 71 2 1 0 0; China |
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| Abstract: | As soil microorganisms decompose the organic matter,they also assimilate a portion of the nutri- ent in soils to build their body.The nutrients in soil microbial biomass are mineralized from the dead mi- croorganisms.Therefore,soil microbial biomass is considered as a source and sink for nutrients,and is an active pool of organic matter in soils.Because of its important role in various ecological systems,nitrogen contained in soil microbial biomass(i.e.,SMBN) has got much attention in recent years.This ... |
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| Keywords: | soil microbial biomass nitrogen mineralizable N N supplying ability |
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