1) biomass nitrogen
生物量氮
1.
First,Alpine grassland ecosystems vertical differentiation gradient nitrogen storage laws1 Alpine grassland ecosystems is affected by topography, climate, soil and the impact of a high degree of posters,the genera aboveground biomass nitrogen (Kg N ? m-2) is low,With the elevation,aboveground biomass was slowly increasing in nitrogen.
对高寒草原生态系统氮贮量分异规律的研究分为垂直梯度和水平分布上的植被生物量氮和土壤氮贮量分异规律的研究,并对导致这种差异与变化的主要影响因素进行分析与探讨。
5) biomass N
生物量态氮
1.
Dynamic changes of biomass N and mineral N in red soil amended with ryegrass:;
红壤添加有机质后生物量态氮和矿质氮的消长动态
6) microbial biomass nitrogen
微生物生物量氮
1.
The most important biological indicators characterizing the soil quality are soil microbial biomass carbon (Cmic), microbial biomass nitrogen (Nmic) and mineralized nitrogen (Nmin).
微生物生物量碳、微生物生物量氮和土壤矿化氮是３个重要的表征土壤质量的生物学指标，本文通过实验室培养研究了３种磺酰脲类除草剂（氯磺隆、甲磺隆、苄嘧磺隆）对上述生物学指标的动态影响。
2.
The effect of long-term fertilization on soil organic nitrogen components and microbial biomass nitrogen(B_N) in paddy soils from two experiment sites in Hunan province were studied.
以亚热带2个国家级稻田土壤肥力变化长期定位监测点的土样为对象,研究了长期施肥对土壤微生物生物量氮(BN)和有机氮组分的影响。
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