1) Light fraction organic carbon
轻组有机碳
1.
The contents of soil active organic carbon(light fraction organic carbon,dissolved organic carbon,and microbial biomass carbon) of surface soil samples(0-10 cm,10-20 cm) were investigated at five different land use sites in Jian′ou City,Fujian Province,China.
对福建省建瓯市山地红壤的园地(茶园、桔园)、林地(杉木、木荷、封育)不同土层(0-10 cm、10-20 cm)土壤活性有机碳(轻组有机碳、可溶性有机碳、微生物量碳)含量进行研究。
2) light fraction
轻组有机碳
1.
With rapeseed fields having been reclaimed from alpine meadow for 0,10,20 and 30 years at the Haibei Research Station,Chinese Academy of Sciences as test objects,this paper studied the changes of soil organic carbon(SOC) and its fractions including light fraction organic carbon(LFOC) and heavy fraction organic carbon(HFOC)) in 0～10,10～20,20～30 and 30～40 cm soil layers with reclamation duration.
在中国科学院海北高寒草甸生态系统定位站地区,选择高寒草甸开垦后形成的农田(种植春油菜)作为研究对象,开垦年限分别为0、10、20和30年,利用土壤有机碳密度分组法,对0~10 cm、10~20 cm、20~30 cm、30~40 cm土层土壤有机碳(SOC)及不同组分(轻组有机碳LFOC,重组有机碳HFOC)含量及随开垦年限变化关系进行了研究。
2.
The SOC contents and its fraction in soil physical fraction (light fraction organic carbon (LFOC) and Heavy fraction organic carbon (HFOC)) in 0-40cm soil depth were investigated.
在中国科学院海北高寒草甸生态系统定位站地区,选择高寒草甸开垦后形成的一年生人工草地作为研究对象,开垦年限分别为0、1、11、16和20年,利用土壤有机碳密度分组法,进行了0-40cm土层土壤有机碳及不同组分(轻组有机碳。
3) light fraction organic carbon
轻质有机碳
1.
Effects of soil-surface mulching on organic carbon,inorganic carbon and light fraction organic carbon in dryland soil
不同地表覆盖栽培对旱地土壤有机碳、无机碳和轻质有机碳的影响
4) light fraction organic matter
轻组有机质
1.
Seasonal variation of light fraction organic matter in degraded red soil after vegetation restoration;
退化红壤植被恢复后土壤轻组有机质的季节动态
2.
In this article, we reviewed the latest studies of the sensitive evaluation indicator of effects of land-use change on the soil carbon pool, including the microbial biomass carbon and microbial quotient, CO2 flux and qCO2, light fraction organic matter and particulate organic matter, and dissolved organic carbon.
综述了目前国内外在监测土地利用方式对土壤有机碳动态的影响时所采用的一些敏感性指标:微生物量碳和微生物商、CO2通量和qCO2、轻组有机质和颗粒态有机质、溶解态有机碳(DOC)。
5) LFOM
轻组有机质
1.
Besides,intrinsic OM quality is an important factor which effects mineralization:after the removal of light fraction OM(LFOM) and dissolved OM(DOM),the net mineral-N and mineral-P as well as the N and P mineralization rates were decreased.
而有机质的质量是影响有机氮磷矿化的重要因素:轻组有机质(LFOM)一方面可作为氮磷矿化的潜在源,另一方面其去除会破坏沉积物团聚体中的胶结物,使得无机氮磷释放量显著增加;溶解性有机质(DOM)含量影响沉积物中微生物生物量氮和脲酶活性,而且其本身也可作为氮矿化的潜在源,因此LFOM和DOM的去除会使得有机氮磷的矿化量和矿化速率均减少。
2.
The effect of light fraction organic matter(LFOM) on nitrogen(N) and phosphorus(P) mineralization in the sediments of Taihu Lake was investigated under continuously water-logged incubation.
采用连续淹水培养试验研究轻组有机质(LFOM)对鼋头渚(Y)和贡湖(G)2种不同污染程度太湖沉积物氮、磷矿化的影响。
6) organic carbon fractions
有机碳组分
1.
The variation of organic-mineral complex content and the distribution characteristics of organic carbon fractions in black soil plough layer under different tillage periods;
不同开垦年限黑土耕层有机无机复合体变化及有机碳组分分布特征
2.
The effects of agricultural land uses on soil organic carbon fractions and aggregate stability were studied in an Fluvo-aquic soil in Yucheng city,Shangdong Proince of Northern China.
以在华北平原具有代表性的禹城市作为研究区域,系统研究和分析了该地区不同农业土地利用对土壤有机碳组分和团聚体稳定性的影响。
3.
A field experiment was conducted to determine the effects of different nutrient regimes on aquatic soil organic carbon fractions and aggregate stability in Northern China Plain.
在田间条件下,通过对7种肥料结构组合处理下的土壤进行采样和分析,系统地研究和比较了不同养分模式对华北平原潮土土壤有机碳组分和土壤团聚体稳定性的影响。
补充资料：碳标记有机化合物
分子式：
CAS号：
性质：碳标记有机化合物品种很多，常用的多以13CO2和Bal3CO3为起点合成。13CO2与H2在300～350℃ Ni催化剂上反应制13CH4。Bal3CO3与Ba加热生成Bal3C2再与水反应生成13C2H2。LiBH4还原13CO制H13COOH等。
CAS号：
性质：碳标记有机化合物品种很多，常用的多以13CO2和Bal3CO3为起点合成。13CO2与H2在300～350℃ Ni催化剂上反应制13CH4。Bal3CO3与Ba加热生成Bal3C2再与水反应生成13C2H2。LiBH4还原13CO制H13COOH等。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条