查询词典 biomass

In addition, the paper analyzed and simulated growth process of stand basal area, volume and biomass under different initial planting density for Cunninghamia lanceolate, plantation.

另外，对杉木不同初植密度下林分断面积、蓄积和生物量的生长过程进行了分析和模型拟合。

The biomass and soil organic carbon stock reduced by 24% and 10% from the first to the second rotation of Cunninghamia lanceolata plantations, respectively, and by 39% and 15% respectively from the second to the third rotation.

地力维护措施可在很大程度上防治连栽人工林生物量和土壤有机碳贮量的下降，2代杉阔混交林生物量和土壤有机碳贮量分别比2代纯林提高69%和19%；2代按树与相思属树种的混交林生物量比2代按树纯林增加29%；施肥可使2代杉木人工林生物量提高22%。

The changes of Cynodon dactylon propagules under flooding were studied in morphology and biomass.

研究了水淹条件下狗牙根繁殖体的形态特征和生物量的变化及其水淹后的恢复状况。

It suggested that Cynodon dactylon had strong toleration to flooding by prolonging stem, changing leaf shape and reducing biomass.

实验表明狗牙根繁殖体通过延长茎长、改变叶形和减少生物量等方式对水淹显示出较强的耐受能力。

The average biomass removal rate of TN and TP of Canna indica and Cyperus alternifolius was 21.69 and 7.97 mg/, 12.31 and 5.95 mg/, respectively.

对污水中TN、TP的去除率，美人蕉达到84%、80%，伞草达到77%、72%；对TN、TP的平均生物量去除速率，美人蕉为21.69、7.97 mg/，伞草为12.31、5.95 mg/。

In this article,Canna,Cyperus and Penisetum were grown in artificial solution contained heavy metals such as lead and chromium to investigate their endurance to the two kinds of heavy metal.The experiment results showed that lead and chromium could decrease the height and biomass of plants even at low concentration of 2.0mg/L.

随着工业的迅速发展，各种工业废水和固体废弃物的渗出液直接排入水体，致使水体中重金属铅(Pb2+)和铬(Cr6+)等含量越来越高[1]，重金属不能像其他有机化合物那样可自然降解或生物降解，往往存在水体或沉积到水域底部或被水生植物浮游植物。

The fungal biomass and dye decolorization had a positive relationship under the condition of different carbon and nitrogen sources.

对菌丝生物量和染料脱色率的研究表明，在不同碳源和氮源条件下，两者之间具有明显的正相关性。

As a result, the P schrenkiana population has reverse-J shaped DBH class, age structure and tree density patterns but with a bell-shape biomass pattern. The Schrenk spruce population also has a classical linear survivorship curves between Deevey Ⅱ and Deevey Ⅲ type.

研究结果表明中部天山雪岭云杉种群的胸径、年龄结构和种群密度都呈倒－J型分布，种群生物量呈钟型分布，存活曲线基本介于Deevey Ⅱ和 Deevey Ⅲ型之间。

The influence of elevated CO2 and temperature on biomass production of continuosly defoliated white clover.

中国农业气象，1994，15(3)：44—486 杜宝华，洪佳华，司君智等。农田土壤CO2释放量的测定。

Cupers and Pelletizers densify all kinds of biomass and municipal waste into " energy cubes".

在其中燃料输送到气化炉形成了对经济的影响气化。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。