生物量

According to the investigation on the local situation of aquatic vegetation in Littoral Regions of Gonghu Lake and Meiliang Bay of the Wuxi Taihu Lake, the species of aquatic vegetation, community forms and biomass were acquired. Then a contrast of vegetation distribution characteristic between the two Littoral Regions was analyzed which induced to the analysis of impact factors. In the treatments designed as varying degree oxidation intimidate, the heavy metal cadmium and the ammonia nitrogen single and compound poisons, the COD sewage cultivate, the plant growth opsonin processes, the effect of the intimidate environment on the submerged plant growth and the physiological biochemistry characteristic was analyzed. The effective method to improve the resist adversity of submerged macrophyte was discussed. The results will give a suggestion to the restoration of the submerged macrophyte, the efficiency and reconstruction in Lake Ecosystem.

通过对无锡太湖两重要湖湾贡湖和梅梁湖湖滨带沿岸浅水区水生植被现状进行调查，了解了水生植物的种类、群落组成及生物量，对两湖湾湖滨带沿岸浅水区水生植被分布特征进行了对比，并进行了影响因素分析；通过不同程度的氧化胁迫、重金属镉与氨态氮单一和复合作用、高COD生活污水胁迫培养、植物生长调节素处理，分析胁迫环境和壳聚糖各自对沉水植物生长的影响及作用机理，探讨提高沉水植物逆境抗性的有效措施；探寻沉水植物修复的理论依据和有效途径，为急待进行水生植被恢复的湖泊提供依据和建议。

In the whole watershed, the average soil water storage of farm land, grass land, orchard land, and forest land are 465.3 mm, 452.8 mm, 450.2 mm, and 424 mm in 2 m soil profile; and 627 mm, 620.6 mm,

而在同一地理位置，土壤的水分分布又受坡度、坡向、坡位、植被类型、植被密度和生物量的影响，表现出一定的空间变异特性

Algal biomasses(100 mg fresh weight) were transferred to 5mM Hepes buffer (pH 6.8) containing 2.2 mM Ca or fresh modified Woods Hole medium(with 1/100th of the orthophosphate concentration)spiked with 15 or 30μM Zn and 10μM Pb(used as nitrates, p.a.).

藻类生物量（鲜重100毫克）被转移到5毫米疱疹缓冲液（pH 6.8），其中载有2.2毫米的钙或新修改的伍兹霍尔介质（与百分之一的正磷酸盐浓度）上涨15或30μM锌和10μm的铅（用作硝酸盐，巴勒斯坦权力机构）。

An experiment was conducted to investigate the effects of salt stress on biomass, activated oxygen metabolism and osmoregulation content of split-root Leymus chinensis seedlings in an auto-rain-shelter greenhouse.

在自动控制的遮雨棚中，研究了200 mmol·L-1NaCl胁迫对不同分根处理羊草幼苗生物量、活性氧代谢以及渗透调节物质含量的影响。

The carbon storage in different organs was positively related to the biomass of corresponding organs. Stem accumulated the highest carbon storage, comprised 52.20% of carbon storage in overstory trees, the rest in branch, leaf, bark and root, etc., seized 47.80%. The annual net productivity of 7-year-old A. crossicarpa plantation was 20.06 t/(hm^2a) and annual carbon fixation was up to 9.86t/(hm^2a).

厚荚相思各器官碳贮量与其生物量成正比例关系，树干的碳贮量最高，占乔木层碳贮量的52.20%，树枝、树叶、树皮和树根等碳贮量共占乔木层的47.80%。7年生厚荚相思人工林乔木层年净生产力为20.06t/(hm^2a)，碳素年净固定量为9.86t/(hm^2a)。

Straw application, whether straw mulch or incorporated straw with soil, increased the content of soil labile organic carbon and incorporated straw with soil as more beneficial to the increase of the contents of hot water-extractable carbon, potentially mineralizable carbon acid-extractable carbon, readily oxidizable carbon, particulate organic carbon, and light fraction organic carbon.

表施秸秆和混施秸秆均能使土壤活性有机碳含量增加或显著增加，混施秸秆较表施秸秆更有利于热水提取态碳、可矿化碳、酸提取态碳、易氧化态碳、颗粒有机碳和轻组有机碳含量增加，而可溶性有机碳和微生物生物量碳的变化与秸秆施用方式关系不大。

As pairs of connected ramets were subjected to reciprocal patchiness of light and nutrients, stolon connection between the two ramets significantly enhanced biomass of both ramet growing in low light intensity but high soil nutrient condition and ramet growing in high light intensity but low soil nutrient condition as well as whole ramet pairs (consisting of LH ramets and HL ramets).

当生长于高光照低养分条件下分株与生长于低光照高养分条件下分株之间的匍匐茎连接时， 3种克隆植物HL分株、LH分株以及整个分株对系统(HL分株+ LH分株)的生物量均得到显著提高。同时， LH分株根冠比显著增加，而HL分株根冠比显著下降。

There was a low accumulation of Pb in Pelargonium horlarum. When the Pb concentration in soil was increased by 1500 mg/kg, the Pb was accumulated by 169.5 mg/kg only. The plant content of Pb was lower than the hyperaccumulator critical content. The shoot' accumulation of Pb was significantly higher than that of root.

随着土壤中铅浓度增加，与对照相比，生物量在铅浓度增加1000 mg/kg时，才有显著下降；但对铅的吸收量较低，当土壤中铅浓度增加1500 mg/kg时仅吸收169.5 mg/kg；地上部分吸收量远小于地下部分的吸收量，转移系数小于0.5。

In constant 25 ℃, FTHEB 1001 will bloom under the photoperiod of

在系列的光周期实验中，以10 L /14 D光周期处理100天下，植株的生物量最高。

Thus it can be seen that the suitable amount and ratio of NP or NPK application impels the formation of photosynthate, hoists the biomass, grain yield, accelerates the synthesis of starch and fat, and obtains high yield and good quality.

由此可见，适宜的氮磷和氮磷钾肥用量和比例促进光合产物形成，提高生物量、籽粒产量、加速合成淀粉和脂肪，得到高产量和好品质。

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。