草地

Seawage sludge from Lanzhou Qilihe sewadge purification factory was applied onto Bromus inermis grassland during 1996 and 1998 with three years monitoring, aboveground yield increase on Bromus grassland with appropriate sludge application was 163~203 percent in 1996, 41~120 percent in 1998. Root biomass increase in 1996 was 35~106 percent higher than the control.

为此，笔者於1996~1998年将兰州市七里河区污水处理厂生活污泥施於无芒雀麦人工草地。3年来对无芒雀麦和土壤进行多项监测，结果表明，施用适量污泥对无芒雀麦地上生物量增产幅度显著，1996年为163%~203%；1998年为41%~120%。1996年总根量比对照高35%~106%。

The results indicated that the combination of Bromus inermis plus Medicago sativa (T6) and that of M.sativa plus Poa pratensis (T5) performed the best among all six trials, in respect to their forage yield, community stability and capability in competition with weeds.

结果表明，混播组合T6和T5(紫花苜蓿-草地早熟禾型)在群落稳定性及抗杂草的竞争力等方面表现均佳。

Leaf water content and leaf relative water content of Bromus inermis, Festuca arundinacea, Bromus biebersteinii decreased lightly under severe water stress, while leaf relative electrical conductivity increased lightly. Moreover, the leaf soluble sugar increased significantly, plant height stress index and dry matter stress index were higher, root/shoot ratio had the trend of rise.

在重度水分胁迫下，无芒雀麦、苇状羊茅、草地雀麦叶片含水量和叶片相对含水量下降幅度较小，叶片相对电导率增加幅度较小，叶片可溶性糖含量上升幅度较高，株高胁迫指数和干物质胁迫指数也较高，根冠比保持上升趋势。

In the aspect of grass cold tolerance, these ten grasses were classified into three types by the cluster analysis, based on winter survival adaptability and LT50 measured under low temperature treatment. High cold tolerance: Bromus biebersteinii,Bromus inermis,Festuca arundinacea, Agropyron desertorum,Elytrigia elongate, Phleum pretense; medium cold tolerance: Festuca rubra, Agropyron smithii,Dactylis glomerata; low cold tolerance: Phalaris arundinacea.

禾本科牧草在耐寒性方面，根据牧草越冬适应性表现和低温处理下用电导法得出的半致死温度， 10种牧草进行聚类分析结果表明：耐寒性强的是草地雀麦、无芒雀麦、苇状羊茅、沙生冰草、长穗偃麦草、猫尾草；耐寒性中等的是紫羊茅、蓝茎冰草、鸭茅；耐贫瘠性最弱的是草芦。

By the cluster analysis, 10 grasses were classified into three types—of high barren resistance: Bromus inermis,Festuca arundinacea, Dactylis glomerata; of medium barren resistance: Bromus biebersteinii,Phleum pratense,Phalaris arundinacea; of low barren resistance: Festuca rubra, Agropyron desertorum,Agropyron smithii,Elytrigia elongate.

对10种牧草进行聚类分析，得出耐贫瘠性强的是无芒雀麦、苇状羊茅、鸭茅；耐贫瘠性中等的是草地雀麦、猫尾草、草芦；耐贫瘠性最弱的是紫羊茅、沙生冰草、蓝茎冰草、长穗偃麦草。

In order to select a kind of eminent grass which is adaptable to the northern China, the present thesis studies ten kinds of grasses from Gramineae, Bromus biebersteinii,Bromus inermis,Festuca arundinacea ,Festuca rubra,Dactylis glomerata ,Phleum pratense,Agropyron desertorum,Agropyron smithii,Elytrigia elongate and Phalaris arundinacea,and also explores the physiological aspects of their drought resistance, cold tolerance and barren resistance. The drought resistance experiment was conducted to study 10 grasses under water stress during seedling stage by simulating indoor drought environment.

为了能选适应我国北方地区的抗旱、耐寒、耐贫瘠特性的优良牧草，本研究以草地雀麦、无芒雀麦、苇状羊茅、紫羊茅、沙生冰草、蓝茎冰草、长穗偃麦草、猫尾草、鸭茅、草芦为材料，在抗旱、耐寒和耐贫瘠性特性三方面的生理方面进行了探索研究。

As the shortage of water resource is seriously,reclaimed water has been used on turf as substitute of fresh water.3 types of water(fresh water,fresh+reclaimed water,and reclaimed water)were used to irrigate 5 common turfgrasses(Poa pratensis,Festuca arundinacea,Zoysia japonica,Buchloe dactyloides,Radix liriopes) during 2003-2005;the growth characters and sensory quality of turf grasses and soil responses were investigated.

随着城市绿地与人争水的问题日益突出，再生水作为替代水资源在草坪草上的应用日益广泛。本试验于2003-2005年用3种类型灌溉水(清水、&清水+再生水&、再生水)处理5种草坪草(草地早熟禾、高羊茅、结缕草、野牛草和山麦冬)，从观赏品质和生长指标方面进行耐污性评价，并分析再生水对土壤的影响。

The results showed that"shrub＋grass＋vine"was the most favorable pattern for vegetation recovery in the area of Jinsha River hot-arid valley. Among them, the combination of"Cajanus cajan + Setaria sphacelata + Festuca arundinacea + Macroptilium atropurpureum"significantly improved the grassland vegetation coverage and litter weight.

结果表明，&灌＋草＋藤&最适宜金沙江干热河谷区的植被重建，其中&木豆＋非洲狗尾草＋高羊茅＋大翼豆&建植模式显著地提高草地植被盖度和凋落物重量。

Through high glass walls, one section of the restaurant looks out on candlelit front-lawn dining in another.

透过高高的玻璃，可以看到一片位于草地之上的烛光晚餐区。

The assignment was finding out the candys scattered everywhere.

该点任务是在大草坪某个草地找到散落在草丘各处的糖果。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。