草地

The grazers keep the grass neat, and I have no liking for unkempt grounds.

草食动物能使草地整洁，我也不喜欢杂草丛生的草地。

The optimal combination of the mixtures was oat (76 kg/hm^2)+vetch (42 kg/hm^2), In this treatment. the dry matter yield reached 5900 kg/hm^2, and increased the yield 51%and 37%than the single culture of oat and vetch respectively. The pure income was 3020 yuan for RMB per hectare.

其中以燕麦76 kg/hm^2和毛苕子42 kg/hm^2混播草地的种间协同效应最佳，干物质产量为5900 kg/hm^2，比燕麦和毛苕子单播分别增产51%和37%；草地纯收入为3020元／hm^2，经济效益显著。

Meadow webworm had come into it's third outbreak cycle since 1996,the larvae population density of first generation was more than 10 000/m~2,and the cumulative areas of damaged grassland reached 1 300 million hm~2 which was increased about 800 million hm~2 than that of the second outbreak cycle.

此周期内该省草地螟累计发生面积近1 333万hm2次，比上个周期增加了近800万hm2，草地螟1代幼虫密度最高达每m210 000头以上，尤其2004年在该省大范围内达到特大发生，有13个县田间百步惊蛾达到万头以上，个别高达50 000头以上。

With the whin growing rapidly,some areas have formed or is coming into preponderant species gradually and caused the drugged grassplot.There is a phenomenon that browsed critter are died because of poisoning.It seriously threatens the grassland agriculture and has made typical"ecological-economic sickness"in above district.

近年来棘豆迅速蔓延生长，在有些地区已经或正在向优势种群演替，造成草地毒草化，出现放牧家畜中毒死亡现象，严重威胁草地畜牧业，已形成了典型的"生态经济病"。

An experiment was carried out in the greenhouse using a three-compartment rhizobox system to study effects of inoculation of arbuscular mycorrhizal fungi Glomus etunicatum, Glomus intraradices and Glomus mosseae on Festuca rubra and Agrostis hugoniana, and soil environment. Results indicate that inoculation had significant effects on AM fungi infection of the plants and plant growth, increasing dry matter and P contents of both ground parts and roots and phosphorus absorption rate of the plants, improving microbial flora in the rhizaphere and water stability of soil aggregates.

采用三室隔网装置，就Glomus， etunicatum、intraradices、Glomus mosseae对2种高山草地植物和土壤环境的影响进行了研究结果表明：接种AM真菌对草地植物的侵染和生长均具显著效应，植株地上部、根系干物重以及含磷量、吸磷量均显著高于不接种处理，菌根菌丝对植株吸磷的贡献率达

On the basis of clean cultivated Pasture of Perennial Lucerne and mixture pasture of perennial awnless brome and Lucerne, the effect of Pasture species and mixing method on Pasture drying rate was analyzed.

用多年生的紫花苜蓿单播草地牧草和多年生无芒雀麦与紫花苜蓿的混播草地牧草，研究牧草种类及调制方法对牧草干燥速度的影响。

As a result, synthesizing the comparison of the characteristics of drought resistance, cold tolerance, barren resistance and production of these ten grasses, we have found that the resistance of Bromus inermis,Festuca arundinacea was better , and consequently Bromus inermis , Festuca arundinacea were proofed to be favorable grasses for developing pasture in northern China in the future. Whereas, Bromus biebersteinii, Festuca rubra,Dactylis glomerata,Phleum pratense,Agropyron desertorum,Agropyron smithii,Elytrigia elongate and Phalaris arundinacea were worse, and therefore measures to local conditions and prudence in the production practice were advocated.

因此，综合抗旱性、耐寒性、耐贫瘠性及田间的生产性能的比较研究，10种牧草中的无芒雀麦、苇状羊茅的抗性表现较好，是今后我国北方地区进行人工草地建设的良好牧草种类；而草地雀麦、紫羊茅、沙生冰草、蓝茎冰草、长穗偃麦草、猫尾草、鸭茅和草芦表现不好，在生产实践中应因地制宜、谨慎推广。

CO2 emission rate higher in the heavily degraded alpine meadow than in the moderately degraded alpine meadow during the plant growing seasons.Ruderal is the dominant species and poison grass is secondary in heavily degraded meadow and Grass or Cyperaceae is only a few.

不同退化程度原状草地CO2通量季节变化五种原状草地CO2释放速率具有明显的季节动态，其变化趋势基本一致，且均表现为正排放。

The study of Elymus sibiricus is important to not only grassland improvement in the northern steppe and Alpine meadow of the Tibetan Plateau but also the development of grassland livestock husbandry.

老芒麦的研究对我国北方草原及青藏高原高寒草甸的退化草地改良、发展草地畜牧业具有重要意义。

In the natural improved grassland with uncultured and resowed,the sorts of grass increased 5～8 varieties,and the height of elymus dahuricus and the sedge respectively was higher than that of the control area for...

在免耕补播改良天然草地方面，草地植被种类增加5～8种，披碱草高度较对照区高出18cm，苔草高出4cm，其总盖度较对照区高出近20%，而施肥试验草层高度较对照区增加了1.5cm，其盖度由55%增加至90%，增幅为35%。

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。