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We find these microscope characters through research are as follows:ratio betweenstoma\'s length and wide,stoma density and stoma index,the shape of epidermalcells,the anticlinal wall,palisade\'s layer,the type of ventilating cavity,type of limb,trichome ect.

这表明了25种植物的叶片既具有中生植物又兼有旱生和湿生植物的部分结构特征,这些现象说明了这些特征是这些植物对高寒地区低氧、低温、强辐射等自然条件长期适应的结果。7。

Triticale is widely cultivated in high and cold district in home and abroad in recent years .

小黑麦是小麦和黑麦之间人工合成的新型作物,不仅产量潜力高、营养品质好、粮饲兼用、而且对不良环境有很好的适应性,近年主要在国内外高寒地区扩展种植。

Its mining area is turfy belong to Gao Han tall latitude is low a grass of bulrush liver mosses, base is turfy treatment facilities is advanced, technical force is abundant.

其矿区泥炭属高寒高纬度低位芦苇苔草型,基地泥炭加工设备先进,技术力量雄厚。

Managing wildlife: A spatial information system for GPS collars data Francesca Cagnacci, Ferdinando Urbano* Centre for Alpine Ecology, Viote del Monte Bondone, 38040 Trento, Italy Received 22 December 2007,-奖学金网; received in revised form 11 January 2008; accepted 14 January 2008 Available online 25 February 2008 Abstract ISAMUD (Integrated System for Analysis and Management of Ungulate Data) is an integrated and modular software platform developed to manage GPS collar data for wildlife management.

管理野生动物:空间信息系统的GPS衣领数据弗兰切斯卡cagnacci , ferdinando尔巴诺*中心的高寒生态, viote Del Monte的邦多内, 38040 Trento ,意大利收到2007年12月22日;收到的订正形式, 2008年1月11日;接受2008年1月14日在网上提供2008年2月25日摘要 isamud (集成系统的分析和管理的有蹄类动物的资料)是一种集成和模块化的软件平台的开发管理全球定位系统的衣领数据野生动物管理。

It is to conduct alpine upland ecological agricultural sightseeing based on the original ecological agriculture.

在原有的生态农业基础上,开展高寒山地生态农业观光游览项目。

The activity of Urase and Sucrase in different degradation stages showed significant variance (P.05); the activity of Urase in different soil layers were significant P.

草甸退化使土壤脲酶和蔗糖酶活性出现了显著变化(P.05),脲酶活性在不同土层间差异显著(P.05),蔗糖酶没有表现出土体层次性差异;相关分析表明,高寒草甸的土壤酶活性与营养成分含量之间相关不显著。

Climate change will intimidate the endangered species and the species that has accustomed to cold weather, such as, panda, Yunnan snub - nosed monkey, white-lipped deer, Taiwania flousiana Gaussen, Ammopiptanthus mongolicus and Tibet's antelope.

未来气候变化将对濒危物种的栖息地及气候适应范围狭窄的高山物种,已适应青藏高原高寒气候的物种和迁移能力弱的物种,如大熊猫,滇金丝猴,白唇鹿,秃杉,沙冬青和藏羚羊等造成威胁。

We measured the photosynthesis of Roegneria kamoj, Polygonumsphaerostachyum, Koeleria cristata, Kobresia myosuroides, Ligularia sagitata and Anaphalis lacteal under different soil status and investigated the variations ofcommunity composition after fertilizer to find out the mechanism ofαdiversityformation at local community level. At metacommunity level, we compared the effectsof distance and environmental gradient on the community similarity indexes of fourdifferent locations in two hills to seek the mechanism of D diversity formation.

在局域群落中,以高寒草甸植物群落的重要组分种:鹅观草、球花蓼、洽草、嵩草、箭叶橐吾和乳白香青为对象,通过施肥处理后光合能力以及群落结构的变化探讨α多样性的形成机制;在集合群落水平上,通过对比两座相距180 m山坡上4个不同坡向样方间群落相似性与距离和环境梯度的相互关系,探讨β多样性的形成机制。

The area of the production of Avena nuda decreased to 17,000 hm2 in 2007,which will still decrease gradually.

忻州市莜麦主要分布在管涔山一带的高寒山区,属于农牧交错混合生态区域。

Uses method which the field investigation sample and the indoor analysis unify, 2007-2008 years live the unicast awnless brome lawn and the awnless brome and the alfalfa interlacing in the Inner Mongolian nationality university agriculture school test farm take 2 years mix broadcast the lawn and the colleague mix broadcast the lawn as the objects of study, have studied under the different sowing seeds way the forage grass to the soil physics and chemistry nature influence, finally indicated:the change tendency which under the different sowing seeds way increases the soil bulk specific gravity overall along with the soil layer depth to present after reduces first increases, is the 10-20cm soil layer is lowest; Looking from the 0-40cm soil layer's mean value, the unicast awnless brome lawn soil bulk specific gravity is smallest, the colleague mixes broadcasts the lawn soil bulk specific gravity to be biggest.

科尔沁草原是典型的农牧交错地区,长期以来,由于不合理利用草地资源造成该区生态环境严重恶化,农牧业生产受到严重影响[1]。建立高产优质的人工草地是解决我国高寒地区草畜供求季节不平衡的矛盾,促进草地畜牧业持续发展的关键措施之一[ 2]。无芒雀麦和紫花苜蓿都是营养价值高、适口性好、抗寒抗旱能力强的多年生牧草。将这两种牧草混播不仅能提高牧草产量和品质,延长草地使用年限,还能改善牧草的营养,提高牧草的适口性,有利于调制和青贮[3]。

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