查询词典 grassland

Oxytropis glabra, Oxytropis aciphylla and Oxytropis racemusa are economic plants with medicinal values. Distributed widely in Inner Mongolia grassland and desert regions, these three species also have important ecological and feeding values.

棘豆属的小花棘豆、刺叶柄棘豆(O.aciphylla)、砂珍棘豆在内蒙古的草原区和荒漠区广为分布，它们不仅是有药用价值的经济植物，还有重要的生态和饲用价值。

In 2001-2003,study to direct-sowing Trifolium pratense Minshan to improve degraded Pedicularis longiflora mountain grassland meadow was carried out.

2 0 0 1 -2 0 0 3年进行了岷山红三叶Trifolitmpretense直播改良长花马先蒿Pedicularislongiflora退化山地草甸效果研究。

A greenhouse study was conducted to learn the effect of introduced or indigenous mycorrhizae species on the growth and phosphorus uptake of Pennisetum flaccidum ,which was a sand fixation plant on the grassland of the Tibetan plateau.

采用盆栽方法，就外源菌种、土著菌种对固沙植物白草( Pennisetum.flaccidum )生长和吸磷效率的影响进行了研究。

Pical of the grassland dwellers of the continent is the American antelope, or pronghorn.

美洲羚羊，或称叉角羚，是该大陆典型的草原动物。

The ramet populations of the species at OSES and Inner Mongolia Grassland Ecosystem Research Station and those under conditions of monoculture and mixed with different species were compared.

对内蒙古沙地站和内蒙古草原站的单种沙鞭分株种群的比较和在各站对单种和混交沙鞭分株种群的比较发现，不同地点和在不同群落条件下的沙鞭分株种群在许多重要性状上都存在差异。

Under light, middle and heavy degradation, with the increase of degradation, the vegetative ramet capacity of the clones increased, while their reproductive ramet capacity decreased. A typical landscape of "black soil beach" appeared in grassland with extreme degradation; the growth of the clones was in a lowest level.

在轻度、中度和重度退化程度下，随着退化程度的增加，高山嵩草无性系营养分株能力加强，生殖分株能力减弱；极度退化的草地已呈现典型的&黑土滩&景观，高山嵩草的克隆生长维持在最低水平。

The feasible number of the first classification and the appropriate pattern of recoding can be used in the process of grassland desertification remotesensing monitoring in Inner Mongolia.·-Renverse principal component analysis is a kind of technique to decrease correlation and stand out the useful information.

主成分变换一逆变换处理是是一种数据压缩和去相关技术，主要目的就是把原来多波段图像中的有用信息集中到数目尽可能少的新的主成分图像中，并使这些主成分互不相关，从而突出有效信息。

Due to the forest litter layer is thicker than the grassland, its soil structure is looser and has higher water and organic matter content in the solum. In addition, the rhizomatic growth of forest community vertical structure has obvious differences on the herbosa in the pore size distribution and the infiltration rate.

由於林地较草地的枯枝落叶层为厚，使其土壤结构较松散，并会增加表层土壤水分保持及有机质含量，再者，森林及林下植物相较於草类根系的生长及分布情况，对於不同土壤深度之大小孔隙的比率及水分入渗速率具有明显的差异。

Rumex nepalensis Spreng is a kind of weed in Alpine rangeland in northwest Yunnan province. It is usually considered as an important representation of grassland degradation.

土大黄Rumex nepalensis Spreng是中国云南滇西北高山牧场的一种蓼科多年生杂草，通常被看作是牧场退化的重要表现之一。

It showed that the niche breadth and niche overlapping indexes of the enclosed grassland in 2007 are much lower than in 2006 as a whole; The niche breadth of Artemisia ordosica is bigger than other species in the region in 2002. In 2003, the dominant species were Artemisia ordosica and Salsola ruthenica. Their niche breadth indexes were 0.544 and 0.460 respectively. The results of niche overlapping in 2006 and 2007 also showed that the species with big niche breadth didn't always have big niche overlapping, and the niche breadth and niche overlapping did not have a positive direct linear relation.

结果表明：2007年封育区植物种的生态位宽度及种间的生态位重叠指数总体上较2006年有所降低；2006年黑沙蒿生态位宽度最大，达0.768，是06年封育区的优势种；2007年封育区的优势种为刺沙蓬和黑沙蒿，其生态位宽度值分别为0.544、0.460；2006年和2007的生态位重叠结果均表明，生态位宽度大的物种不一定和其他物种有大的重叠指数，较高的生态位宽度和较高的生态位重叠之间并不存在直接的线性关系；2006年、2007年较高的Pianka生态位重叠指数都出现在生态位宽度较小的物种之间。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。