查询词典 grassland

The study on water use of the alfalfa grassland and stipa bungeana grassland in Ningxia Yanchi.

宁夏盐池长芒草天然草地和苜蓿人工草地水分利用研究。

The results showed that soil microbial numbers and biomass in Leymus chinensis and Stipa grandis grassland were higher than those were in degenerative Artemisia frigida and sandy rare-tree grassland significantly.

典型草原不同生态分布类型的土壤微生物量大小有显著不同，土壤微生物的数量与生物量的分布规律基本一致，且与土壤有机质的分布相关联。

Through analyses and assessment of Hulunbeier grassland ecosystem as a case study, the value of the grassland ecosystem and indirect value of ecosystem services in Stipa baicalensis steppe under different grazing intensities, qualitative study of h.

本研究以呼伦贝尔草地为研究对象，通过分析与评价呼伦贝尔草地生态系统提供的生态系统产品和服务功能的生态经济价值，以及不同放牧强度下贝加尔针茅草地的间接服务功能价值，定量研究呼伦贝尔草地生态系统为人们所带来的巨大的生态经济效益，以期为保护、建设和促进呼伦贝尔草地资源的可持续利用和发展奠定基础。

Planted forests can deplete deep soil water, forming an obstacle to sustainable land use in the semi-arid area of Loess Plateau. The purpose of this study was to examine effects of grazing and cropping on replenishment of deep soil water where forest plantations had depleted soil moisture at depths of 2～9.9 m. We compared soil moisture on plantation plots with that on plots where plantations were replaced by crops, grazed grassland, and ungrazed grassland seperately.

为了研究黄土丘陵半干旱区人工林迹地土壤水分恢复情况，该文以正在生长的人工林土壤水分含量为人工林迹地土壤水分恢复的起点，并分别以持续农地和持续放牧荒坡的土壤含水量为林后农地和草地土壤水分恢复的上限，对位于黄土丘陵半干旱区绥德县境内的人工林迹地土壤水分恢复情况进行了研究。

In order to evaluate the influence of zokor's consuming and excavating on pasture, the vegetation on zokor mounds was studied by index of grassland quality. The result indicates that,with the succession, the index of grassland quality increases strikingly.

为了评估鼢鼠觅食掘洞行为对草地牧草质量的影响，采用草地质量指数分析了鼢鼠土丘植被状况，结果表明：随着演替的进行，鼢鼠土丘草地质量指数显著增加。

We have set up the following targets on greenhouse gas emission control to be met in 2010: cut energy intensity by around 20 percent from the 2005 level, increase the share of renewable energy in primary energy supplies to 10 percent, keep industrial emissions of nitrous oxide at the 2005 level, increase forest cover to 20 percent, add 24 million hectares of grassland, treat 52 million hectares of degraded, sandified and alkalinized grassland, increase the share of nature reserves to about 16 percent of China's total landmass, and treat 22 million hectares of desertified land.

我们明确提出了控制温室气体排放的具体任务，包括到2010年实现单位国内生产总值能源消耗比2005年降低20%左右、可再生能源在一次能源供应结构中的比重提高到10%、将工业氧化亚氮排放稳定在2005年水平，同时努力实现森林覆盖率达到20%、新增改良草地2400万公顷、治理退化和沙化及碱化草地5200万公顷、自然保护区面积占国土总面积比例达到16%左右、治理荒漠化土地面积2200万公顷等。

As the important part of the grassland ecosystem., soil faunas have been used in research of many problems caused by the grassland sustainable use.

土壤动物作为草地生态系统的重要组成部分，在草原可持续利用前提下已经开始进行研究。

The results show that an internal and mutual transformation of land-use types cause striking changes in soil erosion extent. The transition of cultivated land to woodland and grassland medicates erosion intensity, and the one from forestland to cultivated land and grassland aggravates erosion. In addition, land-use practices, including mainly human activities, have impacts on the content of suspended sediment.

研究表明，本区土地利用类型的内部转化和相互转化引起土壤侵蚀程度的明显变化；耕地向林地、草地的转化使侵蚀强度指数显著降低；林地向耕地、草地转化，均显著增加侵蚀强度指数；耕地、林地、草地的内部转化对土壤侵蚀也有少量影响。

Grassland and face to face the sea are very similar to the feeling, but in my view, the grassland to a more cordial, more soft, more familiar, more simple, more calm.

面对草原和面对大海有很相似的感觉，但在我看来，草原来的更亲切、更柔软、更熟悉、更简朴、更平静。

The area of severely degraded grassland had increased to 818.97 km 2. In some places and in some periods overstocking did occur, but the grassland as a whole was not overgrazed. The degradation of local grasslands could be due to the...

在个别地区、个别时间、局部草地有超载，但从整体上讲，整个草地并不过牧；全球气温升高所引起的荒漠化，应是处于半干旱—半湿润干旱区的达日县草地退化、大片黑土滩产生的主要原因。

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。