查询词典 grassland

Construction of returing the gain polts to grass project area of Sangequanzi Shawan County completely change that we do not understand great role of grass land in dry land ecological system and an important position in national economy development for a long time,also influence on social thought of stressing agriculture to the neglect of animal husbandry,stressing animal husbandry to the neglect grass and neglect grass and low-priced grass,and throughly changes grassland construction and many other measures being not practicable,especially the step of grass land construction do not meet the needs of ecological development present situation.

文摘：沙湾县三个泉子退耕还草项目区的建设，彻底改变了长期以来由于草地在陆地生态系统中的巨大作用和在国民经济发展中的重要地位未被充分认识，加之受传统的重农轻牧，重牧轻草，轻草贱草等社会思想的影响，彻底改变了草地建设等许多措施没有落到实处，尤其是草地生态建设的步伐远远不能适应生态环境发展要求的现状。

Writing in the January issue of the Journal of Applied Ecology, Italian ecologists warn that ski pistes above the tree line result in fewer species and lower numbers of birds compared with natural grassland at similar altitudes.

写在2005年1月发行的应用生态学杂志，意大利生态学家警告说，工作渠道滑雪以上树木线导致更少的种类和数量较低的鸟类相比，天然草原类似709 。

Writing in the January issue of the Journal of Applied Ecology, Italian ecologists warn that ski pistes above the tree line result in fewer species and lower numbers of birds compared with natural grassland at similar altitudes.

写在一月号的JOURNAL应用生态学生态学家警告说，意大利滑雪pistes树线以上导致少种鸟类数量相比，降低天然草原在海拔相似。

Situated in the paramos grassland region, the Source Area of Yellow River is at high elevation with cold climate.

黄河源区地势高亢、气候寒冷，属高寒草原区，是黄河的主要水源补给区。

A survey of the Dahe Bay vegetation in Jin-ping cascade hydropower station setting along the river stream in Sichuan province, China, was performed. A total of 132 plant species and 4 environmental factors in 50 sample quadrats were recorded. Assemblages of Jin-ping Dahe Bay were classified using two-way indicator species analysis, ordinating by detrended correspondence analysis. Seven vegetation assemblages were divided by TWINSPAN classification, in which Pouzolzia elegans shrub grassland was the dominant community in this area.

以锦屏梯级水电站大河湾段植被为研究对象，以河流流向为基础布置样方，将50个样方物种重要值及其环境因子进行TWINSPAN数量分类和DCA排序，结果显示：（1）由TWINSPAN数量分类将植被划分为7种类型，雅致雾水葛灌草群落为该区域的主要群落。

Most of the nomads live in grassland and= have no fixed home.

游牧部落的= 823；多人都生活在草原上=；并且居无定所。

Most of the nomads live in grassland and have no fixed home.

游牧部落的大多人都生活在草原上并且居无定所。

There are so many rats in grassland, why do not use rat poison to control rats?

草原上的老鼠那么多，为什么不用老鼠药来治理鼠害？

Park, 94,000 hectares within the scope of the meandering river like a snake, there are dotted with lakes, there are endless views of woodlands, the "wind-swept pastures see the cattle and sheep," the vast expanse of grassland.

公园9.4万公顷的范围内有蜿蜒如蛇的河流，有星罗棋布的湖泊，有一望无际的林海，有&风吹草低见牛羊&的广袤草原。

The main researching contents included as following:relationships betweenspecies diversity,community richness,vegetation succession,soil volume weight,solu-ble Na+concentration and five soil chemical elements(N、P、K、Ca、Mg)concentrationwith grazing intensities in the grassland.Relationships between concentrations,re-serve pools of plant nutrient materials,including five macroelements(N、P、K、Ca、Mg),crude protein,crude fibre,crude fat and total nonstructural carbohydrate,and their allocations in defferent plant parts with grazing intensities in thegrassland.Effects of grazing on Leymus chinensis population were also examined andthat more attentions were paid on the responses of many biological characteristics ofabove-and below-ground plant modules to different grazing intensities.Furthermore,in the respects of plant production,survival rate,tillering ability,total nonstructuralcarbohydrates content and others,the effects of one years different defoliationpatterns on the vitality of Leymus chinensis population were detected.

主要研究内容有：放牧对羊草草地植被和土壤的影响，致力于物种多样性、群落丰富度、植被演替和植物生产量、以及土壤容重、土壤水溶性Na+含量和五种土壤大量营养元素(N、P、K、Ca、Mg)的含量等土壤理化性状与放牧强度关系的分析，分析了不同放牧强度与羊草草地草群和羊草种群地上和地下各植物部分中多种营养物质的浓度、贮量及其分配的关系；放牧对羊草种群的影响，注重了羊草种群的地上与地下各植物器官对不同放牧强度的反应和适应性变化，最后，从植物生产量、存活率、分蘖能力以及总非结构性碳水化合物含量等方面，探讨了不同人为去叶方式组合对羊草种群当年和次年生活力的效应。

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。