采用灰色系统中灰色关联度的分析方法对羊草草原放牧绵羊日增重的气象限制性因素进行了研究。
The analytic method of gray incidence degree in gray system was employed to study the relationship between daily gain of grazing sheep and restrictive factors.
本公司机械化生产的草原网,广泛应用于草原放牧的隔离,培植草木,自然保护区的隔离以及公路、铁路、城市的护栏。
The Company's Prairie mechanized production network is widely used in the grazing isolation, cultivated vegetation, nature reserves and the isolation of highways, railways, urban barriers.
草场的增加和随之而来的过度放牧导致了稀树草原的扩张。
Increase in pastureland and subsequent overgrazing have resulted in an expansion of savanna.
放牧牲口同样伤害草原。
几十年来,气候变暖使得绿地消失殆尽,过度放牧又加剧了草原的沙漠化。
The grasslands are dying out, as decades of warming temperatures-exacerbated by overgrazing-turn prairie into desert.
后来由于过度放牧、开垦粮田和持续干旱,西北草原进一步遭到破坏,袭击北京的沙尘暴增加到一年十多次。
After that, overgrazing and ever-lasting drought had further devastated northern west prairie.
过度放牧(这同样也被“传统的”耕作所广泛采用)导致了土壤浸蚀,并把肥沃的草原变成了沙漠。
Overgrazing (again, widely practised by "traditional" cultures) causes soil erosion and turns fertile pasture into desert.
与传统的持续性放牧不同,采取积极的规划和管理放牧,恢复草地植被,将使反刍动物不再是草原的负担,而是草原的救星和保护神。
By actively planning and managing the grazing and recovery of the plants as opposed to allowing continuous grazing, ruminants become part of the solution rather than a burden to the land.
豹纹龟(龟)是一种大型的放牧物种,出现在有利半干旱(不干),棘手的草原栖息地。
The Leopard Tortoise Stigmochelys (Geochelone) pardalis is a large grazing species that favors semi-arid (not dry), thorny to grassland habitats.
目的是在青海果洛地区,通过在退化的草原上限制放牧来减少沙漠化。
The goal is to reduce desertification by limiting grazing on the shrinking grasslands in the Golog region of Qinghai.
另外针对欧亚大陆典型草原生态系统中实生苗动态对于刈割或放牧干扰的响应还很少有实验性研究。
Moreover, the responses of seedling dynamics to different disturbances such as mowing and grazing in Eurasian typical steppe ecosystems have been scarcely studied before.
有牧民在草原(放牧)或者农民在农田播种时捡到这些天珠。
Shepherds and farmers pick them up in the grasslands or while cultivating fields.
大平原上的大片草原由于过分放牧而逐渐荒芜。
Vast regions of grasslands on the Great Plains were depleted by overgrazing.
循环放牧甚至可以通过使大草原保持良好状态来预防野火。
Rotational grazing can even help prevent wildfires by keeping grasslands in good condition.
利用植物显微技术镜检法和食道瘘管法对放牧绵羊采食的高山草原植物成分与嗜食性指数进行分析。
Esophagus fistula method and microscopic examination technique were used to analysis the botanical composition, and preference index of forage selected by grazing sheep on alpine pasture.
放牧干扰对草原鸟类群落结构形成的影响;
The influences on grassland bird communities structure caused by grazing disturbance;
干草原草场类,山地革甸草场类、灌丛草甸草场类等,虽已大量放牧和刈割利用,但草场生产潜力尚未充分挖掘。
Onthe other hand, for steppe grassland, mountainous Meadow and herbage Meadow grassland, the potentiality has been coupleted exploited, due to light-grazing and cutting.
在短花针茅荒漠草原对比研究了划区轮牧和自由放牧两种放牧制度对草地土壤理化性状的影响。
The comparative studies on the influence of rotational grazing and continuous grazing on the physical and chemical characters of soil was conducted in desert steppe of Stipa breviflora.
放牧干扰是影响荒漠草原土壤健康的主要因子。
Grazing interrupt is the primary factor in effecting the health of desert-grassland.
当家畜的放牧时间和载畜率类似于草原生态系统进展下的模式时,草地可保持它的生产力和植被组成。
It is concluded that range ecosystems may sustain their productivity and composition when grazing time and stocking rate resemble the grazing pattern representing the ecosystem progressing.
这里大草原的树木稀少因为季节性洪水和干旱,沉重的放牧还有火灾。
Trees are sparse on grasslands due to seasonal floods and droughts heavy grazing and fires.
第十二条合理使用草原,防止过量放牧。
Article 12. Grasslands shall be used rationally and overgrazing prevented.
这首《敕勒歌》是1500年前出自游牧民族之歌,它形象地描绘了辽阔无垠的大草原和他们自由自在的放牧生活。
"Chilege Song" was composed by nomadic tribes about 1,500 years ago, which depicted vividly the boundless pasture land and free herding life.
大针茅草原群落高度、盖度在不同放牧制度下的动态规律总体一致。
The dynamic rule of height and coverage of Stipa grandis community under different grazing strategies was the same.
研究结果进一步说明了草原生态系统对放牧反应的复杂性。
The results further show steppe ecosystem complexity under grazing systems.
研究结果进一步说明了草原生态系统对放牧反应的复杂性。
The results further show steppe ecosystem complexity under grazing systems.
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