过度放牧是造成中国草地生态系统破坏的重要原因。
Overgrazing was found to be another important contributing factor in grassland degradation in China.
草地生态系统是陆地生态系统的一个重要组成部分。
Grassland ecosystem is an important component of the terrestrial ecosystem.
玛曲县是黄河上游地区的主要水源涵养地，草地生态系统服务价值巨大。
Maqu County is the the main water conservation region in the Upper Yellow River and with great value of grassland ecosystem services.
放牧、施肥作为草地经营管理的重要措施，会对草地生态系统产生深远的影响。
As important patterns for grassland management, grazing and fertilizing will have far-reaching effects on grassland ecosystem.
应用恢复生态学原理，提出了三江源区退化高寒草地生态系统恢复与重建模式。
Then, using the principles of the restoration of ecology, proposed the alpine meadow degradation ecosystem restoration and reconstruction pattern in the source region of three rivers.
概述了草地生态系统碳素循环的一般特征，介绍了一个草地碳循环的分室模型；
Some major characteristics of the carbon cycle in grassland ecosystems were summarized, and a carbon cycle compartment model was introduced as well;
放牧和刈割是牧区草地的两种主要利用方式，也是影响草地生态系统的主要因子。
In this paper, the effects of grazing and mowing on meadow vegetation succession in Kerqin Steppe were studied.
温带草地大部分生物量分布在地下，地下生物量在草地生态系统碳循环中起着重要作用。
Grasslands play a significant role in terrestrial ecosystem carbon cycle due to large biomass stored belowground.
草地植被是草地生态系统中的第一性生产者，对区域甚至全球气候和环境变化具有很大的影响。
Grassland vegetation, which is the primary producer in grassland ecosystem, has very serious effect on regional climate and even global climate and environment change.
草地生态系统是最大的陆地生态系统，包括草地植物生态系统、动物生态系统和人类社会系统等子系统。
The grassland agricultural ecosystem, including the primary production system, the second production system, social system and so on, is the biggest among the terrestrial ecosystems.
储存在草地生态系统的碳对当地乃至全球的碳循环都至关重要，它甚至有可能改变全球碳循环，进而影响气候。
The carbon stored in the grassland ecosystem is important to regional and global carbon cycles; it has the potential to modify global carbon cycles and influence climate.
豆科牧草的生长及分布状况直接影响草地动物的生长，受损草地的恢复，健康草地生态系统的评价和管理等因素。
The growth and distribution of legume grass directly affect the development of grassland animal, recovery of damaged grassland and evaluation and management of healthy grassland ecosystem.
论述了草地生态系统服务价值评估具有下列重要意义：1。 指明了草地生态系统服务的具体项目及其不可代替性；
Significance of evaluating service value of grassland ecosystem has been illustrated in following aspects: 1. Specific services of grassland ecosystem and its exclusive value were stated;
对世界和中国草地生态系统在陆地生态系统碳储存、碳循环及在全球气候变化中的地位和作用进行了分析，阐明了中国草地生态系统碳储量及其分布格局。
The carbon stock, carbon circulation in grassland ecosystem and its role in global climate change were discussed. The distributing pattern of carbon stock in Chinese grassland ecosystem was analyzed.
"热带稀树草原位于热带地区，海拔较低，是一种稳定的生态系统，由广阔的草地和稀疏分布其中的树木或灌木组成，有些地区湿润，有些地区干燥。
Located in tropical areas at low altitudes, savannas are stable ecosystems, some wet and some dry consisting of vast grasslands with scattered trees or shrubs.
国家森林局的相关人员说这场大火燃烧的主要是草地和灌木林地，生态系统并不会因为这种大火而受影响。
The fires are burning mostly grass and shrub land, ecosystems that are adapted to fire, says the Comisión Nacional Forestal (CONAFOR, Mexico’s National Forest Service).
报告敦促人们更加关注受损生态系统的恢复，特别是对于应对气候变化至关重要的物种，比如红树林、内陆水域、森林、非洲大草原和牧场草地。
The report urges more focus on restoration of damaged ecosystems, especially those key to tackling climate change such as mangroves, inland waters, forests, savannahs and grasslands.
基于季节畜牧业和草地农业生态系统的思想，提出了关键场的新概念；
Based on the concept of seasonal grazing production systems and agro-grassland ecological systems, the new idea of key pasture has been formed.
本研究分析了子午岭林区农田、草地、灌丛和森林不同生态系统土壤总有机碳、活性有机碳和稳定性有机碳含量。
The study examined the total contents of soil organic carbon and the content of soil active organic carbon and stable organic carbon in farmland, grassland, scrub and forest ecosystems.
草地净第一性生产力(NPP)是全球变化与陆地生态系统研究的核心内容之一。
The grassland net primary production (NPP) is an important research issue in the global climate change and terrestrial ecosystem.
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.
对于森林、草地、江河等自然生态系统，植被选择应以原生种类为主，以促进生态系统进行原生演替；
For forest, grassland and river ecosystems, phreatophyte should be applied to, promoting the primary succession of the ecosystem.
为了保护生态系统，该国决定将11%的农耕地变为草地或森林。
In order to protect the ecosystem, the country determined to convert 11 percent of its cropped land to meadow or forest.
草地放牧系统作为生态系统重要组成部分，对其研究自然也离不开模型的应用。
Model are also used in grassland grazing systems, which are an important part of ecosystems.
结构和规模是影响草地放牧生态系统功能实现的重要因素。
The structure and the size of the herd are important for the function of the grazing ecology systems.
陆地生态系统包括农田、森林和草地，水域生态系统包括近海、河流和湖泊。
Terrestrial ecosystem includes farmland, forest and rangeland, and aquatic ecosystem includes inshore, rivers and lakes.
分析了草地类型生态系统退化的现状、原因及其恢复途径，提出人工草地的建立是恢复退化天然草地的有效途径；
This paper analyzed the degradation actuality of natural grassland, its reasons and corresponding restoration ways. Natural restoration is the easiest way, but it is very slow.
草地是陆地生态系统大的碳库，在减少和固持CO 2方面将发挥主要作用。
Grasslands are the biggest carbon bank, and play a chief part in reducing and fixing CO2.
草地是陆地生态系统大的碳库，在减少和固持CO 2方面将发挥主要作用。
Grasslands are the biggest carbon bank, and play a chief part in reducing and fixing CO2.
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