到目前为止,似乎二氧化碳随着时间变化而增加的幅度相当平稳,但植被的变化却有更大的波动。
So far, the rise in carbon dioxide seems to be fairly smooth over time, but the change in vegetation is jerkier.
植被的变化趋势在一定程度上可以反映这一地区过去的气候变化趋势并对未来的气候变化趋势进行预测。
The change tendency of vegetation may reflect the climatic change and forecast climatic change tendency in the future.
亚洲西南部的气候变化更为微妙,因为它们涉及到山地雪线、降雨模式和植被覆盖率的变化。
The climatic changes in southwestern Asia were more subtle, in that they involved shifts in mountain snow lines, rainfall patterns, and vegetation cover.
随着北美、欧洲和亚洲植被的急剧变化,沙漠遍布世界各地。
Deserts spread throughout the world as vegetation shifted drastically in North America, Europe and Asia.
森林里的日光质量随着植被密度、太阳照射角度和天空云层数量变化而变化。
The daytime quality of light in forests varies with the density of the vegetation, the angle of the Sun, and the amount of cloud in the sky.
在北极发生的其它气候正反馈还包括永久冻土融化和植被变化。
Other positive climate feedbacks that operate in the Arctic include the thawing of permafrost and vegetation changes.
植被和冰层覆盖的长期变化能够说明这种差异。
The discrepancy can be explained by long term changes in vegetation and ice cover.
由于季节气候类型的改变,土著人发现当地的植被类型也在发生着变化,这一现象导致本已困难的谋生之道雪上加霜。
Vegetation patterns were also observed to be shifting due to the changes in seasonal weather patterns, and this leads to increased difficulty in subsistence activities.
植被颜色的变化可能会在数天甚至是数星期内才能显示出来。
It can take days—even weeks—before changes in greenness are apparent.
但是,在某一小段时间历史时期内——即过去的几千年——植被分布的变化比以前要快得多。
But in just a tiny sliver of its history - the last few thousand years - the patterns of vegetation altered much faster than before.
长期以来,研究植物的科学家采用卫星测量植被的新鲜指数,即观测植物反射阳光值,预测植物的状态。 植物新鲜指数的变化是季节性的。
Scientists who study plants and trees from space have long relied on satellite-derived measures of “greenness”—that is, observations of the amount of sunlight reflected by vegetation.
尽管难以在盐碱地里栽种树木,但覆盖地表和湿地的植被异常丰富,随着地下水位和PH值的细微变化而呈现不同的形态。
Though it is di? Cult to grow trees in the saline-alkali soil, the ground cover and wetland vegetation are rich and vary in response to subtle changes in the water table and PH values.
青海今非昔比的植被变化,很大程度上归因于海拔的升高。
Qinghai's changed vegetation can largely be explained by increasing elevation.
“我们的结果说明,近年来的气候变化可能对南极洲的植被产生了深刻的影响”,罗宾逊说。
"Our results point to a profound influence of recent climate change on the Antarctic flora," Robinson said.
罕见的暴雨导致了洪水的到来,但同时也将沙漠染成了绿色,该变化在这幅植被指数图中得到很好体现。
The extreme rain brought floods, but it also turned the desert green, as shown in this vegetation index image.
认为植物生活型功能群不宜作为评估和预测本研究区域植被变化的关键植物功能型。
We concluded that plant life-form function groups were unsuitable as the key plant function types to evaluate and forecast the changes of region vegetation.
无论是眼前的自然景观还是身边触手可及的植被物种,气候变化的影响随处可见:刚走过绿油油的咖啡树林和鳄梨树林,又有一片茂密的热带树种闯入眼帘,有黄色的椰子树和橡胶树等。
Gone was the green palette of the coffee plant and avocado tree. It was usurped by tropical tones of yellow coconut palms and the banana plant.
这种变化是随着微生境,气候,植被等因素的变化而进行有规律的变化。
This change is regular with the change of micro-habitat, climate, vegetation and so on.
土壤含水量随时间的变化,主要受降水量和土壤蒸发与植被蒸腾耗水的影响。
Precipitation, soil evaporation and plant transpiration were the primary factors affecting soil moisture which variation with time.
覆雪表面具有高的反射率;土壤的反射率由高到低变化较大;植被表面和海洋的反射率较低。
Snow covered surfaces have a high albedo; the albedo of soils ranges from high to low; vegetation covered surfaces and oceans have a low albedo.
在植被的恢复过程中,土壤性质也发生了相应的变化。
During the vegetation rehabilitation process, soil properties were changed correspondingly.
游憩影响强度与土壤理化性质及植被变化程度有着极密切的关系。
There is a close relationships among the variation degree of soil and vegetation and the recreational impact strength.
地下水是影响植被变化的主要因素。
Groundwater is an important affecting factor for vegetation variation.
通过摄影与数字图像处理相结合的方法分析了1999年北京山区典型植被覆盖度的季节动态变化规律。
How the typical vegetation coverage changed with time in the mountainous area of Beijing in 1999 is studied after processing the photos taken in field.
植物物候直接反映了气候变化的影响,是植被动态模拟的关键。
Plant phenology can directly reflect the effects of climate change, and is the key for vegetation dynamics modeling.
自然界的植被格局是多样、壮观和永恒变化的。
Vegetation pattern in nature is diverse, spectacular, and ever-changing.
通过孢粉分析方法或对其他植物遗存的研究复原古代植被,进而了解古代气候的变化情况。
Through the Palynological analyse, we can recovers the ancient times vegetation and the ancient times climate change situation.
结果表明:(1 )影响乔木、灌木和草本层植被格局变化的首要因子都是地形特征;
The results are as following: (1)The topographic characteristics are critical for the spatial variations of vegetation.
结果表明:(1 )影响乔木、灌木和草本层植被格局变化的首要因子都是地形特征;
The results are as following: (1)The topographic characteristics are critical for the spatial variations of vegetation.
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