森林植被

Tropical forest is wetter and usually supports only knee-high fires that spread slowly through the understorey.

热带森林更加潮湿并且通常只能维持在下层植被中蔓延的膝盖高的火情。

The dwellers in temperate zones can have no idea of the luxuriance of tropical vegetation.

温带的居民无法设想苍郁茂密的热带植被。温带森林生态系统在所有生态系统中占有优势地位。

Forest harvest model ; ecological gap model ; ecological compartment model ; process model ; vegetation distribution model ; mixed model

森林收获模型；生态林窗模型；生态分室模型；过程模型；植被分布模型；混合模型

Results show that after CO2 increases double, the area of forest and rare tree steppe of grassland area in the North of China will increase, the area of the rest will decrease, and the distribution pale of most grassland vegetation have the trendency of moving westwardly and northwardly;moveover besides the area with very drought climate, the grassland production of most areas will increase at different extent, thereinto, the area of Qing—Zang have over 20% increase, the north area of Xinjiang have 10%—15% increase, the grassland production in NeiMongol have less than 5% increase.

结果表明，CO_2倍增后，中国北方草原区森林和稀树草原的面积增加，其余各类草地面积都有所减少，且大多数草地植被的分布界线都有西推北移的趋势；而除气候极干旱地区外，绝大部分地区草地生产力都有不同幅度的增加，其中青藏区增加幅度超过20%，新疆北部增加幅度在10%～15%之间，内蒙古自治区草地的生产力增加幅度不到5%。

Some of the regional changes analyzed are Baltimore-Washington urbanization, Great Lakes landscape change, Upper Mississippi River vegetation, Greater Yellowstone biodiversity, Southwestern US paleoecology, Palouse bioregion land use history, Northeastern forest dynamics, and land use history of the Colorado Plateau.

分析了一些区域变化，如：Baltimore-华盛顿城市化、大湖区景观变化、密西西比河上游植被、大黄石地区的生物多样性、美国西南地区古生态学、Palouse生物区土地利用历史、东北地区森林动力学、以及科罗拉多高原的土地利用历史。

With a view to meeting its commitments for the second commitment period under this Article, each Party account for any of the following human-induced activities: forest management, cropland management, grazing land management, revegetation .

为在本条下实现第二个承诺期的承诺，每一缔约方核算以下任何由人引起的活动：森林管理、耕地管理、牧场管理、植被重建。

And forest soils are saltier and more acidic, compared with other types of plant cover such as crops or grasslands, the researchers found.

并且研究人员发现：森林土壤的盐分和酸性比农田或草原等其它类型植被更高。

The conversion of agricultural land and pasture to forest and many conservative agricultural practices can sequester atmospheric carbon in vegetation and soil.

农田和草地弃耕恢复为森林，以及农田保护性管理措施的利用。能够使大气中的碳在植被和土壤中得到汇集。

This is serious because such sessile creatures are not merely part of the ecosystem. In a sense, they are the ecosystem—in the way that it is plants rather than animals that define a forest.

这种损害是十分严重的，因为这些固定生长的生物不仅仅是生态系统的一个环节，某种意义上，它们本身就是生态系统——森林生态系统是根据其中的植被而不是动物来定义的。

They looked at birds in different areas of vegetation, including intact forest, plantations and shrub land.

他们研究了在不同植被地区的鸟类，其中包括原始森林，种植园和灌木林地。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失