砍伐

It is widely ac清楚ledged those extensive deforestation contributed to heavy summer flooding .

大部分人普遍以为过度砍伐造成了夏季特大洪水。

It is widely ac清楚ledged these extensive detoestation contributed to heavy summer flooding .

大部份人普遍以为过度砍伐造成了夏季特大洪水。

The maned three-toed sloth lives in the forests of Brazil, where it is threatened by logging.

有鬃毛的三趾数来生活在巴西的森林里，受到砍伐森林的威胁。

And the scientific research showed that they are medicable to insomnia, anxiety and other diseases that found in modern people. 4 The regression models of biomass were used to calculate the total cumulative biomass. Average biomass of six samples was 62.88 t·hm-2 after cutting 3 years, which was higher than that of tropical secondary forests with 5 years succession. It can be concluded that traditional fuel woods had played an important role in conservation of tropical forest in the area. Caloric values were not different in major fuel species (Coefficient of variation was only 1.1%). The similar result was found in stems of C. siamea after growing different years. The main reason of C. siamea cultivation was that it had the character of hardwood, easy collecting, little ash, and so on.

铁刀木的各个部位都作药用，资源量大的树叶和心材使用最多，并且现有的研究成果表明它们具有多种活性成分，针对现代人常患的失眠、焦虑等疾病具有较好疗效。4）通过收获法拟合的生物量回归模型对推测西双版纳地区铁刀木林薪柴蓄积量有较高的参考价值，砍伐3年后的六个样方中铁刀木的平均生物量为62.878 t.hm-2，高于5年林龄的热带次生林（16.35t·hm-2），对西双版纳热带雨林的保护有着重要意义。5）几个村寨最主要的薪材树种热值研究结果变异系数仅为1.1％，各薪材树种之间热值相差不大，铁刀木被选择为传统薪炭林更多是因为材质坚硬、收获运输方便、燃烧完全等特点。

A PINE tree in a Finnish forest takes 50 years before it can be pulped and milled into paper.

一棵生长在芬兰森林中的松树需要生长50年后才能被砍伐并碾碎了用来造纸。

That is, a wide range of deforestation, desertification of grassland and other factors, which observably impact climate.

大范围的森林砍伐、草原荒漠化等对气候变暖的影响非常显著。

Other patterns of land degradation deforestation, overgrazing, overcultivation, desertification, and salinization

其他形式的土地退化，森林砍伐，过度放牧，荒漠化，和盐碱化减少了净吸收二氧化碳，间接导致了全球气候变暖。

In scores of countries, t he over grazing, overplowing, and overcutting t hat are driving the

在许多国家，受过度放牧、过度耕耘和过度砍伐驱动的荒漠化进程，由于人口和牲畜数量的不

Restoring natural areas to presettlement conditions should not be done if it means utting down mature trees.

如果恢复自然区域会砍伐熟龄树木就不可行

The fire caused the incidence of Quercus mongolica forest.

蒙古栎林的起源原因有2种，即火与人类的反复砍伐。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。