砍伐

However, a series of ecologically maladjusted problems emerged because of the massive lop and reasonless utilization of vegetation in recent decades.

但几十年来，该地区植被的大量砍伐和土地的不合理利用引起了一系列生态恶化问题。

Food is god for the people, utilize solar energy to cook and cut down the forest reducibly , is favorable to water and soil conservation, reduce the air pollution caused by the fact that the timber is burnt at the same time , according to the incomplete statistics, Nigerian timber used to cooking is more than 100 million every year.

民以食为天，利用太阳能做饭可减少砍伐林木，有利于水土保持，同时减少因木材燃烧造成的空气污染，据不完全统计，尼每年用于做饭的木材为1亿立方以上。

Elk survive gunshot wounds, seals heal after shark bites, oak trees resprout after decapitation.

麋鹿中枪之后仍能存活，海豹被鲨鱼咬过也能痊愈，橡树被砍伐之后还会抽条。

Elk survive gunshot wounds, seals heal after shark bites, oak trees resprout after decapitation.

麋鹿中枪之后仍能存活，海豹被鲨鱼咬过也能痊愈，橡树被砍伐之后还会抽芽。

Logging, land conversion to agriculture and settlements, wildfi res, cutting for fi rewood and charcoal, and civil unrest are the primary causes of deforestation in Africa; many of these pressures are driven by population growth.

伐林、土地使用改变成农田或住宅、森林野火、为了薪材及木炭所进行的伐木、社会动荡不安等都是非洲砍伐森林的主要因素，多数都是来自人口成长的压力。

The Three Gorges Region ; Degraded ecosystems ; Shrubland ; Biomass ; Cutting

三峡地区；退化生态系统；灌丛；生物量；砍伐

The analyses of social and economic development indicate that, up to 1998, the total population in Yijinholo County is 143, 949 persons, the population density is 24 persons per square kilometer, large population number results in land exploitation for food and overgrazing in rangeland. The change in temporal and spatial pattern of landuse from 1977 to 1998 demonstrates that mobile sand dunes was replaced by rangeland and woodland and partial shrubland in the middle of study area changed into rangeland and farmland from 1977 to 1987, while mobile sand dunes and rangeland transformed into shrubland and farmland in a small parts from 1987 to 1998, the above-mentioned change is proved by the change of fractal dimension index and fragmentation index at landscape and its element levels.

对近50年来伊旗社会经济发展的分析结果表明，虽然人口增长率基本上呈下降趋势，但由于人口基数较大，截至1998年底，伊金霍洛旗的人口总数达143949人，人口密度为24人／平方公里，较高的人口密度带来了更多的生存需求，使得大量的草牧场被开垦，而剩余的则严重超载。1977-1998年间伊土地利用结构总体格局变化的分析结果表明，1977-1987时段内主要是流动沙地为草牧场和乔木林地所取代，伴随着中部的部分灌木林地转换为草牧场和农地：而1987-1998时段内主要是草牧场和流沙地为灌木林地和农地特别是灌木林地所取代，而景观及各景观要素的分维度指数和破碎度指数的变化也充分证实了这一结论，虽然在前10年（1977-1987年）中大面积的灌木林被砍伐，但土地利用格局的整体变化间接地反映出该时段内荒漠化的状况正在发生逆转。

However, a tree that you know is not a tree for food, you shall destroy and cut down, so that you may build a siegework against the city, which engages you in battle, until it falls.

20：20 惟独你所知道不是结果子的树木，你可以毁坏、砍伐，用以建造围城的设备，攻击那与你打仗的城，直到攻陷了。

First , erosion resulting from excessive deforestation in the upper reaches of the river and , second ,heavy silting which ra

第一，过度砍伐引起的河流上游的侵蚀，第二，严重的泥沙淤积抬高了主干道的河床。

From excessive deforestation in the upper reaches of the river and , second ,heavy silting which raised the riverbed in the main channel .

第一，过度砍伐引起的河流上游的侵蚀，第二，严重的泥沙淤积抬高了主干道的河床。

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。