1. 撒哈拉沙漠 英文简介
The Sahara Desert, formed about 2.5 million years ago, is the second largest desert in the world after Antarctica and the largest sandy desert in the world.
It covers an area of 9.06 million square kilometers and is located in northern Africa.
The climate in this area is very harsh, and it is one of the most unsuitable places on earth for living things.
"Sahara" is an Arabic transliteration. In Arabic, "Sahara" is a great desert. It originates from the Tuareg language of the local nomadic people, which means "great desert".
撒哈拉沙漠形成于约250万年前,是世界仅次于南极洲的第2大荒漠和世界最大的沙质荒漠。
面积约906万平方千米,位于非洲北部。
该地区气候条件非常恶劣,是地球上最不适合生物生存的地方之一。
“撒哈拉”是阿拉伯语的音译,在阿拉伯语中“撒哈拉”为大沙漠,源自当地游牧民族图阿雷格人的语言,原意即为“大荒漠”。
扩展资料:
撒哈拉沙漠形成原因:
1、北非位于北回归线两侧,常年受副热带高气压带控制,盛行干热的下沉气流,且非洲大陆南窄北宽,受副热带高压带控制的范围大,干热面积广。
2、北非与亚洲大陆紧邻,东北信风从东部陆地吹来,不易形成降水,使北非更加干燥。
3、北非海岸线平直,东侧有埃塞俄比亚高原,对湿润气流起阻挡作用,使广大内陆地区受不到海洋的影响。
4、北非西岸有加那利寒流经过,对西部沿海地区起到降温减湿作用,使沙漠逼近西海岸。
5、北非地形单一,地势平坦,起伏不大,气候单一,形成大面积的沙漠地区。
参考资料来源:百度百科-撒哈拉沙漠
2. 什么是沙漠化,还有用英语怎么写.
desertificationn.(土壤)荒漠化,沙漠化
在干旱和亚干旱地区(也包括一部分亚湿润地区),在干旱多风和具有疏松沙质地表的情况下,由于人类不合理的经济活动,使原非砂质荒漠的地区,出现了以风沙活动、沙丘起伏为主要标志的类似沙漠景观的环境退化过程。地球上受到沙漠化影响的土地面积有3800多万平方公里,目前,全世界每年约有600万公顷土地发生沙漠化。沙漠化问题涉及的范围之广,已引起全世界关注。产生沙漠化的自然因素主要是干旱、地表为松散砂质沉积物和大风的吹扬等;人为因素主要是过度放牧、过度垦殖、过度樵柴和不合理地利用水资源等。沙漠化是环境退化的现象,是一种逐步导致生物性生产力下降的过程,包括发生、发展和形成三个阶段。发生阶段(初期阶段)是潜在性沙漠化,仅存在发生沙漠化的基本条件,如气候干燥、地表植被开始被破坏,并形成小面积松散的流沙等;发展阶段,地面植被开始被破坏,出现风蚀,地表粗化、斑点状流沙和低矮灌丛沙堆,随着风沙活动的加剧,进一步出现流动沙丘或吹扬的灌丛沙堆;形成阶段地表广泛分布着密集的流动沙丘或吹扬的灌丛沙堆,其面积占土地面积50%以上。沙漠化的危害是破坏土地资源,使可供农牧的土地面积减少,土地滋生能力退化,植物量减少,土地载畜力下降,作物的单位面积产量降低。沙漠化已给许多国家和地区的农业、牧业和人民生活财产造成严重损失。
3. 沙漠英语怎么说
desert[di5zE:t]n。
沙漠, 应得的赏罚, 功过adj。沙漠的, 不毛的, 荒凉的vt。
放弃, 遗弃, 逃跑vi。 逃掉, 逃亡, 开小差desertdesert 1AHD:[dµz“…rt] D。
J。[6dez*t]K。
K。 [6dWz*t]n。
(名词)A barren or desolate area, especially:荒地:贫瘠的或荒芜的区域,尤其指:A dry, often sandy region of little rainfall, extreme temperatures, and sparse vegetation。 沙漠:下雨很少,温度极高,植被贫乏的干燥,通常多沙的地区A region of permanent cold that is largely or entirely devoid of life。
冰原:长久寒冷,几乎没有生命的区域An apparently lifeless area of water。 死水:明显无生命的水域An empty or forsaken place; a wasteland:荒地,荒原:空旷,荒芜的地方;荒地:a cultural desert。
文化荒原Archaic A wild, uncultivated, and uninhabited region。【古语】 不毛之地:荒凉的,未经开垦的,无人居住的区域adj。
(形容词)Of, relating to, characteristic of, or inhabiting a desert:荒凉的,荒芜的:沙漠的,与沙漠有关的,多沙漠的,居住在沙漠的:desert fauna。 生长在荒原上的动物群Barren and uninhabited; desolate:荒凉的,不毛的:贫瘠而无人居住的;荒芜的,废弃的:a desert island。
荒凉的岛caravan[5kArEvAn]n。(商队, 游客经过沙漠时为安全起见而结队同行的)沙漠, 旅行队, 大篷车caravancar。
a。vanAHD:[k²r“…-v²n”] D。
J。[6k#r*7v#n]K。
K。[6k#r*7v#n]n。
(名词)A company of travelers journeying together, as across a desert or through hostile territory。 旅行队:结伴一块旅行的一群游客,如在穿过沙漠或通过危险地带时结成的旅行队A single file of vehicles or pack animals。
车队,牲口队:排成单行的车辆或牲口群A large covered vehicle; a van。 有篷卡车:大型的有盖的车;有盖的货车Chiefly British A trailer or dwelling place on wheels。
【多用于英国】 活动住房:用汽车拖拽的住所。
4. 撒哈拉大沙漠英文简介
撒哈拉沙漠介绍英文版: The Sahara Desert, covering most of North Africa, is the largest desert in the world. From north to south the Sahara is between 800 and 1,200 miles and is at least 3,000 miles (4,800 km) from east to west. Due to the massive size of the Sahara, Africa is split into two regions: that which lies above or forms part of the Sahara and the rest of Africa south of the Sahara. On the west, the Sahara is bordered by the Atlantic Ocean and on the east by the Red Sea, and to the north are the Atlas Mountains and Mediterranean Sea.Over 25 percent of the Sahara's surface is covered by sand sheets and dunes. 撒哈拉沙漠是世界上最大的沙漠, 25%的沙漠被沙土和沙丘覆盖。
Climate 气候 The Sahara's climate consists of basically two sub-climates, a dry subtropical climate in the north and a dry tropical climate in the south. The dry tropical climate is generally characterized by mild, dry winters, a hot dry season just before the rainy season, and an annual temperature cycle. The dry subtropical climate, however, is characterized by annually high temperature ranges, cold winters, hot summers and two rainy seasons. There is a narrow strip in the western portion of the Sahara, along the coast, which generally has cool temperatures compared to the rest of the Sahara because of the influence of the cold Canary Current. 撒哈拉沙漠包含了2种气候, 一种是北部的干旱亚热带气候,令一种是南部的干旱热带气候。 Plant Life 植物生活 The Sahara is sparsely covered with various types of vegetation ranging from grasses, shrubs, and trees in the highlands to halphytes, which are saline-tolerant plants found in saline depressions. One characteristic of the vegetation found in the Sahara is that these species must be able to adapt to unreliable precipitation and excessive heat. 草丛,灌木和树木都可以生长,这些树木的特点是能承受巨热和盐碱地带。
Animal Life 动物生活 Some of the mammal species found within the Sahara are the gerbil, jerboa, Cape hare, the desert hedgehog, dorcas gazelle, dama deer, Nubian wild , anubis baboon, spotted hyena, common jackal, sand fox, Libyan striped weasel, and the slender mongoose. The Sahara also contains over 300 species of migratory bird populations along with water and shore birds and various other types of birds. Some of the most common birds are ostriches, raptors, secretary birds, guinea fowl, Nubian bustards, desert eagle and barn owls, sand larks, pale crag martins, and brown-necked and fan-tailed ravens. 哺乳动物,鸟类都可以找到。 The People 人类 The Sahara Desert covers over 3.5 million square miles and has only 2.5 million inhabitants - roughly 1 person per square mile (0.4 sq km)- which is one of the lowest population densities on earth. Wherever abundant food and water sources occur, one will find relatively large masses of people and wildlife. On the whole, the Sahara is one of the harshest environments known to man. 居住人口极少,大约每人占地0.4平方公里,是世界上最少的人口密度。
Many researchers have gone into the Sahara looking for clues as to how long ago humans began inhabiting the desert. According to archeologists, the Sahara was much more densely populated thousands of years ago when the desert's climate was not as harsh as it is today. Fossils, rock art, stone artifacts, bone harpoons, shells and many other items have been found in areas which today are considered too hot and dry to inhabit. This suggests that these areas were quite habitable thousands of years ago, but that the climate of the Sahara has since changed drastically. The artifacts found were located near remains of giraffe, elephant, buffalo, antelopes, rhinoceros, and warthog, as well as the remains of fish, crocodiles, hippopotamuses and other aquatic animals which suggests that thousands of years ago water was quite abundant in the Sahara. 很多研究者经常深入撒哈拉去寻找人类是多久以前就在沙漠中生活了。 据历史学家调查,在千方年前的撒哈拉,人口密度比现在要高,是因为那时的沙漠的条件没有现在那么险恶。
The majority of the people living in the Sahara Desert are nomads, which means that these people continuously move from region to region in search of better living conditions. It is believed that the first nomadic peoples came to this region after domestic animals were introduced to the Sahara 7,000 years ago. Researchers believe that sheep and goats were introduced to the Sahara region by the Caspain culture of northern Africa. 居住在沙漠里的大部分是游牧民,也就说他们不停的迁移,为了找到更适合生存的环境。 Evidence suggests that the Sahara accumulated diverse grou。