植被退化 meaning in English
vegetation degradation
Examples
- We analyzed the main eco - environmental problems in this area , which are desertification , soil salinization , and vegetation degeneration
分析了塔里木盆地生态环境的主要问题为沙漠化、土地盐渍化和植被退化。 - The ecological system deteriorated by the people has threatened the survival environment in karst areas of guizhou province
贵州喀斯特区由于人为干扰植被退化严重，生态系统遭到严重破坏，对人类生存环境造成严重威胁。 - A lot of areas have already become the fragile district of the ecology . the mesoscale ( mm5v3 - 5 ) model was used to simulate the change of temperature , heat flux by means of changing landuse according to the survey data about the land degradation and renewing in the west of liaoning , which used data in june , july and august , 2001
本文利用中尺度模式( mm5v3 - 5 ) ，选择2001年6 、 7 、 8月份的资料，根据辽西地区土地退化的有关调查材料，对模式中的下垫面状况( landuse )进行改变，模拟植被退化和恢复后，辽西地区的温度、热通量变化。 - With the development of agriculture and industry and the enlargement of man ' s activity , the demand of water supply has increased in the region over the past decades . in the backward areas along the heihe river , there are a lot of ecological environmental problems such as lake dried up , sustainable , lowering of ground water level , water pollution , soil salinization and desertification , degradation of natural oasis and grassland , as well as sand storm
近几十年来，由于工农业的发展和人类活动的扩大，黑河流域中下游用水量的增加，黑河下游出现了严重的缺水现象，由此导致了一系列诸如河流湖泊干枯、地下水水位持续下降、水质恶化、植被退化、土壤盐碱化、土地风蚀化等环境问题。包气带水分、盐份的分布和运移对地表植被生长有着重要的影响。 - The others showed partly decreased , but the degradation of vegetation were obviously in lower reaches of tarim and cherchen river ; in the mountain area of southern xingjian , the forest area were increased , and the others decreased ; in northern xingjian , both the mountain and the plain area increased . they showed the decrease of desert and the increase of oasis ; the change of vegetation cover in the hexi corridor - alax desert were not obviously ; but in chai - damu basin , the area of desert and low cover grassland increased , the others vegetation decreased , especially in the high cover grassland . that showed the great degradation of ecosystem , and the most of degradation was shown in the north hillside of the arjin mountain and qi - lian mountain
而从各个分区来看，情况不尽相同:南疆地区平原区绿洲面积扩大，荒漠面积基本不变，其他类植被面积不同程度缩小，而在塔里木河下游、车尔臣河下游植被退化;南疆山地森林面积略有增加，其他类植被面积略有缩小;北疆的平原区和山区的植被状况均有改善，表现为荒漠面积缩小，绿洲面积增加;河西走廊一阿拉善地区总体变化不大;但是柴达木盆地的荒漠面积、低覆盖度草地增加，其他类植被，尤其是甚高覆盖度植被(草甸)的面积缩小，表明该地区的生态环境退化，而退化表现的主要地区在环柴达木盆地的阿尔金山和祁连山的北坡。