土地资源利用系统是一个复杂而巨大的社会、经济和生态系统，传统的定性与定量方法难以有效地解决土地资源利用系统的问题。
The land resources utilizing system is such a big and complicated system concerning with society, economy and ecology that we can not efficiently resolve this problem by traditional methods.
水资源和土地资源的不合理开发利用是造成西部严重生态环境问题的根源。
The unreasonable exploitation and utilization of water and soil resources is the radical reason of causing serious ecological environment problems in the west part of China.
近年来，关于矿山采坑废弃土地的生态环境受到了广泛的关注，而其中土壤动物的种类和数量问题却没有得到应有的重视。
In recent years, the ecological environment of the abandoned pit land in mines has aroused wide attention while the quantity and varieties of the soil animals (haven't) received due attention.
土地沙漠化作为土地的一种退化形式，已成为中国北方地区一个重大的生态环境和社会经济问题。
Soil becomes desert as a sort of retrogresss form of soil has become a great problem of entironment and society economy in north area.
土地荒漠化是西北内陆河流域主要生态环境问题。
Land desertification is the main ecological problem of northwest inland basin.
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。
We analyzed the main eco-environmental problems in this area, which are desertification, soil salinization, and vegetation degeneration.
土壤侵蚀是土地退化的主要原因，也是导致生态环境恶化的最严重的问题，联合国粮农组织将其列为全球土地退化的首要问题。
Soil erosion is the main cause for the global land degradation and also is the key problem resulting in the ecological environment deterioration, so N. n.
将土地自然价值分成固定自然价值和可变自然价值，讨论了土地生态环境的价值、价格及区位问题，且将土地生态环境分为四种类型。
In this paper land natural value is separated into fixed and variable parts. Value, price, and location of land environment are discussed. Land environment is divided up four dasses.
土地沙化已经成为我国最严重的生态环境问题之一，而不断加剧的沙尘暴又使生态环境问题雪上加霜。
The desertification of land has already become one of our country's most serious ecological environment problems, and sandstorm aggravating constantly makes ecological environment more serious.
他指出，目前百分之卅的土地遭到几百种重金属污染，黄河断流、长江水系崩溃、北方沙漠化，生态难民会是未来三年最严重的问题。
He pointed out that eco-disasters, like soil contamination and land desertification would be some of China's biggest problems in the next 3 years.
土地沙化是我国特别是西北地区当前最为严重的生态环境问题，不断加剧的沙尘暴与沙化土地的扩张更使生态环境问题雪上加霜。
Land desertification is the most serious eco-environmental problem in China, especially in the northwest region, which enlarges the area of desertified lands and intensifies sandstorms.
在沉陷区开展土地整治，是解决该区域存在的社会问题和生态环境问题的迫切需要。
It is badly need to solve the social problems and ecological environment problems through land regulation.
本区存在的主要环境问题主要为水土流失，土地沙化和植被退化，在生态环境敏感性评价上属较敏感区域。
The major environmental problems of the region are soil erosion, desertification and the degradation of vegetation, which make the region a sensitive area on the evaluation of ecological environment.
本区存在的主要环境问题主要为水土流失，土地沙化和植被退化，在生态环境敏感性评价上属较敏感区域。
The major environmental problems of the region are soil erosion, desertification and the degradation of vegetation, which make the region a sensitive area on the evaluation of ecological environment.
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