The land desertification assessment is an important theory in the research of desertification.

土地荒漠化评价是荒漠化研究中的重要问题。

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The land desertification in Aibinur lake region was monitored and analyzed based on the RS and GIS with the satellite data.

利用RS及GIS手段对新疆艾比湖地区不同时期的卫星数据进行分析处理，提取各类土地荒漠化类型的时空分布特征信息。

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China is one of the most serious countries suffering from land desertification disaster in the world. The land desertification areas appear increasing trend.

中国是受土地沙漠化严重危害的国家之一，目前我国土地沙漠化仍然呈增加趋势。

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For example,it says climate change and land use are expected to increase desertification worldwide, increasing the risk of sand and dust storms.

VOA: standard.2009.03.23

Due to the consequences of the environmental crisis in Aral Sea region such as poor soil conditions, intensive desertification and land degradation, the farmers and dehkhans often face a plenty of problems.

UNESCO: OFFICE IN TASHKENT

Canada's withdrawal comes ahead of a major convention in Bonn, Germany, "to carry out the first ever comprehensive cost-benefit analysis of desertification, land degradation and drought", the UN Environment Programme said.

BBC: Canada 'only nation to leave UN drought agreement'

At the meeting, member countries will also for the first time be required to submit data on poverty and land cover in areas impacted by desertification.

BBC: Canada 'only nation to leave UN drought agreement'