由于农业人口与农业用地面积不成正比，人口不断增加，粮食需求量不断增加，导致土地资源不足以满足人口需求的现象称为人地矛盾。
... cahn-hilliard equation cahnhilliard方程 contradictory between people and land 人地矛盾 resources-typed cities 资源型城市 ...
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因而，需要研究解决人地矛盾的途径。
Thus, the approaches should be found out to solve the contradiction between land and population.
最后，提出了缓解人地矛盾的对策性建议。
Finally, this paper advances several Suggestions for retarding the supply and requirement contradiction of population and land resources.
就宁夏地区日益显现的人地矛盾进行了探讨；
The article issue about conflict of man-earth of Ningxia region in recent years.
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