对黄淮海平原农区宽带距多行带梨麦间作系统水分效应、产量效应与土地利用效应进行了研究。

The effects of Pear-Wheat inter-cropping with big spacing and several rows on water, yields and land utilization in the Huang-Huai-Hai Plain, were studied in this paper.

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但是研究都涌向研究未来气候效应建模的不确定方向上，却忽视了土地利用和卫生保健的研究。

Yet studies run into the unreliability of modelling future climatic effects and sometimes ignore changes in land use and health care.

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然后介绍了在完全竞争和无外部效应条件下城市土地利用的区位模型，这是最基本的理论模型；

Then I talk about the location model of the urban land utilization in condition of the complete competitive and non-eternal effect, which is the basic theory model.

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