| 1. | A gis based study on the potential land productivity of china 的中国土地生产潜力研究 |
| 2. | The time problem of fisheries land productivity 渔业土地生产率的时间问题 |
| 3. | Situation and prospects of researches on land quality , land productivity and food security 生产能力与粮食安全相关研究的现状及展望 |
| 4. | On the other hand , it may improve the land productivity 通过土地整理,一方面可以增加有效耕地面积,另一方面可以提高土地持续生产能力。 |
| 5. | The cropping pattern should be adjusted , so as to give a higher yield and maintain land productivity 进行合理轮作,不但能获得高产,而且可保持土壤生产力。 |
| 6. | Peasants ' income state depends on agricultural labor productivity and land productivity to a great extent 农民的收入状况在很大程度上取决于农业劳动生产率和土地生产率。 |
| 7. | But factors such as low population intensity and low land productivity restrict the efficient demand for road transport 但样本县因人口密度过小、耕地生产率低下等因素限制了对公路运输的有效需求。 |
| 8. | The results prove land degradation through influence land productivity and per capita agriculture total value to influence peasants per capita income 发现土地退化是通过影响土地生产力进而影响人均第一产业总值来影响农民人均收入。 |
| 9. | On the basis of investigated data of wangmaogou watershed check dams system , the benefits of flood trapping and sediment blocking , increasing land productivity , eco - environment , society are analyzed 根据王茂沟流域淤地坝坝系的调查资料,分析了王茂沟流域坝系的蓄洪拦泥、增产、生态、社会效益。 |
| 10. | The question that soil erosion causes loss of soil nutrient and leads to degradation of land productivity has received many attentions . but the research on soil potassium loss by erosion is under study 土壤侵蚀引起土壤养分径流流失,导致土壤生产力降低这一问题已引起人们普遍关注,但有关土壤钾素径流流失研究方面的报道不多。 |