| 1. | A preliminary study on ecological farming in pingdingshan plain regions 平顶山市平原区生态农业雏议 |
| 2. | The plains region is a projection of the great plain of europe 法国的平原在欧洲广袤的平原上是一个凸起,它突出的特点就是河流广布。 |
| 3. | The experiment was conducted in the plain region which regarded as the main base for rice production 本试验在平原地区进行,该地区被视为主要水稻生产基地。 |
| 4. | According to the conditions of zhuolu county , it was divided three index - control regions : plain region , hilly - land region and mountainous region 针对涿鹿县的实际情况,将其指标控制区分为河川区、丘陵区和山地区。 |
| 5. | The american state of kansas , located near the center of north america in the great plains region , is normally a quiet , provincial place 美国堪萨斯州的地理位置,靠近北美中心腹地的大平原,平时是个安静的充满乡土气息的地方。 |
| 6. | The study is mainly about the irrigating of song nen plain region and its water - salt sport environment condition and artificial factor etc 摘要主要研究了松嫩平原地区的灌溉方式、土壤水盐运动状况、环境条件以及人为因素等,对土壤次生盐渍化的形成,提出预防与防治具有重要的意义。 |
| 7. | It is demonstrated that the calculation methods in this article are efficient and are satisfied with the analysis of " four waters " conversion in plain regions . it can be used as a tool to evaluate water resources in plain areas 结果表明,本文的计算方法有效可行,效果较好,适合平原区“四水”转化关系分析,可以用于评价平原区区域水资源量。 |
| 8. | Main research results and conclusions of the study are as follows : 1 ) an assessment indexes framework for evaluating aesd in plain region was established , which is composed of four hierachical levels ( objective level , systemic level , static level and elements level ) , four subsystems and 38 assessment indicators . results of application showed that the indexes framework was suitable , practical , convenient and scientific for assessment 主要研究结果和结论如下: 1 )确定了由目标层、系统层、状态层和要素层构成,具有4个子系统、 38个具体评价指标的区域农业生态系统可持续发展定量评价指标框架,应用研究表明该评价指标体系具有科学、简便、实用性强等特点,适宜于平原地区县级区域进行农业生态系统可持续发展的评价。 |
| 9. | Finally , the means of how to take the form of map to describe the models depending on gis software was given in this paper . to explore and verify the operation and correction of the system , the author selected the typical luancheng county in the plain region as a demonstration . according to the concrete situation of luancheng county , the author judged the market system growth perfect 本文以河北平原区有代表性的栾城县为实证,针对该县实际情况,通过综合评价得出栾城县集贸市场发育程度为健全型,其集贸市场可划分为四级,一级市场为城关镇市场;二级市场有:冶河、西营等6个:三级市场有:南郄马、南高等9个:四级市场有:于底、城郎、范台等13个。 |
| 10. | The quaternary environmental evolution of the beijing plain region mainly depends upon the neotectonics and palaeoclimatic changes , which controlled and influenced the distribution , evolution of depositional areas and uplifting erosional areas and changes of sedimentary types , and also the scale and scope of quaternary transgressions 冷暖交替的软体动物组合,反映了本区第四纪时古气候的变动特点。北京?通县平原地区的第四纪环境演变,主要取决于气候变化和新构造运动。 |