查询词典 cultivated land

Cultivated land quality was assessed by BP neural network in Dazu County, Chongqing. The assessment results showed that paddy lands were mainly of the second-grade and third-grade, while dry lands were mainly of the first-grade and second-grade. It illustrated the high natural quality of the cultivated land, but the natural quality only reflected land natural characteristics. Therefore, influence coefficient was used to modify natural quality index based on the investigation to households. At the same time, by using the household income as the value of cultivated land, the impact of natural quality and investment structure on the value were further discussed. The results showed that trinomial equation and binomial equation were fitted to reflect the relationship between natural quality and income.

该文采用BP神经网络模型对重庆市大足县耕地自然质量进行评价，发现研究区水田自然质量等级以二等地和三等地为主，旱地以一等地和二等地为主，耕地自然质量总体偏高；但耕地自然质量仅仅是耕地自然属性的反映，因此在基于对研究区农户行为调查的基础上，采用"影响力系数"对耕地自然质量进行修正，并将农户收益作为耕地质量货币化价值的表现，进一步讨论了耕地自然质量和农户投资结构对这种价值的影响以反映对耕地质量的影响。

This paper discusses grain security in Guanzhong basin based on the model of cultivated land pressure index and minimum area of per capita cultivated land through using Lotus 123 for Windows software and setting up the databases of " people-cultivated land-grain production ".

本文根据最小人均耕地面积和耕地压力指数理论，应用趋势预测分析和回归分析方法，建立研究区域粮食安全状况预测模型，进行预测分析研究。论文主要以陕西省关中地区为例进行分析与实践论证。结果为，1999年关中地区粮食处于安全状态，对于各个地区而言，西安和铜川的粮食状况不容乐观；而宝鸡、咸阳、渭南和杨陵区粮食状况相对安全。特别是杨陵区，在农业科技不断进步的作用下，耕地生产力水平提高，因此粮食状况最安全。

The results show that population change is the main cause for cultivated land reduction in Suzhou City since the reform and opening. In addition, changes of the urbanization rate and proportion of the tertiary-industry added value to regional GDP of the area also play an important role in the cultivated land reduction. In the scope of observational data, the relationship between the prosperous level and the cultivated land area is similar to the Environmental Kuznets Curve, and Suzhou City is at the early stage of the curve, that is, the period of prominent contradictions.

结果表明：在诸多影响因素中，人口数量的变化是引起改革开放以来苏州市耕地面积减少的主要因素；而第三产业增加值占地区生产总值比重和城市化率的变化对耕地面积的减少也发挥着重要作用；在观测数据范围内，富裕度和耕地面积之间存在类似环境Kuznets曲线，并且苏州市正处于该曲线的前期阶段，属于矛盾的凸显期。

Whereas a cultivated land which has been occupied for non- agricultural construction upon approval and can sure start construction within one year is found cultivable and yieldable, it should be cultivated by the unit or individual that originally cultivates the land or cultivated by units occupying the land.

已经办理审批手续的非农业建设占用耕地，一年内不用而又可以耕种并收获的，应当由原耕种该幅耕地的集体或者个人恢复耕种，也可以由用地单位组织耕种

Whereas a cultivated land which has been occupied for non-agricultural construction upon approval and can sure start construction within one year is found cultivable and yieldable, it should be cultivated by the unit or individual that originally cultivates the land or cultivated by units occupying the land.

已经办理审批手续的非农业建设占用耕地，一年内不用而又可以耕种并收获的，应当由原耕种该幅耕地的集体或者个人恢复耕种，也可以由用地单位组织耕种；一年以上未动工建设的，应当按照省、自治区、直辖市的规定缴纳闲置费；连续二年未使用的，经原批准机关批准，由县级以上人民政府无偿收回用地单位的土地使用权；该幅土地原为农民集体所有的，应当交由原农村集体经济组织恢复耕种。

Based on long-term statistical data of cultivated land and economy, and land use survey data since municipalized, this paper focuses on relation between cultivated land use change and socio-economic development, and the cultivated land change since municipalized.

根据重庆市1952-2003年长序列耕地和经济统计数据及1997年重庆市直辖以来土地利用调查数据，重点分析了重庆市耕地利用变化与社会经济发展的关系，以及直辖以来耕地的变化情况。

In order to make the current grade-determination method of the cultivated land more rational, the paper has analyzed the natural and social economic factor of cultivated land quality deeply. Many ideas, including the theoretical foundation on grade-determination, the authenticity of the basic materials, the division of the index district, the determination of the appointed crops and their parameters , the largest theory output of the crop and the definition of the suitable range about index district, the control of the equivalence district in the county , the revision of the multiple crop index and the application of GIS ,etc. have been deeply discussed, and the current grading model of the cultivated land has been revised.

为使现行耕地分等方法更趋合理，本文以耕地质量评价的相关理论为基础，强调了基础资料对等别划分的重要性，明确了获取方法，并对指标区的划分、指定作物及其参数的确定，作物理论最大产量及其适用范围的界定，县域范围内等值区的控制，土地利用系数的修正、复种指数的修正和GIS在耕地分等中的应用等方法进行了深入探讨，修正了现行耕地分等模型。

The conclusions of this research were as follows:(1) The main current land use structure in Neijiang city were cultivated land and the residential areas and industrial and minings land, and the ratio of cultivated land reached 47.20%. The land use ratio was much higher than average level of the whole province, reaching 79.24%, and the reserve land resource accounted for 20.76% of the whole area.

研究结果为：(1)内江市土地利用现状以耕地和居民点及工矿用地占主导地位，其中耕地面积占全区域总面积的47.20％，土地利用率达到79.24％，大大高于全省平均水平，尚可开发的后备土地资源达20.76％。

The change of cultivated land use quantity shares the same direction with fluctuation of the budget of cultivated land use tax and is variating in the reverse direction of the variation of actual final account of cultivated land use tax.

研究结论：依靠耕地占用税制度安排抑制耕地数量减少需要区分政府的目的与行为，设置合理的耕地占用税预算数与决算数。

According to the models of land use dynamic change, the research on the dynamic change on land use quantity, space structure and land use degree were carried during 1989 and 2001. The results of the research indicated that the area of cultivated land and saline land increased, and the area of meadow, water areas and wetland reduced within 12 years; The variety ratio of cultivated land, meadow, water areas and saline land changed relatively great; and variety ratio of forestland, land used for resident, industrial and mining changed more steady; The land use degree presented a reducible tendency.

研究结果表明，吉林西部在12年内耕地和盐碱地面积增加，草地、水域和湿地面积减少；总体上，耕地、草地、水域和盐碱地的土地利用变化率较大，林地、居民、工矿用地和湿地变化较平稳； 12年间土地利用程度呈减小趋势，全区十个县市中只有白城和扶余的土地利用处于发展期，土地生态环境相对较好，而其他地区由于土地生态环境呈现不同程度的恶化，导致可开发利用的土地资源逐年较少，土地利用潜力小。

He and Nina moved to California and lived at 2005 Ivar Street, Apt.

他和Nina搬到加州，并在2005年伊瓦尔街，公寓生活。

Droperidol （ potently inhibits transfected HERGchannels and this is the probable mechanism for QT prolongation.

氟哌利多有效地抑制了转染的 HERG 钾通道，可能是 QT 间期延长的机制。