查询词典 cultivated land

According to the characteristics of soil and geographical elements of the study area, we used GIS software, combined with simulation analysis method, to explore the appropriate design that is suitable for farmland, water, road and forest in cultivated land consolidation for chernozem area.

该文将GIS与遥感影像引入土地整理，根据研究区土壤特性与地理要素，通过运用GIS软件并结合模拟分析方法，探讨适宜于黑钙土地区耕地整理中田、水、路、林的设计方法。

The research of the composite index number of soil quality in different utilizing ways suggests that, Qi of forest plantation is obviously higher, whereas qi of sloping cultivated land is the lowest.

不同利用方式下土壤质量综合指数研究表明：人工林的QI值显著偏高，坡耕地的QI值最低。

The result showed that there was reverse correlation between cultivated land area and urbanization leve1,the Coordinated index between urbanization and farmland area was a nonlinear relation in the past 30 years,the overall trend was"concessive and basically concessive→not concessive→concessive and basically concessive".

结果显示，30年间成都市城市化水平与耕地面积变化呈现出显著的负相关关系，城市化水平与耕地面积协调度呈阶段性分布，总体呈现出"调和和基本调和→不协调→调和和基本调和"的趋势。

The main environment geological question is: The earth"s crust where the faultage and earthquake are active is unstable; collapse , landslide, mud-rock flow and soil erosion ; The underground karst subsides, seepage question; Basic rock expand, expend and compress soil body, the salt deposit corrode out of shape and groundwater"s corrodent harm; The soft soil question of basin; The soft rock body, cracked rock and the weathering rock are relatively poor stability; High and cold regional highways and railways" frozen soils freeze and melt calamity problem; The around rock of tunnel are unstable because of the coal seam gas, spring water, underground developed area; Project cutting slopes, constructed abandon soil and reservoir, lake"s ecology geological environmental protection issue; Thedangerous shoal of the channel % submerged reef question; The problem of rebuilding channel project and dock etc.; And the problem of unstable ground and groundwater corrosivity during building airport; At the same time, with the international big pathways" implementation and completions of constructions, adjusting the cities and counties" constructions , the crowd occupy changing , the cultivated land distribute changing and the adjustments of structure, will cause local environmental geological issues outstanding; According to multiple statistical analysis , value calculate and integrated appraise result, in the northwest and southwest of Yunnan, the traffic relatively low density, traffic engineering is relatively weak impact on environment, It is the area where a environme

主要的环境地质问题是：活动性断裂、地震带的地壳不稳定；崩塌、滑坡、泥石流及水土流失；地下岩溶塌陷、渗漏问题；基础岩体膨胀、胀缩土体、含盐层侵蚀变形和地下水的腐蚀危害；盆地软土问题；软弱岩体、碎裂、风化岩体稳定性较差；高寒地带公路、铁路建设的冻土冻融灾害问题；煤层瓦斯、涌水、地下采空区等隧道围岩不稳定问题；工程切坡、施工弃土及水库、湖泊生态地质环境保护问题；航道险滩、暗礁问题；渠化工程、码头等库岸再造问题；以及机场建设中的不稳定地基及地下水腐蚀性问题；同时，随着大通道建设的实施和完成，城镇建设的调整、人群居落的变化和耕地分布及结构的调整组合，都可能造成局部环境地质问题的突出等等。经多元统计分析数值计算、综合评价结果，滇西北、滇西南地区交通密度较低，交通工程对环境的影响程度较弱，是环境地质状况好的区域；有主要高原湖泊分布区的，包括昆明、个旧、文山的滇东南区域，环境地质状况较好；大姚、楚雄、篙明及会泽、昭通一镇雄的区域，即滇中北部中生界红层和滇东北岩溶区，环境地质状况中等；而包括保山、德宏、大理、临沧的滇西地区及景东一墨江以东、双柏一石屏一河口以西及东川一寻甸一曲靖地段的滇中一滇东地区，环境地质状况较差。云南国际大通道建设涉及全省区域，如何利用地质环境、实现可持续发展，就必须依赖于国际大通道建设与地质环境之间良性关系的建立。应本着对区域地质环境客观存在的科学认识原则、建设过程中环境效益优先的可持续发展原则、法制性原则、对大通道建设中环境地质的因地制宜及其可防治性原则。并且从组织管理、不同类型大通道、不同环境地质问题类型等方面，提出了对策措施。最后，提出了建立国际大通道建设与环境地质良性关系的宏观建议。

Therefore, it is significant to study the change of cultivated land in both theory and practice.

因此，展开耕地资源变化的研究具有重要的理论意义和实践意义。

Cultivated land is the base of agriculture production, and is an important factor to ensure food security.

耕地是农业生产的基础，是维护粮食安全的重要保障。

The protection of cultivated land is fundamental national policy of our country.

耕地保护是我国的一项基本国策。

So, rational exploitation and protection of cultivated land resources are the basis of the sustainable development of agriculture.

因此，耕地资源的合理开发利用和保护，就成为农业可持续发展的基础。

Certain quantity and quality cultivated Land is the basic need of human survival and development.

一定数量和质量的耕地是人类生存和发展的基础。

According to the integrated fertility index of all the evaluate units, cultivated land in Mingguang was classified into five grades using the cumulative frequency curve method.

根据明光市评价单元的耕地地力综合指数，利用累积曲线法将耕地地力合理地划分为五个等级，并运用Mapgis6.7绘制耕地地力等级图及统计各等级耕地的面积。

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。