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土壤资源
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  soil resources
     Study on Change of Soil Resources Quantity and Quality in the Peri
     城市化背景下城市边缘带土壤资源数量及质量变化研究
短句来源
     Decision Support System of Regional Soil Resources Management Based on GIS
     基于GIS的区域土壤资源管理决策支持系统
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     Share of soil resources information by WEBGIS
     土壤资源信息共享的WEBGIS实现
短句来源
     WORLD REFERENCE BASE FOR SOIL RESOURCES (WRB): ESTABLISHMENT AND DEVELOPMENT
     世界土壤资源参比基础(WRB):建立和发展
短句来源
     Establishing County Dominion Soil Resources Information System Using MapBasic
     利用MapBasic建立县域土壤资源信息系统初探
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  soil resource
     It is dynamic monitor network that studiesthe soil resource and the moving changes of environment.
     它是以土壤资源和环境动态变化作为主要研究内容的动态监测网络,并以此来监测和研究资源与环境的动态变化。
短句来源
     Jiangsu Province Soil Resource Information consists of Soil Spatial Database, Soil Attribute Database and information development.
     建立江苏省土壤资源信息系统的主要工作有三个方面:空间数据库的创建、属性数据库的创建、空间数据库与属性数据库的集成与信息系统的开发。
短句来源
     Application of Huffman Tree Based on the Information of Remote Sensing for Investigating Soil Resource
     基于遥感信息的哈夫曼优化树在山地土壤资源调查中的应用——以浙江省龙游县为例
短句来源
     Design and Development of Soil Resource Management Information System of Small Towns Based on MapObjects
     MapObjects支持下的小城镇土壤资源管理信息系统的设计与开发
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     Optimum utilization of soil resource and sustainable agricultural development-A case study from Nanping City of Fujian Province.
     土壤资源优化利用与农业可持续发展——以福建省南平市为例
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  “土壤资源”译为未确定词的双语例句
     According to component technology,with Jiangling county of Hubei province as a case,the component GIS development platform of MapObjects and Visual Basic were used to design the spatial databases and attribute databases of small town which could be stored and managed on based on SQL Server 2000 and ArcSDE.
     应用组件式技术,采用流行的组件式GIS开发平台MapObjects与可视化开发语言Visual Basic,以湖北省江陵县为例,设计基于SQL Server 2000和ArcSDE存储管理的小城镇空间数据库和属性数据库,并在此基础上,开发小城镇土壤资源管理信息系统,实现了通用的GIS功能和专业的应用分析功能。
短句来源
     Application of WebGIS in Soil Information System of Guangdong Province
     WebGIS在广东省土壤资源信息系统的应用
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     The Analysis of the Potential Productivity,Exploitation and Utilization of Climate-Soil Resources in Semiarid Area of Jilin Province
     吉林省半干旱区气候土壤资源潜力分析及其开发利用
短句来源
     The low-hilly soil is the main source for planting tea, The disadvantage is short of potassium. Analysis of 32 red soil samples of Hunan provimce, indicated the average content of available potassium in the range of 0-15cm soil depth layer was 73mg/kg, the variation coefficient is 41-8%, and 53mg/kg the 15-30cm depth soil layer, with acv of 54.0%.
     低丘红壤是植茶的主要土壤资源,但钾营养贫乏,对湖南32个土壤样品的分析结果,其中有效钾0~15cm土层平均为73 mg/kg士,变异系数41.8%,15~30cm土层平均 53mg/kg,土变异系数54.0%,速效钾含量随着土层加深逐渐减少。
     Numerical Evaluation of Soil Quality on Xinglong Mountain
     兴隆山土壤资源质量的数值评价
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  soil resources
This is because the dynamics processes associated with soil resources availability are still poorly understood.
      
Soils and soil resources in the southern Far East and their assessment
      
The silvicultural procedures were shown to promote more efficient use of the soil resources by Siberian pine trees.
      
Impacts of overgrazing and reclamation on soil resources in rangeland ecosystems in Huailai Basin, Heibei, China
      
This is because the invasion of shrubs in grasslands increases the heterogeneity of the temporal and spatial distribution of primary vegetation and soil resources.
      
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  soil resource
Seasonal dynamics of fine root biomass, root length density, specific root length, and soil resource availability in a Larix gme
      
In temperate forest ecosystems, seasonal changes of soil resource availability will alter the pattern of carbon allocation to belowground.
      
Studying seasonal changes of fine root biomass, RLD, and SRL associated with soil resource availability will help us understand the mechanistic controls of carbon to fine root longevity and turnover.
      
Multiple regression analysis showed that variation in soil resource availability could explain 71-73% of the seasonal variation of RLD and SRL and 58% of the variation in fine root biomass.
      
This correspondingly weakened the spatial heterogeneity of soil resource distribution.
      
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Cotton plantation in Shensi Province is mostly located in the droughty plains where,according to historical reasons,the cotton yields are low,thus the farmers are often hesitatinglyto choose this crop for their cultivation.According to meteorological analysis and water re-quirement studies,as well as to several years successive high yields obtained in the cultiva-tion trials,we are confident that the suitability of Shensi droughty plains for cotton growingis out of question.Through the analysis of our experimental...

Cotton plantation in Shensi Province is mostly located in the droughty plains where,according to historical reasons,the cotton yields are low,thus the farmers are often hesitatinglyto choose this crop for their cultivation.According to meteorological analysis and water re-quirement studies,as well as to several years successive high yields obtained in the cultiva-tion trials,we are confident that the suitability of Shensi droughty plains for cotton growingis out of question.Through the analysis of our experimental data,the cotton field which gained a yield of50 kilograms per mu.requires 500—700 mm.of rainfalls through the whole growing season.In the middle part of Shensi,500—700 mm.of rainfalls is often concentrated during April toSeptember.Although the variability of rainfall frequency is common,but the yearly,rainfallbelow 400 mm is rare.Furthermore,the soil structure in Shensi is rather nice in keepingmoisture,provided that proper cultivation is to be practiced.In the droughty plain a soilwater content of 15% is recorded during March to May within the layer of 0—10 c.m.of thesoil and with even more moisture below that level whereas it makes a very advantageouscondition for cotton sowing and germination of seeds.Since 1955 to 1958,cotton cultivations in Wu-kun,Chien-shen,and Bu-chen had been de-monstrated with the yields reaching twice and thrice in comparison with the ordinary fields.Hence,the droughty plain cotton plantation has been developed considerably and a yearlyincrease of 54.4% in cultivated area and 128.1% per unit area yields had been obtained in theyears of 1958—1961,as compared with the economic restoration stage right after the libera-tion.The cotton growing in droughty plains is of great economic value to the native farmersas well as to the facility of agricultural mechanization.Owing to the fact that the availability of irrigation in Shensi is still limited in the recentfuture,it will be still an important measure to develop cotton plantation in droughty plains.

根据关中地区水文气象条件和棉花需水规律的研究资料分析,说明关中的气候和土壤资源完全能满足旱地棉花丰产所要求的条件。丰产示范结果进一步证明关中旱地棉田是能够获得高产和稳产的,其关键在于掌握自然特点,运用旱地丰产栽培技术,保证全苗和促进早期发育。

Most beach along the east coast of Jiangsu has greatly been enlarged bydeposition.In the past there thrived both salt industry and farm reclamation.The old reclamation areas for growing cotton and cereals is situated to theeast of Fangong Dike.Owing to the lake of unified planning there is still avast area of over a million mu(1 hectare=15mu)off the dike to be developed.It is urgent to carry out unified planning and overall management for the coastalarea in Jiangsu.On the earth there are four spheres,namely...

Most beach along the east coast of Jiangsu has greatly been enlarged bydeposition.In the past there thrived both salt industry and farm reclamation.The old reclamation areas for growing cotton and cereals is situated to theeast of Fangong Dike.Owing to the lake of unified planning there is still avast area of over a million mu(1 hectare=15mu)off the dike to be developed.It is urgent to carry out unified planning and overall management for the coastalarea in Jiangsu.On the earth there are four spheres,namely hydrosphere,letbo-sphere,atomosPhere,and biosphere.Coastal zone neighbours with the abovementioned four spheres,and has an ecological system of its own.Subjected tothe flood and ebb of tides,the beach slopes form different soil ecological typeswith orderly succession.Therefore,for its development and utilization,rationalplanning and management must be based upon soil ecological conditicns.Thispaper expounds the necessity of strengthening the unified planning and developingof the mud flat on the basis of the soil ecological viewpoint and the characte-ristics of soil resources and the experiences of soil improvement and fertili-zation in the old reclamation area.

江苏省东部沿海,大部分海滩淤长迅速。历史上海涂的利用曾由制盐发展为农垦,形成了今日范公堤以东大面积的棉粮新老垦区。由于过去围垦缺乏统一规划,目前海堤外尚有近百万亩滩涂有待围垦开发,因而迫切需要对江苏省沿海地区进行统一规划和全面整治。海岸带是地球表面四大圈层——岩石圈、水圈、大气圈和生物圈直接接触的地带,自成一生态系统。海涂土壤在潮汐作用下,在具有一定坡度的滩面上,形成了不同的土壤生态类型,并作有顺序的演替。土壤的开发利用,必须根据海涂的土壤生态条件,进行合理的规划和整治。本文根据海涂土壤资源特点和堤内垦区已有的改土培肥经验,以土壤生态观点论证了江苏省加速海涂开发,加强统一规划的必要性和可行性。

The Badagong mountain nature reserve is situated on the northwestern border ofSangzhe county, Hunan Province, bordering upon the northeastern edge of palaeo-con-tinent of the Yunnan-Guizhou Plateau. Its altitudes are generally more than 1,000meters above sea level. The terrain is higher in the north-west than in the south-east, sloping from north to south like a terrace. The area is mainly composed ofsedimentary rocks and metamorphic rocks. The climate is mild and rainy with a vege-tation of evergreen-deciduous...

The Badagong mountain nature reserve is situated on the northwestern border ofSangzhe county, Hunan Province, bordering upon the northeastern edge of palaeo-con-tinent of the Yunnan-Guizhou Plateau. Its altitudes are generally more than 1,000meters above sea level. The terrain is higher in the north-west than in the south-east, sloping from north to south like a terrace. The area is mainly composed ofsedimentary rocks and metamorphic rocks. The climate is mild and rainy with a vege-tation of evergreen-deciduous forests. The major characteristics of the soil formation are heavy leaching and distinct illuvial-clayization conditioned by heat and water, and vigorous organic matter accumulation affected by the vegetation. The main soil types are mountain yellow-brown earth and limestone soil, and mountain marshy soils in localized areas. There is a distinct profile of vertical distribution with yellowred earth at the bottom (below 460m), mountain yellow earth in the middle (460-1,000 m) , and mountain yellow-brown earth at the top (above 1,000 m). In the area distributed with mountain yellow carth and mountain yellow-brown earth, there is limestone soil, and mountain marshy soils and paddy soils in smaller depressions. For rational utilization of soil resourses, we must conserve the secondary forests now still existing, prevent deforestation for arable cultivation and medicinal herbs planting, take active steps in afforestation and develop valuable tree species, so that this "green treasure-house" will maintain sustained yield.

湘西八大公山自然保护区位于湖南省桑植县西北边境,处于云贵高原古陆块东北边缘,海拔一般在1000米以上,地势西北高东南低,由北而南呈台阶式倾斜。境内主要由沉积岩及沉积变质岩组成。气候温和多雨,植被主要为常绿落叶阔叶混交林。土壤形成的主要特点是与水热条件相联系的强烈的淋溶过程和明显的淀积粘化过程以及在植被影响下的旺盛的生物累积过程。其主要土壤类型为山地黄棕壤和石灰土及局部的山地沼泽土。土壤的垂直变化规律明显,自下而上依次为黄红壤(海拔460米以下)、山地黄壤(海拔400—1000米)和山地黄棕壤(海拔1000米以上)。在山地黄壤和山地黄棕壤的分布地带内,尚有石灰土及低洼地的山地沼泽土和水稻土。为了合理利用土壤资源,必须保护现有的原始次生林,制止乱砍滥伐、毁林开荒和毁林种药,大力植树造林,积极发展珍贵树种,以使这块“绿色宝库”能够永续利用。

 
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