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   annual soil 的翻译结果: 查询用时:0.187秒
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annual soil
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  年土壤
     With this method, the erosion area in the mine area was predicted to be 5.53 km2, and the annual soil loss be 4.83×104 t.
     结果表明,全区土壤流失面积5.53km2,占矿区总面积的65.07%,年土壤流失量4.83×104t。
短句来源
     The status of soil and water losses during 1997-2000 in Nanjing is analyzed using GIS of soil and water conservation and model of soil and water losses. The area of soil and water losses, annual amount of soil erosion, and mean annual soil erosion modulus belonging to low degree and more than low degree (>500t/km2·a) are 1288 km2, 335×104 t and 2603t/km2·a respectively.
     利用南京市水土保持GIS,结合水土流失定量监测数学模型,得到南京市1997-2000年平均水土流失状况,其中轻度(>500t/km2·a)以上(含轻度)水土流失面积1288km2,年土壤侵蚀总量335 万t,年平均土壤侵蚀模数2603t/km2·a。
短句来源
     The surface runoff seldem forms in forest land. The annual soil loss is 1793.9kg/hm 2 in grassland.
     林地很少产生地表径流,草地年土壤流失量17939kg·hm-2;
短句来源
     The rates were used to estimate annual soil respiration amount of these three forests. As a result, the annual soil respiration amount was estimated as 1132 g CO 2·m -2 ·a -1 for B. platyphylla forest, 1431 g CO 2·m -2 ·a -1 for Q.
     据此并根据气象资料推算得到了白桦林、辽东栎林和油松林的年土壤呼吸量分别为1132gCO2m-2a-1,143gCO2m-2a-1和866gCO2m-2a-1。
短句来源
     The annual soil erosion modulus of spoil slopes created by city construction that is situated in a hilly region of south China, taking Chongqing Municipality as a representative is as high as to 100 000 ton/km 2, 11 times higher than that of the uncovered wasteland and that can reach to 300 000 ton/km 2 during a wet year.
     以重庆市为代表的南方山地丘陵城市建设造成的弃土坡 ,年土壤侵蚀模数达 10万t/km2 以上 ,比裸露荒地年侵蚀模数大 9~ 11倍 ,丰水年可达 30万t/km2 以上。
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  “annual soil”译为未确定词的双语例句
     Annual soil water deep leaching reached 33~48 mm(averaged 39 mm) in 1998/1999 cropping year and 90~92 mm(averaged 90.7 mm) in 1999/2000,accounting for 10% and 19% of the total amount of irrigation plus rainfall,respectively.
     在1998/1999和1999/2000两个作物轮作年中,土壤水分的深层渗漏损失分别为33~48 mm(平均39 mm)和90~92 mm(平均90.7 mm),分别占降水+灌溉总量的10%和19%;
短句来源
     The results show that mean annual soil respiration rate is (400±29) mg(CO-2)/(m 2·h), while CO 2from the litter decomposition accounts for 42% of the total CO 2 emission from the soil surface.
     自然状态下土壤呼吸速率的年平均值为(400±29)mg(CO2)(m2·h),其中由凋落物分解释放的CO2占土壤总呼吸的年平均比例为42%;
短句来源
     (3) Soil fertility: the five treatments of sod culture,paraquat,glyphosate,G-G-P and P-P-G could enhance the annual soil nutrients(N+P+K+OM) by 7.1%,6.9%,5.3%,6.2% and 6.6%,respectively,while the tillage without herbicide reduced by 4.4 %,as compared with the original soil.
     (3)土壤肥力,以土壤OM,N,P2O5,K2O总量增减率看,清耕法为-4.4%,生草法7.1%,克无踪6.9%,草甘膦5.3%,克克草6.2%,草草克6.6%。
短句来源
     and the Nash-Sutcliffe model efficiencies of event soil loss simulation and annual soil loss simulation were 0.853 and 0.758,respectively.
     对次降雨和年平均土壤侵蚀量模拟的Nash-Sutcliffe有效性ME分别为0.853和0.758。
短句来源
     Average annual soil erosion intensity in hilltop,hillside and neck are 2125,4676,1759 t/(km2·a),respectively.
     丘顶、丘坡和鞍部的年平均侵蚀强度分别为2125、4676、3625 t/(km2.a)。
短句来源
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  相似匹配句对
     ANNUAL VARIATION OF SOIL WATER IN ARTIFICIAL SWARD
     人工草地土壤水分周年变化规律的研究
短句来源
     Annual Variation Rule of Soil Humidity in Henan Province
     河南省土壤湿度年变化规律
短句来源
     M,soil nutrition.
     二等{NP,NPZnK,M};
短句来源
     annual cost;
     年费用计算;
短句来源
     soil fertility;
     土壤肥力;
短句来源
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  annual soil
Some soil physical properties and annual soil moisture dynamics are studied on some abandoned fields of the Bohemian Karst differing in age to find some regular changes during succession.
      
The annual soil CO2 flux was estimated as 1.65 kg CO2 m-2 yr-1.
      
Generally the values of critical loads are increasing from the North to the South and from the East to the West following the bioproductivity, annual soil temperature and alkalinity of deposition increases.
      
Annual soil respiration was 52.3 t CO(2) ha(-1) yr(-1), the highest among those determined in Japan.
      
The annual soil CO2 efflux in trenched plots was 353?g C m-2 year-1 at H1 and 425?g C m-2 year-1 at H2.
      
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This study was conducted from 1980 to 1984 in Zhu-Ting forest area, Hunan Province. The study was to find the effects of different ways of site preparation on soil and water conservation and the growth of the young stands of Chinese fir, for the purpose to choose the better way of site preparation based on scientific data.The climate of Zhu-Ting forest area is of subtropical type. The mean annual temperature is 17.5℃, mean annual preciptation 1417.3mm, maximum annual preciptation 1746.8mm. The area is hilly...

This study was conducted from 1980 to 1984 in Zhu-Ting forest area, Hunan Province. The study was to find the effects of different ways of site preparation on soil and water conservation and the growth of the young stands of Chinese fir, for the purpose to choose the better way of site preparation based on scientific data.The climate of Zhu-Ting forest area is of subtropical type. The mean annual temperature is 17.5℃, mean annual preciptation 1417.3mm, maximum annual preciptation 1746.8mm. The area is hilly in topography with an altitude of 200—300m and its soil is acidic red soil.The runoff plot-design with four ways of site preparation has been adopted. Each runoff plot is 160m~2 on which 48 seedlings were planted with 2m×1.7m in space. A rainfall gauge were installed in the experimental area to record the amount of rainfall and its intensity. Soil loss and water runoff were measured after each rain. The height and diameter growth of the young stands were measured yearly.Data of 5 years show that the amount of rainfall, rain intensity, topography and ways of tending have significant effect on soil erosion. Capability of water and soil conservation was very different among four ways of site preparation—site preparation of all surface, site preparation by digging trenches, site preparation in strip, site preparation in pit, the mean annual soil losses were 3.144t/ha, 0.454t/ha, 0.06t/ha, 0.023t/ha, the mean annual surface runoff were 9.68mm, 4.68mm, 1.76mm, 0.92mm, respectively. The pit and stripe site preparation give better result of water and soil conservation than the others. The total height growth is as well affected by different ways of site preparation, like wise the mean total height is 2.64m, 2.96m, 1.9m, and 1.05m, respectively. The site preparation by digging trenches and all surface site preparation give the best result on the growth of young stands. The soil losses of all site preparation increases with increasing slop up to a critical point 25°. then a rapid increase happend in soil loss with further increase in slope. According to the close relationship between soil loss and slop, it is very important to apply all surface site preparation carefully.

本文对不同整地方式的水土保持作用和杉木幼林生长效果,进行了5年的连续定位观测。整地方式的水保作用与降雨量、降雨强度、前期降雨以及地形和抚育措施等均有密切关系。水保能力以穴垦最大,其次为水平带垦,再次为撩壕,全垦最小。平均每年每ha的固体迳流分别为0.023t,0.06t、0.454t、3.144t,液体迳流分别为0.92mm、1.76mm、4.68mm、9.68mm。全垦坡度超过25°,流失量急剧增加。但杉木幼林高生长,以撩壕的为最好,分别比全垦、水平带垦和穴垦高10.8%、35.5%、65.5%。单位面积以撩壕投工量最多,分别比全垦、水平带垦和穴垦多37.5%、53.8%、76.3%。

Based on the silt measure of reservoirs and ponds and the investigation ot all factors concerned, after the statistical analyses of all informations, this paper presents a mathematical erosion model used for the small watershed in the loess areas. The research results show: the prediction equation for annual soil loss in a small watershed which is based on the analyses of the leading factors has a higher precision. The equation objectively reflects the comprehensive roles between the concerned factors....

Based on the silt measure of reservoirs and ponds and the investigation ot all factors concerned, after the statistical analyses of all informations, this paper presents a mathematical erosion model used for the small watershed in the loess areas. The research results show: the prediction equation for annual soil loss in a small watershed which is based on the analyses of the leading factors has a higher precision. The equation objectively reflects the comprehensive roles between the concerned factors. It not only calculates, according to the given-data, both previous and present soil loss each year, but predicts the annual soil loss at a certain rainfall level in .the future. In the meantime, this paper more comprehensively makes quantitative analyses of soil erosion law in the loess hill area and indicates the interactions and relationships between the factors influencing soil loss. So it gives the reliable functions to establish a watershed management plan and to control soil erosion with the different efforts.The research results have been applied to the local areas and adopted by the foreign specialists of WEP/FAO evaluation mission.

木文在实地测量水库、塘坝淤积量和全面调查影响因子的基础上,利用计算机对获得的大量资料进行了统计分析,建立了黄土丘陵沟壑区小流域土壤侵蚀数学模型。研究结果表明:根据影响土壤侵蚀的主导因子建立的小流域年土壤流失量预报方程,具有较高的精度。预报方程比较客观地反映了各个影响因子对小流域土壤侵蚀的综合作用,它不仅能够根据给定的条件,估算流域内过去和现在的年土壤流失量,而且能够预报未来某一降雨水平的年土壤流失量,同时利用本方程对流域土壤流失量及其影响因子进行定量分析,这对于判定小流域治理总体规划、布设各项治理措施、进行流域管理以及有效地控制土壤侵蚀等提供了可靠依据。 本文研究的结果,已在西吉县防护林工程建设和全县水土流失综合治理中广泛应用,并被 WFP/FAO 中期评价组有关国外专家所采用。

The soil loss area of China is 1,500,000km~2, being one sixth of the landarea of the nation, the annual soil loss amount is 55,000 million ton ormore, farmland correspoding to 1,600,000ha. large and 17 cm thick is des-troyed. If it goes as this for long, the great loss would be irretrievableonce the developed soil loss has brought harmness and dangerous conse-quences. From now on the soil conservation problem should be an impor-tant topic for discussion in the work of each grade government;...

The soil loss area of China is 1,500,000km~2, being one sixth of the landarea of the nation, the annual soil loss amount is 55,000 million ton ormore, farmland correspoding to 1,600,000ha. large and 17 cm thick is des-troyed. If it goes as this for long, the great loss would be irretrievableonce the developed soil loss has brought harmness and dangerous conse-quences. From now on the soil conservation problem should be an impor-tant topic for discussion in the work of each grade government; effectivemeasures should be adopted such as increasing the funds of harness, formulating the policies and safeguarding the activity of farmers. Assoil and water conservation is also a major task of the water conservancydepartment, the old idea thinking only the water conservancy engineeringas the orthodox task must be changed. Great number of reservoirs havefully deposited and have lost effectiveness, which is the inevitable punish-ment to the water conservancy department,always neglecting soil and wa-ter conservation, and saying yes but meaning no. Mistake and setbackhas given bitter lessons. For this the special technical cadres, especiallythe leaders in authorities of various grades for soil and water conserva-tion, ought to be cultivatied in great attention, in order to well operatethe harness of soil loss.

目前,全国水土流失面积已达150万平方公里,占国土面积的1/6;年土壤流失量50多亿吨,每年毁掉相当于17厘米厚的耕地160多万公顷。这样长此下去,一旦水土流失发展到对农业构成威胁时,那么损失将是不可挽回的。今后,各级政府工作中,水土保持应是一项重要的议题,增加治理经费,制定相应的政策,保护农民的积极性;水土保持同样是水利部门的正业,必须纠正水利工程才是水利部门的正统业务的旧观念。一向轻视水土保持的水利部门,大批水利工程淤满失效,就是应得的惩罚。错误和挫折,教训是沉痛的,必须时刻不忘水土保持;要重视水土保持专业技术干部的培养,特别要强调培训各级政府领导干部,以便切切实实抓好水土流失的治理。

 
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