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   character of soil 在 农业基础科学 分类中 的翻译结果: 查询用时:0.739秒
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character of soil    
相关语句
  土壤性质
    Basin simulating experiment was adopted to study the character of soil after decomposition of Chinese fir leaf litter mixed with Phoeba bournei and Schima superba. The results showed that the percentage of bacteria to all microbe was from 98.19 to 99.80%,the percentage of fungi to actinomycetes was from 0.12 to 1.01% and from 0.12 to 1.08%,respectively;
    通过盆钵模拟试验对杉木与楠木、杉木与木荷叶凋落物混合分解后土壤性质进行研究,结果表明:土壤微生物区系中,细菌占微生物总数的98.18%~99.80%,真菌、放线菌在微生物总量中的比例差异不显著(P>0.05),分别为0.12%~1.01%和0.12%~1.08%;
短句来源
    1. Employing organic fertilizer could ameliorate the character of soil, increase the capacity of soil nutrient providing and advance soil biological activities.
    1、施用有机肥可以改善土壤性质,提高土壤养分,增加土壤的生物活性。
短句来源
  土壤性质
    Basin simulating experiment was adopted to study the character of soil after decomposition of Chinese fir leaf litter mixed with Phoeba bournei and Schima superba. The results showed that the percentage of bacteria to all microbe was from 98.19 to 99.80%,the percentage of fungi to actinomycetes was from 0.12 to 1.01% and from 0.12 to 1.08%,respectively;
    通过盆钵模拟试验对杉木与楠木、杉木与木荷叶凋落物混合分解后土壤性质进行研究,结果表明:土壤微生物区系中,细菌占微生物总数的98.18%~99.80%,真菌、放线菌在微生物总量中的比例差异不显著(P>0.05),分别为0.12%~1.01%和0.12%~1.08%;
短句来源
    1. Employing organic fertilizer could ameliorate the character of soil, increase the capacity of soil nutrient providing and advance soil biological activities.
    1、施用有机肥可以改善土壤性质,提高土壤养分,增加土壤的生物活性。
短句来源
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  character of soil
Effect of local loads on the character of soil pressure on productive structures
      
The character of soil generation in this area is influenced by the frigid, coniferous forest vegetation, weather, glacier and late soil formation process.
      
A preliminary analysis is made of the change in character of soil formation in regraded and postagrogenic soils.
      
It is suggested that information on the genetic diversity of soils, their properties, and the character of soil management should be specially collected and systematized in order to make strategic decisions aimed at soil conservation.
      
Litter samples from peat podzolic (Stagnic Podzoluvisol) and soddy gley (Mollic Gleysol) soils differing in their chemical and physicochemical properties, geochemical conditions, and the character of soil microbial complexes were analyzed.
      
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The effects of application of some organic materials (animal wastes, sweet elover and crop residue) on the characters of soil organic matter, on the activities of soil enzymes and soil micro-aggregates were investigated by pot and field experiments. The results obtained are as follows: 1) Applying these organic materials continually in high dosage could increase the content of soil organic matter, soil total N, soil humic acid and fulvic acid etc., but had no effect on soil...

The effects of application of some organic materials (animal wastes, sweet elover and crop residue) on the characters of soil organic matter, on the activities of soil enzymes and soil micro-aggregates were investigated by pot and field experiments. The results obtained are as follows: 1) Applying these organic materials continually in high dosage could increase the content of soil organic matter, soil total N, soil humic acid and fulvic acid etc., but had no effect on soil C: N ratio. 21% of shreddeed corn stalk applied four years ago still remained in the soil. This shows that organic materials may have a long-term effect on the content of soil organic matter and other physical and chemical properties of the soil. 2) All these organic materials could increase the content of soil organic matter in heavy fraction but reduce the degree of soil organo-mineral complexation. Sweet clover, cattle, pig and horse manures could increase the proportion of tightly combined humus in organic matter in heavy fraction, while corn stalk could increase the proportion of loosely combined humus. 3) All these organic materials had different effects on soil enzyme activities. Animal wastes and sweet clover could increase the activities of soil enzymes markedly. The effect of corn stalk was weaker. 4) Applying organic materials continually could change the composition of soil micro-aggregates (<0. 25mm). Animal wastes had an obvious effect on increasing the bigger-sized (<0. 25--0. 05mm) micro-aggregates, whereas corn stalk on the smaller ones (<0. 005mm).

在沈阳东陵耕作棕壤上进行了连续大量施用有机物料的试验.3~5年的试验结果表明:1.有效地提高了士壤有机质、全N、腐殖酸总联及胡敏酸碳和富里酸钙的含量,各物料的三年累积残留率为22~37%;2.猪、牛、马粪及草木樨能提高紧结态有机质在重组有机质中的比例,玉米秸秆则提高松结态有机质的比例;3.能较大幅度提高土壤的几种主要酶类的活性;4.改变土壤微团聚体粒级组成。试验还表明,一次大量施用玉米秸秆,其培肥土壤的各种效应可延续到第四年。

This paper analyses the great difference between thea ctual evapotranspiration and the theoretical one by means of wettness,evapotranspiration ratio,efficiency of utilization of rainfall water and the variation of values of characters of soil moisture in farmlands. The analytical results indicate that there is a positive correlation between water surface evaporation and soil evaporation as well as a negative correlation between water surface evaporation and crop evapotranspiration.Nevertheless,the...

This paper analyses the great difference between thea ctual evapotranspiration and the theoretical one by means of wettness,evapotranspiration ratio,efficiency of utilization of rainfall water and the variation of values of characters of soil moisture in farmlands. The analytical results indicate that there is a positive correlation between water surface evaporation and soil evaporation as well as a negative correlation between water surface evaporation and crop evapotranspiration.Nevertheless,the theoretical evapotranspiration mixes the both together,thus appearing to have the positive correlation plus the negative one.As a result,there occurs to have no correlation. This paper has summarized the two principal laws of soil moisture in rainfed lands in North China,i.e.water requirement by summer crops in the drought period in spring depends upon the moisture stored in soil in every other year, and the absorption of soil moisture by root systems is closely connected with rainfall water penetrating into soil i(?)he rainy season. The climatic zonification is based on the analytical equation of moisture physics, and at the same time, this paper deals with characters of each climatic zone and the developing orientation.

本文依湿润度、蒸散比、蒸发比、降水利用率等农田水分特征值的变化情况分析了实际蒸散与理论蒸散的巨大差异:水面蒸发与土壤蒸发成正相关,与作物蒸腾成反相关。理论蒸散把两者混在一起,“出现了正相关加反相关,结果变成不相关的现象”;归纳了北方旱地水分变化的两个主要规律:夏田作物春旱期需水依靠“隔年墒”和作物根系吸水深度大,同雨季入土水分保持了紧密的联系;根据国内外研究现状,用简化土壤蒸发方程处理的水分平衡产量预报方程作为区划工具,确定有作物代表性的气候指标,对我国北方的干湿气候进行了区划,分析了各气候区干旱表现形式,并对全面开发的途径进行了探讨。

Brown-red earth, yellow-brown earth and yellow sinnamon soil are the major tran-sitional soil groups located in Hubei Province. This paper deals with some characteris-tics of soils derived from granite, earthy shale, and quaternary loess-like deposits, anddiscussed the classification of these soils. The paper shows that Sa ratio, ba value and the activity of clay are more or lessoverlapped in different kind of soils, although there is a tendency of increasing wea-thering and leaching...

Brown-red earth, yellow-brown earth and yellow sinnamon soil are the major tran-sitional soil groups located in Hubei Province. This paper deals with some characteris-tics of soils derived from granite, earthy shale, and quaternary loess-like deposits, anddiscussed the classification of these soils. The paper shows that Sa ratio, ba value and the activity of clay are more or lessoverlapped in different kind of soils, although there is a tendency of increasing wea-thering and leaching from north to south. But some properties such as base saturation,CEC of clay, acidity and mineral composition are more differential between soil groups,which can be used as a diagnostic characters of soil classification in this region.

研究了湖北省不同气候带、不同母质上发育的棕红壤、黄棕壤和黄褐土的主要性状。结果表明,某些性状如土体的Sa、ba值和粘粒的活性等,其风化和淋溶强度虽都有自北而南增强的趋势,但有重叠现象,可作参考性分类依据;土壤饱和度、粘粒的交换量、酸度和粘粒的矿物学组成等在各土类之间有较好的分异性,可作为本地区土壤分类的诊断特性。

 
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