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2.Mr. Smith gave a lesson on how to improve soil .
史密斯先生讲了一堂如何改良壤的课。收藏指正
3.A green manure is a crop grown mainly to improve soil fertility.
种植绿肥作物主要是为使壤更加肥沃。收藏指正
4.Effect of soil temperature, soil water status and soil texture on the decomposition was functioned by the? f T,f W and f S?,respectively.
f T、f W 及 f S分别为壤温度、水分及质地对有机碳分解的影响函数 ,它们通过对不同有机物料在实验室控制条件下的培养测定结果得以确定。收藏指正
5.(2) use USDA soil texture classification system instead the original one of BIOME3 and reset the soil hydraulic parameters;
(2)并且采用更为完善的USDA系统壤分类数据库,从新设定壤参数;收藏指正
6.The results showed that the obvious correlativity existed between fractal properties and soil texture. The soil texture was finer (clay content is higher), the value of fractal dimension was higher.
结果表明:壤孔隙轮廓线分形特征与壤质地之间存在着一定的相关关系,即壤质地越细(黏粒含量越高)分形维数取值越大。收藏指正
7.West Indian forage plant cultivated in southern United States as forage and to improve soil.
在美南部栽培的一种西印度的饲料植物,也用于改善壤质量。收藏指正
8.Because of incomplete decomposition of ecomat in the 1st year after mulching, soil texture did not change much and the amount of soil microbe decreased obviously.
由于生态垫在铺设后一年没有充分的分解,壤的结构没有明显的改变。收藏指正
9.Nitrate distribution and accumulation in soil profile in Entisol in northshaanxi, Anthrosol in Guanzhong plain, Paddy soil in southshaanxi, were studied and the relationship between soil texture and nitrate leaching was described in this paper.
研究了陕北黄绵,关中与陕南水稻壤剖面中硝酸盐的分布与累积,分析了硝酸盐淋移与壤剖面粘粒含量的关系。收藏指正
10.improve [ameliorate] the soil
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