Layer analysis style, and according to the imparty of production from different soil, this paper obtain some result by casting, The highest index of dry land is 84. 1 ;The lowest index is 60.
本文采用了定量评价方法，逐步回归分析法、聚类分析法，并依据不同土壤上的产量差异，经计算得出旱地土壤最高指数是84.1，最低指数是60.0，水田土壤最高指数是92.0，最低指数是43.9。
参考来源 - 图们江下游地区耕地土壤资源评价Dryland soil is atmospheric N_2O source and is sink of atmospheric CH_4.2.
就整个麦豆轮作生态系统而言，旱地土壤分别是大气N_2O、CH_4的源汇。
参考来源 - 北京麦豆轮作生态系统NThe N mineralization rates(k_0) was significant larger in foreshore paddy soils than these in upland soils.
水稻土有机氮矿化速率常数(k_0)极显著高于旱地,说明,水稻土有机氮活性大于同期旱地土壤。
参考来源 - 围海造田水稻土肥力特点和氮矿化特征研究·2,447,543篇论文数据，部分数据来源于NoteExpress
这些地区大多数为酸性热带旱地土壤。
Most of these areas are occupied by acid tropical upland soils.
贵州农业土壤硫素输入和输出比较，旱地土壤潜在缺硫。
Compared input and output of s in cultivated soil of Guizhou province, there was problems of potential sulfur deficiency in upland soil.
旱地土壤淹水种稻后的甲烷释放量是黄松土>黄筋泥>成泥土。
Planting of rice was greatly contributed to emission of methane.
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