soil fertility factor meaning in Chinese
土壤肥力因子
Examples
- Every soil fertility factor was recorded both in the early 1980s and 2000 at the same sample plot . all socio - economic data were derived from interviews with the production team leaders in charge of the sample plots , and were also gathered in both periods . after describing the trends in changes in soil nutrients from the early 1980s to 2000 , the dissertation sets up an econometric model to measure the possible impact of socio - economic factors on soil fertility
本研究样本数据的特点之一是每个样本地块都有80年代初和2000年两个时期的4个土壤肥力因子的观测值，同时两个时期的土壤采样季节、技术以及实验分析方法等基本相似，这保证了土壤肥力数据具有完全的可比性。 - Based on the principle of significant effect of soil fertility factors on forest growth , soil physical factors ( natural water content , bulk density , total porosity , capillary porosity , aggregate degree , coarse silt and physical clay ) , chemical factors ( om . total n , alkali - hytrolyzable n , total p , humus and ha / fa ) and biological factors ( urease , acidphosphotase , invertase and microbes ) were selected as evaluation index system of soil fertility . applying principal component analysis , soil ifi of subalpine coniferous forest was calculated
从土壤物理、化学、生物学三方面出发，建立了川西亚高山针叶林不同演替阶段土壤肥力评价指标体系，应用主成分分析，计算出不同演替阶段土壤肥力综合指标值( ifi ) ，各演替阶段大小顺序为： 10年生云杉林地迹地原始林地次生桦木林地30年生云杉林地20年生云杉林地50年生云杉林地60年生云杉林地40年生云杉林地。 - This article , with the help of gis , first uses geostatistics to study temporal and spatial changing of soil fertility factors , such as oganic matter total n total p , total k available k available p ph and cec , in wujin city in nearly 20 years , and draws these conclusions : soil acidification of large area exists in the city , the content of n is generally lower but it tends to rise , the content of p and k is lower and it ' s still lowering , the content of organic matter is medium but it tends to add , cec ' s quality grade is higher but its content is lowering
土壤肥力质量时空演变对于农业生态与社会、经济的持续发展意义重大，而gis在土壤肥力质量评判中发挥日益重要的作用。本文首先基于gis支持下，运用地统计学，研究了武进市近20年全n 、全p 、全k 、有效p 、有效k 、 ph 、 cec和有机质等土壤肥力要素的时空分异状况，得出：存在大面积土壤酸化现象、 n素含量总体较差但趋于提高、 p素和k素含量较低且继续降低、有机质含量中等但有增加趋势、 cec质量等级较高但含量趋下降。 - Then , with the help of gis , i selected 8 soil fertility factors mentioned above and soil texture as parameters , used blocks generated by overlaying each factor theme as assessing unit , modified nemoro fomular , and then i assessed the overall soil fertility quality of wujin city , we know : the soil fertility quality of the city is generally medium or worse , in it , the district of riverine polder the district of menghe even fields the district of taige even fields and the district of hilly lands are on " worse " level , and the district of zhengheng polder the district of lakeside polder and the district of taoge even fields are on " medium " or " better " level
接着在gis支持下，选取以上8项土壤肥力要素并加上土壤质地作为参数，以各要素图层叠加产生的图斑作为评价单元，修改内梅罗公式，对武进市土壤肥力质量进行综合评价，得出：土壤肥力质量中等偏下，其中，沿江圩田区、孟河平田区、太涌平田区和低山丘陵区主要处于“较差”水平，而郑横圩田区、沿湖圩田区、洮?平田区主要处于“中等”及“良”水平。 - Using the methods of summation by giving a mark and main component analysis , the result indicates that the methods of main component analysis is identical better with reality than the methods of summation by giving a mark , the differentiation trend of types of site conditions of cornus officinalis chiefly receives the accuse in soil fertility factor and the general configuration of the earth ' s surface factor
结果表明：主分量分析法与打分求和法相比，以主分量分析法划分的类型与实际吻合更好；山茱萸立地条件类型的分化趋势主要受控于土壤肥力因子和地貌因子。