A new pretreatment method-orthogonal signal correction (OSC) was presented to eliminate the influence of the noise on soil organic matter (SOM) content prediction.
分析了经过简单处理的土壤样本光谱特性,将正交信号校正与偏最小二乘算法回归相结合,建立了土壤光谱特性与土壤有机质含量之间的定量分析模型。
The spatial variability of soil organic matter(SOM)in the Shiqu County was expressed by the spatial analytic approaches such as ordinary kriging(OK)on the basis of the software ArcGIS Desktop 9.
根据60个土壤有机质含量的样点数据,在ArcGIS9。
Results showed that continuous application of FYM increased SOM successively and eventually reached such a high level as 60g?kga?a(c)-1 in SOM content while maintaining high crop yield.
结果表明 ,长期施用有机肥可以在保持高产稳产条件下使土壤有机质持续增长 ,可以显著影响有机质的增长速度 ,并培肥土壤有机质达到 60gkg- 1的高水平。
Characteristics of spatio-temporal changes of soil organic matter in typical fringe in Beijing for 25 years;
北京典型边缘区25年来土壤有机质的时空变异特征
Spatial variability characteristics of farmland soil organic matter in Pinggu District,Beijing,China;
北京市平谷区农用地土壤有机质空间变异特征
Adaptability of seven leguminous forages and improvement to soil organic matter content in Guangxia grapery;
7种豆科牧草在宁夏广夏葡葡园的适应性及其对土壤有机质的影响
Measurement and analysis of the content of organic matter of soil in Qiqihar area;
齐齐哈尔地区土壤有机质含量的测定及分析
Influence of cryptogamic soil crusts on accumulation of soil organic matter in Gurbantunggut Desert,northern Xinjiang,China;
生物结皮影响下的土壤有机质分异特征
Soil organic matters(SOM) are important components in soil,and they would affect the physicochemical,chemical and biological properties of the soil directly or indirectly.
土壤有机质是土壤的重要组成部分,土壤有机质的存在直接或间接地影响土壤的物理、化学和生物等许多性质。
Based on 137Cs tracer method,the soil erosion rate,organic matters and heavy metals loss on the agricultural lands of Danjiangkou city,Hubei Province,were studied.
结果表明:农用地土壤侵蚀速率从大到小依次为沟谷旱地>坡耕地>菜田>水田>草地>灌丛,耕作土的侵蚀强度多为中度和强度侵蚀,非耕作土则是微度和轻度侵蚀;不同土地利用方式对土壤有机质和重金属分布影响很大,有机质含量分布规律为草地>灌丛>菜田>水田>沟谷旱地>坡耕地;Pb与Ni含量为灌丛>草地>坡耕地>沟谷旱地>菜田>水田;Cr与Cu含量为灌丛>菜田>坡耕地>草地>沟谷旱地>水田;Zn含量为灌丛>菜田>草地>坡耕地>沟谷旱地>水田。
mean residual time of soil organic matter
土壤有机质平均残留期
Effect of soil organic matter on adsorption and desorption of oxytetracycline in soils
土壤有机质对土霉素在土壤中吸附-解吸的影响
Effects of Soil Organic Matter on Soil Fertility and Anti-erodibility in Karst Area;
岩溶区土壤有机质对土壤肥力和抗蚀性的影响
Effects of rapeseed cake on soil organic matter and activities of soil enzyme
菜籽饼粕对土壤有机质和土壤酶活性的影响
Effect of the Management of Organic Matter on Soils Protection in Xingshan Tobacco-growing Areas in Hubei Province
兴山烟区土壤有机质管理对土壤的保护作用
The Relationship among Organic Matter Content and Soil Microbial Biomass and Soil Enzyme Activities
土壤有机质含量与土壤微生物量及土壤酶活性关系的研究
Regional Difference in Organic Matter in Tobacco Soils in Hunan Province and Relations between It and Mineralization of Soil Organic Nitrogen;
湖南植烟土壤有机质区域差异及其与土壤有机氮矿化的关系
The Decomposition and Accumulation of Soil Organic Matter under Film Mulching
地膜覆盖下土壤有机质的分解与积累
Analysis the on Content of Agricultural Soil Organic Matter in Jinzhai Country
金寨县农田土壤有机质含量状况分析
Scaling effect on spatial variability of soil organic matter in crop land
农田土壤有机质空间变异的尺度效应
Advance in Spectral Reflectance Characteristics of Soil Organic Matter
土壤有机质的光谱反射特性研究进展
The Effect of Alternative Freezing and Thawing on Soil Organic Matter and Nitrogen Potassium Nutrition of Black Soil;
冻融交替对黑土土壤有机质及氮钾养分的影响
fibric soil material
纤维质有机土壤物质
hemic soil material
半分解有机土壤物质
sapric soil material
高分解有机土壤物质
Soil Active Organic Matter and Its Relationship with Soil Nutrients
土壤活性有机质及其与土壤养分的关系
CHARACTERISTICS OF ORGANIC MATTERS IN PADDY SOILS DERIVED FROM DARK BROWN SOIL AND RED SOIL
起源于暗棕壤和红壤的水稻土有机质特性研究
Effects of Different Manure Sources on Soil Characters in Upland Red Soil
不同有机肥源对红壤旱地耕层土壤性质的影响
