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- Classical statistical analyses show significant spatial variability of soil erodibility K values at a scale of small watershed, the variance coefficient of which is 39.94%. 经典统计学方法分析表明,在小流域尺度下土壤可蚀性K值存在很强的空间变异性,其变异系数达39.;94%25。
- soil erodibility K Value 土壤可蚀性(K值)
- erodibility K value 土壤质地转换
- The relation between WSA and soil erodibility is studied in this paper. (4)通过研究土壤可蚀性与土壤团聚体水稳性之间的关系,在现有资料的基础
- The influences made soil aggregation decreased, clay content increased and finally soil erodibility enhanced. 其结果是团聚作用降低而黏粒含量增加 ,最终导致土壤的可蚀性加大。
- The research on soil erodibility is a crucial tache in understanding the mechanism of soil erosion. 对土壤可蚀性的研究是认识土壤侵蚀机理的一个重要环节。
- On the bAsis of (RM1, RM) and (RM, RM2) predicating n and k value and photocurrent before ark (Smax) of spectral . 出现后,S/Smax约为60%25时,根据(RM1,RM)和(RM,RM2。)
- Dickinson ,W T ,Pall ,R ,Wall , G J .Seasonal variations in soil erodibility[J ].ASA E , 1982 ,82 : 2 561 - 2 573. 王忠林;李会科;贺秀贤.;渭北旱塬花椒地埂林土壤抗蚀抗冲性研究[J]
- A precise k value of SFL electrode array in homogeneous formation has been gained with the help of a more practical physical model. 本文利用更贴近实际的物理模型,精确求出了球形聚焦电极系的均质k值。
- Soil erodibility value nomograph map 土壤可蚀性诺漠图
- The factors of distance, hole diameter, K value and temperature affecting the measuring precision of K value of angle probe were analyzed. 分析距离、孔径、K值和温度等影响斜探头K值测量精度的因素。
- Soil erodibility is an important indicator to evaluate soil susceptibility to erosion, and an important parameter in soil erosion prediction. 摘要土壤可蚀性是评价土壤对侵蚀敏感程度的重要指标,也是进行土壤侵蚀预报的重要参数。
- The calculated n and k value of different temperature changing with wavelength compare with Brewster value, conclude that the value of particle is consistent with the law of bulk. 将不同温度的随波长变化的粒子n、k计算值与Brewster计算值的规律进行比较,得出粒子与大块物质的变化规律基本符合。
- A study was carried out on the issue of soil erodibility values of different soil erosion regions in China using the data obtained from field observation of plots. 本文运用野外观测资料,研究了我国不同水土流失区的土壤可蚀性值问题。
- The four main contents in cement clinker (C 3S, C 2S, C 3A, C 4AF) were prepared by CP raw materials, and then were studied quantitatively by XRD K value method. 用化学纯原料制成水泥熟料中的四个主要矿物即C3S ,C2 S ,C3A和C4 AF ;
- NIU De-kui,GUO Xiao-min.The current situation and future advances of research on soil erodibility[J].Journal of Jiangxi Agricultural University,2004,26(6):936-940. [3]牛德奎;郭晓敏.;土壤可蚀性研究现状及趋势分析[J]
- A process method that only the ascendable circumstances of SPRSQ are considered and the delinable circumstances of SPRSQ are shielded, is used to calculate the best K value. 采用了一种“将SPR-SQ减小的情况屏蔽,只考虑SPRSQ增加的情况”的处理方法,来实现最佳聚类个数K的选择。
- In order to study the characteristic of road slope and soil erodibility,a soil disintegration instrument is developed to test compacted loess disintegration under water. 为研究公路边坡降雨侵蚀的特殊性以及土质边坡的可蚀性,通过观察分析,并利用自行研制的崩解仪进行了压实黄土浸水崩解试验。
- By a discussion on K value, the radiographic technology for thebutt welds in standard elliptic sealing heads consistent with current standards and regulations is presented. 围绕K值展开讨论,提出一种符合现行标准、规程要求的标准椭圆封头拼接焊缝的射线探伤工艺。
- Soil loss is a function of six factors, i. e. rainfall, soil erodibility, slope length and steepness, crop and soil management(Wischmier and Smith,1978). 土壤流失是6项因子的函数,即降雨、土壤耐蚀性、坡长和坡度以及作物和土壤管理(Wischmier和Smith,1978)。