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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)
- 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
- Another measure of holdup is the k factor used by Bankoff in connection with the bubble flow pattern in gas-liquid flow. 滞留现象的另一个度量是Bankoff在气-液流动的泡状流型中所采用的因数K。
- 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。
- Objective:Our purpose was to proofread alanine aminotransferase(ALT) activity factor(K factor) by hexokinase. 目的 :用己糖激酶法校正谷丙转氨酶 (AL T)活性测定系数 (K factor)。
- 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。
- The correlation equation for prod-uct distribution versus feedstock property and K factor was deduced. 并得出反应产品分布与原料性质及特性因数之间的关系。
- 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]
- These droplets must be large enough to settle rapodly, and this limitation determines the allowable velocity, and therefore the K factor. 液滴必须很大,足以快速沉降,这是确定允许速度的限制条件,因此K系数。
- 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。
- 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。
- 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]
- 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。
- 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)。
- Basing on the basic concept and theory of K factor, The correct selection of K factor value and its im-portance in different experement situation and The method of amendment are discussed. 本文从K系数的基本概念与基本理论出发,针对各种不同条件实验情况讨论了K系数的正确选择的必要性,介绍了相应的K系数修正方法。
- Second, main achievements in the freeze-thaw research are introduced and the changes of the property of soil and the soil erodibility affected by freeze-thaw are analyzed . 介绍并简要分析冻融作用对土壤性质的改变及对土壤可蚀性影响的主要研究成果;
- Objective To study the relationship between ris k factors and lesions of coronary artery in the female. 目的观察女性冠心病的危险因素与冠状动脉造影特点,提高女性冠心病的诊断率。
- A new method is advanced for estimating soil erodibility of the soils in China despite of difference in geographic region and availability of data. 最后提出了我国不同地区及不同资料占有情况下的土壤可蚀性估算方法。
- Soil erodibility value nomograph map 土壤可蚀性诺漠图