wet density test method of soilPROBLEM TO BE SOLVED: To provide a method for testing wet density of soil, which is simple and also capable of obtaining, at a low cost, an approximate value of a region that causes no harmful influence on the actual construction work.牧野 昌己...
Impact of postfire logging on soil bacterial and fungal communities and soil biogeochemistry in a mixed-conifer forest in central Oregon Aims Postfire logging recoups the economic value of timber killed by wildfire, but whether such forest management activity supports or impedes forest reco... TN ...
A soil physical parameter, S, is defined. It is equal to the slope of the soil water retention curve at its inflection point. This curve must be plotted as the logarithm (to base e) of the water potential against the gravimetric water content (kg kg−1). The value of S is indicativ...
The odour concentration of the examined sample is therefore: 稀释因素的价值在盘区门限ZITE,平底锅是1 448。 被审查的样品的因此气味集中是: [translate] asoil variables to drive the model include soil bulky density,field capacity, wilt point, and PH value. Parameters including the potential ...
Comparison of Production Efficiency of the Harvesting Organs among Field Crops 2) The difference between the experimental value and the theoretical value was especially large in soybean, peanut, safflower, rape, and castor bean, in ... Shinano,Takuro,Osakl,... - 《Soil Science & Plant Nutrition...
The value of S is indicative of the extent to which the soil porosity is concentrated into a narrow range of pore sizes. In most soils, larger values of S are consistent with the presence of a better-defined microstructure. Much previous work has shown that this microstructure is responsible...
In this case, compaction control on the basis of a target modulus seems preferable. The dry density gives the soil compactness because it is directly related to how many particles are within a given volume; a modulus gives the stiffness of the soil under specific conditions. The two parameters...
avalue of 价值[translate] aWith the development of technology ,our life is getting better and better. However, protecting the environment has become one of the biggest problems in the world. Nothing is more important than fighting against pollution.In my opinion, it is our duty to take care...
The genetic control of germination parameters (germination capacity, peak value, and germination value) in Douglas-fir (Pseudotsuga menziesii (Mirb.) Franc... YA Elkassaby,K Chaisurisri,DGW Edwards,... 被引量: 26发表: 1993年 加载更多研究...
It is well established that increasing soil bulk density (SBD) above some threshold value reduces plant root growth and thus may reduce water and nutrient acquisition. However, formation and elongation of maize seminal roots and first order lateral (FOL) roots in various soil layers under the inf...