探讨了森林地层在水土保持、养分供应、促进生物呼吸强度和土壤发育等方面的作用。
The function of forest floor on water conservation, nutrient supply, promoting biological respiratory intensity and soil development are discussed.
土壤发育受第四纪冰川影响明显,成土年龄短;
The glacier influence of Quaternary Period affect soil development obviously;
铁、锰在土层中的分化程度,随土壤发育的程度而增加;
The degree of differentiation of iron and manganese in horizons increased with the degree of soil development.
这种风尘沉积作用即使在气候较为湿热的古土壤发育时期也未中断。
The dust sedimentations have never been intermitted even in the soil-forming periods when the climates were warmer and wetter.
从土壤发育程度来看,发育程度较弱的土壤上生产的烟叶质量较好。
Based on the development degree of soil, the developing soil can get better quality of tobacco leaves.
在稳定的土壤发育条件下,土壤剖面有可以鉴别的诊断层,其中一些性状特征沿剖面分异明显。
Soil profiles have the obvious diagnostic horizons and properties and characteristics of soils have distinct change along their profile depth under stable conditions of soil development.
土壤频率磁化率因主要受风化成土作用强度影响,所以能够较好地指示土壤发育程度和相对成土年龄。
Frequency dependent susceptibility, however, dominantly influenced by the intensity of rock weathering and soil formation, can indicate soil development degrees and relative soil ages.
并探讨了森林枯枝落叶层在森林土壤生态系统中对水源涵养、养分供应、促进生物活动强度和土壤发育等方面的功能。
Finally, the function of forest floor on wate conservation, nutrient supply, promoting biological respiratory intensity and soil development are discussed.
李连捷。美国伊利诺州印第安人墓地黄土母质土壤发育的速度。伊利诺大学农学系论文,1943 . Li Lianjie。
Rate of Soil Development of Indian Moundon Peorian Loessin Northern Illinois State. Printed in 1943, by Agronomy Department of Illinois University.
通过对各土系的典型单个土体的全面的理化分析,确定样区土壤发育有淡薄表层、黏化层、黏磐层、水耕表层和水耕氧化还原层5个诊断层;
Through the complete analyzing of representative pedons, there are 5 diagnostic horizons, such as Ochric epipedons, Argic horizon, Claypan, Hydragric epipedon, Hydragric horizon;
较古老的冰川物质层之间是发育良好的土壤,它含有(生活在)温暖气候中的植物的化石。
Between the older layers of glacial material were well-developed soils containing fossils of warm-climate plants.
铅这种重金属,也会污染水和土壤,而且,根据CCHE,铅几乎可以干扰到胎儿发育的各个方面,造成脑和肾的损伤。
This heavy metal, which can also contaminate water and soil, can interfere with nearly every aspect of fetal development, causing brain and kidney damage, according to the CCHE.
塑料薄膜覆盖提高苗床的土壤温度,促进作物较快发育并提早成熟。
Plastic mulch increases soil temperature in the bed which promotes faster crop development and earlier yields.
机械经常在相同地带内通过,会将土壤压紧并限制根系的发育。
Constant passage of machinery over the same area compacts the soil and limits the development of roots.
核桃苗浇水时间可据当地气候条件、土壤水分状况、降雨状况及核桃生长发育情况而定,无论幼树或大树,都要加强土壤水分的调节。
Walnut seedlings watered time according to local climatic conditions, soil moisture, rainfall and walnut growth conditions, both the saplings and trees, to strengthen the regulation of soil moisture.
研究了土壤调理剂对温室西葫芦生长发育及产量、品质的影响。
The effects of soil power application on the growth, yield and quality of greenhouse squash were studied.
它采用盆栽土壤松动和曝气土壤强,根系发育造成的分枝。
It's used in potting soil to loosen and aerate the soil resulting in strong, branched root development.
砂岩发育的土壤主导因子是土层厚度、非毛管孔隙度和腐殖质层厚度。
The major factors of the soil developed from arenite were soil-layer depth, non-capillary porosity and humus depth.
硬覆盖对土壤水热传输及作物生长发育影响的试验研究。
Study of Effects of the Concrete Mulch on Movement of Soil Water and Soil Heat Transfer.
本文分析了福州盆地的土壤特性,探索福州盆地水稻土发育的特点,并提出改良方向。
This paper analyzes the specific properties of the soil in Fuzhou basin and explores the characteristics of the growth of paddy soil in Fuzhou basin.
最后在GIS环境中实现不同母岩上发育的土壤类别空间可变性的数字化表达。
Lastly, geography information system (GIS) mapping to show Spatial Variability of the Soils digitally developed on different parent materials.
覆膜棉花的生长发育加快,从土壤吸收养分的数量大大地增加,产量显著地提高。
Film Cotton's growth and development are speed up because it easy to absorb the nutrients from soil so the output increase significantly.
分析了云南勐海县冬春气候资源和土壤资源能满足冬亚麻生长发育的要求,提出了冬亚麻适宜的播种期和种植区划,为勐海县亚麻产业开发提供参考。
The climate and soil can satisfy the demand of flax growth during the winter in Menghai county. The planting time and the planting divisions were proposed.
免耕栽培有利于水稻根系发育和在土壤中的分布,同时免耕大幅度提高水稻根系的吸收活力。
No-tillage cultivation improved the growth, development and distribution of rice root systems, and enhanced absorption activity of root systems as well.
由降水少量决定的、埋藏深度小而厚度大的薄膜水带的存在是引起土壤干层发育的直接作用的因素。
The key factors causing soil dried layers are great thickness and depth of membrane water zone under ground as well as small thickness of gravity water zone.
结果显示,紫色沉积岩发育的土壤,在一定程度上继承了母岩的特点,化学风化作用微弱。
The results show that the soils have, in varying degree inherited some properties of purple sedimentary rocks for their very weak chemical weathering.
在此基础上,对流动砂丘上土壤的形成发育演变方向以及在土壤分类中的地位和命名等问题进行了探讨。
Onthe basis of above analysis, the formation, development and evolution direction of the soil on mobile sand dunes and its position and naming in soil classification are approached.
已有的研究表明,土壤中重力水的入渗深度能够指示土壤干层的有无和发育强弱,是决定植被类型的最主要和最关键的因素。
The research shows that the influx depth of gravity water in soil can indicate the existence of dried soil layer and the degree it developed, which is the key factor to decide the kind of vegetation.
已有的研究表明,土壤中重力水的入渗深度能够指示土壤干层的有无和发育强弱,是决定植被类型的最主要和最关键的因素。
The research shows that the influx depth of gravity water in soil can indicate the existence of dried soil layer and the degree it developed, which is the key factor to decide the kind of vegetation.
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