The community structure and dynamics of soil water of Pinus sylvestris var. of the mongolica plantation were studied in a growing season.
对樟子松人工林群落结构和土壤水分动态进行研究。
Another recent study found that a single tillage does not harm yield or soil structure in land that is normally not tilled.
另一项最新研究发现，单独一次耕作不会对通常不耕作的土地产量或土壤结构造成破坏。
Others say the cellular structure of the plants is affected and that the composition of the soil is altered.
另一些人认为是由于作物的细胞结构受影响和土壤成份被改变的原因。
Now we find that it's changed the structure of the soil, and made it much softer.
现在，我们发现它可以改变土壤的结构，使土壤变得更松软。
Haiti's soil is so thin, even massive amounts of chemical fertilizers can't restore soil structure.
海地的土壤非常贫瘠，即使施以大量化肥也无法恢复土壤结构。
Bed planting improves soil fertility and structure and helps reduce erosion, water usage, herbicide use and facilitates mechanical and manual weeding.
垄播改善了土壤肥力和结构，对减少流失、水的利用和除草剂的施用也有帮助，也方便了机械和人工除草。
In the tightly sealed structure, scientists adjust soil moisture and water tension as well as air temperature and humidity to mimic the conditions that rice would face during droughts.
在高度封闭的建筑里，科学家们调节土壤湿度、水张力以及空气温湿度来模拟水稻在干旱时面临的境况。
Worst of all, the physical structure changes if the top soil erodes, making it harder for the land to retain water or fertiliser.
最糟糕的是土壤物理结构的变化，如果表层土壤侵蚀，土壤更难保水保肥。
These orange colored soil blocks express traditional in the area together with the bamboo structure.
这些橙红色的土壤块与传统竹一起表达当地区域结构的传统文化。
A mixture of decaying organic matter, as from leaves and manure, used to improve soil structure and provide nutrients.
堆肥腐烂有机体的混合物，如树叶或粪便，用来改善土壤结构并增加土壤养分。
A field experiment was conducted to study effects of root pruning at returning green stage on population structure, soil water and yield formation of winter wheat.
通过田间试验研究了返青期不同程度根修剪处理对冬小麦群体结构、土壤水分及产量形成的影响。
They will grow good cereal crops so long as soil structure is maintained.
只要土壤结构能够保持，他们就能够种出优良的谷物。
The structure variance of soil nutrient is bigger than the random variance.
毛竹林土壤养分的结构性变异大于随机变异。
Soil organisms as well as enzyme activities perform important functions in soil, including structure improvement, nutrient cycling, and organic matter decomposition and retention.
土壤生物和酶活性在改善土壤结构、养分循环、有机质分解和保持中起重要作用。
Straw mulched could improve soil granular structure, and increase the content of water-stable aggregates, so the ability of permeability, fertilizer and water conservation got improved.
秸秆覆盖还田促进土壤团粒结构形成，提高了土壤水稳性团聚体含量，从而改善了土壤通透性和保水保肥性。
The soil physical structure and the soil chemical properties in two restoring measurement are obviously improved.
不同恢复措施的土壤物理结构、土壤化学性质均获得明显的改善。
In this paper, the effects of elevated CO2 on soil microbial community structure, soil microflora, soil respiration, soil microbial biomass, and soil enzyme activities were summarized.
本文从土壤微生物群落结构、微生物区系、土壤呼吸、微生物生物量以及土壤酶活性方面对大气高浓度CO2的响应进行了综述。
It improved the soil granular structure in a short time, since high molecular compounds naturally degraded into organic matters.
同时，高分子经过自然降解转化为有机物质，可在较短时间内改善土壤结构。
The critical state model is an important part of unsaturated soil structure theory.
临界状态模型是非饱和土结构理论中的一个重要的内容。
The aim of this paper is to analyze composite soil nailing support with limited equilibrium method and to investigate the influence of retaining parameters on the stability of soil nailing structure.
本文研究目的在于采用极限平衡分析的方法对复合型土钉支护的稳定性进行理论分析，研究土钉支护参数对复合型土钉支护边坡稳定性的影响。
In some countries, especially France, gypsum is used agriculturally as a structure-improving agent for the soil.
在某些国家中，尤其是法国，石膏在农业上用作为土壤结构改良剂。
The main goal of this dissertation is toremove these presuppositions and to consider the influence of soil-structure dynamicinteraction (SSI) on structural control.
本文的研究目的就是为了移除这些假设，考虑土-结构动力相互作用对结构控制的影响。
Soil compaction often makes soil structure destroying and soil degrading.
土壤的压实往往造成土壤结构的破坏和土壤的退化。
Soil productivity is strongly linked to SOC because SOC plays important roles in improving soil structure, soil water holding, infiltrating and capacities, and the nutrients supply to plants.
SOC在改善土壤结构、保持水分、防止土壤侵蚀和退化、提供植物养分特别是氮素等方面具有重要作用。
Soil productivity is strongly linked to SOC because SOC plays important roles in improving soil structure, soil water holding, infiltrating and capacities, and the nutrients supply to plants.
SOC在改善土壤结构、保持水分、防止土壤侵蚀和退化、提供植物养分特别是氮素等方面具有重要作用。
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