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。
At the initial stages of restoration, improvement on the soil biological properties by lichen and moss were represented mainly on surface layer soil.
在恢复初期，地衣和苔藓对土壤生物学性质的改善主要体现在土壤表层。
An analysis on the effect of cultivated grassland on soil respiration rate was conducted for the abandoned land and the transferred farmland in the Ordos Sandy land Improvement Experimental Station.
在鄂尔多斯沙地改良试验站的撂荒地和退耕地，测定和分析了多年生人工草地对土壤呼吸速率的影响。
This could be confirmed by the organic matter and nitrogen circulation and the improvement of soil fertility.
这可以从有机物质、氮素的循环和土壤肥力因素的改善得到证明。
With improvement of aeration, infiltration and drainage percent, the availability of moisture soil increases corresponsively.
随着土壤的通气性和渗透、排水率的改善，土壤有效水分增加。
A number of saline soil improvement materials were tested in meadow saline soils of the Hexi Corridor in terms of soil physiochemical properties, corn yield and economic effects.
选取河西走廊的草甸盐土区域，进行了盐碱土改良材料对草甸盐土理化性质和玉米产量及经济效益的影响研究。
Artifical improvement of soil fertility in a regraded forest ecosystem by using municipal sewage sludge.
城市污泥对退化森林生态系统土壤的人工熟化研究。
The improvement of soil oxidation-reduction status of wetland rice-duck complex ecosystem was one of the reasons which resulted in decrease of methane emission.
湿地稻-鸭复合生态系统土壤氧化还原状况的改善是降低甲烷排放的原因之一。
With the improvement of the content of soil moisture, the mineral nutrition uptake amount improves notably.
随着土壤水分含量的提高，植株对矿质元素的吸收量显著提高。
But the big function of soil and water conservation and the improvement of soil texture and seedling nursing have not been studied systematically.
但对它强大的水土保育功能(抑制水土流失、改善土壤质地)，以及与水土保育相关联的幼苗保育功能等方面研究较少。
Preloading is a popular soil improvement technique for soft soils sometimes named pre-compression.
预压，有时也称预压缩，是一种常用的软土改善技术。
The law of soil infiltration, the current quality of field irrigation and its improvement measures will show results from THD soil infiltration and field irrigation tests in the farmer's field.
本文通过土壤入渗及灌水技术大田试验研究，指出了西营河灌区土壤入渗的规律、田间灌水质量状况及其改进途径。
In the total rate, the contribution of variety change, cultural improvement, the application of fertilizer, and soil productivity was 54%, 36%, 15%, and 27% respectively.
其中，品种更换、栽培技术改进、施肥水平与地力变化和三因子综合作用对产量增长的贡献分别占54％、36％、15％和27％。
It is concluded that the mixed stand can be able to be self-rich in soil fertility, which benefit the maintenance and improvement of site fertility under Chinese fir plantation.
表明杉木拟赤杨混交林具有良好的培肥土壤功能，对杉木人工林的地力维持和提高有重要意义。
Therefore, more efforts should be laid on the improvement of soil water environment while following the principle of "selecting suitable tree species for sites" in planting.
因此，在以适地适树原则适应土壤水分环境的同时，应加强土壤水分环境的改善。
It shows that the yield improvement is mainly due to the soil nutrient amelioration (especially nitrogen nutrient) and the interaction of mutual supplement of N and P nutrient.
指出杨树刺槐混交林生产力提高主要是因为林地土壤养分（特别是N素养分）的极大改善及树种间N、P养分的互补。
Teasdale, J. R. 2007. Potential long-term benefits of no-tillage and organic cropping systems for grain production and soil improvement. Agronomy Journal 99, 1297–1305.
免耕与有机作物系统对谷类生产与土壤改善潜在的长期益处，农艺学杂志99，1297-1305。
As important forage crops, legumes of the genus Chamaecrista play an important role on soil improvement, water and soil conservation, etc.
决明属牧草既是重要的饲料作物，又在土壤改良、水土保持等多方面发挥着积极作用。
The improvement of soil infiltration ability is the key measurement to control soil erosion.
提高土壤的入渗能力为防治土壤侵蚀的关键措施。
The cement soil improvement principle is the cement distributes in the soil constitutes the firm core, forms the hydrated cement in all crevices the skeleton, in order to the restraint soil particles.
水泥土改良的原理是水泥分布在土中构成坚固的核心，在所有的空隙中形成水化水泥的骨架，借以约束土粒。
The application of activated carbon form sludge is very wide, such as wastewater treatment, emission control, soil improvement, soil for gardening, dehydration agent and sweetening agent.
污泥活性炭的应用面很广，可用于处理废水，治理废气，土壤改良，作园艺用土壤、脱水助剂和脱臭剂等。
Increasing groundwater portion of ditch drainage water is an important way to speed up desalination and salted soil improvement in irrigation areas.
而提高沟排水中地下水排泄量的比例是加快灌区脱盐和盐渍土改良的重要途径。
The application of the research in roadbed filler improvement of Songnen plain soda-saline soil is discussed initiatively.
初步探讨了该研究在松嫩平原苏打型盐渍土的公路路基工程改良中的应用。
Erect annual or biennial plant grown extensively especially for hay and soil improvement.
直立的一年生或两年生植物，广泛栽培，尤其用于干草和土壤改良。
Genetic improvement of plant nutritional characters provides a new approach towards increasing the crop yields in unfavorable soil environments.
植物营养性状的遗传学改良是提高不良土壤营养环境中作物产量的一条新途径。
Cement-soil mixing method, in which cement is mixed thoroughly with surrounding soft soil at site, has been widely used in many fields for improvement of soft ground.
水泥土搅拌法是就地将水泥和软土搅拌在一起的加固软土地基的一种方法，近年来得到广泛的应用。
The results indicated that applying organic fertilizer had improvement effect on the physical and chemical characters of the soil, and it could enhance rice yield.
结果表明：施用有机肥对土壤理化性质均有很大的改善，并相应地提高水稻产量。
The feasibility of coal ash used as soil improvement material is studied.
论述了煤灰作为土质改良材料的可行性。
There are some main influence factors, which are the manners of improvement of foundation, soil layer structure, soft soil depth and embankment height.
影响软土路基侧向变形的主要因素有：地基处理型式、土层结构、软土厚度和路堤高度。
There are some main influence factors, which are the manners of improvement of foundation, soil layer structure, soft soil depth and embankment height.
影响软土路基侧向变形的主要因素有：地基处理型式、土层结构、软土厚度和路堤高度。
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