绿洲农田土壤风蚀及其控制机理。
保护性耕作减少农田土壤风蚀速率。
Conservational tillage decreased wind erosion rate on farmland.
农田土壤硝酸盐积累与淋失研究进展。
Advances in studies on accumulation and leaching of nitrate in farming soil.
保护性耕作能够有效减少农田土壤风蚀。
Conservation tillage could reduce soil wind erosion effectively on farmland.
研究了上海市郊部分旱作农田土壤盐分特征。
Salinity content and characteristic of farmland soil in Shanghai suburb was studied.
农田土壤风蚀过程。
另外，保护性耕作地能够减少农田土壤养分损失。
In addition, conservation tillage could reduce the nutrient loss of the soil.
土壤因子对农田土壤动物的影响大于土壤微生物。
The influence of soil factors on soil fauna was greater than that of soil microorganism.
通用性好，适用于不同地区的农田土壤推荐施肥服务。
It is applicable in different region for the service of soil recommendation fertilization of farmland.
观赏草坪土壤CO_2释放总量高于农田土壤和牧草土壤。
The sum soil CO_2 efflux of grassland were higher than farmland and grazing.
而林木的存在对农田土壤养分的水平分布产生了明显的影响。
The presence of forest trees in agroforest systems influences the level distribution of soil nutrients of …
本发明涉及农田土壤保水剂，具体是一种土壤保水剂及其制备方法。
The invention relates to a farmland soil water-holding agent, in particular to a soil water-holding agent and a preparation method thereof.
设计了可以定位、快速、同步测量农田土壤含水率和坚实度的采集仪。
A field information acquisition instrument for positioning, rapid and simultaneous measurement of soil moisture content and compaction was designed.
本文研究了不同作物留茬和建设农田防护林对遏制农田土壤风蚀的效应。
The effects of the stubble of different crops and farmland windbreak on controlling farmland soil erosion are studied.
随着膜下滴灌应用年限增加，农田土壤盐碱变化及对作物影响引起关注。
With the increase in the drip irrigation application years under-mulch drip irrigation, the soil salinization and its influence on the crops call people's attention.
用单因素指数模型模拟洱海流域农田土壤氮素矿化拟合度很高，效果较好。
By using one-pool model to simulate the mineralized process in soils in Erhai Lake basin, the effect was relatively good with a high goodness-of-fit.
同时提出防治污染的措施及办法以及农田土壤有害元素污染模型和植物修复模型。
The measures and the methods of preventing and curing pollution are posed. The black box model that the soil of farm fields is polluted by harmful elements is also posed in the paper.
以西安市不同灌溉类型的农田土壤为对象，研究重金属污染现状及其与灌溉类型的关系。
The pollution levels of heavy metals and the relations between they and irrigation types was studied in top soils of different irrigation types in Xi an City.
国内研究表明，目前耕地的地力不稳，土壤有机碳密度较低，农田土壤固碳的潜力较大。
All research results showed that the cultivated land fertility was unstable; density soil organic carbon was lower.
采用调查研究与化学分析相结合的方法，对设施农田土壤生态环境恶化的原因进行了初步研究。
Through field investigation and chemical analysis, the reasons why soil ecological environment deteriorated on facility farmland were studied.
而大部分却残留在农田土壤中或流入地表水体中，引起水体富营养化，形成农业面源污染问题。
However, most of them stayed in the soil or flowed into waters and led to the eutrophication, which could bring about Agricultural Non-Point Source Pollution (ANPSP).
结果表明：该农户生态系统能量和物质的投入均以有机为主，农田土壤库中氮、磷、钾均有盈余。
Results showed that energy and materials input were mainly organic. There were surplus of nitrogen, phosphorus and potassium in the farmland soil pool.
结果表明：降雨导致湿地土壤CO2释放速率显著增加（P＜0.01），而农田土壤无显著差异。
Results showed that precipitation could stimulate wetland soil CO2 emission rate(P<0.01), but this phenomenon could not be found in farmland soil.
通过大田试验研究了黄土地区种植作物对旱作农田土壤理化性状、磷酸酶活性以及土壤n2o排放的影响。
Field experiments were carried out on Loess Plateau to investigate the effects of cropping on the physical and chemical properties, phosphatase activity, and N2O emission of upland soils.
本文围绕土壤固碳的基本问题，总结了农田土壤固碳潜力、土壤有机碳固定机制及其影响因素的国内外研究进展。
According to the previous researches over the world, the scientific progress was concluded, including the potential capacity and mechanism of soil carbon sequestration, influence factors as well.
为了有效防治农田土壤风蚀，对作物进行高留茬处理和通过各种措施增加地表粗糙度，可以达到最大的防风蚀作用。
In order to control the wind erosion, the measure to enlarge the stubble height and topsoil roughness is most effective.
精耕细作、疏松表层、保持水土、充分接纳雨水就地入渗增大土壤水库贮水，可有效地改善农田土壤和作物水分条件。
Practising intensive farming and loosening upper soil layer could hold rainfall water and make it penetrate into soil effectively, which could improve soil quality and crop moisture condition.
这些农田土壤的种植、翻耕、施肥、灌溉等管理措施不仅改变着农田生态系统中的化学元素循环，且给全球气候变化带来影响。
The management, such as plough, fertilization and irrigation etc. have not only changed the nutrient cycling in the farmland ecosystem system, but also brought influences to global climate.
为有效控制因化学农药“百菌清”大量应用而导致的农田土壤和农产品污染问题，本研究开展了该化学农药的微生物降解研究。
In order to apply the biodegradation preparation to control the farmland pesticide pollution, the author isolated a chlorothalonil-degrading bacterial strain TP-D1 from the heavily TPN-polluted soil.
为有效控制因化学农药“百菌清”大量应用而导致的农田土壤和农产品污染问题，本研究开展了该化学农药的微生物降解研究。
In order to apply the biodegradation preparation to control the farmland pesticide pollution, the author isolated a chlorothalonil-degrading bacterial strain TP-D1 from the heavily TPN-polluted soil.
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