然而，耕地被认为是对表层土壤造成严重损害的罪魁祸首，因为它清除了那些保护土壤不被吹走或冲走的植物。
However, plowing is blamed for causing severe damage to top soil by removing the plants that protect soil from being blown or washed away.
在常规耕作条件下，春季作物对土壤水份含量的响应要比免耕地大得多。
Under conventional till, crop response to spring soil water content was considerably greater than under zero till.
如果采用传统技术如轮作和堆肥为土壤补充氮和其他物质，就需要耕地也增长三倍了。
Using traditional techniques such as crop rotation, compost and manure to supply the soil with nitrogen and other minerals would have required a tripling of the area under cultivation.
总之，在免耕地条件下，春季作物对土壤含氮量的反应大约是常规耕作的2倍。
In summary, under zero till crop response to nitrogen levels in the spring was approximately twice as large compared to conventional till.
为了给测土配方施肥提供基础数据，对黔西县项目区的旱耕地的土壤质量进行了初步评价。
The soil quality of the dry arable lands in Qianxi county was evaluated to provide the basic data for the formulation application.
本文介绍了铁岭市西部风沙区生态环境现状，包括村庄、人口、耕地、农业、土壤结构、粮食产量等状况。
The paper introduces ecological environment situation of western storm sand area in Tieling city , including village , population , cultivated land , agriculture , soil structure and grain yield .
其中耕地土壤盐碱化的危害，是造成新疆农业低产的主要原因之一。
The soil salinization of cultivated land is one of the main reason that caused the low-yielding agriculture in Xinjiang.
文章应用径向基（RBF）人工神经网络，结合多源遥感影像对北方某地区耕地土壤盐渍化状况进行调查研究，取得了满意的效果。
Using radial base function (RBF) artificial neural network and multi-source remote sensing imagery, the status of soil salinization in an area of north china is studied with satisfactory results.
为了阻止耕地地力的持续下降和生态环境进一步恶化，土壤管理方式必须由传统的耕作方式转向保护性耕作。
To avert our arable land from further degradation, soil management must be shifted from degrading tillage to conservation practices.
不同耕地类型由于水热条件的不同，造成土壤性质明显差异。
Because of the different hydrothermal conditions, it resulted in significant differences in soil properties.
现代沉积旋回的孢粉平均浓度，远低于草地和坡耕地表土，这表明草地和坡耕地土壤不是沉积泥沙的主要来源。
Average pollen concentration in the modern deposits is much less than those in surface soils on both the grassland and the cultivated land.
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。
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.
本文论述了自1980年调查以来冀东滨海稻区耕地土壤养分的变化状况，分析了土壤养分含量变化的原因，提出了改良途径。
In this paper, we discuss soil nutrients change status of paddy rice land in Jidong coastal area since 1980, to analyse the reasons and put forward a modified way.
施工过程对农田耕地土壤、尤其是对土壤耕作层的影响最为严重。
Project construction has rather great impact on farmland soil, especially most serious on soil plough horizon.
通过田间试验研究稻草和玉米秸秆覆盖对坡耕地土壤侵蚀、土壤水分、土壤温度、土壤小动物种类和数量、杂草生长及马铃薯产量的影响。
Effects of straw mulch on soil erosion and water, soil temperature, sorts and multitudes of small animals, weeds growth and potato productivity were studied through field experiments.
受土壤温度等物理性状的影响，免耕地作物生物量及产量明显不如翻耕地。
Effected by soil temperature and the other physical properties, the biomass and yield are less under no-tillage than that under plow tillage.
耕地扩张很快，而土壤盐渍化面积仍然居高不下。
However farmland extend quickly, and the area of salinity still keep been high degree.
农田土壤质量评价是耕地地力升降实行奖惩使用的前提。
Farm soil quality appraise is the prerequisite to realize the system of rewards and punisher - ents for using farm.
世界上40%以上的耕地因为铝离子毒性和土壤酸性的综合作用而限制了农作物的生长。
The combination of Aluminium toxicity with soil acidity is a major crop growth limiting factor in over 40% of the arable land in the world.
利用人工模拟降雨装置对影响坡耕地土壤入渗的诸因素进行了研究。
Using the simulated rainfall methods, the affecting factors of soil infiltration are studied.
铝的有害性严重制约了约占世界可耕地面积40%的酸性土壤中的作物生产。
Aluminum toxicity limits crop prodution on acidic land, which accounts for 40% arable land in the world.
然后在梯田槽基内填充100厘米厚的人造土壤，这就是人造耕地。
Fill 100 cm thick artificial soil into the trough base of the terraced fields, thus the artificial cultivated land comes into being.
但迄今环丙氨嗪和三聚氰胺在我国主要类型耕地土壤中的环境行为数据仍为空白。
But till now, the environmental behavior data of cyromazine and melamine in the main types of soil in China was still in blank.
土壤养分的平衡分析结果表明，成都平原耕地土壤管理宜采取“稳氮、控磷、增钾”的施肥方法和严格控制各种点源和非点源污染物进入土壤。
The balance analysis results of soil nutrient indicated that the fertilization methods of cropland management in Chengdu Plain were firming nitrogen, controlling phosphorus and increasing potassium.
坡耕地作为重要的侵蚀产沙区，揭示其土壤侵蚀规律和泥沙运移方式，对建立土壤侵蚀预报模型、加强土地管理防止土壤退化具有十分重要的意义。
It is important to reveal the law of soil erosion and develop soil erosion forecast model, which has a bearing on preventing the loess of water and soil.
对定西黄绵土多年苜蓿地与传统耕地的表层土壤理化性质进行了比较研究。
The top soil properties of Huangmian soil under lucerne grown for many years were compared with those of soil under conventional tillage in Dingxi.
水土流失和化肥的施用使得坡耕地土壤发生了酸化，随土层的加深而酸化加重。
Soil erosion and fertilizer application made soil acidified in slope field, soil acidification increased significantly with depth.
水土流失和化肥的施用使得坡耕地土壤发生了酸化，随土层的加深而酸化加重。
Soil erosion and fertilizer application made soil acidified in slope field, soil acidification increased significantly with depth.
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