1)dried soil layer土壤干层
1.Distribution characteristic of dried soil layer in Wangdonggou Watershed in gully region of the Loess Plateau;黄土高原沟壑区小流域土壤干层的分布特征
2.The analysis to dried soil layer of artificial Robinnia pseudoscacia forestry land in the Yanan Experimental Area;延安试区人工刺槐林地的土壤干层分析
3.Studying the state,reason and controlling measures of dried soil layer has much significance to regional plant capability,land productivity and rectification of low-functional forest and grassland and construction of sustainable plant.土壤干层是黄土高原普遍存在的特殊土壤水文现象,研究其现状、成因、防治、调控措施等对科学认识区域植被承载力、土地生产力以及低效林草改造和可持续植被建设等有重要理论与生产指导意义,而合理通用评判指标与分级标准是开展土壤干层研究的基础。
英文短句/例句
1.Study on the Soil Moisture Content and Soil Dried Layer under Artificial Forest in Xi an Area;西安地区人工林土壤含水量与土壤干层研究
2.Study on Soil Moisture and Soil Dry Layer in Apple Land and Farmland in Xianyang of Shaanxi Province陕西咸阳苹果林地和农田土壤含水量及土壤干层研究
3.Moisture Distribution Characteristics and the Time-space Dynamics of the Soil Dry Layer in Alfalfa Farmlands in Arid Regions of Southern Ningxia宁南旱区紫花苜蓿土壤干层水分特征及时空动态
4.A soil of semiarid and arid regions that is rich in calcium carbonate and lime.钙层土半干燥和干燥地区含丰富碳酸钙和氧化钙的土壤
5.Salts bloom out upon the surface of the earth in dry weather following rain.雨水之后天气干燥时土壤表层会出现盐霜。
6.The CO_2 Flux of Soils and the CO_2 Concentration of Surface Layer at Arid Region in Temperate Zone;温带干旱地区近地层CO_2浓度和土壤CO_2通量
7.Influence of dry sand bed thickness on soil moisture evaporation in mobile dune;流动沙丘干沙层厚度对土壤水分蒸发的影响
8.Soil below the ground surface.下层土地面下的土壤
9.Characteristics of Deep Soil Desiccation on Rainfed Grain Croplands in Different Rainfall Areas of the Loess Plateau of China黄土高原不同类型旱区旱作粮田深层土壤干燥化特征
10.Comparative Experiment of Finger Flow of Homogeneous Soil and Layered Soil均质土壤及层状土壤的指流对比实验
11.Model of risk assessment for agricultural drought based on two-layer soil computing model基于两层土壤计算模式的农业干旱风险评估模型
12.This topsoil tends to wash away.表层土壤要冲掉了。
13.a layer in a soil profile.土壤的剖面中的一层。
14.In ABC soil, the uppermost zone of soil, containing humus; topsoil.淋溶层在ABC层土壤中最上面的一层，含有腐殖土；顶层土壤
15.The soil has a substratum of rock.这土壤下面有层石头。[这土壤有下层石头。
16.Study on Forecast Model of Lower Layers by the Soil Moisture of Surface Layer;表层土壤水分预测下层土壤水分的模型研究
17.The soil contracts upon drying.土壤会由于变干而紧缩。
18.The rain sank into the dry soil.雨水渗入干涸的土壤。
相关短句/例句
dry soil layer土壤干层
1.A study on water restoration of dry soil layers in the semi-arid area of Loess Plateau;黄土高原半干旱区土壤干层水分恢复研究
2.In order to study dry soil layer forming and soil nitrogen consumption characteristic,promote fertilizing and grass-crop rotation in alfalfa grassland,the paper investigated the dry soil layer and soil nitrogen consumption in the grasslands with alfalfa growing for three years,four years,six years,12 years,14 years,18 years and 26 years.为掌握苜蓿连续种植多年土壤干层的形成规律及氮素的消耗规律,促进黄土高原地区苜蓿草地合理施肥及草田轮作,论文系统研究了3年、4年、6年、12年、14年、18年及26年生紫花苜蓿草地土壤干层及氮素的消耗。
3.Soil water variations at the 0-1000 cm layers in alfalfa grassland with different years of growth(3a,4a,6a,8a,12a,14a,18a,26a),dry soil layer formation and soil moisture restoration were investigated in the semi-humid region of the Loess Plateau.结果表明,荒地与苜蓿草地土壤干层出现的区域及发生的程度不同:荒地在80~100cm土层深度,出现轻度干层;生长年限低于8a(含8a)的苜蓿草地,在250~350cm土层出现轻度干层,生长年限超过8a,出现中度干层,干层范围延至500cm土层以下。
3)dried layer of soil土壤干层
1.Effect of dried layer of soil ecological environmental reconstruction;黄土高原土壤干层对生态环境建设的影响
2.Research of dried layer of soil below artificial forest near Xi′an;西安蓝田人工林地土壤干层研究
3.The development of dried layer of soil is a common phenomenon in Loess Plateau.通过对西安南郊丰水年秋季土壤含水量的测定,研究了地下0~6m之间土壤含水量的变化与土壤干层的恢复问题。
4)soil dry layer土壤干层
1.Through field investigation and laboratory tests,the water content changes of soil dry layer of 0-6m under the artificial forest in Lintong of Xi an were studied in this research.通过野外调查和室内测定,本文研究了西安临潼人工林下0-6m土壤含水量和土壤干层的变化。
5)soil drying layer土壤干层
6)the soil dry layer土壤干化层
延伸阅读
土壤发生层简称土层，为土壤剖面上表现出的水平层状构造。反映了土壤形成过程中物质的迁移、转化和累积的特点。其野外鉴定特征主要包括土壤颜色、质地、结构、松紧度和新生体等。一定的土壤发生层与一定的成土过程相联系。腐殖质化过程广泛分布于自然界，故各种土壤剖面上部大都具有暗色的腐殖质层。淋溶和淀积过程对土壤剖面的分化具有重要意义，在寒带或寒温带针叶林植被下强有机酸参与的淋溶过程（灰化过程）形成强酸性的灰白色土层——灰化层；热带、亚热带生物—气候条件下，伴随强烈风化作用的土壤淋溶过程，形成富含铁铝氧化物的土层；干旱与半干旱环境中与可溶盐分淋失和积聚的不同强度相联系的各种成土过程，形成盐土层、钙积层和石膏层等。此外，与土壤粘化过程相联系的土壤发生层有粘化层；与土壤氧化还原过程相联系的有潜育层；与土壤碱化过程相联系的有碱化层等。一种类型的土壤往往存在几个成土过程，不同的土壤则具有不同的成土过程组合，因此也就有不同土壤发生层的组合。如暖温带阔叶林下的棕壤具有两个成土过程，即腐殖质化过程和粘化过程，其剖面主要由腐殖质层、粘化层和母质层构成；温带草甸草原植被下的黑钙土，具有明显的腐殖质累积过程和钙化过程，其剖面主要由腐殖质层、钙积层和母质层构成。土壤发生层及其组合是土壤分类的主要依据，也是决定土壤肥力高低的重要因素。
