Influence of different cultivating fertility measure on humus of several kind of soil types in Guizhou east;
通过5年的定位试验,结果表明,长期有机无机肥配施或粮肥轮作、间种配施化肥均能提高黄壤土类黄泥土、红壤土类黄红泥土和潮土类潮泥土的有机质、腐殖质和活性腐殖质含量,其中胡敏酸、富里酸也相应增加,但以粮肥轮作、间种配施化肥的培肥效果最好。
The buffering characters of loessial soil to applied As of which is different concentrations,and their dynamic variety regulations with equilibrium time and pollutant concentrations was studies.
研究了黄土类土对不同浓度外源As的缓冲性及其随平衡时间、污染物浓度的动态变化规律;阐明了黄土类土对As的缓冲速率与平衡时间的关系;确定了黄土类土对As的缓冲动力学方程,为更准确的评价黄土类土对As的污染-净化能力提供依据。
At the basis of comprehensive studies about mechanism and model of environment capacity in soil,the soil column leaching experiments are conducted to different layers of loessial soil including cultivated horizon,plow pan,argillic horizon and calcic horizon.
本文在阐述利用土柱淋滤试验研究土壤环境容量的机理和模型的基础上,对黄土类土的耕层、犁底层、粘化层和钙积层进行土柱淋滤试验,对试验结果进行拟合,通过建立方程求解,从而确定土壤环境容量。
With increasing of human being's activities on farming and watering, it has great theoretical and practical significance on how to utilizing purification function of loessial soil to protect groundwater from polluting, which is the basis of building item of this paper.
(2)分析了由于农事和水事活动所发生的土层入渗水中的污染元素，确定了毒性强、数量大、易迁移的铬、砷作为主要研究对象，研究其在黄土类土中的行为作用有代表性意义。
Effect of soil type and organic material on NH_4~+-N recovery rate;
土壤类型和添加有机物料对铵态氮回收的影响
Effects of climate and soil type on growth and wood quality of slash pine plantations;
气候和土壤类型对湿地松人工林生长和材质的影响
Effects of soil type and land use pattern on microbial biomass carbon;
不同土壤类型和农业用地方式对土壤微生物量碳的影响
A study on land types and proper land uses in karst area——an illustration by Banchuang village,Changshun;
喀斯特地区土地类型及其合理利用研究——以长顺县板床村为例
Bases on the past studies of crop productive potential in the area of the Loess Plateau, mathematical models of grain productive potential for the different land type of the soil and water erosion area were established and some parameters in the models were recalculated and determined too.
在以往对黄土高原地区作物生产潜力研究的基础上 ,建立了水土流失环境下不同土地类型粮食生产潜力的数学模型 ,并对模型的参数进行了设定和推算。
Through the analysis of contour lines and land-use map and establishing digital elevation model and land type database, this paper presents an evaluating method of evaluating the backscattering coefficient on radio waves unitary under the conditions of a complicated large scale area.
通过对等高线与土地利用图的处理,建立了数字高程模型和土地类型数据库,提出了一种在大范围复杂地形条件下雷达地面归一化后向散射系数的估算方法。
" Classification and codes for Chinese Soil--Classification and codes for order,suborder,group and subgroup"
GB/T17296-1998中国土壤分类与代码土纲、亚纲、土类和亚类分类与代码
Influence of bentonite types on the properties of plastic concrete
膨润土类型对塑性混凝土性能的影响
Then the Baijiang soil can he classified into alfisol class, cold alfisol subclass and albic cold luvisols class.
据此将白浆土划归淋溶土纲，冷性淋溶亚纲，漂白冷性淋溶土土类。
Residential (Group B) [R(B)] [land use zone]
住宅（乙类）〔土地用途地带〕
and beans also improve the quality of the soil.
而豆类还可以改善土质。
Residential (Group D) [R(D)] [land use zone]
住宅（丁类）〔土地用途地带〕
Residential (Group C) [R(C)] [land use zone]
住宅（丙类）〔土地用途地带〕
Industrial (Group C) [I(C)] [land use zone]
工业（丙类）〔土地用途地带〕
Industrial (Group D) [I(D)] [land use zone]
工业（丁类）〔土地用途地带〕
Industrial (Group B) [I(B)] [land use zone]
工业（乙类）〔土地用途地带〕
Industrial (Group A) [I(A)] [land use zone]
工业（甲类）〔土地用途地带〕
land piling [public works category]
土地打桩〔公共工程类别〕
Containing, made of, or resembling clay; clayey.
粘土质的含有粘土的，由粘土制成的，或类似于粘土的；似粘土的
The factors causing soil salinization include natural factors such as climate, hydrological and geological conditions, and human-made factors, such as irrigation patterns and cultivating system.
盐渍化土壤类型主要为典型盐土、沼泽盐土、碱化盐土和干旱盐土。
The Influence of Soil Algae on Index of Soil Quality;
土壤藻类对土壤质量指标影响的研究
Method for Land Use/Land Cover Classification in the Western Sichuan Plateau
川西高原土地利用/土地覆盖分类方法
Effects of different land-use on characteristics of soil and water conservation
不同土地利用类型水土保持特征研究
Soil moisture characteristics under different land types in hilly and gully areas on Loess Plateau
黄土丘陵沟壑区不同土地类型的土壤水分特性