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Quantitative and qualitative soil quality assessments of tea enterprises in Northern Vietnam
Soil quality indicators tea cultivation
2009/3/3
Long-term cultivation of tea (Camellia sinensis (L) O. Kuntze) in the northern mountainous zone of Vietnam has resulted in soil quality degradation that could affect economic development in the re...
Relationship between the looseness of soil and the electric conductivity
looseness L of soil electric conductivity subsoil chisel Veris 3100
2014/2/26
The present article reports on an experiment as part of the research in the frame of which I search after the relationship between the looseness L of soil characterising the operating quality of the c...
大豆凝集素结构及其活性测定方法的研究进展
大豆凝集素 结构 活性测定方法
2015/9/14
大豆凝集素是大豆中重要的蛋白质之一，同时也是大豆中主要的抗营养因子之一。自被发现半个世纪以来，大豆凝集素在糖生物化学、血型鉴定、生物医药等领域有着广泛的应用。综述大豆凝集素结构及其活性测定方法，为研究者进一步了解大豆凝集素不同活性测定方法之间的差异，选择合适的大豆凝集素活性测定方法提供依据。
珠海市农业土壤质量调查及评价
珠海市 农业土壤质量调查 评价
2009/2/24
该项目对珠海市农业用地土壤进行了较全面的调查取样，分析测试了土
壤pH、有机质、全氮、全磷、全钾、碱解氮、速效磷、速效钾、机械组
成、CEC、盐分、微量元素及重金属元素。描述了各种农业土壤类型特
征、土壤的物理、化学属性，评价了农业土壤的地力等级和环境质量。
通过本次开展珠海市农...
珠海市农业土壤质量调查及评价
珠海市 农业土壤质量 调查 评价
2009/2/24
本项目对湛江市主要典型区域的土壤、农作物和灌溉水进行了较全面的
调查取样，分析研究了土壤、农作物和灌溉水的重金属、农药残留、多
环芳烃和邻苯二甲酸酯类有机污染物的含量状况，揭示了湛江市主要典
型地区的土壤污染的现状、农产品品质状况和灌溉水质状况。除重金
属、农药残留、硝酸盐和亚硝...
一种土壤粗糙度的测量方法
土壤粗糙度 测量方法
2009/2/24
本发明公开了一种土壤粗糙度的测量方法，包括以下步骤： 1 ）在目标土地内随即取样，随机固定两点，两点间的距离为 L ； 2 ）在固定两点所在的直线上，用无弹性软绳紧贴土壤的粗糙面放平，获取两点间软绳拉直的距离 L ‵ ； 3 ）依此类推测定每个样方； 4 ）根据测得的数据得出每个样方的土壤粗糙度，再得出目标土地的土壤粗糙度。本发明测量土壤粗糙度简单方便实用，能满足农业生产换土壤侵蚀管理的需要。
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Investigations on Soil Erodibility and Some Properties of the Soils Under Different Land use Types in Söğütlüdere Creek Watershed Near Trabzon
Soil Erodibility Properties of the Soils Different Land Sö ğ ütlüdere Creek Watershed
2009/1/22
In this study, effects of different land use types on some soil properties in the Trabzon-Sögütlüdere watershed were studied. The study area, is located in the East Black Sea Region, 30 kilometer...
北京地区典型土壤剖面分子标志物分布特征
土壤剖面'藿烷'甾烷'芳香甾烷'北京
2009/1/22
对北京地区具代表性的环境功能区土壤剖面中的藿烷、甾烷、芳香甾烷类分子标志物含量及组成变化进行了分析。在10个土壤剖面中都检测到了不同浓度的藿烷与甾烷系列化合物，其中水稻田（B9）和城区绿地（B7）这些化合物的含量最高，在农田（B6、B9）和城区绿地（B7）表层土壤中还检测到了少量的三芳甾烷。土壤剖面中藿烷和甾烷含量随深度的增大而降低，在表层30 cm深度范围内的变化较大，30 cm以下其含量波动甚...
农田生态系统在陆地生态系统碳循环中扮演着重要的角色。增加农田土壤有机碳的固定不仅可减少大气CO2含量，而且对保障国家粮食安全具有举足轻重的作用。近年来评估土壤固碳潜力已成为国际科学界研究的热点和难点。但由于不同研究者对“潜力”范畴的界定不同，全球或区域尺度农田土壤固碳潜力的估算还存在很大的不确定性。所谓固碳潜力，即土壤碳的饱和水平或土壤所容纳碳的最大能力。这一能力受区域气候、土壤类型、农业管理措施...
Land Suitability Classification of Tokat-Kazova Agricultural Farm Using Two Different Land Evaluation Methods
Land Evaluation Simple Limitation Method Ş enol Land Evaluation Method Land Utilization Type Land Unit
2009/1/14
The suitability was determined of Kazova Agricultural Farm soils for land utilization types, both those in use and those with a potential for use. Simple Limitation and Şenol Land Evaluation Meth...
Using the Parcel Transposition Ratio（PYO）in the Evaluation of land Consolidation Projects
Land consolidation parcel transposition ratio evaluation
2009/1/14
In this study, land consolidation projects were evaluated by a different way than usual. According to the results of two different models applied to the Tokat-Erbaa-Yukarı Çandır Vill...
Soil Erosion Risk Assessment With ICONA Model：Case Study：Beypazarı Area
ICONA erosion model remote sensing geographic information system
2009/1/13
In this research, the applicability of geographic information system (GIS) and remote sensing (RS) techniques was tested to assess soil erosion risk with the ICONA erosion model. This study was carri...
Geographic Information System and Remote Sensing Based Land Evaluation of Beypazarı Area Soils by ILSEN Model
Land mapping units Land qualities Land utilization type Land evaluation
2009/1/13
Land evaluation is of great importance in guiding decisions on land uses in terms of their potential and conserving natural resources for future generations. The main objective of this study was to d...
基于GIS的明光市耕地地力评价
耕地地力 耕地类型区 模糊评价 GIS
2009/1/7
在明光市测土配方施肥和第二次土壤普查资料的基础上，运用GIS建立明光市耕地资源数据库。针对明光市三大耕地类型区（平原潮土耕地类型区、稻田耕地类型区、山地丘陵耕地类型区）特点，分别建立其耕地地力评价指标体系。在GIS 的支持下,利用系统聚类方法、层次分析法、模糊评价等数学方法和数学模型成功地实现了耕地地力自动化、定量化评价。评价获取了明光市各耕地地力等级面积及其分布信息,经实地调查分析符合当地实际，...