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    题名 作者 年代 出处 被引量
1不同尺度的中国土壤系统分类参比显示文摘本文从不同尺度(区域、类型及单个土体)对我国土壤发生分类与系统分类进行参比。区域参比是以某一土区内主要土壤类型中心概念推知的诊断层和/或诊断特性为根据;类型参比是以某一土壤类型中代表性剖面具有的诊断层和/或诊断特性为根据;单个土体参比则是以某一单个土体具有的诊断层和/诊断特性为根据。根据掌握资料数据的实际情况,选用不同尺度的参比能够更简易地、更可靠地确定发生分类类型在系统分类中的归属,为广泛应用系统分类提供方便。陈志诚 龚子同 张甘霖 赵文君 2004土壤2004,36,6:35
2SOTER-Based Soil Water Erosion Simulation in Hainan Island显示文摘The actual and potential water erosion rates of soils with different land covers in Hainan Island, China,were estimated based on the universal soil loss equation (USLE) and a 1:200 000 Soils and Terrain Digital Database (SOTER) database, from which soil water erosion factors could be extracted. 92.8% of the whole island had a current erosion rate of lower than 500 t km-2 a-1. Soil erosion risk was considered to be high because of its abundant rainfall. Without vegetation cover, the potential soil erosion rate would be extremely high and 90.8% of the island would have a soil erosion rate higher than 2 500 t km-2 a-1. Relative erosion vulnerability of different soil zones, landform types, and lithological regions of the island was compared by introducing a relative erosion hazard parameter α. Cambosols developed from siltstone and mudstone in low hill regions were pinpointed as soils with the highest erosion risk in the island.ZHAO YUGUO, ZHANG GANLIN and GONG ZITONGInstitute of Soil Science, the Chinese Academy of Sciences, Nanjing 210008 (China) 2003Pedosphere2003,13,2:16
3A Distributed Monthly Water Balance Model for Analyzing Impacts of Land Cover Change on Flow Regimes显示文摘The Miyun Reservoir is the most important water source for Beijing Municipality, the capital of China with a population of more than 12 million. In recent decades, the inflow to the reservoir has shown a decreasing trend, which has seriously threatened water use in Beijing. In order to analyze the influents of land use and cover change (LUCC) upon inflow to Miyun Reservoir, terrain and land use information from remote sensing were utilized with a revised evapotranspiration estimation formula; a water loss model under conditions of human impacts was introduced; and a distributed monthly water balance model was established and applied to the Chaobai River Basin controlled by the Miyun Reservoir. The model simulation suggested that not only the impact of land cover change on evapotranspiration, but also the extra water loss caused by human activities, such as the water and soil conservation development projects should be considered. Although these development projects were of great benefit to human and ecological protection, they could reallocate water resources in time and space, and in a sense thereby influence the stream flow.XIA Jun WANG Gang-Sheng YE Ai-Zhong NIU Cun-Wen 2005Pedosphere2005,15,6:10
4四种不同母质发育的红壤水分状况研究显示文摘在相同的地形和气候条件下,研究了我国东南部地区红砂岩、花岗岩、玄武岩和第四纪红粘土发育的4种典型红壤水分状况及其透水性能。结果表明,4种红壤的持水和透水性能存在不同程度差异,其原因是不同成土母质的土壤机械组成、土壤结构的变化造成的。除玄武岩和红砂岩发育红壤的某些层外,其他土壤各层的土壤渗漏量不随时间变化而变化。4种土壤含水量的年动态变化一般可划分为3个时期:土壤湿润期、土壤水分耗竭期和土壤水分恢复期,但不同年份的时间划分也不尽相同。李成亮 何园球 熊又升 杨芳 2004土壤2004,36,3:10
5发生分类高山土与系统分类参比特征显示文摘本文利用最新建立的1:100万中国土壤数据库,研究了我国发生分类高山土与中国土壤系统分类的参比及其在系统分类下的空间分布和数量特征。结果表明,我国发生分类高山土总面积为197.8万km2,分布规律明显;高山土参比后分属于4个系统分类土纲,雏形土、干旱土、新成土、均腐土,它们分别占高山土总面积的50.2%、29.8%、15.1%、4.9%,其中包含了系统分类的11个土类和19个亚类,参比关系复杂,不是简单一对一的关系。分析高山土参比后分属的系统分类不同类型土壤面积比例及其标准偏差,表明土壤参比的单元级别越低,越易于参比和把握,进一步开展土壤系统分类的基层分类研究显得十分必要。发生分类到系统分类的参比关系复杂,参比难度大,原因在于它们的分类体系和划分标准是完全不同的。研究结果对于土壤类型的正确参比具有很好的参考应用价值。于东升 史学正 王洪杰 孙维侠 2005土壤2005,37,6:10
6安徽宣郎广岗丘区土壤发生分类类型在系统分类中的归属显示文摘对宣郎广岗丘地区40个土壤剖面,按中国土壤系统分类体系,进行鉴别、检索、分类定名。阐述土壤发生分类体系的11个亚类级土壤类型在中国土壤系统分类中归为5个土纲,即人为土、富铁土、淋溶土、雏形土和新成土;5个亚纲,即水耕人为土、湿润富铁土、湿润淋溶土、湿润雏形土和正常新成土;15个土类和23个亚类。参比关系复杂,不是简单的一对一的关系。提出按中国土壤系统分类的该区土壤分类系统;并讨论了该区土壤发生分类与系统分类之间具体土壤类型的对应关系。研究结果对土壤类型的正确参比、中国土壤系统分类的应用与发展、具有很好的参考应用价值。顾也萍 胡德春 刘付程 贾宏俊 李昌爱 2006土壤学报2006,43,1:9
7Sustainable Land Management Practices for Rubber Plantations in Mountainous Area of Hainan显示文摘This research was designed to help solve existing sustainable use problems such as soil nutrient loss and soil fertility decline in natural rubber plantations located in the hilly land of the south central mountainous area of Hainan Island, China. Two different land management practices, sustainable and traditional, were adopted in a four-year experiment. Contour terraced fields and deep ditches for green manure were built in a sustainable way with a balanced, need-based application of complex fertilizer. Results of the four-year experiment showed that these sustainable measures compared to traditional measures improved available P and available K; had a 47.8% less soil erosion (an average of 3 663 t km-2 year-1) and a 15.9% lower runoff coefficient of 0.53; increased the dry rubber yield by 42.4%; and improved the economic benefit by 2.4 times. The sustainable land management scheme not only improved land utilisation efficiency, but also helped maintain soil fertility while increasing production in rubber plantations. It thereby offered a reasonable and sustainable use for land resources in the tropical mountainous areas.CHAZheng-Zao LINZhao-Mu LUOWei LIShi-Cong LUOXue-Hua 2005Pedosphere2005,15,3:5
8基于土壤系统分类的土壤类型和界线确定研究——以句容大顶山研究区为例显示文摘我国土壤系统分类的土壤调查技术仍处于研究阶段,借鉴传统的发生分类的土壤调查方法,本文主要研究了基于土壤系统分类的土壤类型与界线确定。土壤类型是通过常规布点法进行主要剖面点位置的设定,并从地形分级和制图精度方面分析确定其数量,对挖掘的土壤剖面利用诊断层和诊断特性定名得出。土壤界线则是利用内插法在调查路线上确定土壤类型分界点后,结合遥感图像将不同调查路线相同土壤类型分界点用平滑曲线连接最终确定。研究表明,土壤类型和土壤界线与母质、地形、植被和土地利用方式等多种景观因素有密切的联系,在土壤调查中要充分考虑景观因素的影响。黄礼辉 潘剑君 雷学成 杨志强 邬明伟 2011土壤2011,43,4:4
9海南岛五指山土壤指纹电荷特征及影响因素研究显示文摘采用指纹电荷法(chargefingerprint)研究了海南岛五指山土壤指纹电荷特征及其与土壤有机质、pH、土壤黏粒含量、交换性H、交换性Al等之间的关系。结果表明:在本研究所设定的土壤pH范围(7.0、6.4、5.8、5.2、4.6、4.0)内,土壤指纹电荷随土壤pH的降低而减少;土壤指纹电荷与土壤有机质、pH、交换性H、交换性Al等之间极显著相关。研究显示,土壤黏粒含量对土壤养分的保持能力在低pH条件下比在高pH条件下显得更为重要。在实际工作中可用有机质含量、pH、黏粒含量(体积%)、交换性H、交换性Al含量等常规理化指标来计算出指纹电荷,作为判断土壤养分保持能力及预测土壤酸化影响的一个重要指标。邓万刚 张甘霖 唐树梅 漆智平 龚子同 2006土壤2006,38,2:1
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