高会议,郭胜利,刘文兆,李淼,张健.不同施肥土壤水分特征曲线空间变异[J].农业机械学报,2014,45(6):161-165,176.
Gao Huiyi,Guo Shengli,Liu Wenzhao,Li Miao,Zhang Jian.Spatial Variability of Soil Water Retention Curve under Fertilization Practices in Arid-highland of the Loess Plateau[J].Transactions of the Chinese Society for Agricultural Machinery,2014,45(6):161-165,176.
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不同施肥土壤水分特征曲线空间变异   [下载全文]
Spatial Variability of Soil Water Retention Curve under Fertilization Practices in Arid-highland of the Loess Plateau   [Download Pdf][in English]
投稿时间:2013-07-24  
DOI:10.6041/j.issn.1000-1298.2014.06.024
中文关键词:  施肥措施  水分特征曲线  空间变异  比水容量
基金项目:国家高技术研究发展计划(863计划)资助项目(2013AA102302、2013AA102304)
作者单位
高会议 中国科学院 
郭胜利 西北农林科技大学 
刘文兆 西北农林科技大学 
李淼 中国科学院 
张健 中国科学院
无锡中科智能农业发展有限责任公司 
中文摘要:为了探讨长期施肥土壤水分特征曲线空间变异性及其影响因素,依托中国科学院黄土高原长武农业生态实验站中的长期定位实验,采用高速离心机法测定长期施肥条件下不同吸力的土壤含水率,并利用Van Gennuchten数学模型对水分特征曲线进行拟合,对比研究了不同施肥土壤水分特征曲线、持水性、供水性及土壤水分的有效性。结果表明:由于长期不同施肥使其土壤结构发生差异,导致土壤水分特征曲线存在明显的差异。化肥处理(N、NP)破坏了土壤结构,降低了土壤持水性能;有机肥(M、NPM)的施入增加了土壤有机质的含量,改善了土壤结构,提高了土壤持水性能。有机肥处理(M、NPM)土壤水分的有效性明显高于其他处理,N、NP、CK处理之间无明显差异。土壤供水能力由强到弱为N、CK、NP、NPM、M。
Gao Huiyi  Guo Shengli  Liu Wenzhao  Li Miao  Zhang Jian
Chinese Academy of Sciences;Northwest A&F University;Northwest A&F University;Chinese Academy of Sciences;Chinese Academy of Sciences;China Sciences Intelligent Agriculture Development Co., Ltd. of Wuxi
Key Words:Fertilization measures  Water characteristic curve  Spatial variability  Specific water capacity
Abstract:The aim of this study is to explore the spatial variability of soil moisture characteristic curve with the long term fertilization, and find out the influencing factors of that variability. Based on the long term experiment in Agricultural Ecological Experimental Station of the Loess Plateau of Chinese Academy in Changwu, the soil moisture of different suction with the long term fertilization was measured using the method of high-speed centrifuge, and the water characteristic curves were obtained by the mathematical models of Van Gennuchten. Then, the parameters such as soil moisture characteristic curves, water capacity, water supply and soil moisture availability with the multiple fertilizations were compared. The results showed that the significant variations of soil moisture characteristic curve were attributed to the changes of soil structure caused by the long-term fertilization. Chemical fertilizers (N, NP) destroyed soil structure, which reduced the soil water capacity. Organic fertilizer (M, NPM) increased the soil organic matter content, and then improved the soil structure, which increased soil water capacity. The effectiveness of the soil moisture of applying manure (M, NPM) was significantly higher than that of N, NP, CK. The water supply capacity and soil water availability were ranked as N, CK, NP, NPM, M.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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