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Potential Effect of Conservation Tillage on Sustainable Land Use: A Review of Global Long-Term Studies

Pedosphere 2006年第5期16卷 587-595页

作者： wANG Xiao-bin CAI Dian-Xiong w.b.hoogmoed o.oenema U.D.PERDoK State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil Science Chinese Academy of Sciences Nanjing 210008 （China） Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences Beijing 100081 （China） Farm Technology Group Wageningen University P. O. Box 17 6700 AA Wageningen （The Netherlands） Soil Quality Group Wageningen University P.O.Box 8005 6700 EC Wageningen （The Netherlands）

Although understood differently in different parts of the world, conservation tillage usually includes leaving crop residues on the soil surface to reduce tillage. Through a global review of long-term conservation tillage research, this paper discusses the long-term effect of conservation tillage on sustainable land use, nutrient availability and crop yield response. Research has shown several potential benefits associated with conservation tillage, such as potential carbon sequestration, nutrient availability, and yield response. This research would provide a better perspective of the role of soil conservation tillage and hold promise in promoting application of practical technologies for dryland farming systems in China.

关键词： conservation tillage no-till reduced tillage residue management

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维普期刊数据库

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Scenario Analysis of Tillage, Residue and Fertilization Management Effects on Soil organic Carbon Dynamics

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Pedosphere 2005年第4期15卷 473-483页

作者： wANG Xiao-bin CAI Dian-Xiong w. b. hoogmoed o. oenema U. D. PERDoK Soil and Fertilizer Institute Chinese Academy of Agricultural Sciences Beijing 100081 （China） Soil Technology Group Wageningen University P. O. Box 17 6700 AA Wageningen （The Netherlands） Soil Quality Group Wageningen University P. O. Box 8005 6700 EC Wageningen （The Netherlands）

based on data from 10-year field experiments on residue/fertilizer management in the dryland farming region of northern China, Century model was used to simulate the site-specific ecosystem dynamics through adjustment of the model＇s parameters, and the applicability of the model to propose soil organic carbon （SoC） management temporally and spatially, in cases such as of tillage/residue/fertilization management options, was identified v/a scenario *** between simulations and actual measurements were in close agreement when appropriate applications of stover,manure and inorganic fertilizer were combined. Simulations of extreme C/N ratios with added organic materials tended to underestimate the measured effects. Scenarios of changed tillage methods, residue practices and fertilization options showed potential to maintain and enhance SoC in the long run, while increasing inorganic N slowed down the SoC turnover rate but did not create a net C sink without any organic C input. The Century model simulation showed a good relationship between annual C inputs to the soil and the rate of C sequestration in the top 20 cm layer and provided quantitative estimations of changes in parameters crucial for sustainable land use and management. Conservation tillage practices for sustainable land use should be integrated with residue management and appreciable organic and inorganic fertilizer application, adapted according to the local residue resource, soil fertility and production conditions. At least 50% residue return into the soil was needed annually for maintenance of SoC balance, and manure amendment was important for enhancement of SoC in small crop-livestock systems in which crop residue land application was limited.

关键词： Century model conservation tillage crop residue dryland soil organic carbon

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维普期刊数据库

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土壤保持耕作——全球农业可持续发展优先领域

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中国农业科学 2006年第4期39卷 741-749页

作者：王小彬蔡典雄华珞 hoogmoed w.b.oenema o Perdok U D 首都师范大学资源环境与地理信息系统北京市重点实验室 Soil Technology Group Wageningen UniversityP.O.Box176700AA WageningenThe Netherlands Soil Quality Group Wageningen UniversityP.O.Box80056700EC WageningenThe Netherlands

从农业活动对全球变化以及对农业可持续发展的影响进而导致全球性土壤保持需求的迫切性增加出发,追踪了国外土壤保持耕作领域的研究和发展动态;对中国该领域研究发展现状和研究水平,从时间、深度、方法、生产应用等方面与国外进行了比... 详细信息

从农业活动对全球变化以及对农业可持续发展的影响进而导致全球性土壤保持需求的迫切性增加出发,追踪了国外土壤保持耕作领域的研究和发展动态;对中国该领域研究发展现状和研究水平,从时间、深度、方法、生产应用等方面与国外进行了比较分析。中国是一个水土流失和耕地退化严重的农业大国,而从全球统计数字来看,中国土壤保持耕作面积目前仅占全球保持耕作面积的0.2%,仅占全国耕地面积的0.1%,其现状与中国耕地资源和环境的继续退化以及对土壤保持耕作需求的增加极不相符。加强中国土壤保持耕作系统研究和土壤保持耕作“节能固碳”长期建设不仅对中国而且对全球变化及农业可持续发展具有重大意义。鉴于中国土壤保持耕作领域研究和发展所存在的不足和所面临的更大挑战,以及该领域研究涉及到复杂的农业系统“耕作管理-生物过程-环境变化”相互作用及其系统能流-碳流循环过程,尤其农业生态系统碳汇/源估量尚存在诸多不确定性因素等科学问题,有必要运用综合的系统性研究分析方法,借助国外长期试验和理论研究经验,以及系统模型模拟研究手段等多学科和交叉学科知识,加速提升中国土壤保持耕作领域的科研实力和水平,为实现碳汇/源科学调控管理、减缓农业对温室效应贡献、促进农业可持续发展提供科学依据。

关键词：土壤保持耕作全球变化农业可持续发展能量平衡碳循环专论

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A Scenario Analysis of Conservation Tillage Effects on Soil organic Carbon Dynamics for Dryland Farming Systems of Northern China

A Scenario Analysis of Conservation Tillage Effects on Soil ...

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国际农业工程大会

作者： w.b. hoogmoed o. oenema U.D. Perdok Soil Technology Group Wageningen University Technotron Bornsesteeg 59 6708 PD Wageningen The Netherlands Soil Quality Group Wageningen University P.O. Box 8005 6700 EC Wageningen The Netherlands

＜正＞ Using the Century model to simulate SoC dynamics linked with measurement data from the 10y field experiments concerning residue/manure and fertilizer application for dryland corn production systems of Northern China resulted in close agreements between simulations and actual measurements. The model simulated more accurately over longer time periods when

关键词： Soil organic carbon Crop residue Conservation tillage Corn Century model Dryland

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Animal Draft Ripping: The Introduction of a Conservation Farming Technology in Zambia

Animal Draft Ripping: The Introduction of a Conservation Far...

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国际农业工程大会

作者： hoogmoed willem buijsse Martijn Samazaka David wageningen University Farm and Soil Technology Group P.O. Box 17 6700 AA Wageningen The Netherlands wageningen University Farm and Soil Technology Group P.O. Box 17 6700 AA Wageningen The Netherlands Golden Valley Agricultural Research Trust C/O CDT Box 670577 Mazabuka Zambia

＜正＞ In Zambia, bad farming conditions, caused by agro-ecological and socio-cultural factors, lead to depleted soils and low yields. For this reason, there is need to adapt the current ’intensive’ farming system based on mouldboard ploughing to a system with lower inputs in terms of fertiliser and labour. Since the early 1990s the ripping technology has been developed as a conservation tillage technology

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