Landscape based assessment of total soil erosion risk on agricultural fields in Canada

来源 :第20届国际土壤与耕作研究组织大会 | 被引量 : 0次 | 上传用户:stage7
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  Soil erosion is a major threat to the sustainability of agriculture in Canada.Soil erosion occurs through three major processes in agricultural land: water,wind and tillage erosion.However,each erosion process has its distinctive patterns in the landscapes and the effects are not always additive.
其他文献
Retention of carbon(C)in arable soils has been considered as a potential mechanism to mitigate soil degradation and to sustain crop productivity.Hence,we appraised the 3-yr effect of different tillage
No-tillage,cover crops,and N fertilization play important roles in conserving or increasing soil organic carbon(SOC).However,the effects of their interaction are less well known,particularly in Asian
Globally potato production is in excess of 364 million tonnes and growing with China the largest single producer with an output in excess of 85 million tonnes.Productivity varies greatly with western
This study reprts results of field scale soil erosion assessment that employed survey methodology of rills conducted under actual farming condition at two contrasting topographies(hillslope and flatla
The aim of this research was to study the influence of different fertilizer application on runoff and soil loss during peanut growth in a field experiment.Rice straw mulch,rice-derived biochar and swi
Sediments adversely affect the quality of surface waters and are a major source of contaminants,such as nutrients and pesticides in agricultural watersheds.In many agricultural watersheds,it has been
Up to date,most water erosion studies have been conducted at small plot scale and erosion rate is often obtained as an average value for the whole plot.There is a lack of detailed information on the c
Conservation tillage in combination with crop rotation,residue management and cover crops are key components of conservation agriculture.A positive long-term effect of applying all components of conse
Soil degradation,desertification,climate change and increasing cost of inputs are big challenges for crop production in dryland areas of Pakistan.Mismanagement of natural resources through clean culti
Soil structure regulates the majority of the chemical,physical and biological properties and processes of soil.Hence,in a strict sense,soil quality is essentially soil structure-related.The overall ai