Effects of minimum soil disturbance practices on controlling water erosion in China's slope farmland: A meta‐analysis

2019 ◽  
Vol 30 (6) ◽  
pp. 706-716 ◽  
Author(s):  
Lizhi Jia ◽  
Wenwu Zhao ◽  
Bojie Fu ◽  
Stefani Daryanto ◽  
Shuai Wang ◽  
...  
2017 ◽  
Vol 173 ◽  
pp. 109-121 ◽  
Author(s):  
Die Chen ◽  
Wei Wei ◽  
Liding Chen

Weed Science ◽  
2018 ◽  
Vol 66 (4) ◽  
pp. 548-557 ◽  
Author(s):  
Stacy Davis ◽  
Jane Mangold ◽  
Fabian Menalled ◽  
Noelle Orloff ◽  
Zach Miller ◽  
...  

AbstractAlthough stand-alone and integrated management techniques have been cited as viable approaches to managing Canada thistle [Cirsium arvense(L.) Scop.], it continues to impact annual cropping and perennial systems worldwide. We conducted meta-analyses assessing effectiveness of management techniques and herbicide mechanism of action groups for controllingC. arvenseusing 55 studies conducted in annual cropping systems and 45 studies in perennial systems. Herbicide was the most studied technique in both types of systems and was effective at reducingC. arvense. However, integrated multitactic techniques, with or without herbicides, were more effective than sole reliance on herbicides for long-term control in both annual cropping and perennial systems. A variety of management techniques such as biocontrol, crop diversification, mowing, and soil disturbance provided control similar to that of herbicide. Our results suggest that many management techniques aimed at reducingC. arvensecan also improve crop yield or abundance of desired plants. This study highlights the need to devote more research to nonchemical and integrated management approaches forC. arvensecontrol.


CATENA ◽  
2020 ◽  
Vol 195 ◽  
pp. 104829 ◽  
Author(s):  
Lizhi Jia ◽  
Wenwu Zhao ◽  
Ruijie Zhai ◽  
Yiming An ◽  
Paulo Pereira
Keyword(s):  

2020 ◽  
Author(s):  
Tommaso Tadiello ◽  
Marco Acutis

<p>Conservation agriculture (CA) is characterized by minimal soil disturbance, permanent soil cover, and diversification of crop species, as stated by FAO in 2017. Many CA experiments, however, have been carried out so far, by taking into account only one or two of the three principles. Therefore, the meta-analyses recently published may fail in giving correct results about the CA effectiveness on agroecosystem variables, mostly on soil organic carbon (SOC) content or stock.</p><p>In preparation of conducting a meta-analysis, the present study was carried out to collect published results about the effect of the concurrent adoption of the three CA principles on SOC under Mediterranean climate with a systematic literature search in Scopus and Web of Science. Initially, a single nested query has been applied to both the database, using the Boolean operators, in order to include all the international literature about CA experiments and SOC variable without climate filter at this step. The resulting raw files were downloaded and merged in a unique dataframe using R software with "Bibliometrix" package<sup>1</sup>, which is an open-source tool developed for bibliometric analysis. The use of merged dataframe has mainly two advantages: it allows an easy duplicate removal (847 records in our case) and a more detailed information research both automatic and manual. Bibliometrix indeed provides tools for bibliometric analysis and data matrices building for co-citation, coupling, and co-word analysis highlighting, for example, that in the European continent both Italy and Spain are the most productive countries on these topics. <br>With these possibilities, as a further step, a new sub dataframe has been extracted by using the Köppen classification for Mediterranean climate (sub-climates, Csa/Csb/Csc), allowing a reduction of 32% of the records.</p><p>1) Aria, M., Cuccurullo, C., 2017. Bibliometrix: An R-tool for comprehensive science mapping analysis, Journal of Informetrics, 11(4).</p><div> <div> <div> </div> </div> </div>


2021 ◽  
Author(s):  
Yali Wei ◽  
Yan Meng ◽  
Na Li ◽  
Qian Wang ◽  
Liyong Chen

The purpose of the systematic review and meta-analysis was to determine if low-ratio n-6/n-3 long-chain polyunsaturated fatty acid (PUFA) supplementation affects serum inflammation markers based on current studies.


2013 ◽  
Vol 18 (1) ◽  
pp. 1-18 ◽  
Author(s):  
Robert J. Barth

Abstract Scientific findings have indicated that psychological and social factors are the driving forces behind most chronic benign pain presentations, especially in a claim context, and are relevant to at least three of the AMA Guides publications: AMA Guides to Evaluation of Disease and Injury Causation, AMA Guides to Work Ability and Return to Work, and AMA Guides to the Evaluation of Permanent Impairment. The author reviews and summarizes studies that have identified the dominant role of financial, psychological, and other non–general medicine factors in patients who report low back pain. For example, one meta-analysis found that compensation results in an increase in pain perception and a reduction in the ability to benefit from medical and psychological treatment. Other studies have found a correlation between the level of compensation and health outcomes (greater compensation is associated with worse outcomes), and legal systems that discourage compensation for pain produce better health outcomes. One study found that, among persons with carpal tunnel syndrome, claimants had worse outcomes than nonclaimants despite receiving more treatment; another examined the problematic relationship between complex regional pain syndrome (CRPS) and compensation and found that cases of CRPS are dominated by legal claims, a disparity that highlights the dominant role of compensation. Workers’ compensation claimants are almost never evaluated for personality disorders or mental illness. The article concludes with recommendations that evaluators can consider in individual cases.


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