检索范围:
排序: 展示方式:
COMPARING PERFORMANCE OF CROP SPECIES MIXTURES AND PURE STANDS
《农业科学与工程前沿(英文)》 2021年 第8卷 第3期 页码 481-489 doi: 10.15302/J-FASE-2021413
Intercropping is the planned cultivation of species mixtures on agricultural land. Intercropping has many attributes that make it attractive for developing a more sustainable agriculture, such as high yield, high resource use efficiency, lower input requirements, natural suppression of pests, pathogens and weeds, and building a soil with more organic carbon and nitrogen. Information is needed which species combinations perform best under different circumstances and which management is suitable to bring out the best from intercropping in a given production situation. The literature is replete with case studies on intercropping from across the globe, but evidence synthesis is needed to make this information accessible. Meta-analysis requires a careful choice of metric that is appropriate for answering the question at hand, and which lends itself for a robust meta-analysis. This paper reviews some metrics that may be used in the quantitative synthesis of literature data on intercropping.
关键词: intercropping species mixtures meta-analysis metrics indicators
THE 4C APPROACH AS A WAY TO UNDERSTAND SPECIES INTERACTIONS DETERMINING INTERCROPPING PRODUCTIVITY
《农业科学与工程前沿(英文)》 2021年 第8卷 第3期 页码 387-399 doi: 10.15302/J-FASE-2021414
Modern agriculture needs to develop transition pathways toward agroecological, resilient and sustainable farming systems. One key pathway for such agroecological intensification is the diversification of cropping systems using intercropping and notably cereal-grain legume mixtures. Such mixtures or intercrops have the potential to increase and stabilize yields and improve cereal grain protein concentration in comparison to sole crops. Species mixtures are complex and the 4C approach is both a pedagogical and scientific way to represent the combination of four joint effects of Competition, Complementarity, Cooperation, and Compensation as processes or effects occurring simultaneously and dynamically between species over the whole cropping cycle. Competition is when plants have fairly similar requirements for abiotic resources in space and time, the result of all processes that occur when one species has a greater ability to use limiting resources (e.g., nutrients, water, space, light) than others. Complementarity is when plants grown together have different requirements for abiotic resources in space, time or form. Cooperation is when the modification of the environment by one species is beneficial to the other(s). Compensation is when the failure of one species is compensated by the other(s) because they differ in their sensitivity to abiotic stress. The 4C approach allows to assess the performance of arable intercropping versus classical sole cropping through understanding the use of abiotic resources.
关键词: compensation competition complementarity cooperation interspecific interactions land equivalent ratio light nutrients species mixtures water
《农业科学与工程前沿(英文)》 2021年 第8卷 第3期 页码 460-473 doi: 10.15302/J-FASE-2021416
The EIP-Agri multiactor approach was exemplified during a 3-day workshop with 63 project participants from the EU H2020 funded project “Redesigning European cropping systems based on species MIXtures”. The objective was to share firsthand experience of participatory research among researchers who were mostly not familiar with this approach. Workshop participants were divided into smaller multidisciplinary groups and given the opportunity to interact with representatives from eight actor positions in the value chain of the agrifood cooperative Terrena located in Western France. The four stages of the workshop were: (1) key actor interviews, (2) sharing proposed solutions for overcoming barriers, and (3) developing possible interdisciplinary concepts. Expressions of frustration were recorded serving both as a motivation for group members to become more aware of the scientific concerns and practices of their colleagues, as well as a recognition that some researchers have better skills integrating qualitative approaches than others. Nevertheless, the workshop format was an effective way to gain a common understanding of the pertinent issues that need to be addressed to meet overall multiactor-approach objectives. Working with the actor networks was identified and emphasized as a means to overcome existing barriers between academia and practice in order to coproduce a shared vision of the benefits of species mixture benefits.
关键词: agroecology codesign intercropping knowledge sharing participatory methods
Toxicity models of metal mixtures established on the basis of “additivity” and “interactions”
Yang Liu,Martina G. Vijver,Bo Pan,Willie J. G. M. Peijnenburg
《环境科学与工程前沿(英文)》 2017年 第11卷 第2期 doi: 10.1007/s11783-017-0916-8
关键词: Metal Mixtures Toxicity Additivity Modeling Interactions
Effect of carbon black on the dynamic moduli of asphalt mixtures and its master curves
Chuangmin LI, Fanbo NING, Yuanyuan LI
《结构与土木工程前沿(英文)》 2019年 第13卷 第4期 页码 918-925 doi: 10.1007/s11709-019-0526-6
关键词: dynamic modulus carbon black master curve modified asphalt asphalt mixture
Boiling heat transfer correlations for refrigerant mixtures flowing inside micro-fin tubes
ZHANG Xiaoyan, ZHANG Xingqun, CHEN Yunguang, YUAN Xiuling
《能源前沿(英文)》 2008年 第2卷 第4期 页码 489-493 doi: 10.1007/s11708-008-0110-6
Biodegradable, superhydrophobic walnut wood membrane for the separation of oil/water mixtures
《化学科学与工程前沿(英文)》 2022年 第16卷 第9期 页码 1377-1386 doi: 10.1007/s11705-022-2157-z
关键词: wood nanotechnology superhydrophobic biodegradable surface modification oil/water separation
Tracking in urban wastewater treatment plants in a cold region: Occurrence, species and infectivity
《环境科学与工程前沿(英文)》 2022年 第16卷 第9期 doi: 10.1007/s11783-022-1533-8
• Cryptosporidium in WWTPs in a cold region was investigated in different seasons.
关键词: WWTPs Cryptosporidium Occurrence Species Infectivity Low temperature
Xin ZOU, Maoqiong GONG, Gaofei CHEN, Zhaohu SUN, Jianfeng WU
《能源前沿(英文)》 2010年 第4卷 第4期 页码 527-534 doi: 10.1007/s11708-010-0109-7
陈光伟,李洪涛,陈荣生
《中国工程科学》 2010年 第12卷 第4期 页码 90-94
总结并评价了沥青混合料抗剪试验方法、抗剪机理及抗剪设计研究现状, 对9种剪切试验方法的分析和评价有助于设计、施工和科研人员正确选用这些试验方法。混合料剪切强度由沥青胶泥的性质、集料和沥青界面的剪切强度和集料之间的嵌挤情况共同决定,为提高混合料抗剪性能指出了方向。抗剪设计在应用于工程前尚需深入研究容许剪应力法中相关系数的确定、基于抗剪性能的车辙预估模型的标定等问题。
Huaqiang CHU, Qiang CHENG, Huaichun ZHOU, Fengshan LIU
《能源前沿(英文)》 2011年 第5卷 第2期 页码 149-158 doi: 10.1007/s11708-010-0124-8
IN VITRO ACTIVITY OF EXTRACTS OF FIVE MEDICINAL PLANT SPECIES ON PLANT PATHOGENIC FUNGI
《农业科学与工程前沿(英文)》 2021年 第8卷 第4期 页码 635-644 doi: 10.15302/J-FASE -2020343
The antifungal effectiveness of extracts of five medicinal plant species was determined. The inhibitory activity of extracts of Eucalyptus tereticornis, Xanthium sibiricum, Artemisia argyi, Tupistra chinensis and Pyrola calliantha were evaluated against the mycelial growth of the plant pathogenic fungi Aspergillus niger, Botrytis cinerea, Penicillium digitatum, P. expansum, P. italicumand Rhizopus stolonifer. All plant extracts were prepared at 60°C using solvents (either water, 50% ethanol (v/v), 95% ethanol (v/v), ethyl acetate or petroleum ether). Fungicidal effects of all plants tested were confirmed. Different extracts from the same plant species gave different degrees of inhibition. All aqueous extracts had weak or no activity on all fungi tested. Ethyl acetate and 95% ethanol extracts from T. chinensis rhizomes gave greater inhibition and a broader spectrum inhibition than the other extracts. T. chinensis may have potential as a new natural fungicide and may be used for the preservation of agricultural and forestry products such as fruits and vegetables.
关键词: Botrytis cinerea / food preservation / plant diseases / plant pathogenic fungi / Tupistra chinensis
Roles of various Ni species on TiO
Xiaoping CHEN, Jihai XIONG, Jinming SHI, Song XIA, Shuanglin GUI, Wenfeng SHANGGUAN
《能源前沿(英文)》 2019年 第13卷 第4期 页码 684-690 doi: 10.1007/s11708-018-0585-8
《化学科学与工程前沿(英文)》 2021年 第15卷 第6期 页码 1524-1536 doi: 10.1007/s11705-021-2106-2
关键词: Ce–Zr–Cu–O CO oxidation reducible copper species oxygen vacancy cooperative effect
RESEARCH PROGRESS ON THE IMPACT OF NITROGEN DEPOSITION ON GLOBAL GRASSLANDS
《农业科学与工程前沿(英文)》 2022年 第9卷 第3期 页码 425-444 doi: 10.15302/J-FASE-2022457
● Grasslands in many regions of the world have been impacted by atmospheric nitrogen deposition.
关键词: Acidification biomass production critical load eutrophication species composition species richness
标题 作者 时间 类型 操作
THE 4C APPROACH AS A WAY TO UNDERSTAND SPECIES INTERACTIONS DETERMINING INTERCROPPING PRODUCTIVITY
期刊论文
TRANSLATING THE MULTI-ACTOR APPROACH TO RESEARCH INTO PRACTICE USING A WORKSHOP APPROACH FOCUSING ON SPECIESMIXTURES
期刊论文
Toxicity models of metal mixtures established on the basis of “additivity” and “interactions”
Yang Liu,Martina G. Vijver,Bo Pan,Willie J. G. M. Peijnenburg
期刊论文
Effect of carbon black on the dynamic moduli of asphalt mixtures and its master curves
Chuangmin LI, Fanbo NING, Yuanyuan LI
期刊论文
Boiling heat transfer correlations for refrigerant mixtures flowing inside micro-fin tubes
ZHANG Xiaoyan, ZHANG Xingqun, CHEN Yunguang, YUAN Xiuling
期刊论文
Tracking in urban wastewater treatment plants in a cold region: Occurrence, species and infectivity
期刊论文
Experimental study on saturated flow boiling heat transfer of R290/R152a binary mixtures in a horizontal
Xin ZOU, Maoqiong GONG, Gaofei CHEN, Zhaohu SUN, Jianfeng WU
期刊论文
Nongray radiation from gas and soot mixtures in planar plates based on statistical narrow-band spectral
Huaqiang CHU, Qiang CHENG, Huaichun ZHOU, Fengshan LIU
期刊论文
Roles of various Ni species on TiO
Xiaoping CHEN, Jihai XIONG, Jinming SHI, Song XIA, Shuanglin GUI, Wenfeng SHANGGUAN
期刊论文
Cooperative effect between copper species and oxygen vacancy in CeZrCuO catalysts for carbon monoxide
期刊论文