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A biogeographic map of soil bacterial communities in wheats field of the North China Plain

Soil Ecology Letters 2019年第1期1卷 50-58页

作者： Yu Shi Yuntao Li Meiqing Yuan Jonathan M.Adams Xianzhang Pan Yunfeng Yang Haiyan Chu State Key Laboratory of Soil and sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Forensic Genetics of Ministry of Public Security Institute of Forensic Science of Ministry of Public SecurityBeijing 100038China School of Water Energy and EnvironmentCranfield UniversityCranfield MK460ALUK State Key Laboratory of Environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China

The vast diversity of soil bacteria provides essential ecosystem services that support agricultural *** in the diversity and composition of soil biota may have predictive values for soil nutrient cycling and resilience of ecosystem services,thus providing valuable insights to improve food *** North China Plain(NCP)is one of the world’s key agricultural regions,supplying more than 50% of the cereal consumed in ***,it is unknown whether soil microbial diversity is predictable across the *** the MiSeq Illumina platform,we examined bacterial community variation in relation to spatial and environmental factors from 243 soils in wheat-maize double cropping rotation fields across the NCP,which cover nearly 0.3 million km^(2).Based on observed bacterial communities and their relationships with environmental factors,we generated a map of bacterial communities across the *** highest bacterial diversity was found in the middle part of the NCP,with most of the variation in diversity attributable to differences in the community similarity of Actinobacteria and *** findings provide important baseline information for analyzing the relationships between microbial community,soil functionality and crop yields.

关键词： Predicting map Bacteria diversity Actinobacteria Alphaproteobacteria

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An overview of the use of plastic-film mulching in China to increase crop yield and water-use efficiency

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National Science Review 2020年第10期7卷 1523-1526页

作者： Dongbao Sun Haigang Li Enli Wang Wenqing He Weiping Hao Changrong Yan Yuzhong Li Xurong Mei Yanqing Zhang Zhanxiang Sun Zhikuan Jia Huaiping Zhou Tinglu Fan Xucheng Zhang Qin Liu Fengju Wang Chaochun Zhang Jianbo Shen Qingsuo Wang Fusuo Zhang Centre for Resources Environment and Food Security China Agricultural University Key Laboratory of Dryland Agriculture of Ministry of Education Institute of Environment and Sustainable Development in Agriculture Chinese Academy of Agricultural Sciences CSIRO Agriculture Flagship Inner Mongolia key laboratory of soil quality and nutrient resources Key laboratory of grassland resource (IMAU) Ministry of EducationCollege of Grassland Resources and EnvironmentInner Mongolia Agricultural University Chinese Academy of Agricultural Sciences Liaoning Academy of Agricultural Sciences College of Agronomy (Academy of Agricultural Sciences) Northwest A & F University Institute of Agricultural Environment and Resource Shanxi Academy of Agricultural Sciences Institute of Dryland Agricultural Research Gansu Academy of Agricultural Sciences Institute of Crop Science Chinese Academy of Agricultural Sciences

Since 1990, crop yields have stagnated in many parts of the world, posing a significant challenge to global food security [1].As such, innovative solutions are needed to increase the resource-use efficiency of cropping systems to produce more grains per unit area. In China, which is home to one-fifth of the global population,

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基于SWAT模型新开发梯田模块的中国南方红壤区梯田水沙及养分流失模拟

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西北农林科技大学学报（自然科学版） 2014年第5期42卷 147-156页

作者：邵辉高建恩 Claire Baffaut 王克勤樊恒辉西北农林科技大学资源环境学院陕西杨凌712100 西北农林科技大学水土保持研究所陕西杨凌712100 西北农林科技大学水利与建筑工程学院陕西杨凌712100 西北农林科技大学国家节水灌溉杨凌工程技术研究中心陕西杨凌712100 中国科学院水利部水土保持研究所陕西杨凌712100 USDA-ARS cropping systems and Water Quality Research Unit Missouri 65211USA 西南林业大学环境科学与工程学院云南昆明650224

【目的】采用SWAT模型新开发梯田模块对中国南方红壤区梯田的水沙和养分流失进行模拟,分析SWAT模型梯田模块在中国南方水土流失地区的适用性。【方法】采用SWAT模型中新开发的梯田模块,结合其全球应用验证,在初步对美国软埝验证的基础上... 详细信息

【目的】采用SWAT模型新开发梯田模块对中国南方红壤区梯田的水沙和养分流失进行模拟,分析SWAT模型梯田模块在中国南方水土流失地区的适用性。【方法】采用SWAT模型中新开发的梯田模块,结合其全球应用验证,在初步对美国软埝验证的基础上,利用资料较全的位于中国南方红壤区的云南尖山河小流域2007-2008年典型径流小区降雨径流、侵蚀产沙和总氮实测资料,对隔坡梯田水沙及面源污染调控过程进行模拟与验证。【结果】SWAT模型梯田模块对红壤区径流、侵蚀产沙及总氮的模拟结果能满足模型精度要求。利用梯田模块对红壤区隔坡梯田结构进行的优化表明,在坡度小于18.58°,梯田单元坡长小于20m的坡地上修建平坡比大于1∶5的单阶地隔坡梯田,可满足容许土壤流失量的要求。【结论】基于SWAT模型开发的梯田模块能够反映中国南方红壤区梯田降雨径流泥沙养分的运移过程,为研究水土保持措施对流域水循环影响提供了新的技术支撑。

关键词： SWAT模型水沙运移养分流失红壤区隔坡样田中国南方

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Haplotype variations in QTL for salt tolerance in Chinese wheat accessions identified by marker-based and pedigree-based kinship analyses

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The Crop Journal 2020年第6期8卷 1011-1024页

作者： Shizhou Yu Jianhui Wu Meng Wang Weiming Shi Guangmin Xia Jizeng Jia Zhensheng Kang Dejun Han State Key Laboratory of Crop Stress Biology for Arid Areas Northwest A&F UniversityYangling 712100ShaanxiChina Molecular Genetics Key Laboratory of China Tobacco Guizhou Academy of Tobacco ScienceGuiyang 550081GuizhouChina State Key Laboratory of Soil and sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008JiangsuChina Key Laboratory of Plant Cell Engineering and Germplasm Innovation Ministry of EducationSchool of Life SciencesShandong UniversityJinan 250100ShandongChina Key Laboratory of Crop Gene Resources and Germplasm Enhancement Ministry of Agriculture/The National Key Facility for Crop Gene Resources and Genetic ImprovementInstitute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China

Most modern wheat cultivars were selected on the basis of yield-related indices measured under optimal fertilizer and irrigation *** climate change,land degradation and salinity caused by sea water encroachment,wheat is increasingly subjected to environmental ***,expanding urbanization increasingly encroaches upon prime agricultural land in countries like China,and alternative cropping areas must be *** of these areas have moderate constraining factors,such as ***,it is important to investigate whether current genetic materials and breeding procedures are maintaining adequate variability to address future problems caused by abiotic *** this study,a panel of 307 wheat accessions,including local landraces,exotic cultivars used in Chinese breeding programs and Chinese cultivars released during different periods since1940,were subjected to a genome-wide association study to dissect the genetic basis of salinity *** marker-based and pedigree-based kinship analyses revealed that favorable haplotypes were introduced in some exotic cultivars as well as a limited number of Chinese landraces from the 1940 ***,improvements in salinity tolerance during modern breeding are not as obvious as that of *** broaden genetic diversity for increasing salt tolerance,there is a need to refocus attention on local landraces that have high degrees of salinity tolerance and carry rare favorable alleles that have not been exploited in breeding.

关键词： Genome-wide association study Linkage disequilibrium Salt tolerance Haplotype tracing Triticum aestivum

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Studies on the Situation of Soil Organic Carbon Storage in Croplands in Northeast of China

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Agricultural Sciences in China 2005年第8期4卷 594-600页

作者： QIU Jian-jun WANG Li-gang TANG Hua-jun LI Hong Changsheng LI Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences Beijing 100081 P.R.China Meteorology Bureau of Qiqihaer Qiqihaer 161000 P.R.China Complex systems Research Center Institute for the Earth Oceans and Space University of New Hampshire Durham NH USA

This paper aims to estimate the soil organic carbon （SOC） storage in Northeast of China, identify its balance situation and changing trends under current cropping systems, and finally put forward some strategies to keep the SOC in balance. A biogeochemical model （DNDC） for agro-ecosystem was employed to predict SOC dynamics in agricultural ecosystems at regional scale. Data on climate, soil properties, cropping systems, acreage, and management practices at county scale were collected from various sources and integrated into a GIS database to support the model runs at the regional scale. The model predicted results revealed that （1） Total SOC storage in agricultural lands in Heilongjiang, Jilin and Liaoning provinces in Northeast of China is about 1 243.48 × 10^6 t （0-30cm soil layer）, respectively occupying 58.4, 25.5 and 16.1%; （2） Under the current cultivation systems, SOC is in a situation of net loss with carbon losing at a high rate of 31.22 × 10^6 t a^-1 （respectively 59.3, 25.9 and 14.8% in Heilongjiang, Jilin and Liaoning provinces） and 2.05 t ha^-1 a^-1, the situation is more serious in Heilongjiang and Jilin provinces; and （3） Protective cultivations, such as manuring, returning more residue of crop to the field, adopting no-till, are very useful for the accumulation of SOC in these regions.

关键词： Northeast of China Soil Soil organic carbon Simulation model

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Bioplastic reinforced with parthenocarpic date palm fibers:Characterization and microorganisms involved in degradation

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Food Bioscience 2023年第1期51卷 1202-1211页

作者： Hammadi Hamza Imen Bettaieb Ameni Benltoufa Achraf Ghorbal Hela Ben Ahmed Walid Elfalleh Arid and Oases cropping Laboratory Arid Area InstituteMedenine4119Tunisia Energy WaterEnvironment and Process Laboratory(LR18ES35)National Engineering School of GabesUniversity of GabesGabes6072Tunisia Research Unit Advanced Materials Applied MechanicsInnovative Processes and EnvironmentUR22ES04Higher Institute of Applied Sciences and Technology of Gabes(ISSATG)University of GabesGabes6072Tunisia Laboratory of Plant Soil and Environment Interactions LR21ES01 Department of BiologyFaculty of Science of Tunis2092 TunisUniversity of Tunis EL ManarTunis1068Tunisia

The environment suffers more and more from the accumulation of plastics made by petrochemical rows,which are *** is why this study aims to develop bio-based films by incorporating fibers concentrate of parthenocarpic date(FCPD)as easily available *** FCPD based film showed enhanced thickness,water solubility,phenol content and antioxidant ***,the transparency was reduced which enhanced the film opacity by the addition of *** electronic microscopy(SEM)showed homogeneity between fibers and the constituents of the *** addition of FCPD did not change the FTIR peaks in comparison with starch-based *** hydroxyl index value and water contact angle showed that the hydrophilicity increases with the film FCPD *** addition,the FCPDs have enhanced the microbial biodegradation of the developed films as showed by *** PCR using specific primers for nine target microbial groups showed that fungi were the predominant agent of the *** bacteria,realtime PCR showed thatβ-Proteobacteria,Acidobacteria,Bacteriodetes andα-Proteobacteria groups were involved in film biodegradation.

关键词： Parthenocarpic date Fibers Bioplastic Biodegradation SEM qPCR

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Image Hiding with High Robustness Based on Dynamic Region Attention in the Wavelet Domain

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Computer Modeling in Engineering & Sciences 2024年第10期141卷 847-869页

作者： Zengxiang Li Yongchong Wu Alanoud Al Mazroa Donghua Jiang Jianhua Wu Xishun Zhu Department of Information Engineering Gongqing CollegeNanchang UniversityJiujiang332020China School of Information Engineering Gongqing Institute of Science and TechnologyJiujiang332020China Department of Information systems College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityRiyadh11671Saudi Arabia School of Computer Science and Engineering Sun Yat-sen UniversityGuangzhou511400China School of Information Engineering Nanchang UniversityNanchang330031China School of Mathematics and Statistics Hainan Normal UniversityHaikou571158China

Hidden capacity,concealment,security,and robustness are essential indicators of hiding ***,hiding algorithms tend to focus on algorithmic capacity,concealment,and security but often overlook the robustness of the *** practical applications,the container can suffer from damage caused by noise,cropping,and other attacks during transmission,resulting in challenging or even impossible complete recovery of the secret *** image hiding algorithm based on dynamic region attention in the multi-scale wavelet domain is proposed to address this issue and enhance the robustness of hiding *** this proposed algorithm,a secret image of size 256×256 is first decomposed using an eight-level Haar wavelet *** wavelet transform generates one coefficient in the approximation component and twenty-four detail bands,which are then embedded into the carrier image via a hiding *** the recovery process,the container image is divided into four non-overlapping parts,each employed to reconstruct a low-resolution secret *** lowresolution secret images are combined using densemodules to obtain a high-quality secret *** experimental results showed that even under destructive attacks on the container image,the proposed algorithm is successful in recovering a high-quality secret image,indicating that the algorithm exhibits a high degree of robustness against various *** proposed algorithm effectively addresses the robustness issue by incorporating both spatial and channel attention mechanisms in the multi-scale wavelet domain,making it suitable for practical *** conclusion,the image hiding algorithm introduced in this study offers significant improvements in robustness compared to existing *** ability to recover high-quality secret images even in the presence of destructive attacksmakes it an attractive option for various *** research and experimentation can explore the algorith

关键词： Image hiding robustness wavelet transform dynamic region attention

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Long-term manure application increased soil organic carbon and nitrogen mineralization through accumulation of unprotected and physically protected carbon fractions

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Pedosphere 2023年第2期33卷 343-354页

作者： Muhammad Nadeem ASHRAF Cheng HU Xiangru XU Tariq AZIZ Lei WU Muhammad Ahmed WAQAS Muhammad FAROOQ Xu HU Wenju ZHANG Minggang XU Key Laboratory of Cultivated Land Quality Monitoring and Evaluation Ministry of Agriculture and Rural AffairsInstitute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural SciencesBeijing 100081(China) Institute of Soil and Environmental Sciences University of AgricultureFaisalabad 38040(Pakistan) Institute of Plant Protection and Soil Science Hubei Academy of Agricultural SciencesWuhan 430064(China) Institute of Soil and Environmental Sciences University of AgricultureFaisalabadSub-Campus DepalpurOkara 56130(Pakistan) Institute of Environment and sustainable Development in Agriculture Chinese Academy of Agricultural SciencesBeijing 100081(China) Department of Plant Sciences College of Agricultural and Marine SciencesSultan Qaboos UniversityAl-Khoud 123(Oman) Shanxi Province Key Laboratory of Soil Environment and Nutrient Resources Engineer and Technology Academy of Ecology and EnvironmentShanxi Agricultural UniversityTaiyuan 030031(China)

Soil organic carbon(SOC)and nitrogen(N)mineralization are important biogeochemical processes associated with soil *** processes are influenced by physically,chemically,and biologically stabilized SOC fractions,the mechanisms of which are not well *** present study was conducted to evaluate the combined effect of manure and mineral fertilizers on the contents of SOC fractions to promote the mineralization of SOC and *** included:i)no fertilizer control(CK);ii)a combination of mineral N,phosphorus,and potassium fertilizers(NPK);iii)manure alone(M);iv)manure combined with NPK(MNPK);and v)a high dose of manure combined with NPK(hMNPK).The combined uses of manure and mineral fertilizers(MNPK and hMNPK)enhanced the accumulation of the unprotected coarse particulate organic carbon(C)fraction(cPOC)by 44%-72%compared to *** applications(M,MNPK and hMNPK)enhanced physically microaggregate-protected organic C(μagg),physicochemically protected organic C within the microaggregate-derived silt(μsilt)fraction(H-μsilt),and physicobiochemically protected organic C within theμsilt fraction(NH-μsilt)by 30%-56%,62%-150%,and 27%-51%,*** contrast,all chemically and biochemically protected SOC fractions showed a minor response to manure *** of cPOC,μagg,H-μsilt,and physicochemically protected organic C within the microaggregate-derived clay fraction(H-μclay)significantly contributed to the mineralization of SOC and N,resulting in a significant increase in rice grain yield with long-term manure *** summary,long-term combined use of manure and mineral fertilizers improved SOC accumulation in unprotected and physically protected fractions,which enhanced SOC and N mineralization and benefited soil productivity in a rice-wheat cropping system.

关键词： fertilization strategy grain yield organic C fraction organic matter stabilization protection mechanism

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REINTEGRATION OF CROP-LIVESTOCK systems IN EUROPE:AN OVERVIEW

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Frontiers of Agricultural Science and Engineering 2021年第1期8卷 111-129页

作者： Antonius G.T.SCHUT Emily C.COOLEDGE Marc MORAINE Gerrie W.J.VAN DE VEN Davey L.JONES David R.CHADWICK Plant Production systems Wageningen University6700 AK Wageningenthe Netherlands School of Natural Sciences Bangor UniversityGwyneddLL572UWUK UMR 0951 INNOVATION French National Institute for AgricultureFood and Environment(INRAE)MontpellierFrance SoilsWest UWA School of Agriculture and EnvironmentThe University of Western AustraliaPerthWA 6009Australia Interdisciplinary Research Centre for Agriculture Green Development in Yangtze River Basin Southwest UniversityChongqing 400715China

Ongoing specialization of crop and livestock systems provides socioeconomic benefits to the farmer but has led to greater externalization of environmental costs when compared to mixed farming *** integration of crop and livestock systems offers great potential to rebalance the economic and environmental trade-offs in both *** aims of this study were to analyze changes in farm structure and review and evaluate the potential for reintegrating specialized intensive crop and livestock systems,with specific emphasis on identifying the co-benefits and barriers to ***,animals were essential to recycle nutrients in the farming system but this became less important with the availability of synthetic *** mixed farm systems can be economically attractive,benefits of scale combined with socio-economic factors have resulted in on-farm and regional specialization with negative environmental *** is therefore needed to reduce nutrient surpluses at farm,regional and national levels,and to improve soil quality in intensive cropping *** offers practical and cost-effective options to widen crop rotations and promotes the use of organic inputs and associated benefits,reducing dependency on synthetic fertilisers,biocides and manure processing *** agriculture goes beyond manure management and requires adaptation of both food production and consumption patterns,matching local capacity to produce with food ***,feed transport,greenhouse gas emissions,nutrient surpluses and nutrient losses to the environment can be *** is concluded that reintegration of specialized farms within a region can provide benefits to farmers but may also lead to further intensification of land *** approaches within a food system context offer alternatives for reintegration,but require strong policy incentives which show clear,tangible and lasting benefits for farmers,the environment an

关键词： circular agriculture coupled farming systems mixed farming specialised farming systems GHG

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LIGHT INTERCEPTION AND USE EFFICIENCY DIFFER WITH MAIZE PLANT DENSITY IN MAIZE-PEANUT INTERcropping

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Frontiers of Agricultural Science and Engineering 2021年第3期8卷 432-446页

作者： Qi WANG Zhanxiang SUN Wei BAI Dongsheng ZHANG Yue ZHANG Ruonan WANG Wopke VAN DER WERF Jochem B.EVERS Tjeerd-Jan STOMPH Jianping GUO Lizhen ZHANG State Key Laboratory of Severe Weather(LASW) Chinese Academy of Meteorological ScienceBeijing 100081China China Agricultural University College of Agricultural Resources and Environmental SciencesBeijing 100193China Wageningen University Centre for Crop Systems Analysis(CSA)Droevendaalsesteeg 16708 PB Wageningenthe Netherlands Tillage and Cultivation Research Institute Liaoning Academy of Agricultural SciencesShenyang 110161China Shanxi Agricultural University College of AgricultureTaigu 030800China

Intercropping increases crop yields by optimizing light interception and/or use *** intercropping combinations and metrics have been reported,the effects of plant density on light use are not well ***,we examined the light interception and use efficiency in maize-peanut intercropping with different maize plant densities in two row configurations in semiarid dryland agriculture over a two-year *** field experiment comprised four cropping systems,i.e.,monocropped maize,monocropped peanut,maize-peanut intercropping with two rows of maize and four rows of peanut,intercropping with four rows of maize and four rows of peanut,and three maize plant densities(3.0,4.5 and 6.0 plants m^(-1) row)in both monocropped and intercropping *** mean total light interception in intercropping across years and densities was 779 MJ·m^(-2),5.5%higher than in monocropped peanut(737 MJ·m^(-2))and 7.6%lower than in monocropped maize(843 MJ·m^(-2)).Increasing maize density increased light interception in monocropped maize but did not affect the total light interception in the *** years the LUE of maize was 2.9 g·MJ–1 and was not affected by cropping system but increased with maize plant *** LUE of peanut was enhanced in intercropping,especially in a wetter *** yield advantage of maize-peanut intercropping resulted mainly from the LUE of *** results will help to optimize agronomic management and system design and provide evidence for system level light use efficiency in intercropping.

关键词： dryland agriculture light interception light use efficiency maize-peanut intercropping semiarid

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