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Sustainable Intensification and Large-scale Operation of Cultivated Land Use at the Farmers’ Scale:A Case Study of shandong Province,china

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Chinese Geographical Science 2024年第1期34卷 149-167页

作者： LI Li LYU Xiao ZHANG Anlu NIU shandong PENG Wenlong School of Public Administration Huazhong Agricultural UniversityWuhan430070China Department of Geography University of ZurichZurich8057Switzerland School of Humanities and Law Northeastern UniversityShenyang110169China School of Geography and Tourism Qufu Normal UniversityRizhao276800China

Sustainable intensification of cultivated land use(SICLU) and large-scale operations(LSO) are widely acknowledged strategies for enhancing agricultural ***,the existing literature has faced challenges in precisely defining SICLU and constructing comprehensive indicators,which has hindered the exploration of factors influencing LSO within the SICLU *** address this gap,we integrated self-efficacy theory into the design of an index framework for evaluating *** subsequently employed econometric models to analyze the significant factors that impact *** findings reveal that SICLU can be divided into four key dimensions:intensive management,efficient output,resource conservation,and ecological environment ***,it is crucial to incorporate belief-based cognitive factors into the index system,as farmers’ understanding of fertilizer and pesticide application significantly influences their willingness to engage in ***,we identify grain market turnover as the most influential factor in promoting LSO,with single-factor contribution rates reaching 70.9% for cultivated land transfer willingness and 62.5% for the total planting ***,unlike irrigation and agricultural machinery inputs,increased labor inputs correspond to larger planting areas for *** trend may be attributed to reduced labor availability because of rural labor migration,whereas the reduction in irrigation and agricultural input is contingent on innovations in production practices and the transfer of cultivated land management ***,SICLU dynamically influences LSO,with each index related to SICLU having an optimal range that fosters *** insights offer valuable guidance for policymakers,emphasizing farmers as their central focus,with the adjustment of input and output factors as a means to achieve LSO as the ultimate *** conclusion,we propose research avenues for further enriching the SICLU framework to ensur

关键词： sustainable intensification of cultivated land use(SICLU) self-efficacy status quo bias input and output Boosted Regression Tree willingness to transfer cultivated land cultivated land planting areas shandong,china

Mutual Conversion of Land Use between Urban and Rural Area in the Process of Urbanization: A Case Study of shandong Province

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Chinese Journal of Population,Resources and Environment 2007年第2期5卷 93-96页

作者： Xu Hong College of Population, Resource and Environment, shandong Normal University, jinan shandong 250014, china College of Population Resource and Environment Shandong Normal University Jinan Shandong 250014 China

Urbanization is one of the driving forces for the land use change in type and structure, and its prominent effect is to convert rural land to urban land. This paper takes Shan-dong Province as an example to analyze the current situation of the mutual conversion between the urban and rural areas from the aspects of the structure of land use, the decreasing tendency of the cultivated land, the changes of land use in urban and rural residential areas. It points out that cultivated land is converted to residential area land, industrial and/or mining area land. The relationship between the urban area land and the cultivated land is more direct; meanwhile, the changes of rural residential area lag behind obviously. The decrease of the cultivated land and the decline of soil quality will be the two difficult problems in the process of urbanization.

关键词： mutual conversion of land use between urban and rural areas structure of land use flow of the cultivated land

Multiple Effects of Energy Issues and Countermeasures: A Case of shandong Province

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Chinese Journal of Population,Resources and Environment 2008年第4期6卷 88-94页

作者： Wang Chengxin1,2 , Wang Gefang3 , Yao Shimou4 1. College of Population, Resources and Environment, shandong Normal University, jinan shandong 250014, china 2. Research Center of Cycle Economy of shandong Province, jinan shandong 250001, china 3. Party School of the shandong Committee of CPC, jinan shandong 250021, china 4. Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing Jiangsu 210008, china College of Population Resources and Environment Shandong Normal University Jinan Shandong 250014 China Research Center of Cycle Economy of shandong Province Jinan Shandong 250001 China Party School of the shandong Committee of CPC Jinan Shandong 250021 China Nanjing Institute of Geography and Limnology Chinese Academy of Sciences Nanjing Jiangsu 210008 China

Energy is now becoming the bottleneck of urban and regional development. The paper takes shandong Province, one of the most energy consuming provinces in china, as an example, uses quantity methods such as SPSS (Stastics Package for Social Science) cluster sampling and regression analysis, and applies quantity analysis, to analyze the situation of energy issues in shandong province. The conflicts between the quick industrialization and increasing extensive economic development, between urban population and energy consuming per head, between the infinite energy consuming desire and the low level of managing system, and between the unstable world energy supply and the limited energy storage in china are the main factors of energy crisis in shandong, which not only results in energy shortage, but also becomes the barrier of economic and social development. In order to ensure sufficient energy supply for shandong province in the 21st century, we should take countermeasures, such as changing the economic development model, pursuing a multiple and high quality energy strategy, improving the intensive urbanization strategy, and building a scientific energy system.

关键词： energy effects countermeasure shandong Province

Countermeasures for Implementing Sustainable Development Strategy in shandong,china

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中国人口·资源与环境：英文版 2004年第4期2卷 57-60页

作者： Cui Jianhai Office of Countryside & Society Development, Department of Science and Technology of shandong Province, jinan 250014, shandong china Office of Countryside and Society Development Department of Science and Technology of Shandong Province Jinan Shandong 250014 China

This paper set forth the goals of implementing sustainable development strategy in shandong Province guided by the view of scientific development of being people oriented, comprehensive, coordinated and sustainable. Based on the target of sustainable development strategy in shandong province this paper discusses the main tasks in the sustainable development strategy Countermeasures for sustainable development strategy in shandong province are put forward.

关键词： countermeasures sustainable development shandong province population resources environment

Study on sea water intrusion into palaeochannels on south coastal plain of the Laizhou Bay by the Bohai Sea

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Acta Oceanologica Sinica 2003年第1期22卷 69-74页

作者： Han Mei Geography Department, shandong Normal University, jinan 250014, china Geography Department Shandong Normal University Jinan 250014 China

The palaeochannel evolution in the study region is divided into four stages by such methods as 14C dating. Sea water intrusion through palaeochannels has been studied as a focal point. Palaeochannels are the main passageways through which the sea water intrudes at a higher speed, through many means and in a changeable dynamic state.

关键词： Palaeochannel sea water intrusion south coastal plain of Laizhou Bay

Study on activated carbon in chromium-containingwastewater treatment by XPS

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Journal of Environmental Sciences 1994年第2期6卷 173-179页

作者： Yang Jun Wang Yunxiu(shandong University of Technology,jinan 250014, china)Zhang Yinsheng(shandong Non-Metallic Material Research Institute,jinan 250014, china)

The mechanism of activated carbon treatment with chromium-containing wastewater byX-ray photoelectron spectroscopy (XPS) and that of adsorption and reduction reaction of the acti-vated carbon with hexavalent chromium solution are presented in this paper. The XPS results showthat at PH6,the main process is adsorption of the car-bon to Cr(VI). The optimum range of treatment is at pH 3-6,in which removal efficiency ofadsorption and reduction is relatively high. It demonstrates that the reduction mechanism is aheterogeneous acid catalysis process.

关键词： wastewater treatment X-ray photoelectron spectrometry activated carbon.

A note on a result of Abercrombie

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Chinese Science Bulletin 1997年第14期42卷 1151-1154页

作者： ZHAI WenguangDepartment of Mathematics, shandong Normal University, jinan 250014, china Department of Mathematics Shandong Normal University Jinan China

SUPPOSE θ∈[1,+ ∞) is any real number. The sequence B_θ={[nθ]|n∈N}is calledBeatty’s sequence determined by θ. Beatty sequences have been the subject of intensive inves-tigation in recent years on account of the... 详细信息

关键词： Bealty’s sequence divisor problem rational approximation.

The optical near-field speckles and their first order statistics on the basis of the integral equations of electromagnetic field

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Science china(Physics,Mechanics & Astronomy) 2004年第3期47卷 365-380页

作者： CHENG Chuanfu1, 2, SONG Hongsheng2, LIU Chunxiang2, REN Xiaorong2, ZHANG Ningyu3, TENG Shuyun1 & XU Zhizhan1 1. Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, P. O. Box 800-211, Shanghai 201800, china 2. Department of Physics, shandong Normal University, jinan 250014, china 3. shandong Institute of Architecture and Engineering, jinan 250014, china Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghaichina Department of Physicsshandong Normal Universityjinanchina shandong Institute of Architecture and Engineeringjinanchina

From Helmholtz equation of the harmonic electromagnetic waves, the integral equations of the light field at the medium boundaries are obtained by use of the Green's theorem and are discretized into linear equation set with the values of the light field and its derivative as the unknowns. On solving the linear equation set, we realize the rigorous computations of the light fields at the boundaries. Then the intensities of the light waves scattered by the random self-affine fractal surfaces in the optical near-field are calculated, and the propagation characteristics, the evolutions of the contrast and the intensity probability density function of the near-field speckles are studied in detail. The near-field speckles are much different from the conventional speckles in the diffraction regions and in the imaging systems. There are obvious local fluctuations in the intensity distributions of the near-field speckles and such fluctuations disappear after propagating a distance of one wavelength from the medium surfaces. For the random surfaces with smaller lateral correlation lengths, the speckle contrasts approach the saturation values and the speckle fields approach Gaussian distribution within the near-field, while for the random surfaces with larger lateral correlation lengths, such evolutions become comparatively slow.

关键词： speckle, near-field optics, first order statistics, Green's function.

Reciprocal sums of a class of additive functions in short intervals

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Chinese Science Bulletin 1997年第2期42卷 102-105页

作者： ZHAI WenguangDepartment of Mathematics, shandong Normal University, jinan 250014, china Department of Mathematics Shandong Normal University Jinan China

USING the method of probabilistic number-theory, De Koninck, and De Koninck and Galambos studied the reciprocal sum of the additive function f（n） satisfying f（n）≥t0>0 （n≥2） and f（p）≡1 and obtained an asymptotic formula, where t0 is an absolute positive constant. Let B（x） denote the number of n≤x not satisfying the inequality loglogn-R（x）≤f（n）≤loglogn+R（x）, （1） where R（x） is a function tending to infinity. Then in refs. [1, 2], it is proved that if R（x）=o（loglogx） and B（x）=o（x/loglogx）,

关键词： additive functions Riemann zeta-function asymptotic formula.