2012 Vol. 2, No. 1

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Improvement and Application of Kriging Method for Ground Water Resource Risk Evaluation
Xu Yaping, Sun Tao, Zhou Bin, Song Wenhua, Zhang Liangyun, Li Hongliu, Han Bing
2012, 2(1)
Abstract(876) [PDF 1388KB](7)
Abstract:
Interaction of environmental management between groundwater and surface water is getting more and more important.An accurate and fast method to estimate the hydraulic permeability is the key of scientific management.In environmental management and planning，problems foced by managers in large scale.In the scale of a dozen even dozens of kilometers，original Kriging is way too complex to apply.This research was focused on simplify the Kriging under the principle of feasibility and flexibility.A risk estimation was deduced from the improved method.
Internet of Things and Wisdom Agriculture
Li Daoliang
2012, 2(1): 1-7.
Abstract(1242) [PDF 2772KB](24)
Abstract:
System framework and key technologies of agricultural internet of things were proposed from connotation of internet of things and wisdom agriculture.Policies and countermeasures to promote the development of agricultural internet of things in China were suggested，which based on the science analysis of current application of agricultural internet of things.
Development Tendency of World Agricultural Machinery from Agritechnica 2011
Xiao Lin, Xu Danhua
2012, 2(1): 8-13.
Abstract(903) [PDF 3393KB](12)
Abstract:
Agritechnica is the world′s top exhibition event for agricultural machinery，equipment and management.It is known as benchmark and bellwether for international agricultural machinery industry development.Staff analyzed and summarized by visiting Agritechnica 2011 that development trend of international agricultural machinery product was largescale，professional and intelligent，and biomass energy use had been more attention.The same time，technology development of major agricultural machinery products were briefly introduced，such as combine harvester，tractors，tillage planter，equipment for plant protection，and so on.It is proved a reference and guidance for development of China′s agricultural machinery industry.
Research Status and Development Trend of Rape Combine Harvester
Huang Xiaomao, Zong Wangyuan
2012, 2(1): 14-19.
Abstract(909) [PDF 2354KB](13)
Abstract:
Rape is an important cash crop，acreage and yield of which in China ranks first in the world.But the overall mechanization level in the cultivation of rape，especially mechanized harvest operations is seriously inadequate.Difficulties of rape mechanization harvest were analyzed，current research status of rape combines were reviewed，and development tendency was indicated.The conclusion is that only the idea to develop specific machine and the idea to improve varieties of rape are welled organized，persisting with agricultural and agronomic，can a highquality and efficient rape combine harvester with low energy cost really be developed，and the broad masses of farmers are willing to promote the use of tangible benefits.
Stability Analysis of Modified Wood Harvester Operation
Sun Zhibo, Liu Jinhao, Wang Dian
2012, 2(1): 20-23.
Abstract(1048) [PDF 1476KB](9)
Abstract:
Stability of modified wood harvester operation process was decided.Workingdevices of wheel loaders and wood harvester were modeled in solidworks，data of mass and gravity were achieved by model.Stability of modified wood harvester operation was evaluated based on the stability theory.Results showed that modified wood harvester could keep balance without any extra load during the working process.
Design and Experiment on Nondestructive Header of Energy Forest
Ding Xueyi, Qiu Zaoyang, Liu Tianshu, Dong Shiping, Ma Jiao, Zhou Shuhui
2012, 2(1): 24-27.
Abstract(840) [PDF 1362KB](10)
Abstract:
Energy forest as a renewable resource had gained more and more attention，and related harvester research had become a hot spot.The nondestructive header of energy forest cutting units was designed，with overall welded frame，double ring and sloping 8 degree angle between circular saw and horizontal plane，minimum location limit.This unit attached 4MG275type cotton straw harvesters by ZHONGNONGJI′s manufacturing can perform testing experiments.The test results showed that，under condition of saw cutting line speed in a certain set，leakage rate of cutting，broken stubble rate and stubble height were positive correlations with machine walking speed.Broken stubble rate than other models reduced by 1%-1.5%.
Application Research of New Crawler Track Chassis for Rice Combine Harvester
Liang Zhaoxin, Huang Hai, Zhang Yufeng
2012, 2(1): 28-31.
Abstract(1365) [PDF 1427KB](8)
Abstract:
A type of mechanical differential steering for rice combine harvester crawler chassis was described.The structure and working principle of the chassis was introduced.The rotating speed of driving wheel，the walking power of crawler track，gears，gearbox and other major components were designed.Then structural parameters，operating parameters and performance indicators were determined.By supporting rice harvester，chassis tests showed that rice harvester could achieve origin shift，and its back bending radius was only 5.825 m.And it also did not stop up by the mud，be good at paddy fields walking and suitable for the paddy fields which paddy mud depth is more than 200 mm.
Effectiveness Mechanisms and Key Link of Conservation Tillage Technology Application
Li Shechao, Zhou Liwei, Du Jun, Hao Chuntian, Chu Yuqin
2012, 2(1): 32-35.
Abstract(843) [PDF 1612KB](12)
Abstract:
Main results of conservation tillage were analyzed from five aspects，and obtained effects were analyzed from side of technical mechanism.Key technical issues of scale applications for conservation tillage were researched to practice.Further promotion of conservation tillage in Changchun city has certain significance.
Design and Implementation of Urban Forest Ecological Benefits Evaluation System Based on WebGIS
Gu Shoukuan, Liu Jinhao, Kan Jiangming, Wang Dian
2012, 2(1): 36-39.
Abstract(946) [PDF 1295KB](10)
Abstract:
Design and implementation of urban forest ecological benefits evaluation system were introduced based on webGIS.UFORE methods were used in this system to estimate ecological benefits of urban forest.The system showed the field data and the spacial data in detail with webGIS platform，and showed the statistics results and the evaluation results with thematic maps，gave us more beautiful humancomputer interface and more extendibility.The system improves level of urban forest management and accuracy rate of urban forest ecological benefits evaluation.
Application and Developing Prospect of Cloud Computation in the Agricultural Informationization
Cui Wenshun
2012, 2(1): 40-43.
Abstract(1399) [PDF 1650KB](14)
Abstract:
The supporting effect of cloud computation for agricultural internet of things and wireless broadband network were discussed，application and developing prospect of cloud computation in the agricultural informationization were prospected，It is of great value and sense to apply cloud storage to the information resources sharing domain of agriculture and cloud service to agricultural science technology information services.Problems in the development process of cloud computation were pointed.We should make scientific planning and decide according to actual needs.
Development of JPWZ-1type Micro Plant Factory
Shang Shouhai, Zhou Zengchan, Bu Yunlong, Lv Ke, Zhang Xiaohui, Li Dongxing
2012, 2(1): 44-47.
Abstract(1720) [PDF 1632KB](11)
Abstract:
In order to meet the needs of family gardening and planting，a micro plant factory for offices and houses was developed.Bringing in all technologies of largescale plant factory，the micro plant factory contained temperature and humidity control system，artificial lighting system and nutrient solution circle system，with which people could plant leaf vegetables in house.S7-200PLC，TPC7062K were used in micro plant factory automation system，and PID mode was also used in temperature and humidity precisely control.With the advantage of perfect function，handsome structure and convenience，people in cities could cultivate short-period，high-quality，non-pollution vegetables making use of micro plant factory.
Study of Sampling Conditions on the Elastic Modulus of Corn Straw
Wang Chunfang, Mao Ming, Pan Jinming, Yu Yong, Teng Bin
2012, 2(1): 48-53.
Abstract(772) [PDF 2110KB](10)
Abstract:
Elastic modulus is the key indicators during studying the mechanical properties of straw. Basing on quadratic orthogonal rotating combination experimental design scheme，this paper studied on combined effects on the elastic modulus of corn straw influenced by moisture content，leaf position and sampling locations.The results show that there is a significant effect on the elastic modulus caused by the oneorder of moisture content，while there is significant effect caused by twoorder of leaf position and sampling locations.In addition，there is also a significant effect caused by the interaction of moisture content ＆ sampling locations and moisture content ＆ leaf position.These influences were likely due to the internal structure of corn straw.
Physiological Function and Application of LCarnitine in Functional Food
Yang Jing
2012, 2(1): 54-59.
Abstract(988) [PDF 2238KB](9)
Abstract:
L-carnitine is a natural substance for human’s body，which can speed up the metabolisms in transferring fatty acids into energy and this way supports lose weight and relative functions.In this paper，chemical structures，physiological functions and application of L-carnitine in functional food were summarized.
Design of Minitype Flume for Simulation Experiment on Soil Erosion
Zhao Chunqing, Cai Chongfa, Ding Shuwen, Ding Shufang
2012, 2(1): 64-66.
Abstract(1312) [PDF 1041KB](11)
Abstract:
Method of mini-type flume for indoor simulation of soil erosion was introduced by design. This experimental equipment could be used for filling erosion experiment， flow characteristics experiment and of sedimentation of sheet flow， and ephemeral gully erosion experiment with hedgerow. Gradient could be adjusted in 1°， 5°， 10°， 15°， and 25°. Glow adjustment range was 0-0.2m3/min. And sediment concentration adjustment range was 0100 gL. Experimental equipment can provide some design ideas to design for largescale erosion and smaller erosion flume of soil engineering experiment design， and provide better service for indoor simulation of soil erosion.
Scientific Popularization Watersaving Irrigation Technique with Local Conditions
Zhou Rong
2012, 2(1): 67-69.
Abstract(805) [PDF 1140KB](11)
Abstract:
Combined with adaptability analysis of different irrigation techniques and practical experience in planting，watersaving irrigation technology choice should consider social benefits of watersaving and economic benefit of users.Scientific choice should be adapted to local conditions.Watersaving irrigation technologies must be integrated with national planting plan，national agricultural industry adjustment policies，and national urban development strategy.Choice of watersaving irrigation technology must be suitable for scale，mechanization and automation of agricultural development.
Harmony and Win-win between Ecological Restoration and Food Security
Ding Minwei, Bian Dahong, Cui Guomei
2012, 2(1): 70-72.
Abstract(1014) [PDF 1087KB](8)
Abstract:
Ecological restoration is important measures for ecological construction and sustainable development in China. And China faced with food security problems with social development. Relationship and problems between ecological restoration and food security were analyzed. Results showed that conversion of cropland to forest and food security was two aspects of the same issue，both were important. And solutions must be combined together to achieve common development of both，and to be win-win situation.
Design and Experiment of Side of Used Plastic Film Collector Machine
Ma Shaohui, Zhang Xuejun
2012, 2(1): 73-75.
Abstract(857) [PDF 881KB](7)
Abstract:
Whole design，operation principle and key device of side of used plastic film collector machine was introduced，The machine used to different growth periods of crops，from the outside edge of 20 mm plastic film harvesting works.It was mainly composed of part，childseedling shield unit，cut film device，shovel，nail tooth film roll and so on.Test showed that the machine clean recovery rate was 94.25%，for followup manual or mechanical recycling of remnant plastic film to create better working conditions.Equipment is easy to operate，and has high reliability.
Design and Improvement of Trash Rack of Mashi Hydropower Project
Jiang Kai
2012, 2(1): 76-79.
Abstract(1216) [PDF 1061KB](12)
Abstract:
This paper designed and replaced the six trash rack of Mashi hydropower project to solve the problems that the rack bars structures is of serious corrosion and lower strength.Through the improvement，the six trash rack have fulfilled the requirement of the cleaning machine.
Effects of Potash Fertilizer Amount on Rice Yield and Potash Use Efficiency in Coastal Salinealkaline Rice Growing Areas
Fu Lidong, Wang Yu, Li Xu, Sui Xin, Ren Hai, Li Baojun
2012, 2(1): 80-83.
Abstract(786) [PDF 1255KB](6)
Abstract:
Taking ‘Yanfeng 47’ as a case，effects of different potash fertilizer amounts on character，yield and potash use efficiency of rice were discussed with plot experimentsResults showed that appropriate amount of potash fertilizer could increase rice panicles and spikelets in per unit area，colony leaf area index and effective rate of leaf area，dry matter yield，and ratio of dry matter accumulation and grain yield after the full heading stage.Potash use efficiency and productivity were improved with appropriate amount of potash fertilizer，and then rice yield was increased.Suitable amount of potassium（K2O）was 67.5~90.0kg/hm2 in coastal salinealkaline rice growing areas.
Control Experiment of Different Insecticides on Wheat Sawfly
Feng Chengyu, Zhang Weigen, Chen Guiyao, Chen Zhongjun
2012, 2(1): 84-85.
Abstract(1092) [PDF 616KB](6)
Abstract:
Field experiments of different insecticides on wheat sawfly in wheat heading stage were carried out in 2010. The results showed that in the 3~4 instar larval height stage，when using chlorpyrifos 48% EC 600~900 g/hm2、phenthoate 50% EC 450~1 050 g/hm2、trichlorfon 98% crystal 750~1 500 g/hm2 and 4.5% Lambda-cyhalohrin EC 300~450 g/hm2，the control effect reached above 95% 16~40 h later. The variation analysis of the different processing methods were not significant.
Development Analysis of National Food Growing and Cattle Ranching
Liu Yingzong
2012, 2(1): 86-92.
Abstract(855) [PDF 2755KB](10)
Abstract:
The total output of national grain was volatility growth from 1951 to 2010，the volatility was caused by the fluctuation of grain planting，and the growth results from technology progress of grain grown.In 2010，the national food supply has been “the carry austral boreal grain”. Northeast region is the largest granary，followed by Huanghuai sea area，while grain yield per capita of the Yangtze River is only slightly higher than the national average.Cattle feeding based on crop residues has already been transferred from animal power production to beef and milk production though the per capita level is still very low.As for the future development of national food growing and cattle ranching，the goal is to achieve moderate yield of grain yield per capita，reasonable structure of grain production and right amount of cattle feeding based on crop residues，the realization way is scientific development of food growing and cattle ranching，comprehensive development of food growing and cattle ranching village，as well as correct principles and policies of development program.
Thoughts about Taking a New Road of Urbanization
Zhang Yinghong
2012, 2(1): 93-96.
Abstract(944) [PDF 1695KB](9)
Abstract:
In the rapid urbanization and urbanrural integration process，Beijing should go to a new peopleoriented urbanization.New urbanization has some features.In there，city has a reasonable spatial layout，farmers rights and interests are maintained，transient population can be treated well，industrial structure is optimized，ecofriendly city has been built，democracy and the legal system to be fully developed.
Problems and Measures on Regional Sustainable Economic Development in Rural Areas of Gansu Province
Wang Shenghua, Zhang Yanrong
2012, 2(1): 97-99.
Abstract(847) [PDF 1503KB](6)
Abstract:
Since the reform and opening，Gansu province rural regional economy made certain development. But due to a variety of factors，Gansu province rural regional economy development situation is not optimistic.This paper analyzes the Gansu province rural regional economy development present situation and the existing problems，starting from the concept of sustainable development，this paper expounds the related measures to promote the sustainable development of Gansu province rural regional economy.
Review about Science and Technology Policy of Forestry
Mei Yangyang, Chen Yongfu, Qin Bangkai, Zou Pingting
2012, 2(1): 100-103.
Abstract(648) [PDF 1561KB](8)
Abstract:
Only by establishing a sound science and technology policy of forestry，can ensure the sustainable development of forestry.This paper puts forward pertinencely the suggestions to promote the development or forestry through the study of science and technology policy of forestry.It talked about the study of policy in science and technology，discussed the definition and extension of forestry technology policy and problems of technology policy of forestry.The current research was divided into the micro and macro study from the perspective of the researchers. It pointed out that forestry science and technology policy research in China was still at the surface of the research.It is an exploratory research to discuss the growth mechanism of promoting the development of forestry industry，scientific strategy and forestry policies，etc.
Theories，Practices and Enlightenments from Foreign Developments of Industrialization，Urbanization and Agricultural Modernization
Xu Zhihua, Mao Lihua, Pan Weibing
2012, 2(1): 104-110.
Abstract(766) [PDF 3061KB](7)
Abstract:
Based on extensive literature research，this paper studies a series of foreign theories related to industrialization，urbanization and agricultural modernization in the first place，including the urbanrural compostion theory of Marxism，the dualistic structure theory of development economics，the spacial overall arrangement theory of regional economics.Then，the foreign evolution processes of two urbanization inclinations and two urbanrural relationship tendencies are analyzed.Afterwards，experiences and methods from British，America，Israel and Korea′s new countryside construction，Norway′s push on urbanrural harmonious development，Holand′s support on agriculture production chain，Canada′s rural coordination partnership project and Japan′s integrated development plan，which all motivate rural and agricultural development，are summarized.The enlightenments include：choosing the most persuading analytical framework，making correct theoretical assumptions，grasping the main line of realizing benefit integration and balance，choosing appropriate synchronic developing pattern，route，mechanism and policies.
Simulation of Nutrients from an Agricultural Watershed in Japan Using the SWAT Model（Extracts）
T Kato, H Somura, H Kuroda, H Nakasone
2012, 2(1): 111-114.
Abstract(767) [PDF 1579KB](6)
Abstract:
The Soil and Water Assessment Tool（SWAT）model was applied to the Yamada River watershed to investigate the potential for using the model for watersheds characterized by circular irrigated paddy and livestock production systems in Japan.The Yamada River watershed，a typical mosaic land use in an agricultural watershed in the Ibaraki Prefecture，includes small valleys；where the paddy fields with a circular irrigation system are located along the river on lowlands and a forest，vegetable fields，and livestock barns are located in the surrounding uplands.The runoff characteristics were significantly different between the irrigation and nonirrigation periods in the study site，and the observed runoff was well simulated using the SWAT model by setting different parameters for the irrigation and nonirrigation periods.The NashSutcliffe coefficient，coefficient of determination，and relative error statistics were 0.86，0.87，and 2.0% for the irrigation period and were 0.67，0.68，and 2.6% for the nonirrigation period.However，the observed nutrient concentrations were not simulated well.The ENS and r2 values were very weak and the RE values were not satisfactory.Improved estimates of storage nutrients in the vegetable fields and livestock wastes should be considered for further SWAT simulation，as well as improved algorithms for simulating rice paddy systems.
Yang Suicai, Sun Zhansheng
2012, 2(1): 115-118.
Abstract(592) [PDF 1959KB](7)
Abstract:
Wang Yanhong, Li Mingming
2012, 2(1): 119-120.
Abstract(1119) [PDF 1066KB](8)
Abstract:
Wang Yanhong
2012, 2(1): 121-122.
Abstract(576) [PDF 1015KB](7)
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Zhu Lihao
2012, 2(1): 123-124.
Abstract(646) [PDF 868KB](6)
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Pu Lianying
2012, 2(1): 125-125.
Abstract(883) [PDF 462KB](7)
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2012, 2(1): 134-134.
Abstract(585) [PDF 490KB](7)
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2012, 2(1): 136-136.
Abstract(740) [PDF 427KB](7)
Abstract:
2012, 2(1): 137-137.
Abstract(814) [PDF 460KB](7)
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