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MULTI-OBJECTIVE PROGRAMMING MODEL OF tropical crops IN HAINAN ISLAND

Journal of Geographical Sciences 1994年第Z1期4卷 48-60页

作者： Zhou Zhaode(Department of Cultivation,South China College of tropical crops, Chanxian, Hainan 571700People’s Republic of China)Zheng Jianfei(Department of Agrometeorology,Bejing Agricultural University, Bejing 100094People’s Repulblic of China)

According to Hainan Island's biological characteristics, and existing structure of productivity of tropical crops and local climatic conditions, this paper carries on regional division of tropical crops by fuzzy mathematics. Based on calculation of basic parameters for tl1e formation of production, near-tem optimum models of tropical crops structure of each region was established by means of multi-objective programming, and a far-term grey programming model was set up through the above-mentioned near-term model and prediction of future parameters. Conclusion shows that the near-term programming may raise the profit by 5. 1-55.7 percent and far-tem programming by 54-90 percent, both gainingobvious economic benefits.

关键词： Hainan Island tropical crops multi-objective programming

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Overview of Production of Major tropical crops in Asian Countries in 2014

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Asian Agricultural Research 2017年第11期9卷 15-18页

作者： Jinhui WANG Chinese Academy of tropical Agricultural Sciences

On the basis of the FAO data,this paper analyzed the production,area harvested and yield of ten major tropical crops such as natural rubber,cassava and oil palm in Asian countries in 2014,in order to provide the basic... 详细信息

关键词： tropical crops Asian countries Overview of production International cooperation

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Resolving the Colletotrichum siamense species complex using ApMat marker

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Fungal Diversity 2015年第2期71卷 247-264页

作者： Gunjan Sharma Anil Kumar Pinnaka Belle Damodara Shenoy Microbial Type Culture Collection and Gene Bank CSIR-Institute of Microbial TechnologySector 39-AChandigarh 160036India Biological Oceanography Division CSIR-National Institute of OceanographyDona PaulaGoa 403004India

Colletotrichum gloeosporioides sensu lato has been associated with anthracnose in diverse commercial *** is now established that *** sensu lato comprises 33 phylogenetic species and *** sensu stricto is not a common pathogen of tropical *** this study,we investigated the phylogenetic relationships of 85 Colletotrichum isolates associated with select tropical fruits and flowering plants from *** the ApMat marker analysis,the 85 isolates clustered with 7 known Colletotrichum species(***,***,***,***,***,***,Glomerella cingulata ***)and six novel *** of the novel lineages is described and illustrated in this paper as Colletotrichum communis ***.,while new-host pathogen associations for ***,***,*** and *** are reported from *** of the 85 isolates analysed in this paper,73 isolates clustered within the *** species complex,indicating that *** species complex,not *** sensu stricto,is common on tropical *** comparison with act,cal,gapdh,ITS and tub2 gene markers,we recommend the use of the ApMat marker for accurate identification of cryptic species within the *** species *** believe that the ApMat marker,in combination with one or two similar‘phylogenetically superior’gene markers,is a better candidate for specieslevel classification of fungi that were traditionally identified as‘Colletotrichum gloeosporioides’.

关键词： Apn2/MAT IGS Ascomycota Pathogenicity testing Phylogeny tropical crops

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Exploring suitability for tropical crop cultivation in Hainan Island by SOTAL methodology

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Journal of Geographical Sciences 2001年第4期11卷 40-46页

作者： Zhang Xue-lei S.Mantel Zhang Gan-lin V.W.P.van Engelen Institute of Soil Science CASNanjing 210008China International Soil Reference and Information Centre AJ Wageningen353-6700Netherlands)

A SOTER-based automatic procedure for qualitative land evaluation is developed. This procedure was created in the automated land evaluation system (ALES). The objective was to design a procedure that allows for a quick separation of potentially suitable from non-suitable SOTER units for the intended land use, indicating constraints to different kinds of land use. Different kinds of land are unequal1y suited to various uses, land eva1uation is the assessment of the suitability of a tract of land for a specified kind of land use. In practice this implicates the comparison (matching) between the requirements of a specified land use and the properties of the land. Land evaluation concepts and definitions are treated in the paper. The ALES is a computer program that allows land evaluators to build their own knowledge-based system with which they can compute the physical and economical suitability of map units in accordance with FAO framework for land evaluation. The ALES program works with so-called decision trees, being hierarchical multiway keys in which the leaves are results (e.g., severity levels of land qualities), and the interior nodes of the tree are decision criteria (e.g., land characteristic values). These trees are traversed by the program to compute an evaluation using actual land data for each map unit. SOTAL is a SOTER-based qualitative model developed in ALES for physical land evaluation in which presently three land utilization types (LUTs) are distinguished, i.e., cultivated banana, coffee and rubber under different input and technological conditions. These LUTs are characterized by 11 landuse requirements and evaluated by matching the land use requirements with the corresponding land qualities. The paper elaborates on the criteria used in SOTAL for land quality assessment and how a final suitability rating is achieved on the basis of the rated land qualities. Results are visualized through G1S-generated maps as products in response to the specific inf

关键词： evaluation tropical crops HaiSOTER Hainan Island

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