Studies On Sustainable Precision Control Technology And Development Of WEB Database On Dominance Rangeland Glires In Gansu

This article lucubrate about glires fauna, rodent pest division in grassland area of Gansu, damage degree distinguishability,ecnomoic injury level analysis and accurately control technology for Plateau Pika as well as Web database construction for all glires of Gansu. The study result of this article as below:1. Studies on glires fauna of Gansu Province1.1 Heretofore, there are ninety species and thirty one sub-species of glires are distributed in Gansu Province, which are being subordinated to forty six genuses, thirteen sub-families, nine families, and two orders.1.2 Among two glires orders, Lagomorpha involve two familes and eleven species, Rodentia involve seven familes and seventy nine species. The Cricetidae and Ochotonidae are largest familes of glires in Gansu. The total eighty five species consist of thirty five species of Cricetidae, fifteen species of Muridae, fifteen species of Sciuridae, nine species of Ochotonidae, and eleven species of Dipodidae, which account for 94.4 percent of glires species and make up of the basic glires distribution in Gansu. Among four sub-familes of Cricetidae, Microtiniae has sixteen species and its dominant glires of Cricetidae.1.3 Among ninety species of glires, there are sixty species belong to Palaearctic realm, which account for 66.7 percent of Gansu glires species.there are seventeen species belong to Oriental realm, which account for 18.9 percent of Gansu glires species.The widely-distributed species has thirteen about 14.4 percent.2. Studies on Grassland Glires Pest Division in Gansu Province2.1 There are sixty eight species of rangland glires fauna in Gansu, which account for 75.6 percent of total glires species. Among these species, the population densities of most species are under economic damage degree and there are useful values for ecosystem. the population densities of about eighteen-twenty six species are ablove economic damage degree and dominant glires in different rangland type.2.2 The grassland rodent pests of Gansu province are compartmentalized five regions according to indicators of grassland rodent faunal component, zonation biology climate, zonation vegetation and thirteen subregions according to indicators of preponderant zonation grassland type, representative rodent distribution and dominant rodent species.3 Studies on damage degree for Plateau Pika(Ochotona curzoniae)3.1 There are five indicators of ground biomass, vegetation cover, damaged grassland area, rodent population density and active burrow number existed dissimilarity.The integrated evaluation system based on the five indictors can accurately evaluate harm degree of Plateau Pika.3.2 Through cluster analysis, the harm degree should be dividedⅠ—light harm,Ⅱ—moderate harm,Ⅲ—severe harm,Ⅳ—serious harm. It's also provided the quantified index for harm degree of Pika based on statistic analysis.3.4 The rank of different indictors on harm degree is: rodent population densityⅣ<Ⅰ<Ⅱ<Ⅲ, active burrow numberⅣ<Ⅰ<Ⅱ<Ⅲ, damaged grassland areaⅠ<Ⅱ<Ⅲ<Ⅳ,vegetation coverⅣ<Ⅲ<Ⅱ<Ⅰ, ground biomassⅣ<Ⅲ<Ⅱ<Ⅰ.4.Stuies on economic injury level(EIL) and theoretical control standard of Plateau Pika(Ochotona curzoniae)4.1 After investigation in field, there was positive correlation between the population of Pika, biomass loss and economic loss. correlation coefficient: r =0.9765;4.2 In the experiment area, the control cost of per unit area is 25.05 Yuan(RMB)/ hm2. The EIL for Pika had been confirmed 130 active burrow number/ hm2 in Apri.2008 in alpine meadow and grassland of Da Cha village,Sunan.5. Studies on precision control of rodenticides for Plateau Pika(Ochotona curzoniae)5.1The factors ranking of influencing control effect is: rodenticides> rodenticides concentration>bait amount>bait kind;5.2 The optimal testing combination was A2B3C2D3,which means the best control method was using Botulin D(0.15%), wheat as bait and 25 of bait amount in per active burrow.5.4 For Talon, The optimal testing combination was A2B1C1, which means Talon(0.01%), barley as bait and 5g of bait amount in per active burrow.5.5 For Bromadiolone, The optimal testing combination was A2B3C3,which means the best control method was using Bromadiolone (0.01%), wheat as bait and 3g of bait amount in per active burrow.6. Studies on WEB database for ecology information of glires in Gansu ProvinceBased on the study result of Gansu glires fauna of this article, ninety species of glires have been collested into the WEB dataase. Using ASP+SQL, IISWEB,B/S,metadata,data dictionary and so on which are all groupware of database to form the first groupware scheme for the Web database system. By requirement analyzing,concept structure designing,logical structure designing, physical structure designing and database function designing, data model for data,information and related material on ecology information of glires in Gansu Province.The WEB database has included five models, which are literature database, species information database, survey methodology database, control methodology database and forecast database.