The Survey Of The Occurrence Of Moths And The Construction Of The Early-Warning Index System Of Holcocerus Hippophaecolus Hua Chou,Fang Et Chen In Hippophae Rhamnoides Linn. Plantation

Hippophae rhamnoides Linn is the pioneer specie for preventing windstorms and fastening sand in the land. It is the important biological resource for the economic development and the maintenance of biological diversity. The relationship between biodiversity and ecosystem stability are inseparable. Moths as an important part of the ecosystem, easy to be collected and sensitive to environmental change.Therefore, studying the biodiversity and occurrence of moths under lamp in Hippophae rhamnoides Linn shrub is very important for its maintenance in ecosystem balance and biodiversity conservation. In order to study biodiversity and occurrence of moths, this study chose the Hippophae rhamnoides Linn shrub in Jianping country in Liaoning Province and the Hippophae rhamnoides Linn. Plantation in Shanxi University test plots. Aimed the important pest that harmed trunk and root-Holcocerus hippophaecolus Hua Chou, Fang et Chen, collecting and statisticing the occurrence data, setting up the early-warning index system of Holcocerus hippophaecolus Hua Chou, Fang et Chen, calculating the value of the integrated early warning indicator and applying it to the early-warning index system of Holcocerus hippophaecolus Hua Chou, Fang et Chen of Hippophae rhamnoides Linn. Plantation in Shanxi Agricultural University. By calculating the value of its integrated early warning indicator, putting forward relevant warning level, providing quantitative forecasting and warning results for the prevention and control of Holcocerus hippophaecolus Hua Chou, Fang et Chen. The main contents and results are as follows:(1) The moth under lamp species of Hippophae rhamnoides Linn. Plantation in Shanxi Agricultural University was very abundant. Through investigation we collected a total of 2948 moths, the collected specimens belonging to 22 families,78 species based on a preliminary identification; The moths under lamp community dynamic changes of Hippophae rhamnoides Linn. Plantation both in the number of groups, the number of individuals or in the number of species were essentially manifestations of August> July> June> May> September> October in growth and decline;The analysis moths under lamp community similarity in different months showed that July and August had high similarity, the similarity July and October of was small.(2)The moths under lamp diversity index changed with the change of time. The trend of Shannon-Wiener diversity index (H’) was consistented with the trend of richness (E), in contrast with the trend of evenness index (J).(3) The construction of the early-warning index system of Holcocerus hippophaecolus Hua Chou, Fang et Chen:the choose of indicators:indicators based on the biology and ecological characteristics of Holcocerus hippophaecolus Hua Chou, Fang et selecting risky resource, risky sign, risky case three indicators layer with 10 indicators related respectively; According to the factors that affect Holcocerus hippophaecolus Hua Chou, Fang et Chen disasters determining its value, the value range form 0-1; The standard of warning alarm level as follows:Yhght police: Y<2/5Ymax;Ymedium police:2/5Ymax≤Y<3/5Ymax;Yweight police:3/5Ymax≤Y<4/5Ymax;Yhuge police:Y>4/5Ymax(4) The next disaster of Holcocerus hippophaecolus Hua Chou, Fang et Chen in Jianping country, Liaoning Province and the Hippophae rhamnoides Linn. Plantation in Shanxi Agricultural University will be the heavy alert and middle alert respectively.(5) The construction of the early-warning index system of Holcocerus hippophaecolus Hua Chou, Fang et Chen had the guidance and methodology value for the construction of other borer pests early-warning index system.