摘要
以杨树—杨树烂皮病 (ValsasordidaNits )生态系统为研究对象 ,在杨树生长模型和杨树烂皮病流行模型的基础上 ,建立了杨树烂皮病危害的损失量模型和多维动态经济阈值模型。模拟了杨树—杨树烂皮病的系统动态 ,并根据杨树烂皮病常用的管理措施的防治效果 ,结合经济核算确定不同条件组合下的经济阈值 。
Taking poplar Valsa sordida Nits ecosystem as a research objict, based on poplar growth model and the model of Valsa sordide Nits epidemic, modeling of the damage of Valsa soldida Nits and the multi dementional dynamic economic threshold has been completed, and simulated dynamic of the system of poplar Valsa solcdida Nits According to control effect of common measures for Valsa sordida Nits, the economic threshold under different conditional combinations has been determined through economic accounting A strategic decision system of optimized control of Valsa sordida Nits has been set up
出处
《防护林科技》
2000年第1期23-25,共3页
Protection Forest Science and Technology
基金
黑龙江省科委项目 !(编号 :G96B0 5 0 7)
