The results showed that the productivity, ecological and economic benefits were greatly raised in the new system.
三年试验结果表明，新系统显著提高了生产力、生态效益和经济效益。
The principle of "Alternating Engineering and Shade price" is applied to estimate the economic value of water conservation caused by forest ecological system.
采用水源调节“替代工程的影子价格”原理，计算了该地区森林生态系统的水源涵养经济价值。
Started with point of view of weeds treatment system, the combination of economic efficiency, ecological benefits, social benefits, the organic integration is realized.
在杂草治理中要从系统的观点出发，实现经济效益、生态效益、社会效益三者的有机结合。
应用推荐