Modeling nitrogen cycling in studying farmland ecosystem has been an important tool and has been paid much attention.
农田生态系统中的氮循环是影响农业生产力的主要因素之一，同时也会对环境产生影响。
The modeling object is the food chain in grassland ecosystem which is a representative one.
该模型采用比较典型的草原生态系统中的食物链作为建模对象。
The main research progress in China and oversea on system analysis and modeling for rice, soybean, alfalfa and their main insect pest ecosystem is surveyed.
本文综述了水稻、大豆、苜蓿三大作物及其主要害虫的系统分析和模拟模型在国内外的主要研究成就。
The main research progress in China and oversea on system analysis and modeling for rice, soybean, alfalfa and their main insect pest ecosystem is surveyed.
本文综述了水稻、大豆、苜蓿三大作物及其主要害虫的系统分析和模拟模型在国内外的主要研究成就。
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