指出土地整理的出发点应基于生态系统原理（时间、位置、物种、干扰和景观） ，核心是实现整理区生态系统的良性循环。
The ecological system principle and reason that should follow in the land consolidation and rehabilitation are analyzed in this paper.
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。
The principle of "Alternating Engineering and Shade price" is applied to estimate the economic value of water conservation caused by forest ecological system.
非线性原理即熵定律分析人类生态系统中能量流动；
Analysing the energy flow in human ecosystem with unlineal principle(entropy law).
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