这本书有一章关于森林的很好的序篇。

This book includes a good introductory chapter on forests.

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各国在林业领域做出的承诺被正式写进“森林原则”及第21世纪议程第11章。

The 'forest Principles' and Chapter 11 of Agenda 21 enshrine the commitments made by nations in the forestry domain.

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第三章，森林环境价值评价方法及应用。

Chapter three: summed up and commented on the main methods of forest environmental value evaluation.

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