| Chang'an city is one of biggest cities at that time, it had an aera of 84 square kilometers, which was Chang'an city of Hart dynasty 2.4 times, ancient Roman city 7 times. So grand city of scale of construction, before the times giving first place to wooden structure building, be going to fell a lot of trees, to annihilate a lot of forest. The what forest cover and natural environment using material to expect that starting, building in large scale by the fact that quantitative analysis studying, explaining Chang'an city concretely to the periphery come into being trying to construct a building from wood affects the main body of a book.The main body of a book include introduction five parts in total:1. Introduction: Be the main body of a book the very important part, has set forth the main body of a book purpose studying, object of study and research method, has been to have expounded the feasibility that the quantify being in progress to Chang'an wooden structure building studies first, has been to study structure has built an ideal pattern then, the research making copy of the first edition be in progress impossibly becomes possibility, and oversimplifies to the full with the person.2. The first chapters: The summarizes of Chang'an wooden structure building. The characteristic that the wooden structure discussing Tang Dynasty first builds, points out wooden structure Tang Dynasty building gimmick and slab not by some future generations, that these gimmick and the component study an acquaintance to the main body of a book quantization is essential. Second, the structure building divides into the palace, office, temple, product government official house, the common people house almost resemble.3. The second chapter: The system of wooden structure building in Tang Dynasty. If existence builds a modulus Tang Dynasty is made, this is the main body of a book use material to carry out the question that quantization studies to Chang'an wood structure building. Originally, the chapter builds wooden structure Tang Dynasty losing the reality existing measuring a data and Northern Song Dynasty "Ying Zao Fa Shi " recording the contrast being in progress, reach the conclusion that the modulus there existing a building in Tang Dynasty makes, and point out further: Build modulus system in Tang Dynasty as Song Dynasty "Ying Zao Fa Shi" middle records.4. The third chapters: Quantitative analysis of wooden structure buildings in Chang'an city of Tang Dynasty. This part chooses two places of buildings in first Tang leaving underground and the two places nonlocal in the late Tang dynasty. Amounts are in progress here to holding the Chang'an wood structure of all kinds building's for the first time on the basis, from the structure angle and the courtyard angle with material estimate that.5. The fourth chapters: The building uses an impact of material over Chang'an county periphery forest and environment. The calculation bear fruit from at the head is it can be seen, the forest using the Chang'an county periphery with large amount of felling of material accepts a building grave destroy, worsening, river leading to Chang'an county environment all around then the water yield going up overflows the sign. It lead environment all around to Worsen. Accordingly come to a conclusion: Enormous that Chang'an county city builds in large scale uses material to expect that causing immense effects on periphery forest cover, that wood constructs a building is the forest formidable enemy. |