Based on the actual situation in the upper reaches of minjiang river , the main assessment factors such as strata structure , landform , vegetation covering eco - environment , surface water , ground water , agrotype and geological hazard are selected in this paper 本文根据岷江上游的实际情况选取岩性构造、地形地貌、植被覆盖生态区、地表水、地下水、土壤类型及地质灾害等因素作为评价因子。
Therefore , it is necessary to find out the current situation of eco - environment geology in the upper reaches of minjiang river and assess its quality in order to put . scientific reference for land planning and reasonable utilization and macroscopical management of land resources 因此，有必要岷江上游的生态环境地质现状并对其质量进行评价，为国土规划和国土资源的合理开发利用与宏观管理提出科学依据。
Leshan shanwan hotel is a three - star tourist hotel located in the leshan tourist sceinc spot , from which can look to the leshan city across mingjiang river . with the distance to leshan city : 2km , to emei mount : 30km and 4km away from leshan buddha 山湾宾馆是一家三星级旅游饭店，地处乐山大佛旅游风景区，隔岷江与乐山城眺眺相望。距乐山市区二公里，离世界自然与文化遣产的峨眉山三十公里，与世界第一大佛乐山大佛仅四公里。
The myth , legend and stories about " poison cats " are prevailing in the upper minjiang river valley . the research , gathering , arrangement and analysis of local narrative texts about " poison cats " are conducive to a further understanding of local culture in the upper minjiang river valley 岷江上游普遍流传着关于“毒药猫”的神话、故事与传说,对这些乡土叙述文本进行调查、收集、整理、分析,有利于深入了解岷江上游地区独特的地方性文化现象。
Zipingpu hydraulic key project is located at shajinba reach , upriver of minjiang river , being built for agricultural irrigation and civil water supply . it also has integrative benefits such as preventing flood , generating electricity , environmental protection and tourism 紫坪铺水利枢纽工程位于四川省成都市西北60km的岷江上游沙金坝河段，是一座以农业灌溉、城市供水为主，兼有防洪、发电、环境保护、旅游等综合效益的水利工程。
According to the degradation situation of the ecosystem and human activities fresures , in this paper , countermeasures for restoration and repair of degraded ecosystem are suggested , and new idea are provided for ecological protective screen construction in multi - ethnic areas of the upper reaches of minjiang river 本文根据生态环境退化的现状和人为活动的特点，提出了生态环境恢复和整治的对策，为岷江上游民族地区生态屏障的构建提出新思路。
Abstract : the happenning process and cause as well as causing catastrophy of muddebris flow were anlysissed and evaluated based on sitting inspect and visit of minjiang longtanbao muddebris flow . the proposal of reducing and defencing catastrophy and protecting ecological envirenment 文摘:通过岷江龙潭堡泥石流现场考察、访问，对这次泥石流的发生过程及造成的灾害进行分析和评价，对泥石流发生的原因做出初步分析，并提出减灾、防灾、保护生态环境的建议。
( 5 ) by analyzing the terrace in the lacustrine sediment of the ancient barrier lake , diexi , minjiang river , forming of the terrace is not only because of the intermittent arising of the tectonic movement , but also because of descend of the eroding normal covering resulting from destroying of the barrier lake ( 5 )通过对岷江叠溪古堰塞湖湖相沉积中的河流阶地分析可知，阶地的形成不仅仅是由于新构造运动的间歇性抬升作用，由于堰塞湖的溃决引起洪水下泄，导致河流侵蚀基准面的下降也可以形成阶地。
Soil ph value ranged from 6 . 0 to 7 . 2 , the ph value had no markedly difference among the three horizons in each plot , and so did that among seven types of forest . the organic matter content in horizon a of plot g2 ( coniferous forest ) was the highest ( 193 . 03a kg - 1 ) in seven plots and the lowest one was in plot g3 另外，在3个固定样地内( g _ 1 、 g _ 2 、 g _ 3 ) ，通过埋袋试验，研究了白桦枝条、白桦凋落叶、岷江冷杉凋落叶等3类典型凋落物在3个不同埋藏深度土壤中的分解。
By studying the ancient barrier lake sediments , this paper mainly probes into the ancient climate evolution rule of more scale and less from twenty - two thousand to ten thousand years before present , diexi , minjiang river . moreover , influences to lower reaches of minjiang river is simply discussed because of die out of the ancient barrier . the using correlative theories in this thesis are mc chronology , sedimentology , isotope geology , environmental geology , geomorphology 本论文运用~ ( 14 ) c年代学、沉积学、同位素地质学、地貌学等学科的有关理论，通过对岷江叠溪古堰塞湖湖相沉积物的研究，采用沉积物碳酸盐碳氧同位素等多环境代用指标，研究岷江叠溪地区距今约22千年10千年古气候演化规律，讨论了古堰塞湖形成演化过程与地质环境的相关性。
