CHANGE OF NUTRIENT IMPORT AND EXPORT IN PROCESS OF RAINFALL IN AILAO MOUNTAIN OF YUNNAN PROVINCE

ＣＨＡＮＧＥ　ＯＦ　ＮＵＴＲＩＥＮＴ　ＩＭＰＯＲＴ　ＡＮＤ　ＥＸＰＯＲＴ　ＩＮ　ＰＲＯＣＥＳＳ　ＯＦ　ＲＡＩＮＦＡＬＬ　ＩＮ　ＡＩＬＡＯ　ＭＯＵＮＴＡＩＮ　ＯＦ　ＹＵＮＮＡＮ　ＰＲＯＶＩＮＣＥＧａｎＪｉａｎｍｉｎ（甘健民）；ＸｕｅＪｉｎｇｙｉ（薛敬意...     

WATER QUALITY ANALYSIS AND ASSESSMENT OF RIVERS IN JILIN PROVINCE OF CHINA

ＷＡＴＥＲＱＵＡＬＩＴＹＡＮＡＬＹＳＩＳＡＮＤＡＳＳＥＳＳＭＥＮＴＯＦＲＩＶＥＲＳＩＮＪＩＬＩＮＰＲＯＶＩＮＣＥＯＦＣＨＩＮＡ￥ＷａｎｇＪｕｎ（王俊）ＺｈａｏＢａｏｚｈｏｎｇ（赵宝中）（ＤｅｐｏｒｔｍｅｎｔｏｆＥｎｖｉｒｏｎｍｅｎｔＳｃｉｅｎｃｅ，Ｎ...     

COORDINATING DEVELOPMENT OF AGRICULTURAL RESOURCES AND ENVIRONMENT OF THE TROPIC REGION IN YUNNAN PROVINCE

（姚建衢）（杨焕宗）ＣＯＯＲＤＩＮＡＴＩＮＧＤＥＶＥＬＯＰＭＥＮＴＯＦＡＧＲＩＣＵＬＴＵＲＡＬＲＥＳＯＵＲＣＥＳＡＮＤＥＮＶＩＲＯＮＭＥＮＴＯＦＴＨＥＴＲＯＰＩＣＲＥＧＩＯＮＩＮＹＵＮＮＡＮＰＲＯＶＩＮＣＥ￥ＹａｏＪｉａｎｑｕ（Ｉｎｓｔｉｔｕｔｅｏｆ...     

GULLY—SPECIFIC DEBRIS FLOW HAZARD ASSESSMENT IN CHINA

Techniques of gully-specific debris flow hazard assessment developed in four periods since the end of the1980s have been discussed in the present paper. The improvement for the empirical assessment method is the sectional-ized function transformation for the factor value, rather than the classified logical transformation. The theoretical equationof the gully-specific debris flow hazard is expressed as the definite integral of an exponential function and its numericalsolution is expressed by the Poisson Limit Equation. Current methods for assessment of debris flow hazard in China arestill valid and practical. The further work should be put on the study of the reliability (or uncertainty) of the techniques.For the future, we should give a high priority to the relationship between debris flow magnitude and its frequency of occur-rence, make more developments of prediction model on debris flow magnitude, so as to finally reach the goal of assessingthe hazard of debris flow by theoretical model, and realize both actuality assessment and prediction appraisal of debris flow.     

THE ORIGIN AND CHARACTERISTICS OF THE GLACIAL DEBRIS FLOW IN THE DUKU HIGHWAY OF TIANSHAN MOUNTAINS，

ＴＨＥＯＲＩＧＩＮＡＮＤＣＨＡＲＡＣＴＥＲＩＳＴＩＣＳＯＦＴＨＥＧＬＡＣＩＡＬＤＥＢＲＩＳＦＬＯＷＩＮＴＨＥＤＵＫＵＨＩＧＨＷＡＹＯＦＴＩＡＮＳＨＡＮＭＯＵＮＴＡＩＮＳ，ＣＨＩＮＡ￥ＸｉｏｎｇＨｅｉｇａｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＧｅｏｇｒａｐｈｙ...     

REGIONAL TOURISM COOPERATION IN TRIANGLE ZONE OF LIAONING PROVINCE

Strengthening the regional tourism cooperation is the requirement of both tourism development and tourist competition drive. On the one hand, resources, products, market and infrastructure in tourism are characteristics of half-public goods, which are the externalities. On the other hand, tourism competition has evolved from individual scenic spot, or finn competition to regional competition, which also requires urgent regional tourism cooperation. In recent years, the regional economic cooperation has been becoming popular in the world. The triangle tourism zone of Liaoning Province, constituted by Shenyang, Dalian and Dandong, is the core region of Liaoning tourism system. This regional tourism cooperation has been raised for a long time, but has not made substantial progress as yet. In recent years, the strategic cooperation among them has been becoming urgent, along with the change of tourism competition models, as well as the desire for building a Northeast Asia tourist economy circle. Based on literature, this paper establishes a conceptual frame of regional tourism cooperation and applies it in the analysis of the strategic tourism cooperation of Liaoning Province＇s golden triangle zone. This paper firstly examines both qualifications and motives concerning with cooperation among the three cities, and believes that the biggest difficulties involve traditional ideas, administrative institutions, communications, economic performances, time constraints, and more overlap among their tourist markets. Then this paper continues to construct a cooperating mechanism, including participant arrangements, construction of operating mechanism and construction of assisting mechanism. At last, this paper proposes approaches to the strategic cooperation such as introducing Xiuyan County, strategic integration and developing differentiated and complemented tourism products.     

MODELING OF REGIONAL DIFFERENTIATION OF LAND-USE DEGREE IN CHINA

Thestudyonland--useandland--coverchangesbecomesmoreandmoreimPOrtantinglobalenvironmentchangeresearch.AglobalresearchplannamedLUCCwasfoundedbyIGHPandHIJPin1995andonecoreprojectplanandprojectocr-nmittee(CPPCmePELUCC)wasalsofounded.Aninternationalconferenceonland--useandland--coverchangeswasheldintheNetherlands.Inthisconference,fiveframequestions(IGBP,1996)andthreeresearchfocuses(IGBP,1996)havebeenproPOsed.Studyonland--useandland-coverchangesPOssessesanimPOrtantPOsitioninthefield…     

QUATERNARY GLACIATION SERIES ANDGLACIAL LANDFORM IN GONGWANG MOUNTAINS INNORTHEAST PART OF YUNNAN PROVINCE, CHINA

Therearemanyquaternaryglaciallandformsinalpineareasahave3100ma.s.1.intheGongWangMountainsinthenortheastpartofYunnanProvinceofChina.TheglaciationseriesandtheglaciallandformsoftheQuaternaryhaveoncebeencoveredinanarticlesketchily(Yietal.,1991).Onthebasisoffieldinvestigationsinrecentyears,we'11goastepfurthertodiscusstheQuaternaryglaciationseriesandtheglacierlandfo~sthereinthisPaper.I.TabsQU~ANANYG~W~TheGOngWangMountainsissituatedbetweentwobranchesoftheJinshaRiver,theXiaojiangandthePudu…     

CHANGE OF REGIONAL ECONOMIC DEVELOPMENT POLICY IN CHINA

After 40 years of painstaking work, much improvement has been made in regional difference. The road of that development, however, is by no means a smooth one, full of setbacks and failure. The past forty years may be roughly divided into four stages: 1.a stage of rehabilitation and large scale transition towards the interior( 1949-1959), 2. the dispersion stage with an emphasis on the construction of the interior (1960-1977), 3. a stage of moving back to the coastland and relative concentration of constructions of large scale industries (1978-1980), and 4. a stage of taking the coastland as the focal point for regional development (since 1981). Since the late 1970s, China began to carry out what is known as the Open-door policy. Great changes have taken place in regional development policy.     

VARIATION IN FLOW AND SEDIMENT OF DASHA RIVER AND INFLUENCE OF HUMAN ACTIVITIES ON IT IN SOUTHWEST REGION OF ANHUI PROVINCE

1INTRODUCTION Soil and water loss in the Dabie mountainous area is one of the most severe environmental problems in Anhui Province and the Changjiang (Yangtze) River basin as well.Itnotonlyresultsinenvironmentaldegradation,but alsorestrictstheproductionoflocalindustryand agricul- ture and hinders the sustainable economic and social de- velopment of the area, which has done great harm to the people's life and production there (XU, 2000; ZHANG and SHI, 2001). Since the 1980s, especial…     

西宁盆地泥石流类型及其防治意见

概略地叙述了西宁地区的泥石流形成条件和形成机理,并将西宁地区泥石流划分为稀性泥石流类及泥石质泥石流种类。在此基础上提出防治泥石流灾害的意见。     

Disasters and regional risks of debris flow in Zhaotong Prefecture,Yunnan Province,China

Zhaotong Prefecture has the area of 22,434km², where there are more than 330 debris flow ravines, with the average spatial density of 14.7 spots per 1,000km². According to the method of evaluation on the regional risk of debris flow, this study has come to the following conclusions: Qiaojia County-risk grade V; Yongshan, Yanjin, Ludian, Daguan, Weixin and Zhenxiong counties-risk grade III; Yiliang, Suijiang-Shuifu and Zhaotong City-risk grade II. Compared with the field investigation, the result is satisfied.     

牛眠沟流域泥石流形成条件、发展趋势及其防治探讨

汶川地震使牛眠沟流域变成了一个多泥石流灾害的区域,到目前为止,已经发生7次大规模泥石流灾害。经研究,该流域诱发泥石流灾害的3个基本条件非常发育,而目前正处于发展阶段,在震后5~10年内的雨季,极易发生危害性较大、冲击力较强的大规模降雨型泥石流。如果考虑直接利用主沟内沉积的泥石流堆积物,在主沟堆积区的中上游左右两侧修建约为沟宽一半的交替式拦挡土石坝、在中下游修建与沟宽大致相等的拦挡土石坝及在相邻两坝间修建与沟向相对且具有一定坡度斜坡的土木防治工程,可实现消能与耗能双重目的。     

中国南方区域地球物理及深部构造的若干特征

本文在分析区域重磁场的基础上，由重磁资料结合深部地震和大地电磁测深资料所得的莫霍面、居里面、磁性体顶面及上地幔低阻层顶面深度，探讨我国南方地区的岩石圈和地壳厚度变化以及地热构造和基底构造特征，从而阐述了全区各层次的深部地质构造特征。     

青海省东昆仑1:50万区化扫面方法总结

东昆仑是我省找矿重点地区之一,通过1:50万区域地球化学扫面,初步查明了各元素的分布特征,分散、富集规律,明确了找矿方向、目标矿种和重点找矿区段,为解决区内某些基础地质问题提供了地球化学资料。 本文较系统地介绍了东昆仑地区开展小比例尺区化扫面工作所采用的工作方法和资料综合研究整理思路。其中异常查证工作方法等已被证明是非常有效的,可作为今后开展类似工作的参考。     

秦岭北麓现代泥石流灾害活动周期的灰色预测

本文应用灰色系统理论,在对控制泥石流形成的内、外营力要素灰色关联度进行分析的基础上,分别建立了秦岭北麓现代泥石流灾害活动周期的长期、短期及近期灰色动态时间序列预测模型(GM),并进行了灰色灾变预测。结果表明,影响本区泥石流活动的主要因素是雨量强度,其次为地震活动性。并预测出本世纪后半叶泥石流灾害出现的年份为:1962,1966,1982,1988,1994～1995,前四次已与泥石流实际活动年份相符。近期泥石流活动期的预测,对泥石流灾害的预防有实用意义。     

基于兰利法的泥石流临界雨量实验研究

分析了目前泥石流临界雨量确定常用方法存在的问题 ,以及泥石流临界雨量实验研究中实验降雨量确定的随意性和盲目性 ,提出以兰利 ( Langlie)法为指导进行实验 ,使实验降雨量的确定有了理论依据 ,减少了取得可靠实验结果所需实验次数 ,从而使泥石流临界雨量实验研究更趋完善和可行     

ENERGY FLOW OF BELLAMYA AERUGINOSA IN A SHALLOW ALGAL LAKE, HOUHU LAKE (WUHAN, CHINA)

ＩＮＴＲＯＤＵＣＴＩＯＮＢｅｌｌａｍｙａａｅｒｕｇｉｎｏｓａｉｓａｇａｓｔｒｏｐｏｄｓｐｅｃｉｅｓｂｅｌｏｎｇｉｎｇｔｏＶｉｖｉｐａｒｉｄａｅ .Ｂｅｉｎｇａｄｅｔｒｉｔｉｖｏｒｅ,ｔｈｅｓｐｅｃｉｅｓｉｓｃｏｍｍｏｎｌｙｐｒｅｓｅｎｔｉｎｍｏｓｔｆｒｅｓｈｗａｔｅｒｂｏｄｉｅｓ.Ｉｎｂｉｏｍａｓｓ,ｔｈｉｓａｎｉｍａｌｉｓｐｒｏｂａｂｌｙｔｈｅｆｉｒｓｔｄｏｍｉｎａｎｔｓｐｅｃｉｅｓｏｆｍａｃｒｏｚｏｏｂｅｎｔｈｏｓ,ｓｏｉｔｐｌａｙｓａｎｉｍｐｏｒｔａｎｔｒｏｌｅｉｎｍａｔｅｒｉａｌｃｉｒｃｕｌａ…     

DEVELOPMENT STRATEGIES OF WATER AND LAND RESOURCES IN THE HEXI REGION,CHINA

ＤＥＶＥＬＯＰＭＥＮＴＳＴＲＡＴＥＧＩＥＳＯＦＷＡＴＥＲＡＮＤＬＡＮＤＲＥＳＯＵＲＣＥＳＩＮＴＨＥＨＥＸＩＲＥＧＩＯＮ，ＣＨＩＮＡ肖洪浪，高前兆，李福兴ＤＥＶＥＬＯＰＭＥＮＴＳＴＲＡＴＥＧＩＥＳＯＦＷＡＴＥＲＡＮＤＬＡＮＤＲＥＳＯＵＲＣＥＳＩＮＴＨＥ...     

下扬子盆地与区域地质构造演化特征及油气成藏分析

作者通过对下扬子盆地的发展演化序列，盆地区域构造演化特征及其油气成藏等方面进行了论述，经综合研究分析，认为下扬子盆地发展演化历经了古生代海相沉积成盆期和中新生代陆相堆积成盆期两个截然不同的地质历史阶段。原海相沉积盆地的雏形于中生代印支—燕山运动期间即遭破坏、解体，局部地区保留了某些原海相沉积盆地的残块。由于地质构造作用影响或是因原岩固结作用而散失了有效的排烃能力，故不具备有效的油气保存和储藏的可能。在原海相盆地解体之后出现的中新生代地质构造和沉积建造完全不同于海相盆地的中新生代陆相堆积盆地，其具有独立的生油储蓄组合，是油气成藏的有利的地方。文章还阐明了部—庐断裂带和江—绍断裂带，作为区域地质构造的骨架，它们始终扮演了控制下扬子盆地发展演化全过程的角色，其构造背景与盆地演化背景密切相关。