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Table of Content

    25 June 1994, Volume 9 Issue 2 Previous Issue    Next Issue
    Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS
    SUSTAINABLE DEVELOPMENT AND NATURAL RESOURCE STRATEGY FOR NATURAL RESOURCE MANAGEMENT
    Li Wenhua
    1994, 9 (2):  97-106.  doi: 10.11849/zrzyxb.1994.02.001
    Abstract ( )   PDF (737KB) ( )   Save
    This paper attempts to give a general review about the background and development of the concept of sustainable development since the United Nation's Conference on Human Environment held in Stokholm in 1992. The main features and principles of sustainable development are summarized. The challenges and opportunities in natural resources management in China are analysed. Based on the principles of sustainable development, in accordance with the concret conditions of China,a strategy for sustainable development of natural resources is presented. This includes to establish a framework of interconnected systems of population,resources, environment and development at the national level; to keep the population in a sustainable level;to develop integrated eco-farming systems in rural areas; to promot technical and energy revolution; and to strenthen training, education, and research. The conservation of biodiversity and vitality of biological resources are recommended. International cooperation and people's participation are also emphasised. It is suggested to establish the information and monitoring systems as well as a decision making management system so as to develop the natural resources on a sustainable bases.
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    MEDICINAL PLANT RESOURCES IN SOUTHWEST CHINA, AND THEIR EXPLOITATION AND UTILIZATION
    Chen Shukun
    1994, 9 (2):  107-111.  doi: 10.11849/zrzyxb.1994.02.002
    Abstract ( )   PDF (349KB) ( )   Save
    In Southwest China, the raw materials for making the traditional Chinese medicine are famous at home and abroad because of the richness of their varieties, high quality, large quantity and long history. The producing regions are traditionally known as "Chuan (Sichuan)-Guang (Guangdong and Guangxi)-Yun (Yunnan)-Gui(Guizhou)". There are about 5750 species of medicinal plants there, which account for eighty percent of the sum total of these resources in whole country. Almost all the original plants of crude drugs and all the medicinal plants for curing verious kinds of diseases can be found in the Southwest. Indeed,the Southwest is a treasure-house for developing new natural drugs and healthkeeping medicinces.
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    CHARACTERISTICS OF LATERITIC RED EARTH IN GUANGDONG PROVINCE AND ITS EXPLOITATION AND UTILIZATION
    Yang Pingru, Liu Tenghui
    1994, 9 (2):  112-122.  doi: 10.11849/zrzyxb.1994.02.003
    Abstract ( )   PDF (599KB) ( )   Save
    Lateritic red earth is a zonal soil in the south subtropical zone and distributes widely on low hilly land and platforms where the altitude is lower than 300-450 meters. Its area is large,occupying 45% of total soil area of Guangdong province. Under the bioclimatic conditions of the south subtropical zone where high temperature is accompanied by heavy rainfall,the characteristics of soil formation include strong desilication,ferric-allitic weathering, flourishing biological cycle, seashore re-salinization, etc. The following are the main characteristics of the soil: It has a complete genetic profile,the kaolinite content is the main part of clay minerals, the acidity is strong, the nutrient content is relatively low, and the soil texture is generally sandy.Lateritic red earth is a main base for developing a diversified agriculture on hills and platforms of the south subtropical zone in Guangdong province, Its productive potential is very great. In order to fully develop its productive superiority and raise the soil fertility, the following aspects must be emphasized. They are suitable exploitation and utilization of land according to local conditions, suitable, rotation and interplanting of crops, suitable dressing,preventing soil and water loss, developing irrigation, and so on.
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    USING THE WINTER SUPERIORITY OF HAINAN TO ACTIVELY DEVELOP THE WINTER AGRICULTURE
    Chen Yinjun
    1994, 9 (2):  123-130.  doi: 10.11849/zrzyxb.1994.02.004
    Abstract ( )   PDF (542KB) ( )   Save
    Hainan is the biggest tropical region and the biggest natural winter green house of China.There are rich light and warmth resources and seldom typhoon, rainstorm, and plant diseases and insect pests. In the special dry time, winter crops can normally grow under suitable irrigation and their yields are also stable and high. The varieties of the melon, vegtable, grain and forage crops that can be planted in winter are rich. The area that can be used in winter is very large. It is the key measure that the winter agriculture is actively developed by using the winter superiority to realize high-quality and efficient agriculture. For in summer typhoon,floods and plant diseases and insect pests are all serious, the potentiatity of the resoures development is limited and the products of tropical crops are facing keen competition from some countries of southeast Asia, south Asia and America.
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    A RESEARCH ON THE EVALUATION AND DEVELOPMENT OF TOURIST LAND IN HAINAN PROVINCE
    Cheng Weimin, Xie Binggeng, Li Xiaoqing, Yang Youxiao
    1994, 9 (2):  131-141.  doi: 10.11849/zrzyxb.1994.02.005
    Abstract ( )   PDF (448KB) ( )   Save
    Research on tourist land evaluation and development is an important basic work when tourist planning and tourist development policy are made. On the basis of landscaperesource value, landscape-site abundance, landscape-site density, environmental quality, tourist condition,scale volume and location condition, this paper has evaluated the tourist land in Hainan province by using a comprehensive index method. Three potential grades,eleven landscape-resource groups and three function types are divided. The area of grade Ⅰ,accounting for 36.7% of the whole tourist land, is The largest, the area of grade Ⅲ ranks second, accounting for 34.9%.Because the tourist land in Hainan province is so rich that tourist land resource shortage cannot appear in a long period, this paper lays stress on the forecast of the demand for tourist land when the supply and demand forecast of tourist land is made. The forecast is made by using the visitor market and the once volume of tourist land in accordance with the following formulation, S= A·Dit/R where S is the demand for tourist land, Dit is the once volume of different groups of tourist land, R is the average frequency of receiving visitors per day, and A is the maximum amount of visitors of different groups of tourist land per day.On the basis of the evaluation of tourist land and the forecast of the demand for tourist land in the future, this paper propose that the development of tourist land should lay emphasis on the development of tropical seaside beaches, islands and tropical organism landscape, e.g.,the Yalong Bay of Sanya municipality, the Gaolong Bay and the Tonggu Ridge of Wenchang county, the Nanwan Monkey Island of Lingshui county and the Wuzhi Mountain of Tongshi county. At the same time, the development of historical relic gardens,national customs,rivers, lakes, reservoirs, tropical plantations, hot springs waterfall landscape cannot be ignored. The developmental goal of tourist land is to make Hainan province become one of the international tourist spots that have diverse functions, obvious regional features and beautiful environment. To realize the goal, various effective measures should be taken. Firstly, the development mechanism of tourist land should be perfected. Secondly,the dominant types of tourist land should be carefully chosen so as to do macro-regulation well. Thirdly,the ecological construction of tourist land should be strengthened so as to create a beautiful environment.Finally,the research on the follow-up evaluation of tourist land should be made.
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    A FORECAST OF THE EFFECTS OF THE "CONDUCTING THE HUANGHE RIVER WATER TO THE BAIYANGDIAN LAKE"PROJECT ON REGIONAL WATER AND LAND RESOURCES──FOR THE SECTION FROM XIAN COUNTY TO THE BAIYANGDIAN LAKE
    Hou Yanlin
    1994, 9 (2):  142-149.  doi: 10.11849/zrzyxb.1994.02.006
    Abstract ( )   PDF (422KB) ( )   Save
    This study ,by making use of the hydrodynamic simulation and the salinized-soil identification method and with the aid of a geographic information system technique, establishes a model for forecasting the effects of a large water-conservancy project on regional water and soil resources through systematic analysis. This model has preliminarily been applied to a section of the "conducting the Huanghe River water to the Baiyangdian lake"Project, namely,the section from Xian County to the Baiyangdian lake. The results show that the forecast is practicable and its accuracy depends mainly on the generalization of the parametric choice and other relevant questions.
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    RESOURCES EXPLOITATION AND COUNTERMEASURES OF ENVIRONMENTAL PROTECTION FOR THE HONGHU LAKE IN HUBEI PROVINCE
    Zhang Jiayu, Feng Huifang
    1994, 9 (2):  150-155.  doi: 10.11849/zrzyxb.1994.02.007
    Abstract ( )   PDF (288KB) ( )   Save
    This paper takes the eco-environmdent and the exploitation of its aquatic resources of the Honghu lake as an example to discuss the good-cycle ecological pattern which preserves and makes full use of the eco-economic benefit of the Honghu lake resources. The practical countermeasures of rational exploitation of the resources are proposed in order to attain steady,persistent development of the productivity of the water body.
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    A COMPARISION OF THE BIOMASS OF ARTIFICIAL COMMUNITIES OF RED CLOVER, RED CLOVER-ORCHARDGRASS AND RED CLOVE-RRYEGRASS IN THE HIGH MOUNTAIN REGION OF EASTEN SICHUAN PROVINCE
    Zhong Huaping
    1994, 9 (2):  156-163.  doi: 10.11849/zrzyxb.1994.02.008
    Abstract ( )   PDF (400KB) ( )   Save
    Red clover is a good forage crop and grows very well in the high mountain region of easten Sichuan Province. This study observs the biomass and compares the characteristics of the grass biomass, the biomass above ground and the biomass under ground of three artificial communities of Red Clover,Red Clover-Orchardgrass and Red Clover-Ryegrass. It analyses each organ biomass and their vertical distribution and the productive structure of the three communities. The results show that the biomass of Red Clover-Ryegrass community is the highest, namely, 261. 42g/50×50cm2. But the biomass under ground of the Red Clover-Orchardgrass community is the largest, namely, 139.16g/50×50cm2. The productive structure of all the three pastures is a irregular tower in shape. At the hight of 20-40cm,the biomass is the largest. Their productive structure is reasonable. According to the organ biomass, each organ has its major distributive layer. The major distributive layers of stem, leaves and flowers are at 0-40cm,at about 40 cm and at about 50 cm respectively.
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    DECISION-MAKING MODEL USING EXPERT SYSTEMS FOR WATER RESOURCES SYSTEM MANAGEMENT WITH MULTI-OBJECTS, MULTI-SOURCES AND MULTI-USERS
    Lu Jingxuan
    1994, 9 (2):  164-175.  doi: 10.11849/zrzyxb.1994.02.009
    Abstract ( )   PDF (735KB) ( )   Save
    Almost all modern water resources systems are featured as multi-objects, multi-sources and multi-users ,which should be kept in mind during decision-making process of their development and management. A decision-making model using expert systems technology for Water Resources systems management was developed in this paper. The phototype of the Water resources system used in this work is composed of a surface reservoir water supply system, a public water supply system ,three different irrigation areas and a swamp ecological area. It originally came from the idea of irrigation games and role play proposed by some British researchers in the early 70's and improved by other foreigners later on , Then it was used as the prototype of a simple but realistic and integreted water resources system management and a role play Lotus simulation model was developed based on it. The players in the role play model are Water Authority Manager(WAM), Public Water Supply Manager (PWSM) and three different groups of Farmers. Another player, System Manager, was introduced to the system in this work to make it perfect and consistent with cases in our country. This player is responsible for the overall operation,settling down conflicts among different players, controlling the system environmental quality,and making overall socialeconomic as well as environmental benefits maximal. The main objectives of the role play simulation model are focused on training different players in the game,or different persons involved in different roles within the system to become farmiliar with and to gain inside into all possible aspects concerning operation and maintenance of a typical water resources system. A decision-making model using the PC-based VP-Expert Shell was developed to extend the functions and to improve the performance of all the players on their decision-making process. undoubtedly,it is a very useful approach for modern water resources system management.
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    AN APPROACH TO THE METHODS OF THE PLANNING AND DESIGNING OF LAND USE SYSTEM
    Yu Zhenning, Xin Dehui
    1994, 9 (2):  176-184.  doi: 10.11849/zrzyxb.1994.02.010
    Abstract ( )   PDF (498KB) ( )   Save
    In this paper,the systematic thought and ecological principle are applied to set forward a model frame of the method of planning and design of the land use in the agricultural region.In doing so,the center is the study of the operational and developmental process of the coupling of land, food and human, and the aim is to establish a rational land use system. The items concerned include object design, land evaluation,agroecosystem analysis, the simulation model of the quantitative study of the land use system, the optimazation of the land use structure, the ecological design of the land use system,and the design of the multi-layer artificial control system.
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    STUDY ON THE METHOD OF SUITABILITY RATING FOR LAND DEVELOPMENT IN THE RESIDUAL LOESS PLATFORM REGION
    Yao Jianmin
    1994, 9 (2):  185-192.  doi: 10.11849/zrzyxb.1994.02.011
    Abstract ( )   PDF (488KB) ( )   Save
    To efficiently control and improve the deteriorating ecological environment in the residual loess platform region we should develop the land resources on the basis of economics.This paper provides a method of evaluating the suitability of land development to deal with the problems of developing land resources. First, from various environmental factors four of them are picked out. They are land types, slope, slope aspect and elevation, which can stand for the difference among land facets. Then by using the method the suitability 644 land facets have been evaluated in the residual loess platform region in Xixian county of Shanxi province. This serves as an important sample region for fulfilling the Eighth Five-Year Plan of the state. It has proved that the actual effect is good.
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