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  • 2000 Volume 20 Issue 5
    Published: 20 September 2000
      
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  • The Paleoclimate Changes during the Past Millennium Lnferred from the Lacustrine Core in Daihai Lake, Inner Mongolia
    CAO Jian-ting, WANG Su-min, SHEN Ji, ZHANG Zhen-ke
    2000, 20(5): 391-396. https://doi.org/10.13249/j.cnki.sgs.2000.05.391
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    Located in the marginal belt of the southeast monsoon and ecotone, Daihai Lake has always been one of the most significant areas in the studies of paleoclimate change.Environmental proxies, such as TOC,δ13C org , carbonate contents, frequency dependent susceptibility and ostracoda fossils of sediment from Daihai Lake, Inner Mongolia, had been employed to reconstructed the paleoclimate evolution during the past thousand years.The environmental multiproxies indicated the cold humid climate, rather than cold dry climate in the early stage of the Little Ice Age(LIA).The last two cold periods of the LIA, recorded by the sediment, were in good agreement with those deduced by tree rings, ice core and historical literature.Based on the climate features in the last hundred years, this paper also advanced that human activities had become the main reason of the lake environmental deterioration in recent years.
  • Decadal Climatic Variations Indicated by Dulan Tree-Ring and the Comparison with Temperature Proxy Data from Other Regions of China during the Last 2000 Years
    YANG Bao, KANG Xing-cheng, SHI Ya-feng
    2000, 20(5): 397-402. https://doi.org/10.13249/j.cnki.sgs.2000.05.397
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    Based on hig resolution tree ring data from Dulan area of Qinghai Province, five spells have been divided: the warm period before 230’s A.D., the cold period between 240’s A.D.and 800’s A.D., the significantly warm period between 810’s A.D.and 1070’s, i.e. "Medieval Warm Period", the cold period including the "Little Ice Age" 1420’s-1870’s and the warming period since 1880’s.All the eleven coldest or warmest decades and several great abrupt changes took place before the Middle Ages, indicating that climatic system operated in great instability during the period 150’-1100’s A.D..Comparison of the tree ring data with other temperature proxy data from East China, Guliya ice core as well as the south of Qinghai Tibet Plateau shows that such great climatic events as Eastern Han warm period between the beginning of the 1st century and the previous fifty years of the third century, the cold period covering the span of Wei, Jin and the Southern and Northern Dynasties, the well known "Medieval Warm Period" as well as the "Little Ice Age" appeared in such series as East China and Dulan area.Only the first two climatic events were recorded conspicuously in Guliya ice core while the "Medieval Warm Period" and "Little Ice Age" is far weaker.Also, the well defined "Medieval Warm Period" didn’t occur in the south of Qinghai Tibet Plateau.The warming since the 20th century is the warmest in the last 200 years in Guliya ice core, the second in Dulan area and East China, but it scarcely seems pronounced in the eastern part of Qinghai Tibet Plateau.
  • Study on Regional Polarization of Guangdong Province since 1978
    ZHEN Feng, GU Chao-lin, SHEN Jian-fa, WONG Kwan-Yiu, CHU Kim-Yee
    2000, 20(5): 403-410. https://doi.org/10.13249/j.cnki.sgs.2000.05.403
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    Spatial polarization and uneven development has been the center of attention and of heated debate over the years.Much of the research is focused on the shifts of capital, jobs and population from the old industrial core to new cores or to the periphery.The theories of polarization and polarization reversal are central to regional development in advanced industrial economics.As for polarization, the most significant indicator is the emergence, consolidation and widening of gap between the economic core and economic periphery within a region or a country.Confronted with equipment obsolescence, unionized labors force and high production costs, the old industrial core has emerged polarization reversal.The theories of polarization and polarization reversal suggest that in the old industrial core the leading sector role of manufacturing has diminished in old manufacturing poles, and that income growth trends differ substantially between these old poles and new centers of development.In summary, based on the framework of polarization and polarization reversal, we can observe the spatial variation within the old industrial core, new growth center and periphery region.Since the economic reforms of 1978, China has opened up to foreign investment but retained restrictions on labor migration until the beginning of 1990s.In recent years, some impacts of these reform and open policies in regional development have been observed.It is significant that regional inequality is enlarged between coastal and inland regions but also between urban and rural regions in China.Guangdong Province is one of the first provinces in the People’s Republic of China to benefit from the open door policy which is representative in this research.Usually, the regional dynamics literature has tended to pay more attention to state or macro regional variation of growth than to regional or local variation.By taking Guangdong province as a case, this paper gives a method of measuring regional polarization and discusses the spatial polarization of growth within a region in order to give a clear explanation to the process of regional polarization under socialist market system.The consequence shows that regional polarization is a dynamic process under socialist market system, the core role may disappear when the leading sector of manufacturing declines.It is found that the old central cities, such as Guangzhou Shaoguan, Zhanjiang, Shantou and Chaoyang experienced a gradual process of weakening of their roles in regions, and some new cities, for example, Shenzhen, Zhuhai, Dongguan, Zhongshan, Shunde, Nanhai and Panyu became new regional growth centers.In general, the change of Guangdong’s regional structure can be described as a process of regional polarization.
  • The Research of Main Cities Space Relations of Cheng-Yu Industry Belt
    HUANG Bing-kang, LI Yi-chun, WU Min
    2000, 20(5): 411-415. https://doi.org/10.13249/j.cnki.sgs.2000.05.411
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    The cities space relations mean space interative relations among cities,its complicated degree is an important index of regional cities assemble benefits.This article discusses main cities space relations of Cheng-Yu industry belt.First,this article measures some indexes which mark the main cities space interactive strengths of Chen-Yu industry belt,and compares them with other main industry belts in China.Then,the article makes a concrete analysis of main cities interaction of Cheng-Yu industry belt.The third main part discusses the harmonious development thinkings of main cities space interaction of Cheng-Yu industry belt.
  • Channel Adjustment to River Transformation from Permanent to Seasonal and Effects on Flood Control——The Case of the Yellow River and the Hutuo River
    SHI Chang-xing
    2000, 20(5): 416-421. https://doi.org/10.13249/j.cnki.sgs.2000.05.416
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    The Hutuo River has been strongly regulated after two large reservoirs were built on the river in 1959.The annual runoff and mean sediment concentration in the lower reaches of the river in the period from 1969 to 1988 were decreased by 13.7 and 9.2 times respectively than those in the period before 1960.In the recent over two decades, there were only small water flows down the reservoirs in flood season, and the river kept dry in the rest time of the year.The discharge of the lower Yellow River decreased by over 1/3 in the period 1986-1996 comparing with that in the 1950’s and the 1960’s, but the mean sediment concentration changed inconsiderably.The phenomenon of flow breaking occurred as early as 1972 in the river, and the time and coverage of flow breaking had increased steadily thenceforth.Therefore, two of them have become essentially seasonal rivers.The paper discusses the adaptive adjustment of channels of the Yellow River and the Hutuo River to the change from a permanent to a seasonal river.The analyses show that the channel was eroded upstream and silted downstream along the lower reaches of the Hutuo River and was cut in the lower part and uplifted in the upper part cross sectionally.Since the river has been nearly cut off the flow and sediment load, the natural heavy sediment accumulation before 1959 has disappeared, and the changes in channel geometry and sinuosity were not significant.However, the hydraulic coarseness of the channel has been nearly doubled as a result of the invasion of vegetation into the channel and other reasons, resulting in the frequent occurrence of large disasters caused by small discharges which were harmless before.In the case of the Yellow River, the concentrated sediment accumulation in main channel has taken place in recent years since the discharge of the river was lowered conspicuously.Although the channel was deepened in the braided reach, it was seriously uplifted and narrowed, with obvious decrease in capacity, in the overall lower reaches.The result of the channel adjustment was the obvious rising of water level of a certain discharge and the huge disasters occasioned by small floods in recent years.With the enhancement of regulation, the possibility of increase in hydraulic roughness of the channel of the Yellow River due to the invasion of vegetation as the case of the Hutuo River should be paid more attention.
  • The Application of GIS and Water and Energy Budget to the Study on the Water Rebuilding of Paleo-lake——A Case in Shiyang River Drainage
    GUO Xiao-yin, CHEN Fa-hu, SHI Qi
    2000, 20(5): 422-426. https://doi.org/10.13249/j.cnki.sgs.2000.05.422
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    The study of lake evolution is one of the important aspects of study of global change.Inland lakes are influenced by climatic change more sensitively than lakes in humid area.It is significant to study the evolution of inland lakes.Gansu Corridor is located in the regional edge of the Eastern Asia Monsoon.Because it is sensitive to climatic change due to its fragile eco-environment, it is an ideal regied for studying global change.In the prehistoric period a large terminal lake——Zhuyeze Lake once existed in the studied area——Shiyang River drainage that is located in the eastern Gansu Corridor.Since the historic period it has gradually shrunk into many small lakes, and these small lakes dried up and disappeared in succession.This article first tries to inquire into terminal lake evolution in this studied area by combining techniques of GIS with the results of deposit study.Digital Terrain Model(DTM) of lake area in the lower reaches of the Shiyang River is built.Space time evolution of terminal lakes was analyzed and the lake area of different periods in Holocene was calculated according DTM.The precipitation of two periods during Holocene was calculated by a mathematical model which applies to an ideal situation of terminal lake in the Shiyang River drainage, following the water and energy budget principle under the situation that no lake exists now.Preliminary results indicate that water levels reached 1320 m and 1314 m in 5000 a B.P.and 3600 a B.P.during Holocene, and terminal lake areas are 2130 km2 and 870 km2.Landforms around the basin reflected in the DTM suggest that if the water level reaches 1320-1330m, the Shiyang River drainage will become an outflow drainage.The lake of 2130 km2 maybe is the largest lake in this drainage.During late Holocene after 3600 a B.P., the large terminal lake broke into two parts.According to the model of water and energy budget in the Shiyang River drainage, precipitation of above two periods was 250-256 mm and 186-188 mm, more than that of modern time by 49%-52% and 11%-12% respectively.And a lake of 580 km2 would have appeared in the basin if there were no human activities in this area under modern climate situations.Analysis of sensitivity factors of the model indicates that temperature and vaporpressure have less effect on precipitation than cloudiness, albedo and the Bowen ratio.Compared to other regions, the Shiyang River drainage is more sensitive to climate variations.
  • On the Arising Law of the Big Flood in the Jianghuai Valley
    FENG Li-hua
    2000, 20(5): 427-430. https://doi.org/10.13249/j.cnki.sgs.2000.05.427
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    According to the analysis of the big floods in the Jianghuai Valley, three new conclusions are given as follows:(1)there is generally the big flood in the Jianghuai Valley around the peak-valley year of sunspot activity;(2)there is probably the big or huge flood in the Jianghuai Valley around the year of magnetic cycle transformation of sunspot activity;(3)there is more probably the big or huge flood in the Jianghuai Valley in the same or next year of El Nino around the year of magnetic cycle transformation of sunspot activity.These conclusions can provide certain theoretical basis for the flood forecast of long or over-long term.
  • Agriculture Activity and Sustainable Use of Farmland in Karst Mountain Area
    ZHOU You-You
    2000, 20(5): 431-436. https://doi.org/10.13249/j.cnki.sgs.2000.05.431
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    According to case study and sampling,this thesis researches farmland use in southwest China karst mountain area.The results show that because of the soil layer being too thin and freely aerated as well as waterleakage of the parent layer,the soil fertility reduces distinctly,drought and other natural disasters become more serious,yields strongly depend on chemical fertilizer after long-term improper reclamation and cultivation.On condition that large quantity of chemical fertilizer application,the farmland only keeps about 30% organic matter after about 60 years’cultivation in contrast with the uncultivated land.The yields are highest and very stable whene the rate of reclaimed land is about 20% to 30% and the percentage of forest cover is about 35% to 45%.If the gradient of the original land is steeper than 16° and the soil layer is about 50-80cm thick or thinner,the effect to keep soil-water and nutrient by building terraced fields can only relief drought slightly and is not at all the effective way to solve karst drought.Through comprehensive analysis,it is considered that sustainable use of calcic farmland in karst mountain must be based firstly on proper rate of reclaimed land;secondly on proper percentage of forest cover;thirdly on reasonable fertilizer application and lastly on effective soil conservation.The key to realize this aim is to establish eco-agricultural system.And the prerequisite for that is to reduce the farm land acreage and population in the area.
  • The Systematic Appraisal and Planning of Changshu SARD
    LUO Shou-gui, ZENG Zun-gu, WANG Wei-lun, TU Wei-yuan, YANG Jian-xin
    2000, 20(5): 437-443. https://doi.org/10.13249/j.cnki.sgs.2000.05.437
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    Both developed and developing countries face to sustainable agriculture and rural development(SARD).The stage of SARD in different areas is different, and their developing pattern is various.It is meaningful both in theories and practices to scientifically appraise the deviation of SARD and to reasonably draw up plans for regional development.In this paper, based on the designed appraisal thinking, a multi objective planning model is designed, which is
    (Vp) Fmax =(f1,f2,...,fm)
    s.t.∑ =1Xlt≤cl, l=1,2,...,s
    Xlt ≥0,t=1,2,...,nl,
    We do our researches by taking Changshu City as an example.Firstly, we establish an indicator system of Changshu SARD, which includes 28 input and 30 output indicators.In establishing the indicator system, we act upon the basic thoughts of SARD that sustainable agriculture and rural development is synthetic outputs of various inputs containing resources, environment, manpower and economic factors.That is to say, not only direct economic inputs, but the use of resources and the burden of environment are regarded as input factors; meanwhile, the outputs not only contain economic and social factors, but contain the factors of environmental quality.And based on the framework of this indicator system, we establish a database of sustainable agriculture and rural development of Changshu(CSSARD) and an auxiliary database(ACSSARD), and standardize them through efficacy function.Then using the model mentioned above, we appraise the results of sustainable agriculture and rural development in Changshu from 1990 to 1997.It is shown that the degree of the developing deviation to the best possibility in the 8 years is respectively 0.25, 0.28, 0.10, 0.17, 0.12, 0.08, 0.17, 0.19.That is to say, the developing situation in 1995 is the most satisfied, while that in 1991 is the most unsatisfied.In the end of the paper, through dynamic simulation on computer, we get three different input plans:(1) laying emphasis on technology and economics, which stresses high benefits";(2) laying emphasis on operation of manpower resources, which stresses intensification"; and(3) synthetic balancing plan, which is designed by comprehensively adhering to the connotation of model of high benefits, intensification and sustainability.As an example, the concrete planning data in 2000 is given in the paper.
  • Influence of Human Activities on the Mire in Zoige Plateau and Countermeasure
    ZHAO Kui-yi, HE Chi-quan
    2000, 20(5): 444-449. https://doi.org/10.13249/j.cnki.sgs.2000.05.444
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    The change of Zoige Plateau mire as the result of the human activities is discussed in this paper,by way of the comparative analysis the mire vegetation,mire soil(infusible N,P,K in Chuolajiang lakeshore(CLJL) mire soil without disturbance plot is higher than its in ninth road group(1) which is low degree disturbed or its in ninth road group(2) which is high degree disturbed.But the solubility N,P,K(namely quick result N,P,K) is in the adverse,its conttent in the disturb mire pasture soil is higher than its in the original mire.Tht analysis of mire hydro chemistry,mire microclimate shows made known that the region environment have distinctly changed in the recent years,resnlting in the pasture degeneration,wild animal decrease,mouse harm increase,part of the land is sandy and salt.This paper analyzed the cause of the above problem and puts forward some preventing countermeasures.
  • Study on Eco-tourism and Sustainable Development in Nature Reserve——A Case of Khanas Nature Reserve
    YANG Zhao-ping, ZHANG Xiao-lei
    2000, 20(5): 450-455. https://doi.org/10.13249/j.cnki.sgs.2000.05.450
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    Nature reserve usually locates in remote backward areas.Tourism development not only can drive development of economy but also lead to heavy environmental pressure to nature reserve.Unwell development can make nature reserve crushing destruction.Khanas locates in Burgin county of Altay, Xinjiang.Tourism is limited in southern buffer of reserve, with area of 35 km2.Khanas Lake and Khanas River valley landscape is the essence of Khanas tourism resources, which is one of the few districts with the most beautiful landscape and the best preserve in Xinjiang.Experts at home and abroad pay close attention to Khanas for its science and tourism value.This paper appraises Khanas atmosphere quality and source water quality, the result is the eco-environment of Khanas is good.Based on three estimating principles(principle of protection, patience degree, and satisfaction), two methods(route method, area calculating method) are used to estimate environment capacity.The final result is that the total environmental capacity is 350,000 person-time, and the totals will add if winter tourism is carried out.Through above analysis, some eco-environment protection measures of Khanas nature reserve have been put forward:(1) Protection is as important as value increase.Abiding by the principle of protection, development and use, appropriate development can be in progress within the scope eco-environment can endure.(2) Protection should be classified.The first grade reserve is core area, which only can be used by scienctifical research, but ordinary tourists and pollution material should be forbiddened.The second grade is buffer of reserve, it is also the essence of tourism resource, nature landscape and primitive human landscape should be protected strictly.The third grade is the outer-ring, which goal is to control industry pollution and beatify landscape.(3) Creature resource should be protected.It includes protection of natural forest, prevention from fire and insect pest, prevention of excessive herds in grassland, protection of rare animals.(4) To prevent and cure tourism pollution is needed.Measures can be taken to decrease atmosphere and water pollution caused by tourism to small degree.Garbage should be classified and disposed.(5) Constructive destruction should be prevented.Life base must consider effectively effects and construction in scenery area should be kept in perfect hewmony(6) To protect human landscape is very important,Such as protecting primitive village, nationality customsetc.
  • A Discussion on Formation Process of Tufa Landscape as Tour Resources——A Case study of the tufa in Jiuzhaigou, Sichuan and Huangguoshu,Guizhou etc.
    TIAN You-ping, HE Fu-sheng
    2000, 20(5): 456-461. https://doi.org/10.13249/j.cnki.sgs.2000.05.456
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    Tufa landscape is an important component of the world karst landforms.Owing to its tremendous scale, peculiar form and wonderful colour, tufa landscape becomes very valuable karst tour resources.For example, Plitvice national park of Yugslavia, Jiuzhaigou, Huangguoshu and Maling gorge of China.All of them are famous scenic spots which take tremendous scale tufa landscapes as the main scenic body.Many reports had explained formation process of tufa landscapes.The vast majority of research workers think that formation process of tufa landscapes is controlled mainly by karst water and landform place related to karst water current, and organisms only participate in(e.g.organisms absorb CO2 through photosynthesis and result in CaCO3 deposit in water) or controlled the formation of small tufa shapes.Very few research workers understand the organisms control role of tufa landscapes(large tufa shape) which should not be ignored.However, through a lot of on the spot surveies and laboratory researches of the tufa landscape in Jiuzhaigou, Sichuan and Huangguoshu, Guizhou etc., it is believed that organisms(Cyanophyta, Chlorophyta) are associated closely with deposits and form algae mats, which not only play key role to generation and formation process of tufa are on a cause position, but also control exceedingly the formation scale of tufa landscape through repeated layered accumulation and side extension of mats.Therefore, formation process of tufa landscape is controlled by organisms, topography and hydrology.Among them, organisms are on an important or center position.Models of formation process of main tufa landscapes(waterfall tufa, dam tufa and beach tufa, as tour resources) are put forward in the paper.Studying organisms control role of tufa landscape has important theoretical value in Biokarst, Sedimentology and Karst geomorphology and new guide role to scientific protection and utilization of tufa landscape tour resources.This paper is composed of two parts.Frist part is the base shape of tufa landscapes and analyses and models of its shape formation process.Tufa landscapes are mainly waterfall tufa, dam tufa and beach tufa.Waterfall tufa often appear on Knick point of considerable drop river.e.g.Shuzheng waterfall tufa and Luorinang waterfall tufa(in Jiuzhaigou, Sichuan), Huangguoshu waterfall tufa(in Guizhou).These waterfall tufas often consist of a lot of tufa bodies whose shapes are diverse.some show cone and hang on waterfall wall, for example, Huangguoshu waterfall tufa,top of cone tufa bodies often adhere to the place where direction of flowing water in river change suddenly; Some show mushroom’s head shape, lung’s lobe shape, broom shape etc.It is hollow between some tufa bodies and bedrock, and form tufa cave.Some tufa bodies cover tightly bedrock, and are solid.It is closely related to the slope of rock under tufa bodies that tufa bodies are hollow or solid.Formation process of waterfall landscape is explained in the paper throught explaining an instance of formation process of typical cone Huangguoshu waterfall tufa(abbreviate "cone tufa").Dam tufa often appear on Knick point and protuberance of river.Beach tufa often appear on slope and beach of river.The article analyses models of these tufas formation process.It is thought that organisms are the main "builder" of these tufa.So these tufa may be named biotufa.Second part of the paper is the conclusion.
  • Changes of Ubran Land Use in Guiyang and the Environmental Effects
    SU Wei-ci
    2000, 20(5): 462-468. https://doi.org/10.13249/j.cnki.sgs.2000.05.462
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    In views of ubran land use scale,functional structure and spatial pattern of land use this article preliminary analyzed the basic characteristics of urban land use changes in Guiyang City for last seven centuries:(1) expanding speed of urban land use scale become more and more faster,but the expanding way was first exterior extension(before 1985), they belongs to interior transition together with exterior extension;(2) functional structure of urban land use from single to mixture and next to separatation methodically;(3) shape structure of urban land use from concentrated distribution(before liberation) to assembled distribution(iner city and seven satellite towns).Based on these analysis,the authors explored the main driving forces(such as policy and institution,the agglomeration of population and economics, karst landform structure, compensating use of urban land, urban traffic and communication, the progression of science and technology, and suitability of urban land) which affected the development of Guiyang ubran land use.Finally, the environmental effects(especially in modern times) following the development process of ubran land use in Guiyang were summarized as follows:(1) "modern city siknesses" are serious(mainly including urban "island climate", crowding urban residential environment and unreasonable land use strueture),(2) urban environmental quality tend to deterioration,(3) the frequencies of urban disasters(such as flood, landslide and mud-rockflow,karst collapse) are quickening.
  • Geochemical Features of Elements of Selenium etc.in Soil of Loess Plateau
    WANG Jin-da, YU Jun-bao, ZHANG Xue-lin
    2000, 20(5): 469-473. https://doi.org/10.13249/j.cnki.sgs.2000.05.469
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    The geochemical features of elements of selenium etc.in soil of Chinese Loess Plateau landscape is studied.The results indicate that the elements of Se, Pb and Ca show similar differential law in different kinds of soil sections.Se mainly accumulates at top layer of soil, and its content is positive correlation with content of organic matter in soil.P, Zn and Pb are transference from residual landscape to accumulational landscape, and are accumulated there.But Se is accumulated in aqueous landscape(Jinghe River water body).The geochemical action of Se in soil is controlled by the content of organic matter in soil and meteorological condition, and its content is closely correlatied with soil type and soil growth degree.
  • Information of Debris Flow and Its Collection
    XIE Hong, ZHONG Dun-lun, WEI Fang-qiang, LI Yong
    2000, 20(5): 474-477. https://doi.org/10.13249/j.cnki.sgs.2000.05.474
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    Debris flow and its hazards as the well as related various data belong to the category of debris flow information.The collection and collation and standardization of information of debris flow are the basic work for setting up information system, sharing and utilizing comprehensively the information resources.
  • Land Resources and Its Sustainable Utilization in Inner Mongolia
    BAO Yin, BAO Yu-hai
    2000, 20(5): 478-482. https://doi.org/10.13249/j.cnki.sgs.2000.05.478
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    In this paper,systematic analysis has been made to the characteristic of land resources and its utilization structure in Inner Mongolia,and the main problems exited in land use have been found.Furthermore,the irrationality and regional diversity of land use structure have also been found out and explained.In the end,the principle of sustainable land use and rational proposal of its, utilizition have been proposed.
  • Characteristics of Alkaline Lake Wetland in Songnen Plain and Discussion about Its Agricultural Development——Taking Yaopao Lake of Da’an Palaeochannel Area for Example
    LUO Xin-zheng, YI Fu-ke, SUN Guang-you
    2000, 20(5): 483-486. https://doi.org/10.13249/j.cnki.sgs.2000.05.483
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    In Songnen Plain, there is about 16 340 square kilometres of saline-alkaline wetland, which mainly consist of a lot of alkaline lakes, now occupying an important place in the system of regional resources environment.The saline-alkaline wetland is the result of saline-alkalization of wetland, showing degeneration of entironment.It has great significance to harness and develop saline-alkaline wetland either for the recovery of enviroment or the development of agriculture.Among the alkaline lakes, there are a lot of alkalescence lakes and ponds, which form special kind of wetland and occupy an important position in the system of regional resources environment.Yaopao Lake is one of the typical alkalescence lake wetlands in the Songnen Plain.Its ecosystem boasts such excellence as better bio-diversity and short food chains.But the quantitative relation of animals and plants reflected the shortages of imbalance of ecosystem structure and functional disorder.Finally, the paper points out such concrete measures for eco agricultural development as fishery, breeding of poultry, planting rice and reed according to the ecosystem characteristics in order to build the model of paddy-reed-fishery-poultry-domestic animal livestock.