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AREAL DIFFERENTIATION AND CONSTRUCTION OF OASIS AGRICULTURAL ECOSYSTEM IN THE shiyang RIVER BASIN

Chinese Geographical Science 1993年第4期3卷 71-78页

作者：张维祥梁智睿 Shandong Economic Research Centre Jinan 250011 PRC Shandong Television University Jinan 250014 PRC

On the basis of the study on areal differentiation of the natural environment of oasis agriculture ecosystems in the shiyang River Basin, this paper comparatively analyzes the natural productivities, water economic benefits, production efficiency, ecological stabilities and developmental conditions of the Wuwei Oasis agricultural ecosystem in the middle reaches of the river basin and the Minqin Oasis agricultural ecosystem in the lower reaches. Under a same management level and investment of . material and energy, primary productiveness and economic benefits of the former are higher than those of the latter. Construction directions of Wuwei and Minqin oases should be different in order to alleviate the water- use contradiction between the middle and lower reaches. The construction objective of Wuwei Oasis should be efficient irrigated farming production system and Minqin Oasis should become a mixed forestry-pastoral-farming ecosystem taking ecological protection as its major function.

关键词： oasis agricultural ecosystem areal differentiation oasis construction the shiyang River Basin

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shiyang River ecosystem problems and countermeasures

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Agricultural Sciences 2013年第2期4卷 72-78页

作者： Faming Li Guoqing Zhu Chunxiu Guo Gansu Desert Control Research Institute Lanzhou China Gansu Minqin National Studies Station for Desert Steppe Ecosystem Lanzhou China Gansu Key Laboratory of Desertification Combating Gansu Desert Control Research Institute Lanzhou China State Key Laboratory Breeding Base of Desertification and Aralian Sand Disaster Combating Gansu Desert Control Research Institute Wuwei China

With the increase of population and the development of social economy, contradiction between water supply and demand of shiyang River Basin become more outstanding. Unreasonable exploitation and utilization of water resources cause the serious deterioration of ecological environment. According to the present ecoligical situation, by analyzing some actual problems of the ecosystem of shiyang River Basin, a series of feasible control countermeasures are proposed. The article provide theoretical basis for the treatment and recovery of the degradation of ecological environment of shiyang Rive Basin.

关键词： Degradation of Ecological Environment Water Resource Ecological Water Use shiyang River Minqin Oasis

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Population Distribution Evolution Characteristics and Shift Growth Analysis in shiyang River Basin

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International Journal of Geosciences 2014年第11期5卷 1395-1403页

作者： Minzhi Chen Peizhen Wang Li Chen Institute of Urban Planning and Design Nanjing University Nanjing China The School of Architecture and Urban Planning Nanjing University Nanjing China The High School Attached to Northwest Normal University Nanjing China

In recent years, the population size and scale of the shiyang River Basin unceasingly expanding lead to a series of ecological environment: surface water reducing, land desertification and Ground water levels fall, etc. Research evolution characteristics of population distribution and migration growth of shiyang River Basin contribute to river water resources and the industrial development of the comprehensive management. The article using the distribution of population structure index, population distribution center of gravity model and the population migration growth analysis model analyzes the distribution of the population evolution characteristics and population migration growth characteristics of shiyang River Basin in 2000 to 2010. The results show that: 1) Considering shiyang River Basin, population density is generally low, population distribution difference is bigger and concentration distribution in the middle corridor plain and three big population distribution center of Minqin oasis area, presenting a “point-areas-ribbon” structure characteristics. 2) The population distribution trend of shiyang River Basin is constantly concentration, but the change is slow;the population distribution of Minqin is in the highest concentration degree, but the trend has been declining. 3) The focus of population density in river basin locates in Liangzhou district of Daliu country;in ten years, it migrates about 1209 m to southwest Wuwei City direction, but migration along the direction things is bigger than the north and south direction. The focus of population density and the basin geometry center is far away. 4) For ten years, at the township for basic statistics unit, each level population migration change within the overall is not significant: township level > prefecture-level cities level > counties level. 5) For ten years, there are significant changes in population migration between watershed township units, Wuwei City and Gulang Town are the two main concentrati

关键词： shiyang River Basin Population Distribution Evolution Characteristics Shift Growth Analysis

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Structural Characteristics of Lycium ruthenicum Community & Soil Properties on Different Types of Desert Rangeland in the Lower Reaches of shiyang River

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Medicinal Plant 2019年第2期10卷 58-65页

作者： Chunxiu GUO Lide WANG Fanglan HE Junmei MA Jinhui LI Fubo AN Hongbo YUAN Kailin LIU State Key Laboratory Breeding Base of Desertification and Aeolian Sand Disaster Combating Minqin National Station for Desert Steppe Ecosystem Studies Gansu Desert Control Research Institute

[Objectives] To study structural characteristics of Lycium ruthenicum community and soil properties on different types of desert rangeland in the lower reaches of shiyang River, and provide theoretical basis for ecological protection and management in the lower reaches of shiyang River. [Methods] One-way ANOVA analysis and correlation analysis were carried out with the aid of SPSS19.0 software for different types of desert rangeland soils. [Results](i) Among the communities surveyed, there are 31 species belonging to 9 families and 28 genera, including 12 shrub plants, 8 perennial herbs and 11 annual herbs. There are more single genus, occupying 50% of total genus. L. ruthenicum occupies an important position in the community with relatively higher importance value. It plays a dominated role in the community.(ii) In the soils with depths of 0-10 cm, 10-20 cm, 20-40 cm and 40-60 cm in different types of desert rangeland, the organic carbon contents in the saline alkali soil were the highest, with the values of 1.08%, 0.98%, 0.89% and 0.972%, respectively. Compared with that in sandy land, soil organic carbon in saline alkali land(0-10 cm) had the significant difference(P0.05). Soil organic carbon, available soil phosphorus in saline alkali land, total soil potassium on sand dune and total soil phosphorus in saline alkali land and gravel in different soil layers of the same type of desert rangeland had distinct aggregation effect.(iii) The soil microbial biomass in different types of desert rangeland displayed from high to low as saline alkali land > sandy land > fixed and semi fixed sandy land > gravel. The discrepancy of soil microbial biomass

关键词： Lower reaches of shiyang River Desert rangeland Lycium ruthenicum community Vegetation characteristics Soil properties

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