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Shvoong Home>Science>Agronomy - Agriculture>Several considerations on land resources survey-research in south-east seaside region of China Summary

Several considerations on land resources survey-research in south-east seaside region of China

Article Summary   by:TsingHua     Original Author: VOLCANOLOGY & MINERAL RESOURCES
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Land resources in South-east seaside region of China are devided into 5 types and 4 provinces.In the past,the problems about land utilization and survey in this region include:cultivated land area decreases rapidly,land resources utilization degree has much room for improvement ,land quality is degraded(soil eroded,land soilsalinized,rice soil gleyed and secondarily gleyed,land pollution aggravated),the overoomes of land resources surey are to be moderated.The contents of synthetic survey research during the newly nation land resources survey(1:250000)are :land-factors,land utilization types,vegetation cover status and developing situation,land adapability,soil chemistry.The contents of special survey (1:50000)are :the investigation of saline soil,erosion soil,soil environment quality,soil agriculture chemistry.The key of survey-research are :water-soil protection measures and land hazards prevention and administer,saline soil improvement and intertidal zone synthetic administer exploitation and utilization eco-environment negative effects and its recovery and control policy in mining concentration area,cyclic mechanism of matter-energy and physiological effect about rocksoilwater ecosystem.Space-time distribution and evolution monitoring(prediction) system about the types of land utilization inseaside plain and delta region.Finally,the writers primarily argue the policies of land resources survey.
Published: June 26, 2000   
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