Land use and protection has become a global hot spot.How to use land resources is an important topic for the future socio-economic sustainable development.This paper analyzes the land use changes of Mata lake of Shand...Land use and protection has become a global hot spot.How to use land resources is an important topic for the future socio-economic sustainable development.This paper analyzes the land use changes of Mata lake of Shandong province in China,from 1985's to 2000's using multi-temporal remotely sensed data including TM in the 1985s,ETM+in the 2000s and ancillary data such as soil use map,water map etc.The remote sensing imageries were calibrated,registered and geo-referenced,then classified by multi-source information data and remote sensing image interpretation expert system based on knowledge base.Five land use types were extracted from remote sensing imageries,that is,water body,agriculture land,rural settlement,bare land and none-use land.The total precision is 80.7% and Kappa index is 0.825.The analysis result of the remote sensing shows that during the past 15 years,water resource dropped off very promptly from 51.77 km2 to 16.65 km2 and bare land reduced greatly more than 60% in Mata lake region.With the development of the economy and agriculture areas,more and more water body and bare land converted to agriculture land use and rural settlement areas.Since last years,the Mata lake has been affected by natural factor,human activity and increasing population.So its land use pattern greatly changed from 1985 to 2000.The information of land use changes provided scientific supports for land planning and environmental protection.展开更多
马踏湖是山东省"两湖一河"碧水行动的重要治理对象.根据地理信息系统对马踏湖进行了边界条件的简化处理以及网格划分,并基于SMS(Surface Water Modeling System)软件,建立了马踏湖二维水流水质模型,选取确定了模型中的参数和...马踏湖是山东省"两湖一河"碧水行动的重要治理对象.根据地理信息系统对马踏湖进行了边界条件的简化处理以及网格划分,并基于SMS(Surface Water Modeling System)软件,建立了马踏湖二维水流水质模型,选取确定了模型中的参数和数值,模拟了不同工况条件下流场和CODCr浓度场.结果表明,6种工况中,工况3和工况6湖区达标面积最大,但其停留时间短,不利于污染物扩散,导致出口浓度不达标;其他工况条件下,出口浓度较小,但是湖区CODCr浓度达标面积比例较低,超过地表水环境质量III类标准.在此情形下提出建立人工湿地对策以满足马踏湖的蓄水条件.展开更多
基金Minist ry of Land and Resources and Geological Survey of China Foundation(121201050511)
文摘Land use and protection has become a global hot spot.How to use land resources is an important topic for the future socio-economic sustainable development.This paper analyzes the land use changes of Mata lake of Shandong province in China,from 1985's to 2000's using multi-temporal remotely sensed data including TM in the 1985s,ETM+in the 2000s and ancillary data such as soil use map,water map etc.The remote sensing imageries were calibrated,registered and geo-referenced,then classified by multi-source information data and remote sensing image interpretation expert system based on knowledge base.Five land use types were extracted from remote sensing imageries,that is,water body,agriculture land,rural settlement,bare land and none-use land.The total precision is 80.7% and Kappa index is 0.825.The analysis result of the remote sensing shows that during the past 15 years,water resource dropped off very promptly from 51.77 km2 to 16.65 km2 and bare land reduced greatly more than 60% in Mata lake region.With the development of the economy and agriculture areas,more and more water body and bare land converted to agriculture land use and rural settlement areas.Since last years,the Mata lake has been affected by natural factor,human activity and increasing population.So its land use pattern greatly changed from 1985 to 2000.The information of land use changes provided scientific supports for land planning and environmental protection.
文摘马踏湖是山东省"两湖一河"碧水行动的重要治理对象.根据地理信息系统对马踏湖进行了边界条件的简化处理以及网格划分,并基于SMS(Surface Water Modeling System)软件,建立了马踏湖二维水流水质模型,选取确定了模型中的参数和数值,模拟了不同工况条件下流场和CODCr浓度场.结果表明,6种工况中,工况3和工况6湖区达标面积最大,但其停留时间短,不利于污染物扩散,导致出口浓度不达标;其他工况条件下,出口浓度较小,但是湖区CODCr浓度达标面积比例较低,超过地表水环境质量III类标准.在此情形下提出建立人工湿地对策以满足马踏湖的蓄水条件.
