Strilske(自然水文纪念碑)盆地系湖泊生态地理条件评价

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Methods of regional constructive-geographical limnology, landscape-limnological analysis, soil-geochemical profiling of lake catchments, GIS-cartographic modeling. Results of the study are presented in the form of a cartographic model of the spatial-typological structure of the lands of the lake catchment. Shooting and substantiation of its geoecological condition, bathymetric map of the lake and morphological-morphometric and hydrological calculations of the LBS. The hydrochemical parameters of the lake were analyzed according to the block of indicators of salt composition, tropho-saprobiological characteristics and substances of toxic action. The lithological composition and capacity of the bottom sediments of the lake are estimated, the graphs of radial migration of chemical elements and compounds at one of the probing points are constructed and the qualitative composition of the lake sapropel is substantiated. Using GIS technologies, a landscape map of the natural-aqual complex of the lake was built. Shooting and landscape-metometric assessment of its morphological structure. Conclusions. The basin system has in the past undergone anthropogenic transformations as a result of reclamation nature management, which has limited the share of surface runoff into the lake. The lake water exceeded the MPC by 1.7 times the chemical oxygen demand, 1.6 times the biological oxygen demand and 2 times the total iron consumption. The lake basin is 65.7% filled with bottom sediments, which are represented mainly by organo-iron sapropel. 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引用次数: 0

摘要

时事性。关于自然保护基金对象的特定湖泊的现有资料,主要是具有当地意义的,仅限于关于形态计量学和水文特征的简要资料、关于水生生物稀有成分的资料和邻近集水区的物种多样性的资料。这种状况不利于保护区的发展,并鼓励对作为国家保护区一部分的湖泊或湖盆系统进行生态和地理调查。目的是评估乌克兰Polissya地区NPF对象地籍需求的湖泊盆地系统Strelske(自然水文纪念碑)的生态和地理状况。区域建构-地理湖沼学方法,景观-湖沼学分析,湖泊集水区土壤-地球化学剖面,gis制图建模。研究结果以湖泊集水区土地空间类型结构的制图模型的形式呈现。拍摄和证实其地质生态条件,湖泊的水深图和LBS的形态-形态计量学和水文计算。根据盐类组成指标、营养盐生物学特性指标和毒性作用物质指标块,分析了该湖泊的水化学参数。估算了湖底沉积物的岩性组成和容量,绘制了其中一个探测点的化学元素和化合物径向迁移图,确定了湖底沉积物的定性组成。利用GIS技术,建立了湖泊自然水体综合体景观图。其形态结构的拍摄与景观计量学评价。过去,由于开垦自然管理,流域系统经历了人为的改造,这限制了地表径流进入湖泊的份额。湖水超过MPC 1.7倍的化学需氧量,1.6倍的生物需氧量和2倍的总铁消耗量。湖盆底部沉积物占65.7%,主要为有机-铁冲积物。湖滨水相的人为负荷最大,这与季节性功能游憩中心的娱乐活动有关。
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Assessment of the Ecological and Geographical Condition of the Basin System Lakes Strilske (Hydrological Monument of Nature)
Topicality. The available information on specific lakes of nature protection fund (NPF) objects, primarily of local significance, is limited to brief information on morphometric and hydrological characteristics, information on the rare component of aquatic organisms and the species diversity of the adjacent catchment areas. This state of affairs does not benefit the development of protected areas and encourages ecological and geographical searches of lakes or lake-basin systems, which are part of the NPF. Purpose is to assess the ecological and geographical condition of the lake basin system Strelske (hydrological monument of nature) for cadastral needs of NPF objects of Polissya region of Ukraine. Methods of regional constructive-geographical limnology, landscape-limnological analysis, soil-geochemical profiling of lake catchments, GIS-cartographic modeling. Results of the study are presented in the form of a cartographic model of the spatial-typological structure of the lands of the lake catchment. Shooting and substantiation of its geoecological condition, bathymetric map of the lake and morphological-morphometric and hydrological calculations of the LBS. The hydrochemical parameters of the lake were analyzed according to the block of indicators of salt composition, tropho-saprobiological characteristics and substances of toxic action. The lithological composition and capacity of the bottom sediments of the lake are estimated, the graphs of radial migration of chemical elements and compounds at one of the probing points are constructed and the qualitative composition of the lake sapropel is substantiated. Using GIS technologies, a landscape map of the natural-aqual complex of the lake was built. Shooting and landscape-metometric assessment of its morphological structure. Conclusions. The basin system has in the past undergone anthropogenic transformations as a result of reclamation nature management, which has limited the share of surface runoff into the lake. The lake water exceeded the MPC by 1.7 times the chemical oxygen demand, 1.6 times the biological oxygen demand and 2 times the total iron consumption. The lake basin is 65.7% filled with bottom sediments, which are represented mainly by organo-iron sapropel. The littoral aqua facies of the lake suffer the greatest anthropogenic load, which is connected with the recreational activities of the seasonally functioning recreation center.
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