Results 1 to 10 of about 2,687 (178)
福建水库空间分布特征:沿海密度高水量少、内陆密度低水量多 [PDF]
, 2018 水库是福建重要的水资源.通过2013-2015年遥感影像结合Google Earth和天地图提取福建水库3353座，分布在81个县区，总面积647.51 km2，约占全省土地面积的0.5%；其中面积≤ 1 km2水库3248座，总面积197.16 km2，面积>1 km2水库105座，总面积450.35 km2.基于经验公式估算总蓄水量188.18亿m3，其中小型水库3078座（91.80%），蓄水总量37.06亿m3（19.69%），大中型水库275座（8.20%），蓄水总量151.12亿m3（80 ...
朱珍香, 杨军
semanticscholar +3 more sources
Water Use Strategy of Reaumuria Songarica Population in Steppe Desert Region Based on Spatial Distribution [PDF]
, 2023 [Objective] The relationship between water adaptation and the distribution pattern of desert shrubs at the regional scale was studied and the process and mechanism of plant population response to environment in arid and semi-arid areas was analyzed in ...
Dong Lei +6 more
core +1 more source
Spatial-temporal Variation of Water Yield in Nanbei Panjiang River Basin Based on InVEST Model [PDF]
, 2023 [Objective] The temporal and spatial variation characteristics of water yield and differences in the water yield function for different land use types, soil types, and topography in the Nanbei Panjiang River basin were analyzed in order to provide a ...
Chen Quan +5 more
core +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2022 立足新发展阶段，统筹平安和发展，建设更高水平的平安法治文明城市。以昆明市呈贡区为例，综合运用核密度估计法、犯罪集中度、空间自相关分析、标准差椭圆法等GIS方法，分析2015、2017、2019年的犯罪数量与犯罪危害程度空间分异规律。结果表明：（1）犯罪数量的空间格局以城市核心区集聚为主，高密度和较高密度集聚区主要分布于交通便捷、经济活动频繁、人员密集的老城区、商业中心及大学城周围居住区。犯罪危害程度在空间上形成龙城片区“单核心”的格局并未被打破，且高密度集聚区的空间分布与犯罪数量的空间分布相似 ...
LIChen(李琛) +4 more
doaj +1 more source
Spatial-temporal Variation and Driving Forces of Water Yield in Harbin City [PDF]
, 2023 [Objective] The spatial-temporal variation characteristics of water yield services in Harbin City, Heilongjiang Province from 2000 to 2020 were determined, and the driving mechanism of the spatial-temporal differentiation characteristics of Harbin City’s
Hu Yuandong, Qi Yuxin
core +1 more source
Driving Force Analysis of Spatio-temporal Changes in Vegetation Coverage in Pearl River Delta Based on Geographic Detector Model [PDF]
, 2023 [Objective] The driving forces of the spatial distribution and spato-temporal changes in fractional vegetation coverage (FVC) in the Pearl River delta were analyzed in order to provide a scientific reference for the protection of the ecological ...
He Chenrui +5 more
core +1 more source
Risk Assessment and Zoning on Supply and Demand of Water Yield Services in Pakistan Section of China-Pakistan Economic Corridor [PDF]
, 2023 [Objective] The supply and demand of water yield services in the Pakistan section of China-Pakistan economic corridor were analyzed, the risk areas for water yield services were identified scientifically, and the risk prevention measures were formulated ...
Cheng Zhenni +4 more
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喀斯特原生天坑植物群落空间格局特征——以云南沾益天坑为例 [PDF]
, 2018 以云南沾益大毛寺原生天坑为例,获取坑内植物群落林木个体相对位置信息,进行角尺度、混交度、林层指数等林木空间结构参数与坑底植物群落空间格局分析,并运用点格局分析方法进行单个种群的空间分布特征以及不同种群间的空间关联性分析.结果表明:大毛寺原生天坑坑底植物群落在空间分布上呈现随机分布,林木物种呈中度混交,林木垂直分层虽较简单,但结构稳定,具有发育成熟的顶极森林群落的空间分布特征;坑底植物群落的种群主要呈聚集分布,种群间呈负关联,且处于同一垂直层次上种群间空间负相关性更强,垂直层次相差越大,空间竞争性越小 ...
江聪 +5 more
core +1 more source
Multi-Functional Spatiotemporal Evolution of Cultivated Land and Its Driving Mechanisms in Poyang Lake Plain [PDF]
, 2023 [Objective] The spatial and temporal evolution patterns and driving mechanisms of multifunctional cropland were analyzed in order to provide support for ensuring food security and promoting the coordinated development of regional multifunctional cropland
Cai Haisheng +4 more
core +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2017 山区环境因素的限制使得农村住房呈现地域性的空间格局，确定农村住房空间分布格局及重要影响因素的关联性成为山区居民地规划管理的核心要素.以金寨县为例，结合高分辨率遥感影像目视解译、点格局分析以及相关分析等方法，通过引入地形要素（海拔、坡度、起伏度）因子，探索大别山区农村住房空间分布格局特征及地形要素的影响.系列实验结果表明：金寨县农村住房点间距离在0~140 m时，住房呈现聚集分布的态势，表明大别山区农村住房之间因公共资源匮乏，受环境条件影响表现出较高的相互依赖性；而农村住房点间距离在140~400 m时 ...
YAOMengyuan(姚梦园) +2 more
doaj +1 more source