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
A review on the estimation of Secchi disk depth by remote sensing in inland and nearshore case 2 waters [PDF]
, 2015 自1865年,意大利天文学家Pietro Angelo Secchi发明塞克盘(Secchi disk)以来,使用塞克盘测量水体透明度迄今已有近150 a的历史。透明度(Secchi disk depth)是指放入水中的塞克盘能够看得见的最大深度[1]。它是描述水体光学性质的基本参数之一,也是水质调查中的一个重要指标 ...
施平, 禹定峰, 邢前国
core +1 more source
Shuitu Baochi Xuebao, 2022 准确识别土地利用格局时空演变规律和轨迹特征, 对科学推进该地区生态保护和社会经济高质量发展具有重要意义。采用1990年、2005年和2018年3期土地利用数据构建鄂西南地区土地利用变化轨迹序列, 利用土地利用变化各项指数、弦图可视化、标准差椭圆方法, 从地类总量变化特征、数量变化轨迹特征和空间变化轨迹特征3个方面开展, 揭示近30年来鄂西南地区土地利用格局时空演变特征与变化趋势。结果表明: (1)土地利用总量变化稳定性特征明显。林地和耕地始终是研究区主要土地利用类型, 耕地持续减少, 建设用地持续增加,
左岍, 周勇, 李晴, 王丽
doaj
2001年MW7.8昆仑山地震震后形变观测、机制与青藏高原中北部岩石圈流变：认识与挑战
Dizhen xuebao, 2021 2001年MW7.8昆仑山地震是近半个世纪以来青藏高原发生的最大震级地震。同震破裂产生的巨大应力扰动驱动控制着显著震后形变。二十年尺度的大地测量数据记录了地震后长时间、大范围、时空依赖的震后形变演化过程及差异，揭示了昆仑山地震破裂段复杂的断层分段震后运动学特征、分段摩擦性质差异和青藏高原中北部岩石圈流变性质/结构横向各向异性。本文简要回顾昆仑山地震后基于二十年尺度时序InSAR和GPS的震后形变观测方法和时空特征，特别是时空密集的InSAR观测，是该构造区震后GPS观测的重要补充及其不可替代的观测手段 ...
Dezheng Zhao +6 more
doaj +1 more source
Shuitu Baochi Xuebao, 2023 识别三生空间迁移演化规律并掌握其引发的空间性状改变情况,对优化国土空间布局、提高利用水平影响深远。以黄河流域上游城市群为研究对象,基于转移矩阵对研究区2000—2020年三生空间时空演化规律进行分析,并以此为基础,利用强度分析模型,从三生空间一、二级分类双重视角,就空间演化带来的变化稳定性问题进行讨论。结果表明:(1)20年间,研究区三生空间转移变化活跃但发生数量和规模均呈缩减态势,空间转移以呼包鄂榆和宁夏沿黄城市群两地为主,呈东多西少分布特征,但以生态为主、生产和生活空间为辅的整体格局未发生改变。(2)
黄鑫 +5 more
doaj
Spatial-temporal Changes and Driving Factors of Cultivated Land Intensive Use in Inner Mongolia Autonomous Region from 1985 to 2018 [PDF]
, 2022 [Objective] The spatial and temporal changes in the intensive use of arable land in Inner Mongolia Autonomous Region were studied in order to improve the intensive and sustainable use of arable land resources.
Hao Zhaohui +6 more
core +1 more source
Spatiotemporal Characteristics of Vegetation Cover and Climate Driving Factors in Sichuan Province from 2000 to 2020 [PDF]
, 2022 [Objective] The vegetation change and important climate factors influencing fractional vegetation coverage (FVC) in Sichuan Province were analyzed in order to provide theoretical support for the sustainable development of natural resources in this area. [
Sun Mengxin +4 more
core +1 more source
Shuitu Baochi Xuebao, 2021 研究干旱缺水地区地下水位（埋深）时空动态特征及对土地利用变化的响应，对于加强农业地区土地利用和地下水资源管理具有重要意义。以呼图壁县平原灌区为研究区，基于地统计学和GIS结合技术，应用普通克里金插值拟合研究区2000年、2010年及2018年地下水埋深时空分布，并且利用同期遥感数据解译生成了土地利用类型图，叠加分析不同时期地下水埋深变化与对应时期的土地利用类型转移之间的响应关系。结果表明：呼图壁县地下水埋深的空间变化主要是由地形地貌、气候等结构性自然因素引起的，空间相关性逐年增强，空间异质性逐渐减弱 ...
胡鑫 +4 more
doaj
Spatial and Temporal Changes in Soil Water Erosion in Baisha River Basin from 2007 to 2020 [PDF]
, 2022 [Objective] The spatial-temporal variations of soil water erosion before and after the Wenchuan earthquake in the Baisha River basin of Dujiangyan City, Sichuan Province were assessed to support water source protection efforts and comprehensive control ...
Bao Yuhai +5 more
core +1 more source
Spatial and Temporal Changes and Prediction of Habitat Quality in Key Ecological Function Area of Hu'nan Province [PDF]
, 2022 [Objective] Land use change and habitat quality in Nanyue key ecological function area of Hu'nan Province were studied to reveal the relationship between forest land reduction and habitat quality caused by human activities, in order to promote the ...
Deng Chuxiong +5 more
core +1 more source