绿洲农田沙害时空变化特征。
Characteristics of oasis farmland wind-sand disaster variation with time and space.
光照强度在杏树行间的分布具有时空变化特征。
The light intensity had characteristics of temporal and spatial variation.
近30余年来南极和邻近地区温度的时空变化特征。
The space-time characteristics of the temperature change in Antarctic and its vicinity in the last 30 years .
概述了1992年以来西安地区的重力场时空变化特征。
Space-time variation of gravity in Xi'an since 1992 is summarized.
分析了淮河流域水资源的数量和质量现状及其时空变化特征。
The quantity, quality status, and temporal and spatial change of water resources of Haihe river basin are analyzed.
同时对间作和单作田土壤温度时空变化特征进行了对比分析。
The temporal and spatial variation features of soil temperatures of intercropping field and those of monoculture field were compared and analyzed.
研究了夏季象山港海区颗粒有机碳(poc)的时空变化特征及其与海水理化因子的关系。
This paper, the discussion and analyses of the characteristics on spatiotemporal variations of particulate organic carbon and the relation between seawater physicochemical factors and POC were made.
通过对不同时段和不同监测点环境监测数据的对比分析，研究蓟运河干流地表水质的时空变化特征。
The temporal and spatial characteristics of surface water quality in Jiyun river are analyzed based on environmental measurement data.
土壤侵蚀分布具有明显的时空变化特征，研究其时空变化规律对于科学地进行土壤侵蚀防治具有重要意义。
Distribution of soil erosion has obvious characters of space-time change. Researching its space-time change law has important significance for scientific prevention of soil erosion.
通过建立研究区LUCC幅度、LUCC数量和空间变化模型以及趋势与状态指数模型，很好的表现了研究区LUCC的时空特征。
By establishing mathematical models in the range, quantitative and spatial dynamic change, trend and state index of LUCC, the spatial-temporal characteristics of LUCC can be deeply studied.
应用统计方法分析了淮阴区空气质量SO2、NO2、TSP的浓度时空分布的季节变化特征。
The characteristics of spatiotemporal seasonal changes of SO2 and NO2 and TSP in Huanyin are analyzed by statistical methods.
利用冰川积累量和树木年轮代用资料，分析了中国西部地区近300年来气候干湿变化的时空特征。
The ice core and the tree ring proxy data are employed to analyze the temporal and spacial characteristics of dry and wet climatic changes in western China in recent 300 years.
同时在对西安市SO_2浓度时空分布特征分析的基础上，对其特异变化趋势的产生原因进行了初步探讨。
While on the basis of analyse on spatial and temporal characters of SO_2 Concentration in Xi 'an city, the reasons for the trend of changes in the initial exploration are carried out.
然后，分析了网络化下客流分布变化的原因，着重研究了网络客流分布的时空特征和变化规律。
Then, it analyses the reasons for the changes of the flow distribution, focuses on the time-space distribution characteristics and change rules of the network passenger flow.
本文结合实践中地籍变更的特点，提出了基于特征变化状态的时空数据模型。
This paper sets forward a new spatiotemporal data model based on the states of the changing features according to the character of land registration change.
本文用数学方法系统地检测了从早期智人到现代人时期中国人颅骨测量性特征的时空变化规律。
The purpose of this study is to analyse the bine and space changes of thecraniometric traits from early Homo sapiens to modem man in China.
在此基础上对低温冷害指数进行经验正交分解和小波分析，得到其时空变化规律及多时间尺度特征。
By experience orthogonal function analysis and wavelet analysis on chilling damage indices, it showed spatial-temporal variation in the regulation and multiple-time-scale characteristics.
地理特征对象是时空数据组织的基本单元，而事件是导致时空数据发生变化的根本原因。
The feature is an essential element that comprises spatiotemporal data information and the event is a fundamental factor that result in changing spatiotemporal data.
选择科尔沁沙地典型流动沙丘作为研究对象，分析了流动沙丘土壤水分的时空变化以及土壤水分特征常数的空间变化规律。
This paper analyzes the spatial and temporal variety regulation of soil moisture and soil moisture characteristic constants on mobile dune in Horqin sandy land.
文章以西安市为研究区域，通过对遥感影像和统计资料进行分析，得到了西安城市增长变化的时空特征。
This paper take Xi 'an city as the study area and through remote sensing image analysis and statistics, obtained Xi 'an city growth change characteristics in spatial distribution and temporal.
利用1983~2003年土地统计资料，运用数理统计分析方法，选取土地利用动态变化相关模型，对湖南南县20年土地利用变化的时空特征进行了分析。
The temporal and spatial characteristics of land use change in Nanxian County of Hunan Province was analyzed according to the materials from 1983 to 2003.
从33个农业气象试验站土壤湿度实测资料出发，探讨了近20年黑龙江省土壤水储量变化趋势及时空特征。
The soil moisture data from 33 agro-meteorological stations are employed to investigate the linear trend of soil water storage of Heilongjiang Province, north of Northeast China in recent 20 years.
因此，黄土-古土壤序列中元素含量的分布、化学综合参数等地球化学特征都对环境变化有直接的指示意义，代表了该区域化学风化的强度及时空规律。
Accordingly, the distribution of elements content and the chemical parameter all can show the variety of environment and intension of weathering in the Weihe Valley.
利用遥感数据分析得到的研究区域的土地利用变化数据，总结了研究区域城市建成区扩展的时空特征：在1979-1989年间，四个城市建成区扩展速度均较小；
Remote sensing images are used to monitor the urban built-up area expansion from 1979-2004. The spatial-temporal patterns of these cities are: during 1979-1989, the expansion rates are all low;
利用遥感数据分析得到的研究区域的土地利用变化数据，总结了研究区域城市建成区扩展的时空特征：在1979-1989年间，四个城市建成区扩展速度均较小；
Remote sensing images are used to monitor the urban built-up area expansion from 1979-2004. The spatial-temporal patterns of these cities are: during 1979-1989, the expansion rates are all low;
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