Results 11 to 20 of about 3,918 (154)
Zhejiang Daxue xuebao. Lixue ban, 2018 随着经济改革和城市化建设进程的加快，我国的空气质量正面临着空前的压力.识别城市化过程中影响空气质量的风险因子，探究不同城市化与空气质量耦合协调阶段的风险因子及其决定力的差异，有助于政府在发展城市经济的同时合理预防、控制和治理空气污染.根据2015年浙江省各市城市化与空气质量耦合协调度计算结果，将全省划分为协调发展、转型过渡和不协调发展3种区域，运用地理探测器揭示全省不同耦合协调分区的空气质量风险因子.研究表明：(1)不同耦合协调分区的主要风险因子不完全相同；(2)城市化因子通常与年均AQI值正相关 ...
MAXiaowen(马小雯) +5 more
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A Study on Carbon Fixation Capacity and Its Influencing Factors Based on InVEST Model at Wuhu City [PDF]
, 2023 [Objective] The spatial and temporal distribution pattern of carbon storage at Wuhu City, Anhui Province from 2011 to 2021 were analyzed, and the influence of ecological environmental factors, topographic factors, meteorological factors, and land use ...
Chu Yunzhi +9 more
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Shuitu Baochi Xuebao, 2022 气候暖湿化对植被生长及覆盖率乃至土地合理开发利用、生态环境保护均有重要的现实意义。以毛乌素沙地为研究区,基于1959—2019年的气象数据(气温、降水量及蒸发量),运用气候趋势变化、M-K突变和小波周期分析特征变化,并结合生长季归一化植被指数(normalized difference vegetation index, NDVI)值探究其与研究区气象因子间的响应关系。结果表明:(1)研究区内毛乌素沙地年平均气温、年平均降水量、年平均蒸发量分别升高1.7 ℃、11.19 mm和33.82 mm ...
朱永华 +6 more
doaj
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
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Evaluation of Eco-environmental Vulnerability of Pearl River Delta Based on PSR Model [PDF]
, 2022 [Objective] The spatio-temporal evolution characteristics and its reasons of eco-environmental vulnerability in the Pearl River delta were studied in order to provide theoretical basis for regional development.
Ma Wei, Wang Yonghong, Zheng Huiling
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Shuitu Baochi Xuebao, 2023 为掌握科尔沁沙地南缘樟子松造林40多年对土壤水分、盐度的影响。以科尔沁沙地樟子松林地、草地2020年3月至2021年11月土壤、气象数据为基础,采用双累积曲线法(DCM)验证样地选取的合理性,利用空间代替时间法(STM)研究樟子松林地、草地土壤含水量、盐度的变化规律,以及与气象因子关系的差异。樟子松林地改变了土壤纵向剖面水分、盐度分布规律,二者均趋于正"S"形分布;林地有效提高土壤储水量 ...
郎明翰 +4 more
doaj
Transpiration Characteristics of Common Trees and Their Responses to Meteorological Factors in Secondary Forests on Karst Slopes [PDF]
[Objective] To explore the transpiration characteristics of common trees and their responses to meteorological factors in secondary forests on karst slopes.
DAI Quanhou +3 more
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Zhejiang Daxue xuebao. Lixue ban, 2014 利用宁波大榭凉帽山岛的高塔梯度风气象观测资料，分别研究了宁波沿海地区四季的白天和夜间低空（300 m以下）温、湿、风等气象要素的廓线特征.同时以登陆宁波的典型台风“海葵”为例，进一步分析了台风影响过程中温、湿、风等气象要素随高度的变化特征，以及湍流强度和阵风因子等近地层的湍流特性.
DUKun(杜坤) +4 more
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人工藻结皮形成过程中表土非降雨型水分吸收的变化情况 [PDF]
, 2010 在干旱、半干旱地区,表土非降雨型水分吸收对于植物、生物结皮以及一些小型动物都起着非常重要的作用.本研究对库布齐沙漠中各种水分吸收类型进行了调查,并对人工结皮形成过程中水分吸收的变化进行了跟踪监测.结果发现,在实验区,从空气中吸收的水分占表土水分吸收量的25.07%~39.83%,其主要是通过水汽吸附机制进行.相比之下,表土从深层土壤吸收的水分更多,大约占到水分吸收量的60.17%~74.93%.人工结皮的形成促进了表土水分的吸收,但吸收水分的增加并非在接种后或结皮形成后立即表现出来,而是在结皮形成后 ...
兰书斌 +5 more
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Application of Relative Risk of Meteorological Factors in Power Grid Electricity Load Forecasting [PDF]
[Introduction] Accurate and efficient short-term electricity load forecasting is a prerequisite for ensuring the safe and reliable operation of power system, and it is also the basis for the rational arrangement of power generation plans in the power ...
Jie WANG +7 more
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