Results 1 to 10 of about 8,624 (160)

Spatial-temporal Variation and Driving Forces of Water Yield in Harbin City [PDF]

open access: yes, 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

Analysis on spatial heterogeneity of ecological restoration demand in resource-based cities: taking Jiawang District of Xuzhou city as an example [PDF]

open access: yes, 2022
After a long period of coal resource exploitation in resource-based cities, the imbalance and disharmony between resource development and ecological protection in coal mining areas are prominent.
Huping HOU   +4 more
core   +1 more source

Process and Correlation Between Ecosystem Services Value and Ecological Risk in River Basin [PDF]

open access: yes, 2022
[Objective] The spatio-temporal pattern and interrelationship between the value of ecosystem services and ecological risks in river basins were analyzed in order to ensure healthy and sustainable development of ecosystems, maintain regional ecosystem ...
Bi Shanshan   +5 more
core   +1 more source

Differences in Biomass Estimation in a Feldspathic Sandstone Area by Landsat 8 and Sentinel-2 Data [PDF]

open access: yes, 2022
[Objective] Differences in above ground biomass (AGB) estimation based on remote sensing images with different spatial resolutions were analyzed, and a basis for the selection of different spatial resolution images for remote sensing estimation of AGB in
Chen Junhan   +3 more
core   +1 more source

Effect of Spatial Heterogeneity on the Microbial Community of Daqu, a Fermentation Starter for Chinese Baijiu [PDF]

open access: yes, 2023
The effect of spatial heterogeneity on the microbial community and physicochemical properties during the primary fermentation of Daqu were investigated by high-throughput sequencing technology and conventional detection methods. Nongxiangxing baijiu Daqu
TANG Huifang, HUANG Jun, ZHOU Rongqing, QIN Hui, ZHANG Suyi, DONG Yi, WANG Chao, WANG Xiaojun, MU Yu, PAN Qianglin
core   +1 more source

Supply and Demand of Multi-scale Ecosystem Services and Their Influencing Factors in Hu’nan Province [PDF]

open access: yes, 2023
[Objective] The distribution pattern of ecosystem service supply and demand and their main driving factors were analyzed in order to provide a scientific reference for regional ecological protection practices and ecological environmental improvement ...
Liu Chang   +5 more
core   +1 more source

Analysis of spatial heterogeneity of shop rent influencing factors based on spatial econometrics model: A case study of Hangzhou(基于空间计量模型的商铺租金影响因素空间异质性分析——以杭州市为例)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2023
社会经济发展推动城市商业的繁荣与商铺的增值,但商铺租金的影响机制尚不明确。选取了杭州市1~6级商服用地范围内2 026个具有代表性的底层商铺,运用克里金插值法探索了杭州市商铺租金的空间分异格局,并采用基于空间计量模型的特征价格法,探究了5个分市场下商铺租金影响因素的空间异质性。结果显示,三级医院、大型购物中心、学校、交通设施等商业服务、公共服务设施对商铺租金的影响程度、影响范围具有显著差异;相同的特征变量在城市不同区域,如复合功能区域、商务功能主导区域、居住功能主导区域,以及城市中心区域、城市外围区域 ...
戴豪成(DAI Haocheng)   +1 more
doaj   +1 more source

Land Use Change and Its Carbon Effect in Dongting Lake Basin During 1980—2020 [PDF]

open access: yes, 2023
[Objective] The land use change pattern and its carbon effect in the main grain producing areas were investigated in order to provide a basis for restructuring land use and for low carbon economic development.
Luo Mengyi   +4 more
core   +1 more source

沈阳市郊耕地土壤交换性铁含量的空间异质性

open access: yesShuitu Baochi Xuebao, 2003
利用地统计学和地理信息系统相结合的方法研究了沈阳市郊耕地1991个样本0~20cm耕层土壤交换性铁含量的空间异质性特征,绘制了交换性铁含量的空间分布图,结果表明,土壤交换性铁含量基本符合正态分布,变异函数的最佳理论模型为球状模型,交换性铁含量具有中等的空间相关性(Co与Co C比值为41.3%,空间自相关距离为34.9km),Kriging内插图显示出交换性铁具有较强的空间质异性,其空间异质性主要受成土母质,成土过程和土壤类型等结构性因子的影响。
姜勇 张玉革 等
doaj   +2 more sources

薄层农田黑土速效氮磷钾含量的空间异质性

open access: yesShuitu Baochi Xuebao, 2004
利用地统计学对黑龙江省双城市薄层农田黑土的全碳和速效氮、磷、钾的空间异质性进行了分析,结果表明四者均具有空间异质性。土壤全碳含量的空间异质性最高,主要受黑土层厚度的影响,土壤速效氮磷钾的空间异质性较差,主要受随机因子的影响,占80%以上。全碳和速效氮、磷、钾的空间有效最大相关距离分别为15.7km,4.6km,11.2km,7.1km。土壤全碳与碱解氮存在极显著正相关。
张兴义 隋跃宇 于莉
doaj   +2 more sources

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