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Effects of land use change on hydrological cycle from forest to upland field in a catchment, Japan
Chuan ZHANG, Keiji TAKASE, Hiroki OUE, Nobuhiro EBISU, Haofang YAN
《结构与土木工程前沿(英文)》 2013年 第7卷 第4期 页码 456-465 doi: 10.1007/s11709-013-0218-6
关键词: land-use change hydrological processes upland field catchment forest catchment semi-distributed hydrological model
Analysis of catchment evapotranspiration at different scales using bottom-up and top-down approaches
Xiangyu XU, Dawen YANG,
《结构与土木工程前沿(英文)》 2010年 第4卷 第1期 页码 65-77 doi: 10.1007/s11709-010-0002-9
关键词: catchment evapotranspiration distributed hydrological model water-energy balance model top-down and bottom-up approaches
Jinliang HUANG, Zhenshun TU, Pengfei DU, Qingsheng LI, Jie LIN
《环境科学与工程前沿(英文)》 2012年 第6卷 第4期 页码 531-539 doi: 10.1007/s11783-010-0287-x
关键词: rainfall runoff first flush pollution characteristics urban lawn catchment
Progress of forest certification in China
Wenming LU, Maharaj MUTHOO
《农业科学与工程前沿(英文)》 2017年 第4卷 第4期 页码 414-420 doi: 10.15302/J-FASE-2017185
关键词: China Forest Certification Scheme forest certification government support opportunities and challenges sustainable forest management
Stormwater runoff pollution loads from an urban catchment with rainy climate in China
Liqing LI, Baoqing SHAN, Chenqing YIN
《环境科学与工程前沿(英文)》 2012年 第6卷 第5期 页码 672-677 doi: 10.1007/s11783-012-0447-2
关键词: combined sewer overflow pollution load first flush detention basins
赵宪文
《中国工程科学》 2000年 第2卷 第5期 页码 66-71
从森林火灾成灾的三个基本因子(火源、环境和可燃物)入手,在宏观上对西南地区森林火灾预报方法进行了探讨。在预测林火发生方面,考虑到人为火是发生森林火灾的主要原因,有很大随机性,因而采用了马尔科夫随机过程理论。在分析成灾环境时,采用了与天、地、生相关分析的方法。特别在可燃物的贮量估测方面,用航天遥感数据,提出一套新的框算方法,为在区域的尺度上估测森林火灾给出了有效的、定量的方法,从而提高了可信度。
《农业科学与工程前沿(英文)》 2023年 第10卷 第4期 页码 607-626 doi: 10.15302/J-FASE-2023517
As the common features of agroecosystems, ditches and ponds benefit the irrigation and drainage, as well as intercepting non-point source pollutants. However, most ditch-pond studies have been conducted in lowland areas. To test this source-sink assumption in upland areas, this study made observations on the ecological function of the ditch and pond system in a typical catchment in China. First, the changes in ponds in the catchment were analyzed using high-resolution remote sensing data. Then, the migration of agricultural pollutants in ditches and ponds were analyzed by field sampling and laboratory detection. The results showed that over the past 15 years the length of ditches in the catchment and the number of small ponds (< 500 m2) have increased by 32% and 75%, respectively. The rate of change in nutrient concentrations in the ditches and ponds were mostly from −20% to 20%, indicating ditches and ponds can be both sources and sinks for agricultural pollutants. Lastly, the contributing factors were explored and it was found that ditches and ponds are important sinks in dry season. However, during the rainy season, ditches and ponds become sources of pollutants, with the rapid drainage of ditches and the overflow of ponds in upland areas. The results of this study revealed that the ditches and ponds could be used for ecological engineering in upland catchments to balance drainage and intercept pollutants.
关键词: ditches ponds non-point source pollution mountainous areas nitrogen phosphorus
宋湛谦
《中国工程科学》 2001年 第3卷 第2期 页码 1-6
林产化学工业是将可再生的森林资源经过化学加工生产出各种有用的产品。它是森林资源高效可持续利用的一个重要组成部分。文章介绍我国林产化学工业的现状,并指出今后发展方向,即加强创新研究,开发深加工产品;推进林产化工企业向大型化发展;发展木材制浆造纸和开发木质能源。
《环境科学与工程前沿(英文)》 2022年 第16卷 第3期 doi: 10.1007/s11783-021-1473-8
• Earthworms increase CO2 and N2O emissions in agricultural and forest soil.
关键词: Carbon sequestration Forest soil Cattle manure biochar Greenhouse gas emissions Soil fauna
Floating forest: A novel breakwater-windbreak structure against wind and wave hazards
《结构与土木工程前沿(英文)》 2021年 第15卷 第5期 页码 1111-1127 doi: 10.1007/s11709-021-0757-1
关键词: floating structure breakwater windbreak hydrodynamic CFD
Hai-Bang LY; Huong-Lan Thi VU; Lanh Si HO; Binh Thai PHAM
《结构与土木工程前沿(英文)》 2022年 第16卷 第2期 页码 224-238 doi: 10.1007/s11709-022-0812-6
关键词: soil consolidation coefficient machine learning random forest Relief
Fault diagnosis of spur gearbox based on random forest and wavelet packet decomposition
Diego CABRERA,Fernando SANCHO,René-Vinicio SÁNCHEZ,Grover ZURITA,Mariela CERRADA,Chuan LI,Rafael E. VÁSQUEZ
《机械工程前沿(英文)》 2015年 第10卷 第3期 页码 277-286 doi: 10.1007/s11465-015-0348-8
This paper addresses the development of a random forest classifier for the multi-class fault diagnosis in spur gearboxes. The vibration signal’s condition parameters are first extracted by applying the wavelet packet decomposition with multiple mother wavelets, and the coefficients’ energy content for terminal nodes is used as the input feature for the classification problem. Then, a study through the parameters’ space to find the best values for the number of trees and the number of random features is performed. In this way, the best set of mother wavelets for the application is identified and the best features are selected through the internal ranking of the random forest classifier. The results show that the proposed method reached 98.68% in classification accuracy, and high efficiency and robustness in the models.
关键词: fault diagnosis spur gearbox wavelet packet decomposition random forest
Soil enzyme activities and their indication for fertility of urban forest soil
SHAN Qihua, YU Yuanchun, ZHANG Jinchi, YU Jian
《环境科学与工程前沿(英文)》 2008年 第2卷 第2期 页码 218-223 doi: 10.1007/s11783-008-0037-5
Regional GIS-based evaluation of the potential and supply costs of forest biomass in Sweden
Dimitris ATHANASSIADIS, Tomas NORDFJELL
《农业科学与工程前沿(英文)》 2017年 第4卷 第4期 页码 493-501 doi: 10.15302/J-FASE-2017179
关键词: GIS logging residues heat and-power faci-lities stumpwood
Tanvi SINGH, Mahesh PAL, V. K. ARORA
《结构与土木工程前沿(英文)》 2019年 第13卷 第3期 页码 674-685 doi: 10.1007/s11709-018-0505-3
关键词: batter piles oblique load test neural network M5 model tree random forest regression ANOVA
标题 作者 时间 类型 操作
Effects of land use change on hydrological cycle from forest to upland field in a catchment, Japan
Chuan ZHANG, Keiji TAKASE, Hiroki OUE, Nobuhiro EBISU, Haofang YAN
期刊论文
Analysis of catchment evapotranspiration at different scales using bottom-up and top-down approaches
Xiangyu XU, Dawen YANG,
期刊论文
Analysis of rainfall runoff characteristics from a subtropical urban lawn catchment in South-east China
Jinliang HUANG, Zhenshun TU, Pengfei DU, Qingsheng LI, Jie LIN
期刊论文
Stormwater runoff pollution loads from an urban catchment with rainy climate in China
Liqing LI, Baoqing SHAN, Chenqing YIN
期刊论文
THE SOURCES OR SINKS OF NON-POINT SOURCE POLLUTION: OBSERVATIONS IN AN UPLAND AREA IN THE JINGLINXI CATCHMENT
期刊论文
Cattle manure biochar and earthworm interactively affected CO and NO emissions in agricultural and forest
期刊论文
Dimensionality reduction and prediction of soil consolidation coefficient using random forest coupling
Hai-Bang LY; Huong-Lan Thi VU; Lanh Si HO; Binh Thai PHAM
期刊论文
Fault diagnosis of spur gearbox based on random forest and wavelet packet decomposition
Diego CABRERA,Fernando SANCHO,René-Vinicio SÁNCHEZ,Grover ZURITA,Mariela CERRADA,Chuan LI,Rafael E. VÁSQUEZ
期刊论文
Soil enzyme activities and their indication for fertility of urban forest soil
SHAN Qihua, YU Yuanchun, ZHANG Jinchi, YU Jian
期刊论文
Regional GIS-based evaluation of the potential and supply costs of forest biomass in Sweden
Dimitris ATHANASSIADIS, Tomas NORDFJELL
期刊论文