Results 31 to 40 of about 631 (110)

China's Eco‐Civilisation, Climate Leviathan, and Hobbesian Energy Transition

open access: yesAntipode, Volume 57, Issue 3, Page 830-861, May 2025.
Abstract Scholars have hitherto tended to theorise China's ecological civilisation project either as a form of environmental authoritarianism or as a vision of eco‐socialism. This paper contributes to the conversation by conducting a textual analysis of Chinese scholarly discussions on eco‐civilisation.
David Chen
wiley   +1 more source

HYDROLOGICAL OBSERVATION IN AN EVERGREEN BROAD LEAVED FOREST IN THE WUYI MOUNTAINS [PDF]

open access: yes, 1997
[中文文摘]对武夷山甜槠林成熟林水文学效应的研究结果表明:观测期间,年大气降水量2678.78mm,林内雨量2182.04mm,林冠截留量为496.74mm;林内雨中,穿透雨量2082.08mm,树干茎流99.96mm;到达甜槠林地作用面的林内雨量中,被地表枯枝落叶层截留的雨量为159.84mm,地表径流量11.6mm,地下渗流量109.32mm,其余林内雨量形成土壤含水量增量并由地表物理蒸发、根系吸收以及植物蒸腾所消耗;甜槠林地o~200cm土层水分初渗率78.6mm·min-1,稳渗率15.5mm ...
何建源(福建武夷山国家级自然保护区管理局)   +7 more
core  

Projected Climate Scenarios Reveal an Expanding Suitable Habitat for the Critically Endangered African White‐Backed Vulture Gyps africanus 预测的气候情景揭示了极危非洲白背兀鹫的适宜栖息地不断扩展

open access: yesIntegrative Conservation, Volume 3, Issue 4, Page 398-409, December 2024.
Understanding the potential impacts of projected climate change scenarios on critically endangered species is critical to guide effective conservation planning. Species distribution modelling techniques such as MaxEnt are increasingly becoming important tools for predicting habitat shifts in response to projected climate change scenarios.
Mark Zvidzai   +4 more
wiley   +1 more source

坡面径流侵蚀产沙动力机制比较研究

open access: yesShuitu Baochi Xuebao, 2005
分别利用坡面径流剪切力、坡面径流能耗和坡面径流单位水流功率理论对坡面土壤侵蚀发生过程进行了研究。研究结果表明,坡面径流平均输沙率与坡面径流平均剪切力之间均存在明显的线性关系,试验的土壤抗蚀性参数为178 5g/(Pa·min),径流临界剪切力为0 54Pa。根据径流能耗理论的计算结果表明,径流单宽输沙率和单宽径流能耗之间具有如下的线性关系式:Dr=14 61(ΔE-0 37),表明试验的土壤可蚀性参数为14 61g/J,临界单宽径流能耗为0 37J/(min·cm)。根据径流功率理论的计算结果 ...
李鹏 李占斌 郑良勇 鲁克新
doaj   +2 more sources

黄土坡面土壤侵蚀中溶质随径流迁移的水动力特性研究

open access: yesShuitu Baochi Xuebao, 2008
通过对比分析坡面水流的水动力参数与径流溶质迁移量间的关系,研究了不同地表状况下黄土坡面土壤溶质随径流迁移的水动力学特性,以求深入了解和认识坡面土壤侵蚀中溶质随径流迁移的本质机理。研究结果表明:不同坡面地表状况下,糙率系数和平均水深之比(n/h)与侵蚀过程中随径流迁移的溶质存在一定的关系,径流溶质Br-平均浓度、径流溶质Br-的平均流失率以及径流溶质Br-的相对流失量均随n/h的增加而减小。径流溶质Br-的平均流失率以及径流溶质Br-的相对流失量与水流水动力学参数n/h具有指数关系。
郭太龙, 王全九
doaj  

气候变化及生态建设措施对宁夏典型入黄流域径流变化影响

open access: yesShuitu Baochi Xuebao, 2023
为分析气候变化及植被和淤地坝等生态建设措施对径流变化的影响,选取宁夏典型入黄流域清水河和苦水河为研究对象,采用Pettitt突变方法分析研究流域气象水文和生态建设措施等要素的变异点,基于Budyko理论,通过建立水热耦合控制参数与生态建设措施的多元线性回归方程,构建耦合生态建设措施下的降水-径流模型,并对模型进行适用性评估,采用弹性系数法,量化不同生态建设措施对径流变化的贡献率。结果表明:研究流域径流均呈减小趋势,且年径流突变均发生在2000年;水热耦合控制参数与NDVI和淤地坝指数呈显著的正相关关系 ...
于坤霞   +8 more
doaj  

The Terraced Walls Significantly Influence the Spatial Distribution of Soil Water in Terraced Areas on the Loess Plateau [PDF]

open access: yes
[Objective] Converting slopes into terraces is a crucial soil and water conservation and agricultural measure on the Loess Plateau. Understanding the impact of terraced walls on soil water is conducive to preserving soil water and enhancing terrace ...
BAI Chenyun   +5 more
core   +1 more source

Fetal lower urinary tract obstruction: international Delphi consensus on management and core outcome set

open access: yesUltrasound in Obstetrics &Gynecology, Volume 64, Issue 5, Page 635-650, November 2024.
ABSTRACT Objectives To reach an international expert consensus on the diagnosis, prognosis and management of fetal lower urinary tract obstruction (LUTO) by means of a Delphi procedure, and to use this to define a core outcome set (COS). Methods A three‐round Delphi procedure was conducted among an international panel of experts in fetal LUTO.
H. J. Mustafa   +90 more
wiley   +1 more source

重庆缙云山不同植被类型对地表径流系数的影响

open access: yesShuitu Baochi Xuebao, 2006
为探索影响地表径流系数因素的主次关系,利用灰色理论对重庆缙云山不同植被类型的草本层盖度、枯落物厚度、灌木层盖度和郁闭度影响地表径流的因素进行了灰关联分析。结果表明:所选取的植被状况参数对地表径流系数影响的大小顺序是:草本层盖度(0.7720)〉枯落物厚度(O.7445)〉灌木层盖度(0.6661)〉郁闭度(0.6142);不同植被类型的植被状况对地表径流系数的影响,针阔混交林和常绿阔叶林的植被状况对地表径流系数的影响大,其灰关联度分别为0.6346和0.6185.而楠竹林对地表径流系数的影响最小 ...
张洪江, 孙艳红, 程云, 程金花
doaj  

Enlightenment of rainwater management in foreign countries to sponge city construction in China [PDF]

open access: yes, 2016
介绍我国海绵城市建设的背景,分析海绵城市建设的必要性,讨论海绵城市建设与雨水管理之间的关系,认为可借鉴日本、美国、澳大利亚以及欧洲一些国家的"低影响开发技术"、"水敏性城市设计"、"绿色基础设施建设"等理念和技术,以及一些雨水管理法规与奖励政策,因地制宜地进行城市排水系统改造、雨水管理信息系统建设等,推进我国海绵城市的建设。The background of sponge cities construction in China is introduced,and the necessity of ...
廖朝轩, 高爱国, 黄恩浩
core  

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