Results 11 to 20 of about 46 (44)
Lithology modulates soil priming effect via resource limitations and bacterial community structure
Functional Ecology, Volume 40, Issue 1, Page 176-190, January 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract The soil priming effect (PE), triggered by root exudate inputs that stimulates microbial activity and drives significant soil carbon (C) losses in terrestrial ecosystems.
Xinyu Hou +4 more
wiley +1 more source
Integrative Conservation, Volume 3, Issue 3, Page 230-243, September 2024.Tropical secondary forest at early sucessional stage had higher diamter growth rate and mortality rate, however, these forests also are more risked to droughts and high temperatures. Rising temperatures and more frequent droughts may decrease the carbon sink capacity of tropical forest ecosystems. Abstract Tropical forests are major carbon sinks on the
Sai Tun Tun Oo +11 more
wiley +1 more source
Distribution Pattern of Cadmium in the Profile of Shallow Fissure Soil and Its Influencing Factors in Karst Areas with High Geological Background [PDF]
[Objective] To study the vertical distribution pattern of cadmium (Cd) in shallow karst fissure soil, analyze the impacts of various factors on the distribution of Cd in fissures, and provide a scientific basis for future research on the distribution ...
CAI Huayin +6 more
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Structure characteristics of microbial community in acid mine drainage in Shandi River Basin [PDF]
In order to reveal the structural characteristics of microbial communities in acid mine drainage(AMD) under different redox environmental conditions and the interaction between microbial communities and groundwater environment, Select the typical ...
Chunhong ZHAO +7 more
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Influencing Factors of Dissolved Organic Carbon Isotope Determination in Water Samples of a Karst Area by Wet Oxidation Method [PDF]
Due to the high content of HCO3 − , low content of DOC and complex composition in the karst water, the current wet oxidation method for the determination of δ13CDOC needs to be improved.
Gaoyong LAN +4 more
core +1 more source
Shuitu Baochi Xuebao, 2023 为探究贵州表层土壤有机质的空间变异特征及其主要影响因素,使用贵州省第二次土壤普查资料中193个土壤剖面数据,结合贵州省气象资料、土地利用类型图及土壤类型图等资料,运用地统计学和多元回归分析各因素对表层土壤有机质空间变异的解释能力。结果表明:(1)贵州省表层土壤有机质含量范围为0.05%~36.68%,平均含量为5.23%±4.96%,变异系数为94.90%;(2)表层土壤有机质在空间分布上表现出东北部高,西南部较低的格局;(3)半变异函数分析表明,贵州省土壤有机质主要受自然因素影响,海拔、CEC ...
文鑫 +4 more
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, 2017 生长和适应于喀斯特地貌环境的生态系统,即喀斯特生态系统,因人类活动干扰和石漠化进程影响,其结构和功能均发生退化,因此,定位、长期监测喀斯特生态系统的组成、结构、过程和功能,以及人类活动的影响和响应,对研究该类特殊生态系统的格局和动态变化具有重要意义。作为中国科学院生态系统观测网络(CERN)仅有的两个喀斯特台站之一,普定喀斯特生态系统观测研究站的生物监测总目标是开展喀斯特高原常绿落叶阔叶混交林的植被生态学(结构、过程、功能)监测与研究,及其退化植被的恢复生态学示范 ...
倪健 +24 more
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Shuitu Baochi Xuebao, 2002 对贵州喀斯特山区的土壤侵蚀所产生的环境变异作了论述。贵州喀斯特山区的土壤侵蚀不仅使土壤质量发生变异，而且对生态环境、农业生产环境都产生了十分严重的影响。自然植被减少、土地退化、石漠化已成为贵州喀斯特山区环境变异的重要特征。贵州喀斯特山区生态系统结构和功能的重建是治理贵州喀斯特环境变异的根本途径。
林昌虎 朱安国
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Shuitu Baochi Xuebao, 2018 日趋严重的西南喀斯特石漠化问题，已严重威胁该地区的生态环境安全、人民生活和社会经济发展。系统综述了喀斯特石漠化的研究进展，主要针对石漠化概念、石漠化类型界定标准、成因等进行了论述。同时，针对喀斯特地区水土流失的研究动态进行了总结，阐述了石漠化与水土流失的相互关系，重点揭示了当前喀斯特地区地下水土流失研究存在的问题与不足。进而根据当前研究热点和不足进行了展望，提出下阶段的研究重点，即：根据当前工作重心重新制定石漠化类型界定标准，从研究方法和技术上革新，推进喀斯特地下水土流失机理及量化研究 ...
戴全厚, 严友进
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Shuitu Baochi Xuebao, 2017 西南喀斯特区坡耕地特殊的地表、地下双层空间结构，使得岩溶区的土壤侵蚀过程具有特殊性和复杂性，并产生了一系列特殊的环境地质问题，如水土流失、旱涝、石漠化等。开展喀斯特坡地水土流失/漏失研究目的，主要是揭示喀斯特坡地水土流失/漏失过程及驱动机制，为喀斯特石漠化的综合治理及其石漠化生态恢复提供理论依据和技术支撑。同时，系统论述了我国西南喀斯特坡地地表侵蚀和地下漏失过程与机理的最新研究进展，其中地表侵蚀过程与机理都进行了定性和定量化的研究，而地下漏失过程与机理则处于定性描述和室内模拟探索阶段 ...
彭旭东, 戴全厚, 李昌兰
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