Results 1 to 10 of about 67 (64)

Soil and Water Conservation and Ecological Benefits of Forest Ecosystem in New Urban Karst Areas of Central Guizhou Province [PDF]

open access: yes, 2022
[Objective] Soil and water conservation and ecological benefits of forest ecosystem in the new urban karst areas of Guanshanhu District, Guiyang City in Central Guizhou Province were studied to scientifically evaluate the achievements of ecological ...
Dai Zhengjiao   +6 more
core   +1 more source

Application of Ultrasonic Chain Pin Sensor for Soil Wind Erosion Monitoring [PDF]

open access: yes, 2022
[Objective] The application of ultrasonic chain pin sensor in soil wind erosion was studied by experiment to verify the monitoring accuracy and reliability of the equipment for wind erosion in order to provides a theoretical basis for the improvement and
Lei Lei   +3 more
core   +1 more source

Characteristics of Soil Aggregates and Organic Carbon Content for Ecological Restoration Slopes at Xiangjiaba Hydropower Station [PDF]

open access: yes, 2023
[Objective] The effects of ecological engineering restoration technology on soil aggregate stability and organic carbon distribution were analyzed in order to provide a scientific basis for improving soil structure stability and carbon sink function of ...
Duan Xiaoming   +4 more
core   +1 more source

Effects of Elevated Temperature and CO2 Enrichment on Stability of Soil Organic Carbon Storage in Mollisols [PDF]

open access: yes, 2023
[Objective] The effects of climate change on the stability of organic carbon were revealed from the perspective of the molecular structure of organic carbon in order to provide a theoretical basis for clarifying the impact of future climate change on ...
Feng Qian   +6 more
core   +1 more source

Spatial-temporal Evolution and Influencing Factors of Dominant Marginalization of Cultivated Land in Guizhou Province Based on Land Use Change [PDF]

open access: yes, 2023
[Objective] The spatial-temporal evolution pattern and influencing factors of the dominant marginalization of cultivated land in Guizhou Province from 2010 to 2020 were analyzed in order to provide policy guidance for the intensive use of cultivated land
Feng Yingbin, Yang Xiyuan
core   +1 more source

Spatial-temporal Variation of Water Yield in Nanbei Panjiang River Basin Based on InVEST Model [PDF]

open access: yes, 2023
[Objective] The temporal and spatial variation characteristics of water yield and differences in the water yield function for different land use types, soil types, and topography in the Nanbei Panjiang River basin were analyzed in order to provide a ...
Chen Quan   +5 more
core   +1 more source

Water-holding Capacity of Reclaimed Grassland with Different Ages in Karst Regions [PDF]

open access: yes, 2023
[Objective] The water-holding capacity of reclaimed grassland of different ages was studied in order to provide a scientific basis for water retention and soil and water conservation of reclaimed grassland in karst regions.
Li Xuemei   +3 more
core   +1 more source

喀斯特区土壤侵蚀与石漠化协同演变及交互关系

open access: yesShuitu Baochi Xuebao, 2023
为探究喀斯特地区土壤侵蚀、石漠化协同演变规律、驱动因子及主要驱动因子下二者交互关系。采用优化后的RUSLE模型估算贵州省喀斯特地区2005—2015年土壤侵蚀,并利用贵州省全国石漠化普查数据库计算同期石漠化状况,运用地理探测器探究驱动因子以及主要驱动因子下二者交互关系。结果表明:2005—2015年贵州省喀斯特地区土壤侵蚀与石漠化均以中度及以下为主,其中土壤侵蚀中度及以下占比58%以上,而中度及以下石漠化占比达80%以上;时间上二者存在发生时间的异同性,但研究期间,二者均不同程度地趋于好转 ...
何茂林   +4 more
doaj  

岩石裸露与水土流失关系研究现状及石漠化因子研究存在的问题

open access: yesShuitu Baochi Xuebao, 2021
基岩裸露是喀斯特地区的常见现象,形成了类似荒漠景观的"石漠化",而石漠化的发生发展影响了区域土壤侵蚀机理和结果,故需加大石漠化因子(D)与水土流失定量关系研究,以便修正土壤流失方程。因此,在中外文献查阅的基础上,总结了岩石裸露对坡面水土流失的影响相关研究现状。结果表明,岩石裸露对坡面水土流失的影响研究结论较为离散,主要观点可分为2大类:一类观点认为,随着坡面岩石裸露率的增加,水土流失呈线性、二次函数及指数等趋势衰减,其中以指数衰减为主要方式;另一类观点认为,岩石裸露对坡面水土流失的影响具有复杂性,与坡度、
李瑞, 盘礼东
doaj  

喀斯特石漠化过程中小生境及岩性的演替对土壤有机碳的影响

open access: yesShuitu Baochi Xuebao, 2020
为探讨喀斯特石漠化过程中地表小生境及成土母质岩性的演变对土壤有机碳的影响,以不同喀斯特地貌类型的角度出发,分别从贵州普定、兴义、关岭、荔波及印江县选取对应的喀斯特高原(KG)、峰丛洼地(KF)、峡谷(KX)、原始森林(KY)及槽谷(KC)作为研究区域,分析了0—40 cm土壤层(0—10,10—20,20—30,30—40 cm)及土壤与基岩交界面土层的有机碳含量,分别计算土壤有机碳密度及储量,并分析其空间分布特征及演变规律。结果表明:不同石漠化等级下土壤有机碳含量、密度及储量分别为113.18~163.
王兴富   +3 more
doaj  

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