Results 21 to 30 of about 2,474 (124)
金沙江干热河谷典型区土壤退化机理研究——土壤侵蚀对土壤退化的作用
Shuitu Baochi Xuebao, 2002 云南省金沙江干热河谷典型区土壤侵蚀普遍而严重 ,对土壤退化有关键性影响。通过对该区不同退化土壤的侵蚀状况 ,从土壤侵蚀对土壤退化的空间分布格局 ,土壤侵蚀对土壤退化类型的发生和作用机制 ,探讨了土壤侵蚀对土壤退化的作用和影响。结果表明 :(1)侵蚀和水土流失是造成土壤退化的要因 ,不同侵蚀类型及其强度控制了土壤退化的空间分布 ;(2 )土壤侵蚀对土壤退化的作用机制主要是 :不同土壤侵蚀强度 ,决定了土壤退化发生类型的数量和程度 ;通过对该区几类主要土壤退化类型发生机制进行分析 ,看出土壤侵蚀是以冲刷剥蚀、
何毓蓉 黄成敏 等
doaj +2 more sources
Analysis of Soil Erosion Intensity Change Trajectories and Their Driving Factors in Yunnan Province Based on An Improved Stability Mapping Method [PDF]
[Objective] To elucidate the change trajectories of soil erosion intensity in Yunnan Province from 1990 to 2022, and analyze the types of changes and their driving factors, in order to provide a scientific foundation for effective soil erosion control ...
HUANG Bangmei +4 more
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Nutrient Characteristics and Factors Influencing Surface Soil with Gully Erosion on Sloping Farmland for Low Hilly Terrain in Black Soil Area [PDF]
, 2023 [Objective] The soil nutrient characteristics and influencing factors of surface soil gully erosion for low hilly terrain in the black soil area were studied in order to provide data and theoretical support for the rational use of land resources ...
He Xuyang +7 more
core +1 more source
Shuitu Baochi Xuebao, 2023 为评价小浪底库区30年来土壤侵蚀特征及其影响因素,基于RUSLE模型,估算小浪底库区1990—2020年土壤侵蚀模数,分析土壤侵蚀时空变化特征,并结合地理探测器定量分析植被覆盖度、土地利用类型、海拔、坡度和降雨量等影响因子对土壤侵蚀格局的影响。结果表明:(1)小浪底库区土壤侵蚀模数从1990年的3 150 t/(km2·a)下降至2020年的1 554 t/(km2·a),土壤流失总量减少50.00%。高等级土壤侵蚀持续向低等级侵蚀转变,从1990—2020年,剧烈、极强烈、强烈 ...
余万洋 +5 more
doaj
Application of Ultrasonic Chain Pin Sensor for Soil Wind Erosion Monitoring [PDF]
, 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
Shuitu Baochi Xuebao, 2021 分析薄层黑土区流域尺度土壤养分与土壤侵蚀速率之间的空间分布关系，可为土壤侵蚀退化评价提供重要的科学依据。基于土壤样品采集与分析测定，结合137Cs示踪技术，对比了典型薄层黑土区流域侵蚀区和沉积区的土壤养分含量，明确了流域尺度土壤养分含量及其空间分布对侵蚀—沉积速率的响应。结果表明：（1）在流域尺度土壤侵蚀对土壤养分含量有重要影响，侵蚀部位土壤有机碳（SOC）、全氮（TN）、硝态氮（NO3—N）和速效磷（AP）含量较之沉积部位分别降低27.4%，21.1%，29.2%和54.1 ...
魏晗梅 +3 more
doaj
Shuitu Baochi Xuebao, 1999 在地理信息系统的支持下,采用通用土壤流失方程(USLE)及其修改式估算了海南岛现实土壤侵蚀量和潜在土壤侵蚀量,分析了土壤侵蚀因子R,K,LS在海南岛的表现,得到了海南岛现实土壤侵蚀量和潜在土壤侵蚀量的空间分布特征.研究结果表明:中部山区的现实土壤侵蚀量和潜在土壤侵蚀量均较其它地区大.
肖寒 +3 more
doaj +2 more sources
Predicting Multi-Scenario Land Use Changes and Soil Erosion in the Huaihe River Basin Based on Coupled PLUS-CSLE Model [PDF]
[Objective] Understanding the future temporal and spatial evolution of land use and soil erosion in the Huaihe River Basin is of significant importance for rational and coordinated use of land resources, formulating future soil and water conservation ...
CHEN Lei +8 more
core +1 more source
Ecology and Evolution, Volume 14, Issue 12, December 2024.Greenhouse gas (GHG) emissions from soils play a significant role in contributing to global warming. Vegetation types especially affect soil GHG production. Our findings suggest that the restoration of natural grassland and artificial N‐fixing shrubland like Caragana korshinskii should be encouraged to alleviate GHG emissions, with the practical ...
Jihai Zhou +7 more
wiley +1 more source
Benefit Evaluation of Different Allocation Modes of Soil and Water Conservation Measures in Ta-pieh Mountains Area [PDF]
[Objective] In order to reveal the effect of different soil and water conservation measures on reducing runoff and sediment in Ta-pieh Mountains, optimize the allocation mode of soil and water conservation measures in Ta-pieh Mountains.
JIA Tinghui +4 more
core +1 more source