Results 11 to 20 of about 3,276 (165)

Simulation Experiment on Effect of Surface Cracks Caused by Coal Mining on Soil Moisture Disturbance in Loess-Covered Area [PDF]

open access: yes, 2023
[Objective] The effect of surface cracks caused by coal mining on soil moisture changes in a loess-covered area was studied in order to provide data support for the study of soil moisture changes in coal mining subsidence area.
Fan Zhigang   +5 more
core   +1 more source

Simulation of Soil N2O Emissions Under Different Soil Moisture Conditions by Using Mixed Dynamic Equation [PDF]

open access: yes, 2023
[Objective] Soil moisture has an important impact on N2O emissions. This study attempted to simulate the cumulative process of soil N2O emission under different soil moisture conditions by using a mixed dynamic equation, and to analyze the influence of ...
Duan Shufang   +6 more
core   +1 more source

GIS-based Study of Ecological Water Requirement of Vegetation in Inner Mongolia Autonomous Region [PDF]

open access: yes, 2023
[Objective] The ecological water requirement (EWR) of vegetation in different typical zones for the rational allocation of water resources in the Inner Mongolia Autonomous Region was analyzed and calculated to provide scientific suggestions for water ...
Ge Zheng   +5 more
core   +1 more source

Ecological Protection Effects Provided by Sand Barriers in a Grassland Mining Area [PDF]

open access: yes, 2023
[Objective] The wind protection effectiveness of different sand barriers and their effects on surface soil particle size composition, soil nutrients and vegetation growth werer studied in order to provide a theoretical basis for the optimal selection of ...
Cong Longyu   +5 more
core   +1 more source

Effect of Soil Conditioner Interface Modification on Migration Characteristics of Saline-Alkali Ions in Irrigation Area of Yellow River [PDF]

open access: yes, 2023
[Objective] Through the treatment of hydrophilic and hydrophobic by the conditioner, the influence of different interface characteristics of the conditioner on the soil water and salt transport law was explored, and the improvement mechanism of fly ash ...
Chen Xiangyu   +5 more
core   +1 more source

Characteristics and Response of Soil-leaf Ecological Stoichiometry of Suaeda Microphylla and Apocynum Pictum Under Different Salt Habitats [PDF]

open access: yes, 2023
[Objective] The change trend and main limiting factors of the ecological stoichiometric characteristics of soil and leaves in different saline habitats were analyzed in order to provide basic research data for the study of nutrient limiting factors and ...
Bahebe Lede   +5 more
core   +1 more source

Characteristics of Erosive Rainfall and Its Effects on Runoff and Sediment Yield in a Low Mountain and Hilly Area of Lianyungang City [PDF]

open access: yes, 2022
[Objective] The effects of different rainfall characteristics and different underlying surface conditions on soil erosion and sediment yield were determined in a low mountain and hilly area of Lianyungang City, Jiangsu Province, in order to provide a ...
Cheng Jianmin   +3 more
core   +1 more source

Effects of Desertification on Phosphorus Fractions of Alpine Meadow Soils [PDF]

open access: yes, 2023
[Objective] Soil phosphorus fractions determine the migration and availability of phosphorus during soil evolution. The spatial distribution characteristics of soil phosphorus fractions in alpine meadows under different desertification levels were ...
Gao Yongheng   +5 more
core   +1 more source

辽西半干旱地区春播前土壤墒情变化的研究

open access: yesShuitu Baochi Xuebao, 2004
试验监测了不同种植茬口和玉米地秋后不同处理下土壤含水量变化情况,监测结果表明,春播前玉米地表层土壤含水量分别比谷子和大豆地表层土壤含水量低55%,52%,其他土层深度的土壤含水量也均为玉米地最低,谷子和大豆地较高;秋后玉米地的4种处理方式中,土壤含水量高低依次为覆膜>灭茬>刨茬>留茬,其覆膜处理的表层土壤含水量达到11.76%,覆膜和灭茬处理的土壤含水量随监测时间的延长变化不大,刨茬和留茬处理土壤含水量都随监测时间的延长而下降.
张玉龙 邹洪涛 杨宇 黄毅
doaj   +2 more sources

温带荒漠中温度和土壤水分对土壤呼吸的影响 [PDF]

open access: yes, 2009
荒漠对气候变化具有高度敏感性,深刻认识和量化非生物因子对荒漠生态系统土壤呼吸的影响具有重要意义。采用自动CO2通量系统(Li-8100)监测了梭梭(Haloxylon ammodendron)、假木贼(Anabasis aphylla)和盐穗木(Halostachys caspica)群落生长季土壤呼吸及温度、土壤含水量等,深入分析了水热因子对土壤呼吸的影响。土壤呼吸具有不对称的日格局,最小值出现在8:00,最大值在12:00~14:00。土壤呼吸的季节格局与气温变化基本同步,最小值在生长季末期(10月)
张丽华   +3 more
core  

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