Study of Soil Nitrogen in Karst Rocky
Desertification Areas: a Literature Review

Zhang, Le; Xiong, Kangning; Wang, Xingfu; Wan, Panteng

doi:10.15244/pjoes/152450

Cited by 4 publications

(4 citation statements)

References 37 publications

(38 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the non-irrigated paddy elds, at the 30 cm depth, NO 3− -N concentrations showed an increasing trend in both non-karst landforms and the peak forest plain but a decreasing trend in the sinkhole area. The reason behind this is that in the sinkhole area, with more developed karst ssures, the water in ltration distance is greater, causing a continuous decrease in NO 3− -N concentration at the 30 cm depth with increased moisture (Zhang et al 2022). In the non-karst landforms and the peak forest plain, the NO 3− -N from the surface is carried down to the 30 cm depth.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

The impact of karst landform types and land uses on the leaching of nitrogen and phosphorus in soil solution

Gong,

Han,

Dai

et al. 2023

Preprint

View full text Add to dashboard Cite

To analyze the impact of karst landform types and land use patterns on the movement of nitrogen and phosphorus in soil solution, we utilized soil solution nitrogen and phosphorus monitoring data from the Huixian Wetland Experimental Area in the Li River Basin from March to December 2021. The study area was divided into three categories based on karst landform types, namely, non-karst landforms, peak-cluster depressions, and peak-forest plains. Additionally, two categories were considered based on land use patterns, namely, paddy fields and uplands. Single-factor variance analysis and Pearson correlation analysis were employed to examine the transportation of soil solution nitrogen and phosphorus at different soil depths during the irrigation and non-irrigation seasons. The results indicate that (1) the concentrations of NO3--N in the soil solution at depths of 30 cm, 60 cm, and 100 cm exhibited significant differences between the irrigation and non-irrigation seasons. The total nitrogen (TN) concentration at a depth of 30 cm also displayed significant differences between the two seasons. Pearson correlation analysis of nitrogen and phosphorus concentrations in the soil solution revealed a significant positive correlation between NO3--N and TN, with a correlation coefficient of 0.666 (p<0.01). (2) The downward migration distance of NO3--N varied among different karst landform types, following the sequence of peak-forest plains > peak-cluster depressions > non-karst landforms. The NH4+-N migration distance followed the order of peak-cluster depressions > peak-forest plains > non-karst landforms. (3) The NO3--N concentration in irrigated paddy fields generally remained at a high level at a depth of 100 cm during the irrigation season. In upland areas, the NO3--N concentration followed a consistent pattern of 30 cm > 60 cm > 100 cm. However, during periods of heavy rainfall, anomalous increases or decreases in concentration were observed at depths of 60 cm and 100 cm.

show abstract

Section: Discussionmentioning

confidence: 99%

“…Other studies have con rmed that rainfall intensity is an important factor in uencing nitrogen losses through surface runoff and deep percolation, signi cantly affecting nitrogen transport (Z.-J. Wang et al 2022).…”

Section: Introductionmentioning

confidence: 98%

The impact of karst landform types and land uses on the leaching of nitrogen and phosphorus in soil solution

Gong,

Han,

Dai

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Karst rock desertification refers to the manifestation form of soil erosion, large areas of bare bedrock, and land degradation caused by Water 2023, 15, 1864 2 of 17 human disturbance in tropical and subtropical humid and subhumid climate conditions and under the natural background of karst development [7]. Even after the national "Ninth Five-Year Plan" to "Thirteenth Five-Year Plan" for the comprehensive management of karstic desertification, significant results have been achieved in the management of stone desertification, and there are numerous nutrient-related research results [8][9][10], but the problem of stone desertification is still serious, and the significance and impact of nutrient export from the epikarst on the desertification environment under different degrees of stone desertification is still unclear. However, the problem of karst desertification is still serious, and the pattern of subsurface nutrient leakage under different degrees of stone desertification is still unclear, and the significance and impact of nutrient export from the epikarst on the stone desertification environment still need to be further studied.…”

Section: Introductionmentioning

confidence: 99%

A Review of Nitrogen Export and Its Eco-Environmental Significance in the Superficial Karst Desertification Zone

Xiong

Zhang

Liu

et al. 2023

Water

Self Cite

View full text Add to dashboard Cite

Epikarst is connected with a “binary” geological structure, and the hydrogeochemical processes are complex. Nutrients play an important role in the restoration of the surface ecosystem in the desertification area, which is prone to loss and leakage, and the transport and transformation of nitrogen is crucial to the growth and development of plants in the ecosystem and the safety of drinking water for the residents. In this study, we reviewed nitrogen research in the past 20 years in the “Web of Science (WOS)” and “China National Knowledge Infrastructure (CNKI)”, and we reviewed nitrogen research in the following areas. From the results of the systematic review, (1) We found that nitrogen-related research literature has been growing over time, and the growth has been faster in the past five years, mainly in the fields of agriculture, public health, and environmental science; (2) In karst water systems, researchers are mostly concerned with the sources of nitrate, distribution characteristics, and pollution of karst water, and the dual isotope techniques of δ15N and δ18O are used to identify these; (3) In karst water systems, surface water bodies and underground rivers are the main objects of study, relatively few studies have been conducted on karst springs, and NO3−-N, NO2−-N, and NH4+-N are the main forms of nitrogen presence. The study of nitrogen in karst water systems ignores the unique subsurface leakage problem of karst areas, and the study of the relationship between nitrogen and nutrient leakage in karst water systems should be strengthened for karst desertification management and ecological restoration. This review may provide some insights for researchers working in related fields.

show abstract

“…These impacts can have negative consequences on agricultural production and the stability and sustainability of ecosystems [11,12]. Nitrogen is an essential nutrient for plant growth and ecosystem functioning, and its cycling is closely linked to soil microbial activity and plant Forests 2023, 14, 1497 2 of 15 productivity [13,14]. However, soil heavy metals can affect nitrogen cycling by altering soil microbial communities, adsorbing nitrogen, and changing nitrogen transformation pathways [15].…”

Section: Introductionmentioning

confidence: 99%

Effects of Heavy Metals on Nitrogen in Soils of Different Ecosystems in the Karst Desertification of South China

Zhang

Xiong

Wan

2023

Forests

Self Cite

View full text Add to dashboard Cite

Nitrogen, as a crucial limiting nutrient in terrestrial ecosystems, plays a vital role in determining land quality. Heavy metals, as drivers of soil substance transformation, are important indicators for assessing ecosystem function. Currently, the relationship between soil nitrogen and heavy metals in karst desertification areas remains unclear. Therefore, this study focuses on the soil of grassland, forest, and agroforestry ecosystems in a karst desertification area to investigate the relationship between heavy metals and nitrogen distribution using ecological stoichiometry. The findings revealed the following: (i) Total nitrogen (TN) and available nitrogen (AN) exhibited the trend of agroforestry * > forest > grassland, while soil microbial biomass nitrogen (SMBN) showed the trend of forest * > grassland * >> agroforestry; (ii) Chromium (Cr), Ferrum (Fe), Niccolum (Ni), and Plumbum (Pb) showed the trend of agroforestry * > grassland > forest, while Cuprum (Cu) demonstrated the trend of agroforestry > grassland > forest, and Zincum (Zn) exhibited the trend of grassland > forest * >> agroforestry. The Nemerow comprehensive pollution index were 0.77 for grassland, 0.69 for forest, and 0.94 for agroforestry; (iii) The sensitivity of soil nitrogen and heavy metals ranked as grassland > agroforestry > forest. The research findings aim to provide a scientific reference for karst desertification control, ecological protection and restoration, and enhancement of ecosystem function.

show abstract

Study of Soil Nitrogen in Karst Rocky Desertification Areas: a Literature Review

Cited by 4 publications

References 37 publications

The impact of karst landform types and land uses on the leaching of nitrogen and phosphorus in soil solution

The impact of karst landform types and land uses on the leaching of nitrogen and phosphorus in soil solution

A Review of Nitrogen Export and Its Eco-Environmental Significance in the Superficial Karst Desertification Zone

Effects of Heavy Metals on Nitrogen in Soils of Different Ecosystems in the Karst Desertification of South China

Contact Info

Product

Resources

About