Revegetation projects significantly improved ecosystem service values in the agro-pastoral ecotone of northern China in recent 20 years.

Effects of land use and land cover change on soil organic carbon storage in the Hexi regions, Northwest China.

Soil properties of apple orchards on China's Loess Plateau

Assessing countrywide soil organic carbon stock using hybrid machine learning modelling and legacy soil data in Cameroon

Assessing the spatial and temporal variability of soil organic matter (SOM) and identifying determinants of its stability are crucial to measure carbon (C) sequestration and emissions and to understand the evolution of soil functionality. In this study, a spatially dense dataset (5207 topsoil samples (0−20 cm) based on a 1 × 1 km grid) was used to produce SOM maps using geostatistical interpolation by kriging methods and to identify the determinants of SOM distribution in an intensive agricultural region of eastern China. The SOM contents were relatively low and ranged from 10 to 20 g kg−1 for 96.6 % of the total study area, indicating low-fertility soil conditions in the study area. Compared with historical soil data, the SOM content differed among different counties, and increased in most parts of Changfeng and Feidong County from 1981 to 2003. The SOM content was significantly impacted by altitude, aspect, pH, soil texture, as well as soil type and land use, but not by slope gradient, topographic wetness index (TWI) or normalized difference vegetation index (NDVI). The increased application of chemical fertilizer and organic manure in paddy and vegetable-based systems likely contributed to SOM accrual during the 22-year period. Agricultural land uses of paddy rice (Oryza sativa) and vegetable production are conductive to soil C sequestration in agricultural soils in eastern China.

Variability and determinants of soil organic matter under different land uses and soil types in eastern China

Storage, pattern and driving factors of soil organic carbon in an ecologically fragile zone of northern China

Soil carbon sequestration and potential sequestration are key issues in global carbon research, as the size of the soil organic carbon (SOC) stocks and their changes over time are important for understanding their role in climate change. In northern China’s agro-pastoral ecotone, we compared SOC data derived from 238 sampling sites during China’s National Soil Inventory in the 1980s with the results of field surveys at 644 sites in 2018 to calculate the changes in SOC stocks between the 1980s and 2018. We found that the mean SOC stock to a depth of 30 cm decreased significantly, from 4.48 kg C m−2 in the 1980s to 3.60 kg C m−2 in 2018, and the total SOC stock decreased from 2793.17 Tg to 2248.34 Tg. This amounted to an average decrease of 27.74 g C m−2 yr−1 over the 30-year study period. Furthermore, we used a land use and cover change transition matrix to quantify the amount of SOC change caused by these transitions; the SOC reduction could be mainly ascribed to overgrazing, grassland reclamation for agriculture, and grassland desertification. Large-scale ecological restoration projects have increased SOC reserves, but not enough to compensate for the loss of SOC caused by factors such as desertification and ecosystem degradation. We also performed regression analysis for the relationship between the change in the SOC stock and the rates of temperature and precipitation change. We found that increasing temperature non-significantly decreased SOC, whereas precipitation was significantly (P

Changes of soil organic carbon stocks from the 1980s to 2018 in northern China’s agro-pastoral ecotone

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

Xiaoping Shi

Author Tools

Chat about Author

Papers

Storage, pattern and driving factors of soil organic carbon in an ecologically fragile zone of northern China

Changes of soil organic carbon stocks from the 1980s to 2018 in northern China’s agro-pastoral ecotone