0086-21-58386256
CavesLIVE is a Distance Learning Adventure created to raise awareness and understanding of caves and karst. Through this experience you will learn about specially adapted animals, fossils, unique cave rock formations (speleothems), and twisting tunnels that lie just below our feet in many areas around the world and e…
The origin of "karst" dates to Pre-Indo-European languages when "karra" meant "stone.". In the area that is now southern Slovenia and northeast Italy, karra changed to "kras" and was used to describe the unusual …
The dynamics of soil nutrition and stoichiometric characteristics of different successional stages during the process of natural restoration in Maolan karst forest vegetation of southwestern China were studied to explore the relationship between them. [Objective] The dynamics of soil nutrition and stoichiometric characteristics of different successional …
Leaf photosynthetic capacity is mainly constrained by nitrogen (N) and phosphorus (P). Little attention has been given to the photosynthetic capacity of mature forests with high calcium (Ca) and ...
An understanding of the enrichment mechanisms of cadmium (Cd) and arsenic (As) in the process of rock weathering and soil formation is essential to develop agriculture according to local conditions.
1 Introduction. The karst areas in China are the largest in the world (Song et al., 2014), and the southwestern region of China is the most concentrated distribution areas of karst (Teng et al., 2020).Currently, the contradiction between population and land is very prominent, and the predatory activities of destroying the vegetation cover of the …
Here, we review how the ecology of karst forest trees is influenced by hydrological, edaphic, and topographic factors that exhibit fine spatial heterogeneity. Comparative analysis of drought tolerance traits including wood density contributes to the assessment of whether karst tree species are more drought-tolerant compared to non …
Similar studies on the species spatial distributions of species and species-habitat associations in other specific forest types (e.g., karst forest) are insufficient due …
Forty-five plots covering a PSD gradient were selected in a subtropical karst forest, southwest China. FNF rates in leaf litter and soil were measured using acetylene reduction assay calibrated ...
approaches have been adopted to explore the forest biodiversi- ty-ecosystem functioning relationships including artificial PSD ex- periments, large-scale inventory surveys and natural PSD gradient
The influence of lithology and slope position on arbuscular mycorrhizal fungi (AMF) communities has been explored in various ecosystems, but there is a limited understanding of these mechanisms in karst regions. This study focused on typical karst hills with contrasting lithologies, specifically dolomite and limestone. Additionally, three …
Figure 12.1.2 Soil and Fractured Bedrock in the Karst Dissolution Process Soils can play a significant role in the karst processes. Soils that are rich in organic …
With implementation of both the Natural Forest Conservation Program (NFCP) and the Conversion of Farmland to Forests Program (CFFP), the fraction of forest area in HKB was increased from near zero to 18.9% during the study period, but the ratio of total water yield (surface and underground) to precipitation varied very little over the annual ...
Background Karst areas in southwestern China exhibit ecological degradation in the form of rocky desertification. Local governments launched large-scale afforestation and other ecological restoration programs to curb this trend. Soil thickness is a key limiting factor for vegetation restoration in Karst areas, but the relationship between …
Karst desertification (KD) is a phenomenon in which the surface of the karst region presents a landscape similar to desertification, which restricts the social development of the karst region. How to develop values based on karst desertification control is the focus of current research, with the continuous promotion of karst desertification control …
The Relative Importance of Niche Process and Neutral Process in the Community Assembly of Subtropical Karst Forest: A Perspective on the Changes of Species Distribution Patterns at Different Scales
evidence suggesting that the N cycle is open in the karst forest, southwest China, process-based investigation of gross soil N transformations is limited. In the current study, gross soil N transformations were investigated ... (Li et al., 2017; Wen et al., 2016). Journal of Geophysical Research: Biogeosciences 10.1002/2017JG003850 LI ET AL ...
Autotrophic microorganisms play a significant role in atmospheric CO2 fixation and soil organic carbon (SOC) sequestration in diverse ecosystems, but little is known about their role in karst forests. To investigate the composition and changes of autotrophic microbial communities during degraded karst forest restoration, the related …
The results show that the major landmarks achieved so far include the following aspects: based on the karst desertification control area, we have elucidated the driving factors of forest ecosystem change, discovered the ecological security pattern of landscape optimization and reconstruction, revealed the internal mechanism of forest …
Using the method of taking space instead of time,the evolution of litterfall accumulation and the characteristics of its carbon pool in the process of natural restoration of karst forest vegetation was studied in the Maolan National Nature Reserve of Guizhou.The results are as follows: the litterfall accumulation reduced in the process of natural restoration,and …
Karst Surface Features; The Nature and Role of Epikarst; Karst Sinkholes. Media Attributions; The characteristics of karst landscapes vary depending on factors such as: soluble bedrock type, climatic environment (more specifically precipitation and temperature), geographic position (both globally and locally), overlying soil materials, …
Karst Around the World. Karst occurs throughout the world (Figure 12.1.4). Approximately 20% of the land area underlain by carbonate bedrock has the potential to form karst, [3] although almost a third of that is considered unsuitable for present day karst development due to unfavorable climate, burial with overlying materials, and low relief. …
Karst Surface Features; The Nature and Role of Epikarst; Karst Sinkholes. Media Attributions; The characteristics of karst landscapes vary depending on factors …
Abstract The purpose of this study is to develop a coupling model to improve the ability of random forest model to accurately predict karst collapse. Therefore, an inventory map consisting of 327 collapse points and 1962 non-collapse points was created. The database also contains 18 influencing factors, ranked with GeoDetector. 16 …
The Southwest China Karst, the largest continuous karst zone in the world, has suffered serious rock desertification due to the large population pressure in the area. Recent trend analyses have indicated general greening trends in this region. The region has experienced mild climate change, and yet significant land use changes, such as …
To understand the temporal responses of soil prokaryotic communities to clear-cutting disturbance, we examined the changes in soil bacterial and archaeal community composition, structure and diversity along a chronosequence of forest successional restoration using high-throughput 16S rRNA gene seque …
In karst areas of China, rocky desertification is widely distributed. There are many types of karst landforms. The ecological foundation is fragile and the forest site condition is poor, which directly affect the sustainable development of forest and the construction of ecological civilization. 22 It is of great significance to study the long-term …
ratios and altitude in plants, soils, and litters in the karst forest ecosystem, and provide insight on the better management of the karst forest ecosystems in Southwest China. Keywords Pseudotsuga sinensis · C:N:P stoichiometry · Elevation gradient · Leaf–litter–soil · Nutrient resorption · Karst mountain region 1 Introduction
Similar studies on the species spatial distributions of species and species-habitat associations in other specific forest types (e.g., karst forest) are insufficient due to a lack of large forest ...
