Dec 2021. Dan Dumitriu. PDF | Any landscape that develops on soluble rocks is called karst. The typical karst landforms, such as sinking streams, enclosed depressions, and... | Find, read and cite ...
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The Forest Plan Standards and Guidelines for Karst Resources (2008 Forest Plan) outline a management strategy and define a process, which requires a karst landscape …
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However, few reports have focused on rainstorm sediment events (RSE) based on long series, high-frequency signals in karst small watersheds. Present study assessed the process characteristics of RSE and analyzed the response of specific sediment yield (SSY) to environmental variables using random forest and correlation …
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On the one hand, ecological forests and agroforestry have been developed on a large scale in karst desertification control, which has improved the ecosystem's function and the supply capacity of ecosystem services. However, there is a lack of systematic research on the vulnerability and resilience, structure and stability, ecological …
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ondary forest stage, and the old-growth forest stage are representatives during the natural restoration of the degraded karst vegetation (Yu et al. 2000; Zeng et al. 2007). The restoration process is slow, usu-ally taking more than 50 years to restore shrubbery into an old-growth forest (Yu et al. 2000). During
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Karst caves are caves that are primarily formed through solutional processes and most are hosted in carbonate bedrock. The size definition for a cave is …
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Karst ecosystems or karst biota refers to all the plants and animals living in, or using, karst. This includes the flora and fauna of surface epikarst cavities, cave …
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Wang SJ, Li RL, Sun CX, Zhang, DF, Li FQ, Zhou DQ, Xiong KN, Zhou ZF (2004) How types of carbonate Rock Assemblages constrain the distribution of Karst Rocky Desertified land in Guizhou Province, PR China, Phenomena and Mechanisms. ... S., Liu, X., Liu, Y., Long, J. (2010). Changes of Soil Enzyme Activities in the Process of Karst Forest ...
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The total karst area (buried, covered, and exposed carbonate rock areas) in China is approximately 3.44 × 10 6 km 2, which is about 36 % of China's total land area and 15.6 % of world's karst area (Jiang et al., 2014).The karst region in southwestern China is one of the most extensive karst areas in the world, which is distributed across eight …
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The authors' spatial point pattern analyses detected the existence of surprising spatial structures, such as double‐cluster and superposition patterns, and they allowed for a detailed quantification of their properties, and are confident that a combination of advanced point pattern analysis with field data will allow for significant advances in …
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The IGCP379 project (Karst Processes and the Carbon Cycles) established 18 karst dynamic system observation sites under different karst types and estimated the atmospheric CO 2 consumption of karstification in China based on field observation data (Yuan, 1999). Karstification is the process of carbonate rocks dissolution and …
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The satellite-based SIF data exhibited an overall positive trend for a large proportion of the global karst area since the start of the new millennium (Figs. 1, S4).The mean annual greening trend was equivalent to 0.0004 W m −2 μm −1 sr-1 yr −1.Areas with a significant increase in vegetation SIF (p < 0.05) covered approximately 31.1% of global …
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Further, afforestation consumes large amounts of water, which impacts water supply in karst areas. In this study, we used GIS and statistical analyses to determine rocky desertification ...
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Karst sinkholes are naturally enclosed funnel-shaped depressions that are the prime diagnostic features of a karst landscape (Figure 12.2.8). These features can range in size from a few meters in diameter up to a kilometer or so in size. In European literature karst sinkholes are typically called 'dolines'.
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Descriptions as early as the seventeenth century reported the rocky karst mountains as an area of sparse forest or vegetation cover 22, ... Liu, J., Li, S., Ouyang, Z., Tam, C. & Chen, X ...
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Gross nitri cation rate in the karst. fi. forest was 7.24 ± 0.44 mg N kg 1 d 1, which was about 935% higher than that in the nonkarst forest (0.70 ± 0.51 mg N kg 1 d 1). Similarly, the rates of DNRA and gross NO3 immobilization were signif-icantly higher in the karst forest, where the rates were 178% and 1668%.
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A multi-technology study of evapotranspiration was conducted on the tropical seasonal forest in Nonggang Karst of Guangxi. From January 2019 to June 2020, three independent methods, including the eddy covariance method (EC), resistance method and Penman–Monteith method (PM), were used to estimate the annual …
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Here, we reviewed the research progresses on plant adaptability in karst regions, including drought, high temperature and light, high-calcium stresses responses …
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Guangxi Key Laboratory of Karst Ecological Processes and Services, Huanjiang Observation and Research Station for Karst Ecosystems, Chinese Academy of Sciences, Huanjiang, China. Correspondence. Dejun Li. Email: [email protected]; [email protected] Search for more papers by this author
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Aims Soil phosphorus (P) cycling in karst regions is mainly regulated by microbial activities. Natural restoration has been widely adopted in the degraded karst regions of southwest China. However, the response of functional genes and microbial communities involved in soil P cycling to revegetation has not been well characterized. …
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This result indicated the karst soil in southern China was very barren and the soil available C, N, and P nutrients for plants were low. Compared with those of other trees in the same karst area (Zeng et al., 2015), although plant P content was similar, but C and N contents were lower of the Masson pine forests studied. It showed that, compared ...
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In the process of sustainable management it is important to determine the status of soil fertility on karst regions (Deng and Jiang, 2011; Li et al., 2013), because the soil fertility is of ...
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Karst is a variety of landscapes and phenomena formed on the surface and underground by the dissolution of soluble rocks by water [].The East Asian region is one of the three major karst type areas in the world [].Karst desertification (KD) is a phenomenon in which the surface of the karst region presents a desertification-like landscape, due to …
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The Grain-for-Green Program in China aims to restore sloping karst cropland severely degraded by intensive agriculture to secondary forest. Heterotrophic respiration (Rh) is a major process of carbon release from soils and is associated with the sequestration of soil organic carbon (SOC).
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Karst landscapes have experienced rapid turnover in recent decades due largely to the overlap of intense human activity on the fragile karst ecosystems. Many …
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Karst is an area of land made up of limestone. Limestone, also known as chalk or calcium carbonate, is a soft rock that dissolves in water. As rainwater seeps into the rock, it slowly erodes. Karst landscapes can be worn away from the top or . dissolved from a weak point inside the rock.. Karst landscapes feature caves, underground streams and sinkholes on the surface.
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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 ...
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Six sites are selected in karst forests in southwest China (Fig. 1).These areas are characterized by typical karst landscapes. To avoid the interference of human activities, the 6 selected sites are all located in karst nature reserves (Table 1).For each site, at least three plots (20 m × 30 m) were established in the middle of hillslopes in karst forests.
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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 …
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This model, previously utilized in studies examining the relationship between ecosystem structure and function, is well-suited for researching multifaceted relationships within complex systems (Sutton-Grier et al., 2010; Li et al., 2022b). Karst regions are among the most ecologically vulnerable areas globally, with karst topography accounting ...
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