Construction and application of the diagnostic indicator system of wetland health based on remote sensing
10 Jul 2016-pp 7176-7179
TL;DR: The “Element-Landscape-Society” conceptual model is constructed based on the wetland water, soil and vegetation element, which is consistent with the wetlands ecosystem characteristics, and can provide reference in the monitoring and diagnosis of wetland health.
Abstract: Known as “the kidney of earth”, wetland is one of the most productive ecosystems in the world, with huge environmental functions and ecological benefits. Remote sensing technology can obtain wetland-related parameters at a large scale repeatedly, making large-scale and rapid wetland ecosystem health assessment possible. In this study, we construct the “Element-Landscape-Society” conceptual model based on the wetland water, soil and vegetation element, which is consistent with the wetland ecosystem characteristics. Then as many as 18 indicators were selected and a diagnostic indicator system of wetland health was established based on remote sensing which is suitable for different types of wetlands in different regions. Using Analytical Hierarchy Process (AHP) model, the weights for all the indicators were acquired and this indicator system was applied in the Ruoergai wetland in Sichuan, China. This study can provide reference in the monitoring and diagnosis of wetland health, which would be helpful for the wetland protection and utilization.
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TL;DR: The widespread, severe negative impacts of human activities on Earth's ecosystems over the past few decades have highlighted the importance of continuous and up-to-date monitoring of ecosystems as mentioned in this paper.
Abstract: The widespread, severe negative impacts of human activities on Earth’s ecosystems over the past few decades have highlighted the importance of continuous and up-to-date monitoring of ecosystems hea...
18 citations
Journal Article•
TL;DR: Based on the review of the international and domestic studies of wetland restoration, the emphases of the study on wetland ecological restoration are discussed as discussed by the authors, and it is pointed out that the methodologies, basic theories, applied technologies and demonstration projects of wet land ecological restoration should be studied further to carry out effectively the wetland ecology restoration in China.
16 citations
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TL;DR: A rapid appraisal condition index based on four attributes of wetlands, soil, fringing vegetation, aquatic vegetation and water quality was developed for assessing the health of permanent floodplain wetlands in the Murray-Darling Basin of south-eastern Australia as discussed by the authors.
66 citations
TL;DR: In this article, the landscape status of these wetlands, each including a 100m-wide swath of surrounding land area and the wetland itself, and calculated landscape development intensity (LDI) index values, as used in earlier assessments in Florida, USA.
Abstract: In 2007, the Taiwanese government used the criteria of species richness, degree of wilderness/representativeness/uniqueness, and appropriateness/reasonability to identify 74 wetlands as being of importance. They were ranked according to the order of importance and classified into three levels: wetlands of international, national, and local importance. We examined the landscape status of these wetlands, each including a 100-m-wide swath of surrounding land area and the wetland itself, and calculated landscape development intensity (LDI) index values, as used in earlier assessments in Florida, USA. The LDI index values were ranked and classified into three levels as done by the Taiwanese government. We compared the ranking of the LDI index values with those evaluated by the Taiwanese government and found that there was 67.6% congruency, suggesting that the LDI index can be used to assess the biodiversity status of wetlands. Our results also suggested that the LDI index can be used to assess coastal wetlands. This provides rapid and timely information on landscape development which can prove useful for managing wetlands in Taiwan. However, there was some variability between the two rankings, apparently resulting from the incongruence of some land-use categories used in Florida and Taiwan. It is recommended that Taiwan develop LDI coefficients corresponding to land-use categories based on its own natural and anthropogenic landscapes.
20 citations
"Construction and application of the..." refers background in this paper
...Wetlands are among the most productive ecosystems all over the world, which not only provide a uniquely rich habitat for creatures, but also have a wide range of economic and service functions, such as water conservation, regulation of runoff, water quality purification, and recreation services and so on [1-2] ....
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Journal Article•
TL;DR: Based on the review of the international and domestic studies of wetland restoration, the emphases of the study on wetland ecological restoration are discussed as discussed by the authors, and it is pointed out that the methodologies, basic theories, applied technologies and demonstration projects of wet land ecological restoration should be studied further to carry out effectively the wetland ecology restoration in China.
16 citations
"Construction and application of the..." refers background in this paper
...Wetlands are among the most productive ecosystems all over the world, which not only provide a uniquely rich habitat for creatures, but also have a wide range of economic and service functions, such as water conservation, regulation of runoff, water quality purification, and recreation services and so on [1-2] ....
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TL;DR: Wang et al. as mentioned in this paper found that there were connections between organic matter in soil and vegetation growth, since decomposition of soil organic matter was an important source of soil nutrients and was influenced by the soil water content of the wetland.
Abstract: Scientific assessment of the health of wetland ecosystem is an important prerequisite for wetland management and protection. The Zoige wetland ecosystem is a cold peat wetland ecosystem on the eastern edge of the Tibetan Plateau in southwest China. By measuring organic matter and nutrients from soil samples in the Zoige wetland, we found that there were connections between organic matter in soil and vegetation growth, since decomposition of soil organic matter was an important source of soil nutrients and was influenced by the soil water content of the wetland. We therefore integrated a cluster of geochemical indicators of soil, including organic matter content, total nitrogen, total phosphorus content, total potassium content and humic acid yield, into a conceptual framework for ecosystem health assessment, therefore improving the existing indicator system for the Zoige wetland. We analyzed levels of organic matters and nutriment elements in soil samples from the Zoige wetland simultaneously with other indicators of the assessment system. Compared with the previous assessment work for Zoige wetland, the proposed assessment system showed a more holistic result.
14 citations
"Construction and application of the..." refers background in this paper
...largest plateau wetland in China, having the world's largest and best preserved highland peat swamp, and it is also a typical representative of the wetland high-cold ecosystem of the Qinghai-Tibet plateau [5] ....
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Journal Article•
TL;DR: Based on the review of the international and domestic studies of wetland restoration, the emphases of the study on wetland ecological restoration are disjects its is pormted out that the methodologies basic theor ies, applied technotogies and demonstration proeussed of wet land ecological restoration should be studied further to carry out effectively the wetland ecology restoration in China as mentioned in this paper.
11 citations