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A research method of alpine marsh wetland

A technology of wetlands and swamps, applied in the field of ecology, can solve the problems of lack of systematic research on gleation swamps, lack of high-resolution environmental change historical records, etc.

Inactive Publication Date: 2019-03-08
CHINA ACAD OF SCI NORTHWEST HIGHLAND BIOLOGY INST
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  • Application Information

AI Technical Summary

Problems solved by technology

Since the 1990s, although there has been preliminary accumulation in the interpretation of Holocene environmental changes and peat deposition dynamics in peat bog pollen, there is a lack of systematic research on gleber bogs, especially the lack of recent research on the historical records of high-resolution environmental changes on a short time scale

Method used

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  • A research method of alpine marsh wetland
  • A research method of alpine marsh wetland
  • A research method of alpine marsh wetland

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1 (establishment sediment age scale)

[0030] Overview of the research area: The typical alpine swamp meadows were selected in Dawutan, Guoluo Prefecture, located in the central and eastern part of the Qinghai-Tibet Plateau, and in the Qinghai Lake Basin in the northeast. Sanjiangyuan alpine marsh wetlands such as figure 2 As shown, the region has a plateau cold climate, and the main vegetation types are alpine meadow, alpine shrub and swampy meadow. The soil is alpine meadow soil, alpine shrub meadow soil and swamp soil. The geographical location is 34°27.821′ north latitude and 100°12.367′ east longitude. Qinghai Lake Swamp Wetland is located in Gangcha County on the north bank of Qinghai Lake. Three typical wetlands are selected along the Yikewulan River, such as image 3 shown. A total of four sample plots were selected, and the latitude and longitude of the sample plots are shown in Table 1.

[0031] Sampling method: In August 2010, the community su...

Embodiment 2

[0055] Embodiment 2 (determining environment proxy index)

[0056] Basis and experimental method for interpreting paleoenvironment by environmental proxy indicators:

[0057] (1) Stable isotopes of organic matter (δ 13 C): After the whole plant sample is dried naturally, it is ground to 100 mesh, and it is burned in oxygen to generate CO by combustion method. 2 . CO 2 The carbon isotopic composition (δ 13 C) It was carried out on a MAT-251 mass spectrometer, the standard used was PDB, and the measurement error was 13 C=[R sample / R standard-1]×1000; among them, R is 13 C / 12 The relative ratio of C, R standard value is the carbon isotope ratio of the international standard material PDB. The relative error of the experimental analysis results is ±0.11‰.

[0058](2) Magnetic susceptibility (MS) and particle size: The determination of magnetic susceptibility and particle size was completed in the Environmental Magnetic Laboratory of the Key Laboratory of Western Environment...

Embodiment 3

[0109] Embodiment 3 (determining the evolution process of ancient vegetation)

[0110] In this example, pollen analysis is used as a means to study the evolution history of paleoclimate and paleoenvironment in the Sanjiangyuan and Qinghai Lake areas since the Holocene.

[0111] Sporopollen extraction method: This article uses the heavy liquid extraction method, and the specific steps are as follows:

[0112] 1) weighing. According to the lithological characteristics of the sample, it was weighed after drying at low temperature.

[0113] 2) Place the samples in a 500ml beaker, add 1 piece of Lycopodium spores to each sample (each piece contains about 27637 Lycopodium spores).

[0114] 3) Add hydrochloric acid. Add 10% dilute hydrochloric acid to the sample to remove carbonate and calcium cement in the sample. Add hydrochloric acid until there is too much hydrochloric acid until no foaming occurs (when adding acid, add it slowly and in small amounts, and then continue to add...

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Abstract

The invention discloses a research method of an alpine marsh wetland, and relates to the technical field of ecology. The method comprises the following steps of establishing a sediment age scale for revealing development characteristics and development of different types of wetlands to enable the wetlands to be coupled with a sedimentation rate and global climate change; determining environmentalsubstitution indexes for revealing paleo-environmental information recorded by sediments in different stratum units of the soil, and preliminarily restoring environmental changes experienced by self-development of various types of wetlands; determining an evolution process of the ancient vegetation to reveal an environmental condition most suitable for wetland vegetation growth; determining the deposition characteristics of main nutrient elements for revealing the deposition characteristics of the main elements in different periods of wetland development. By adopting the method, the characteristics of the high and cold marsh wetland can be scientifically and comprehensively analyzed, and the theoretical guidance can be provided for measures such as environmental protection or development and utilization.

Description

technical field [0001] The invention relates to the technical field of ecology, in particular to a research method for alpine marsh wetlands. Background technique [0002] The study of swamps in my country started in the 1960s, during which the research on swamp deposition and environment was relatively weak. Since the 1990s, preliminary accumulation has been made in the interpretation of Holocene environmental changes and peat deposition dynamics in peat bog pollen, but there is a lack of systematic research on gleber bogs, especially the lack of recent research on the historical records of high-resolution environmental changes in short time scales. Research on the response of wetlands to global changes at home and abroad has found that in recent years, due to changes in global climate and regional climate, especially the continuous high temperature and drought of the climate, the wetland ecosystem in my country has undergone serious degradation, the area of ​​wetlands has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/02
CPCG06Q10/063G06Q50/02
Inventor 刘德梅李红梅陈志国魏海成候光良
Owner CHINA ACAD OF SCI NORTHWEST HIGHLAND BIOLOGY INST
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