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Tidal wetlands various processes between the land, ocean and atmospheric interactions most active transition zone, the structure and function of salt marsh vegetation change can affect global biogeochemical cycles and energy exchange. Gramineae Spartina Spartina alterniflora (Spartina alterniflora) is a perennial herb, suitable for the growth of the broad beach face beach climax with the lower part to bring tide Ministry. Was introduced into China in 1979, along with the expansion of its growing population area, Spartina alterniflora siltation epeirogenic, the beach protection revetment down stains soil improvement, livestock and poultry, and so on, but also brought a more serious ecological, economic and social harm. Spartina alterniflora for the control and management of physical law, chemical and biological control method three methods are very difficult and expensive. Take advantage of the the Spartina alterniflora potential biomass, development of biomass energy, is expected to become one of the effective use and control of invasive alien species Spartina alterniflora most promising ways 3S technology is now widely used in the coastal zone distribution of vegetation, especially in the coastal invasive species investigation and dynamic monitoring. 2006-2008 CBERS-02/02B multispectral remote sensing data sources used in this study, combined with relevant statistics, status quo interpreted classification in remote sensing processing software ENVI 4.5 the Chinese coastal beach Spartina alterniflora space distribution, through the GPS field like point positioning to directly verify and refine the classification results, and the indirect validation references the relevant research results have been published, the last in support of the GIS data synthesis, drawn Spartina alterniflora Distribution Status and population in China's coastal beach area. Samples measured field sampling, comprehensive statistics predecessors research calculated the average biomass of Spartina alterniflora in coastal provinces and the average calorific value. Combination of the throughout our Shoaly total biomass of Spartina alterniflora and biomass estimate of its area results. The results show: the Chinese coastal beach Spartina alterniflora North to the south of Guangxi, Tianjin Beitang mouth Yamaguchi protected areas are distributed, the population of the total area of ??34178 hm2 in. Its annual output of biological amount of 2.05 hundred million tons, annual output of energy of 033 million GJ, equivalent to 1.13 million tons of standard coal (coal equivalent heating value of 29 306 J / g). Easy-harvest use of the ground part of the biological capacity of 1.01 one million tons, 016 million GJ, approximately 0.56 million tons of standard coal can be the use of bio-energy resources. Which, Jiangsu Province Internet of Spartina population size and total storage can account for more than half of the country, accounting for nearly half of the country's total energy storage of the whole plant biomass, aboveground biomass, ground also. The northern region of Liaoning Province, has not been Spartina alterniflora invasion, Jiangsu, Shanghai, Zhejiang and Fujian provinces and one city district with the largest, accounting for 94.22% of the total area of ??the country, and other northern provinces and one city, Guangdong and Guangxi distribution of Spartina alterniflora less account for only 4.02% of the total area of ??Spartina alterniflora and 1.76%. Coast type is the root cause of Spartina alterniflora are unevenly distributed in the provinces, and other factors such as precipitation, temperature, and nitrogen pollution, its also have an impact. In addition, the activities of the different degrees of human coastal beach reclamation interference is Spartina cordgrass our shores with the introduction, invasion, proliferation and changes. Due to the efficiency of photosynthesis mechanism, Spartina Spartina salt marsh ecosystems with high productivity (average biomass of 6007 g/m2) and high-energy storage (average calorific value of 16050 J / g); due mainly associated with asexual reproduction Spartina cordgrass propagated by seed propagation characteristics, in China's coastal regions light beach quickly invasion of colonization, is now widely distributed in the coastal areas of Tianjin the Beitang Koudao Guangxi Yamaguchi protection zone. In addition, the longer growing season advantage of time and space superiority, does not occupy arable land Spartina alterniflora biomass utilization possible. In this study, the use of of CMB satellite remote sensing data on invasive species macro-monitoring and research to provide a valid example, Spartina alterniflora biomass for development at the same time provide a strong basis for data, and provides for the use and protection of our coastal beach resources a scientific basis.
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