{"title":"Sanjiang Plain Marsh Ecological Experimental Station - China","id":{"prefix":"https:\/\/deims.org\/","suffix":"c9ba2a84-6fb3-4061-a9ec-529954b948c8"},"type":"site","created":"2012-12-25T19:31:33+01:00","changed":"2020-12-18T10:57:15+01:00","attributes":{"affiliation":{"networks":[{"network":{"name":"CERN (LTER China)","id":{"prefix":"https:\/\/deims.org\/networks\/","suffix":"4dac034d-92d5-4c06-8e4e-aabafdbcedff"}},"siteCode":"LTER-EAP-CN-29","verified":true},{"network":{"name":"GERI","id":{"prefix":"https:\/\/deims.org\/networks\/","suffix":"c3abdc60-49f1-49db-81fe-863b7dbb21d3"}},"siteCode":null,"verified":true},{"network":{"name":"ILTER","id":{"prefix":"https:\/\/deims.org\/networks\/","suffix":"1aa7ccb2-a14b-43d6-90ac-5e0a6bc1d65b"}},"siteCode":null,"verified":true}],"projects":null},"contact":{"siteManager":[{"type":"person","name":"changchun SONG","email":"songcc@neigae.ac.cn","orcid":null}],"operatingOrganisation":null,"metadataProvider":[{"type":"person","name":"changchun SONG","email":"songcc@neigae.ac.cn","orcid":null}],"fundingAgency":null,"siteUrl":null},"general":{"abstract":"Sanjiang Plain Marsh Ecological Experimental Station (SJM) is located in one of the largest marshes distribution areas, Sanjiang Plain, which is a low plain formed by the Heilongjiang River, Songhua River, Wusuli River. The station (133\u00b031\u2032E\uff0c47\u00b035\u2032N) has an  altitude of ~56 m.a.s.l, belongs to the temperate continental monsoon climate zone, with the mean annual temperature of 1.9\u2103, and annual rainfall of ~600 mm. The area has an annual frost-free period of 125 d and is a typical seasonal frozen area with the freezing and thawing period from early November until the middle of June in the next year. The dominated vegetation composition are Carex lasiocapa, Carex pseudocuraica, Carex meyeriana, Glyceria spiculosa, Deyeuxia angustifolia, and the soil types are mainly meadow bog soil, humus bog soil and gley white paper clay, white pulp meadow soil, etc.The main crops are soybeans and rice in this area.","citation":null,"relatedIdentifiers":null,"status":{"label":"Operational","uri":"http:\/\/vocabs.lter-europe.net\/elter_cl\/10772"},"yearEstablished":1986,"yearClosed":null,"relatedSites":null,"siteName":"Sanjiang Plain Marsh Ecological Experimental Station","shortName":"SJM","siteType":"Stationary land-based site","protectionLevel":null,"landUse":null,"images":[{"url":"https:\/\/deims.org\/sites\/default\/files\/photos\/IMG_3720.JPG","alt":"not defined"},{"url":"https:\/\/deims.org\/sites\/default\/files\/photos\/2557.JPG","alt":"not defined"},{"url":"https:\/\/deims.org\/sites\/default\/files\/photos\/2558.jpg","alt":"not defined"}]},"environmentalCharacteristics":{"airTemperature":{"yearlyAverage":1.9,"monthlyAverage":null,"unit":"\u00b0C","referencePeriod":null},"precipitation":{"yearlyAverage":580,"monthlyAverage":null,"unit":"mm","referencePeriod":null},"biogeographicalRegion":null,"biome":"agricultural","ecosystemType":[{"label":"Agricultural","uri":null}],"eunisHabitat":null,"landforms":null,"geoBonBiome":["Terrestrial"],"geology":null,"hydrology":null,"soils":null,"vegetation":null},"geographic":{"boundaries":"POLYGON ((133.4879 47.5944, 133.5031 47.5914, 133.5032 47.5879, 133.5036 47.5835, 133.5043 47.5819, 133.4936 47.5819, 133.4936 47.5763, 133.4879 47.5763, 133.4879 47.5879, 133.4879 47.5944))","coordinates":"POINT (133.517 47.5833)","country":["China"],"elevation":{"avg":56,"min":55,"max":57,"unit":"msl"},"size":{"value":167,"unit":"ha"},"relatedLocations":null},"focusDesignScale":{"experiments":{"design":"mainly experimentation","scale":"catchment scale"},"observations":{"design":"mainly observation","scale":"plot within catchment"},"observedProperties":[{"label":"acid neutralising capacity","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/10310"},{"label":"agricultural parameter","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/20936"},{"label":"atmospheric parameter","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/20937"},{"label":"available phosphorus","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/22061"},{"label":"biological parameter","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/20940"},{"label":"carbon dioxide flux per soil horizon","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/22083"},{"label":"carbon-to-nitrogen ratio","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/21350"},{"label":"cation exchange capacity","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/22084"},{"label":"conductivity","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/22089"},{"label":"dissolved organic carbon in 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carbon","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/22181"},{"label":"redox potential of water","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/21216"},{"label":"reflected global radiation irradiance","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/22209"},{"label":"respiration potential","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/22213"},{"label":"soil acidity","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/22243"},{"label":"soil evaporation","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/22249"},{"label":"soil gas concentration","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/22250"},{"label":"soil gas flux","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/22251"},{"label":"soil moisture field capacity","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/10396"},{"label":"soil pH","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/22264"},{"label":"soil parameter","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/20944"},{"label":"soil respiration","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/22269"},{"label":"soil solute amount","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/22272"},{"label":"soil solution concentration","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/22274"},{"label":"soil texture","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/22279"},{"label":"thickness of soil horizon","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/22295"},{"label":"total organic carbon","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/22297"},{"label":"water acidity","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/22030"},{"label":"water depth","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/22310"},{"label":"water parameter","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/20945"},{"label":"water reflectance","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/10391"},{"label":"water table","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/30028"},{"label":"water temperature","uri":"http:\/\/vocabs.lter-europe.net\/EnvThes\/22313"}]},"infrastructure":{"accessibleAllYear":true,"accessType":null,"allPartsAccessible":true,"maintenanceInterval":null,"permanentPowerSupply":true,"operation":{"permanent":true,"notes":"500,000.00RMB","siteVisitInterval":null},"notes":null,"collection":[{"label":"Data portal","uri":null}],"data":{"policy":{"url":[{"title":null,"value":"http:\/\/sjm.cern.ac.cn\/meta\/metaData"}],"rights":["The data provider must be offered co-authorship for publications using this dataset at least within the metadata description"],"notes":null}}},"relatedResources":null,"projectRelated":{"lter":{"lterSiteClassification":"Regular Site"}}}}