Litter production and decomposition dynamics of Kandelia obovata from a mangrove swamp in Min River estuary [闽江口秋茄红树林凋落物产量及分解动态] - Details

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Abstract：

Using　litter　collection　box　and　litter　bag　techniques,　the　production　and　decomposition　dynamics　of　Kandelia　obovata　from　an　estuarine　mangrove　swamp　in　Min　River　estuary　were　measured　in　2017.　The　results　showed　that　the　annual　litter　production　of　K.　obovata　was　618.79　g•m-2•a-1,　of　which　the　leaf　was　the　most　abundant,　accounting　for　an　average　of　61.2%　of　all　production,　followed　by　fruit,　branch　and　flower,　with　contributions　of　23.7%,　10.5%,　and　4.6%,　respectively.　The　total　nitrogen　(TN)　content　of　litter　was　highest　in　August　2017,　while　the　total　phosphorus　(TP)　content　was　significantly　higher　in　January-March　than　in　other　months.　The　litter　carbon/nitrogen　(C/N)　ratios　were　lowest　in　August,　while　the　carbon/phosphorus　(C/P)　ratios　and　nitrogen/phosphorus　(N/P)　ratios　were　significantly　higher　in　September　than　in　other　months.　During　the　decomposition　of　leaf　litter,　the　C,　N,　P　contents　and　its　stoichiometric　ratios　showed　significant　differences　with　time.　The　TC,　TN,　C/N　and　C/P　of　the　aboveground　groups　were　significantly　different　from　those　of　the　underground　groups.　The　acid　phosphatase　activity　was　significantly　correlated　with　soil　temperature,　soil　electric　conductivity　and　litter　TP　content.　These　results　indicated　that　the　production　and　elemental　content　of　K.　obovata　litter　were　significantly　different　with　seasons;　sedimentation　significantly　affected　the　element　content　during　leaf　litter　decomposition,　and　soil　environment　factors　and　litter　element　content　were　important　factors　controlling　hydrolase　activity.　©　2019,　Science　Press.　All　right　reserved.

Keyword：

Element content; Hydrolytic activity; Kandelia obovata; Leaf litter decomposition; Litter fall production; Min River estuary

Community：

[ 1 ] [Zhang, Y.]Key Laboratory of Humid Sub-tropical Eco-geographical Process of Ministry of Education, Fujian Normal University, Fuzhou, 350007, China
[ 2 ] [Zhang, Y.]School of Geographical Sciences, Fujian Normal University, Fuzhou, 350007, China
[ 3 ] [Zhang, Y.]Research Centre of Wetlands in Subtropical Region, Fujian Normal University, Fuzhou, 350007, China
[ 4 ] [Hu, W.]Key Laboratory of Humid Sub-tropical Eco-geographical Process of Ministry of Education, Fujian Normal University, Fuzhou, 350007, China
[ 5 ] [Hu, W.]Institute of Geography, Fujian Normal University, Fuzhou, 350007, China
[ 6 ] [Hu, W.]Research Centre of Wetlands in Subtropical Region, Fujian Normal University, Fuzhou, 350007, China
[ 7 ] [Luo, M.]Research Centre of Wetlands in Subtropical Region, Fujian Normal University, Fuzhou, 350007, China
[ 8 ] [Luo, M.]College of Environment and Resources, Fuzhou University, Fuzhou, 350007, China
[ 9 ] [Luo, M.]Wetland Ecosystem Research Station of Minjiang River Estuary, State Administration of Forestry and Grassland, Fuzhou, 350007, China
[ 10 ] [Tong, C.]Key Laboratory of Humid Sub-tropical Eco-geographical Process of Ministry of Education, Fujian Normal University, Fuzhou, 350007, China
[ 11 ] [Tong, C.]Institute of Geography, Fujian Normal University, Fuzhou, 350007, China
[ 12 ] [Tong, C.]School of Geographical Sciences, Fujian Normal University, Fuzhou, 350007, China
[ 13 ] [Tong, C.]Research Centre of Wetlands in Subtropical Region, Fujian Normal University, Fuzhou, 350007, China
[ 14 ] [Tong, C.]Wetland Ecosystem Research Station of Minjiang River Estuary, State Administration of Forestry and Grassland, Fuzhou, 350007, China
[ 15 ] [Zhao, L.]Key Laboratory of Humid Sub-tropical Eco-geographical Process of Ministry of Education, Fujian Normal University, Fuzhou, 350007, China
[ 16 ] [Zhao, L.]School of Geographical Sciences, Fujian Normal University, Fuzhou, 350007, China
[ 17 ] [Zhao, L.]Research Centre of Wetlands in Subtropical Region, Fujian Normal University, Fuzhou, 350007, China
[ 18 ] [Chen, K.]Key Laboratory of Humid Sub-tropical Eco-geographical Process of Ministry of Education, Fujian Normal University, Fuzhou, 350007, China
[ 19 ] [Chen, K.]School of Geographical Sciences, Fujian Normal University, Fuzhou, 350007, China
[ 20 ] [Chen, K.]Research Centre of Wetlands in Subtropical Region, Fujian Normal University, Fuzhou, 350007, China
[ 21 ] [Huang, J.]Key Laboratory of Humid Sub-tropical Eco-geographical Process of Ministry of Education, Fujian Normal University, Fuzhou, 350007, China
[ 22 ] [Huang, J.]Institute of Geography, Fujian Normal University, Fuzhou, 350007, China
[ 23 ] [Huang, J.]School of Geographical Sciences, Fujian Normal University, Fuzhou, 350007, China
[ 24 ] [Huang, J.]Research Centre of Wetlands in Subtropical Region, Fujian Normal University, Fuzhou, 350007, China
[ 25 ] [Huang, J.]Wetland Ecosystem Research Station of Minjiang River Estuary, State Administration of Forestry and Grassland, Fuzhou, 350007, China

Reprint 's Address：

[Huang, J.]Key Laboratory of Humid Sub-tropical Eco-geographical Process of Ministry of Education, Fujian Normal UniversityChina

Email：

wahugeo@fjnu.edu.cn

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Source ：

Acta Scientiae Circumstantiae

ISSN： 0253-2468

Year： 2019

Issue： 4

Volume： 39

Page： 1312-1323

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SCOPUS Cited Count： 2

ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 0

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