S. Matthijs, J. Tack, D. van Speybroeck, N. Koedam
The relationship between soil redox state, sulphide concentration, salinity and spatial patterns of mangrove species distribution was investigated in the mangrove forest of Gazi Bay (Kenya). Field measurements were conducted to examine the relationship between species distribution along a band transect of 280 m and soil redox potential (Eh) and sulphide patterns, as well as the indirectly related ...... hiện toàn bộ
Yoshihiro Mazda, Eric Wolanski, Brian King, Akira Sase, Daisuke Ohtsuka, Michimasa Magi
Field studies of tidal flows in largely pristine mangrove swamps suggestthat the momentum equation simplifies to a balance between the water surfaceslope and the drag force. The controlling parameter is the vegetation lengthscale LE, which is a function of the projected area ofmangrove vegetation and the volume of the vegetation. The value ofLE varies greatly with mangrove species and water depth...... hiện toàn bộ
This study presents data on the biomass and net aerial primaryproductivity (NAPP) of two contrasting East Anglian salt marshes.One site was at Tollesbury, Essex where the marshes are of theestuarine type and are subject to marsh degradation and erosionwhile the other site was 130 km to the north at Stiffkey, Norfolkwhere the barrier-type marshes are still actively developing withno signs of erosio...... hiện toàn bộ
Phương pháp bao bọc Riley (REM) được phát triển với mục đích thiết lập các khu rừng ngập mặn dọc theo các bờ biển có năng lượng cao, các khu vực gia cố bờ và các mố tường nơi mà việc tái sinh tự nhiên không còn xảy ra và các phương pháp trồng cây truyền thống không còn hiệu quả. Các nguyên tắc của REM bao gồm các quá trình tách biệt từng cây giống trong các bao bọc hình ống và sự thích nghi của câ...... hiện toàn bộ
#rừng ngập mặn #phương pháp bao bọc #phục hồi môi trường #tái sinh tự nhiên #kỹ thuật trồng cây
The dependence of dispersion in a tidal creek on the vegetation density in a fringing mangrove swamp is discussed through a numerical model. A secondary circulation prevails everywhere in the tidal creek‐mangrove swamp system and is generated by the overflow into the swamp at every high tide. As a result, dissolved and suspended matter moving with the circulation is trapped in the swamp for a frac...... hiện toàn bộ
The life span of leaves in Bruguiera gymnorrhiza, non-secretor of salt, can be divided into a leaf developing stage, a leaf functioning stage and a leaf senescing stage. The concentrations (mg/g) and the contents (mg/leaf) of Na and Cl increased at the leaf developing stage and remained almost constant at the leaf functioning stage. At the leaf senescing stage, the concentrations of Na and Cl incr...... hiện toàn bộ
Mangrove habitats on Kosrae are divided into three types, i.e., an estuary or delta type, a backmarsh or lagoon type and a coral reef or tidal-flat type. Most of the mangrove forests of Kosrae have been developed during the last 2000 years by accumulating mangrove peat with the gradual sea-level rise of 1 to 2 mm/yr except the landward part of the estuary or delta type. On the other hand, during t...... hiện toàn bộ
Geoffrey M. Smith, Thomas Spencer, Anne L. Murray, Jonathan R. French
Airborne remote sensing offers high-density, spatially-averaged synoptic samples of radiation reflected from a surface which can be used to infer ecological processes and community composition. Unfortunately, the cost of the overheads in terms of time and resources, and scheduling constraints when deriving quantitative information have limited its use in operational monitoring programs. When the c...... hiện toàn bộ
Salt marshes are no longer viewed as intertidal wastelands of little value to anyone. They are now widely recognised as playing a major role in coastal defence, in wildlife conservation on the coast and as a key source of organic material and nutrients vitally important for a wide range of marine communities. This appreciation of the importance of salt marshes has been brought even more sharply in...... hiện toàn bộ
P. Cartaxana, I. Caçador, C. Vale, M. Falcão, F. Catarino
Inorganic nitrogen pools and net mineralization were estimated in three sites of a Tagus estuary salt marsh in Portugal throughout 1 year. Ammonium (NH4
+) was the major form of inorganic nitrogen found in the salt marsh soil. Extractable NH4
+ concentrations showed a marked seasonal pattern with a concentration peak during the hotter months of July/August. The great majority (>99%) of the total n...... hiện toàn bộ