The role of Phragmites australis in mediating inland salt marsh migration in a Mid-Atlantic estuary.
The role of Phragmites australis in mediating inland salt marsh migration in a Mid-Atlantic estuary.
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DOI：
10.1371/journal.pone.0065091
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发表时间：
2013
期刊：
影响因子：
3.7
通讯作者：
Smith JA
中科院分区：
文献类型：
--
作者：
Smith JA
许多海平面上升适应计划强调保护邻近的高地，以允许内陆盐沼迁移，但关于这一过程的经验资料很少。使用航空照片从1930年和2006年的特拉华州河口沿海栖息地在新泽西，我记录了沿海森林撤退的速度和内陆盐沼迁移率在101.1公里的未开发的盐沼和森林交错带。在这段时间里，这个生态交错带的森林边缘数量几乎翻了一番。森林平均后退141.2m，盐沼平均内迁41.9m。在研究区域内的森林退缩的变化受到坡度变化的影响。森林退缩量和盐沼迁移量之间的滞后是由于芦苇的存在，芦苇占据了森林和盐沼的交错带。芦苇扩展从这个边缘到森林枯死地区，盐沼移动到内陆和取代芦苇的能力可能会受到盐度在河口范围内的规模和当地的子流域的规模。在远离河口和接近当地潮顶的低盐度区，盐沼的内陆运动最低。这些结果可以更好地预测河口景观中的盐沼迁移，并为适应规划者提供指导，以寻求优先考虑那些在短期内内陆盐沼迁移可能性最大的地方。
Many sea level rise adaptation plans emphasize the protection of adjacent uplands to allow for inland salt marsh migration, but little empirical information exists on this process. Using aerial photos from 1930 and 2006 of Delaware Estuary coastal habitats in New Jersey, I documented the rate of coastal forest retreat and the rate of inland salt marsh migration across 101.1 km of undeveloped salt marsh and forest ecotone. Over this time, the amount of forest edge at this ecotone nearly doubled. In addition, the average amount of forest retreat was 141.2 m while the amount of salt marsh inland migration was 41.9 m. Variation in forest retreat within the study area was influenced by variation in slope. The lag between the amount of forest retreat and salt marsh migration is accounted for by the presence of Phragmites australis which occupies the forest and salt marsh ecotone. Phragmites expands from this edge into forest dieback areas, and the ability of salt marsh to move inland and displace Phragmites is likely influenced by salinity at both an estuary-wide scale and at the scale of local subwatersheds. Inland movement of salt marsh is lowest at lower salinity areas further away from the mouth of the estuary and closer to local heads of tide. These results allow for better prediction of salt marsh migration in estuarine landscapes and provide guidance for adaptation planners seeking to prioritize those places with the highest likelihood of inland salt marsh migration in the near-term.
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DOI：
10.1007/bf02823716
发表时间：
2003-04-01
期刊：
ESTUARIES
影响因子：
--
作者：
Chambers, RM;Osgood, DT;Montalto, F
通讯作者：
Montalto, F
影响因子：
18.3
作者：
Blum, Michael D.;Roberts, Harry H.
通讯作者：
Roberts, Harry H.
影响因子：
5.8
作者：
Engelhart, Simon E.;Horton, Benjamin P.;Toernqvist, Torbjorn E.
通讯作者：
Toernqvist, Torbjorn E.
影响因子：
--
作者：
Lopez, John A.
通讯作者：
Lopez, John A.
影响因子：
2.9
作者：
MEYERSON, AL
通讯作者：
MEYERSON, AL