红树林宜林因子研究

综述了温度、盐度、沉积物、潮水浸淹、风浪作用、地貌特征等对红树植物生长的影响。温度是决定着红树植物的纬向分布;盐度、沉积物、潮水浸淹影响着红树植物种类的分布和幼苗的呼吸和发育;风浪和地貌特征影响着红树林幼苗根部的固着。指出滩涂高程和风浪作用是影响红树植物生长的重要因素,直接决定了红树林幼苗存活率。同时认为应该将"3S"技术和野外实地调查相结合,分析宜林因子的临界参数,建立模型,经过实际校验后用于选划红树林宜林地。

A Review on Suitable Factors for Mangrove Plantation

The impacts of physical factors on the growth of mangrove plants, such as temperature, salinity, substratum, tidal inundation, wave strength and landform characteristics, etc, were reviewed in this paper. It has been widely accepted that temperature is the principal control on the latitudinal distribution of mangrove plants, while salinity, substratum and tidal inundation have been identified as factors affecting the distribution of mangrove species and the breathing and development of seedlings. Wave strength and landform characteristics pose influences on the establishment of mangrove seedlings. It was found that tidal height and wave strength were main factors of direct influences on survival rates of mangrove seedlings. It was suggested to select suitable mangrove sites by combining field investigations with 3S technologies （Remote Sensing, Geographic Information System, and Global Position System）, establishing models through identification of threshold values of factors affecting mangrove trees and tested by practical verifications.