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沿海地区包含重要的潮间带的热带与亚热带的生态系统,具有高产,丰富的动植物多样性和动植物群落独特的带状配列的特点。在孟加拉罗基布尔沿海,选则三个不同地形带(条状陆地,中部和海岸边),并在不同土壤深度(0-10cm和10-45cm)的有植被和裸地中,调查了土壤物化特性包括土壤质地、土壤颗粒度、水分含量、pH值、有机碳和全氮含量。植被地的土壤沙粒比裸地的含量低。在淤泥地和黏土地有相反的结果。海岸造林对土壤粘合物有明显的影响,结果发现土壤颗粒度有增加的趋势。调查了土壤表面,地表下的土壤和沿海土壤的最大土壤含水量分别为20.43%to23.30%,19.53%to22.30%和20.19%to22.96%。而且,由于沿海植被的影响,土壤表面的土壤pH值减少(7.27-6.60),地表下的土壤和沿海的pH值从7.16减少到6.67。在试验地,有植被地的土壤有机碳都高于裸地。由于沿海造林,土壤全氮增加,在陆地土壤表面和地表下的土壤全氮值最高。3表6参36。
Coastal areas contain important intertidal tropical and subtropical ecosystems, with high yield, rich flora and fauna and flora and fauna unique ribbon arrangement features. Three different types of terrain (strip terraces, central and coastal) were chosen along the coast of Rocky Burn in Bangladesh and were surveyed in soils and bare land with different soil depths (0-10 cm and 10-45 cm) Physical and chemical properties include soil texture, soil particle size, moisture content, pH, organic carbon and total nitrogen content. The soil of the vegetation is lower than the bare soil. There is the opposite in silt and clay. Coastal afforestation has a significant impact on the soil binder, the results showed that soil particle size has an increasing trend. The maximum soil water content of soil surface, subsurface soil and coastal soil were investigated from 20.43% to 23.30%, 19.53% to 22.30% and 20.19% to 22.96% respectively. Moreover, due to the influence of coastal vegetation, the soil pH on the soil surface decreased (7.27-6.60) and the soil pH and coastal area pH on the subsurface decreased from 7.16 to 6.67. In experimental sites, the soil organic carbon with vegetation was higher than bare soil. Due to the coastal afforestation, soil total nitrogen increased, and the soil total nitrogen value was the highest on both land and subsurface soil. 3 Table 6 参 36.