黄龙风景区水生藻类生长影响因素研究

Study on Aquatic Algae Growth Impact Factors at Huanglong Scenic Spot

近年来,黄龙风景区水生藻类呈现加速生长的趋势,其附着钙华表面,死亡后致使钙华表面由黄变黑,严重影响了黄龙自然风景区钙华景观的观赏价值。为定量化探究水藻加速生长的真正原因,采用野外仪器自动监测、手动采样及室内仪器分析相结合的方法并利用SPSS软件对实验数据进行相关性分析。结果发现:黄龙地表水中的磷酸盐浓度、水温两大环境变量与叶绿素浓度呈显著正相关性,是影响水藻生长的主要原因;近年来黄龙风景区水藻加速生长是全球气候变暖这一自然原因与旅游活动导致水体中磷酸盐浓度变化这一人为原因共同作用的结果。

Aquatic algae which attached to travertine surface showed accelerating propagation tread in recent years at Huanglong Scenic spot. Travertine surface color changed from yellow to black when aquatic algae died and landscape ornamental value was impacted seriously. To understand why aquatic algae accelerate growth in recent years,environmental parameter is logged by automatic logger,with water sample collected in situ and analyzed in laboratory for phosphate and nitrate concentration. The experimental data is analyzed by SPSS software for their correlation. The result shows that phosphate concentration,water temperature and Chlorophyll concentration show significant positive correlation and so are the main factors which impact aquatic algae growth. In the end,the conclusion is put forwarded that aquatic algae accelerating propagation is the joint action result of the natural reason of global warm and anthropogenic reason of tourist activity which leads to phosphate concentration changed.