| 贾宁,王一冰,于静,刘梦迪,陶晨,杨旋.科尔沁沙地五角枫变色气象条件及预报方法研究[J].林业调查规划,2024,49(3):165-170 |
| 科尔沁沙地五角枫变色气象条件及预报方法研究 |
| Meteorological Conditions and Forecasting Methods of Acer truncatumDiscoloration in Horqin Sandy Land |
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| DOI： |
| 中文关键词: 沙地五角枫 枫叶变色 气象阈值 预报因子 枫红指数 |
| 英文关键词: Acer truncatum maple leaf discoloration meteorological threshold forecast factor maple
red index |
| 基金项目:通辽市气象局科技项目(202102). |
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| 中文摘要: |
| 对沙地五角枫近6年红叶数据进行数字化处理,得出枫叶变色率及变色规律;结合气象要素
资料,研究不同变色期的气象阈值条件;利用不同气象要素与枫叶变色率的相关性对枫叶变色率短
期、长期预报方法进行详细研究。研究结果表明:沙地五角枫初红日序为10月1日,大部分枫树在
10月上旬处于斑红,正红日序为10月15日,枫叶进入斑红和正红的时间受逐日气象条件影响较
大;日最低温、日最高温、日均温、日均湿度、日最低地面温度越低,枫叶变色率越高,变色率与日降
水量、气温日较差、日照时数呈微弱相关;近10 d 累积气温越低、日照时数越多、累积湿度越小、累
积降水越少,枫叶变色率越高;长期预报因子为6月平均湿度和9 月平均气温、平均日照时数、平均
最高温度;根据温度阈值建立了枫叶变色因子方程,结合赏枫天气因子建立了枫红气象指数及服务
产品,经检验适用性较好。 |
| 英文摘要: |
| This paper digitized the red leaf data of Acer truncatum in the past 6 years to obtain the discoloration
rate and discoloration law of the maple leaf, and studied the meteorological threshold conditions of
different color change periods in combination with meteorological element data. The correlation between
different meteorological factors and the discoloration rate of maple leaves was used to study the short-term
and long-term forecasting methods of the discoloration rate of maple leaves in detail. The results showed
that the first red day sequence of Acer truncatum was October 1st, most maples were in spotted red in early
October, and the pure red day sequence was October 15th, and the time of maple leaves in spotted red
and pure red was greatly affected by daily meteorological conditions; the lower the daily minimum temperature, daily maximum temperature, daily average temperature, daily average humidity and daily minimum
ground temperature, the higher the discoloration rate of maple leaves, and the discoloration rate was
weakly correlated with daily precipitation, daily temperature range and sunshine hours; the lower the accumulated
temperature, the more sunshine hours, the lower the accumulated humidity and the less accumulated
precipitation in the past 10 days, the higher the discoloration rate of maple leaves; the long-term
forecast factors were the monthly average humidity in June, the monthly average temperature in September,
the average sunshine hours in September, and the average maximum temperature in September; the
discoloration factor equation of maple leaf was established based on temperature thresholds, and the meteorological
index and service products were established in combination with maple appreciation weather
factors, and was tested to be good on applicability. |
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