魯東沿海丘陵茶園防護(hù)林的小氣候特征
發(fā)布時間：2019-05-21 12:12
【摘要】：近年來山東乳山茶業(yè)逐漸興起,但由于北方冬春季溫度低和倒春寒頻繁發(fā)生,茶葉種植面積逐年減小。如何在低成本管理的基礎(chǔ)上提高茶葉產(chǎn)量和品質(zhì),成為乳山茶園管理的一大難題。以2007年春季采用水平梯田整地種植的茶園為試驗(yàn)區(qū),以梯田周圍營造的4種網(wǎng)格(8 m×80 m,12 m×80 m,20 m×80 m,40 m×80 m)茶園防護(hù)林為研究對象,分別在2013年4月、8月和12月,測定風(fēng)速、空氣溫度、土壤溫度、空氣相對濕度及土壤相對濕度,以純茶園作為對照,進(jìn)行了小氣候因子測定和分析。結(jié)果表明:(1)4種防護(hù)林均能有效地降低茶園內(nèi)風(fēng)速,調(diào)節(jié)氣溫、土壤溫度和土壤相對濕度,增加空氣相對濕度,為茶樹生長提供適宜的生態(tài)環(huán)境;(2)由于區(qū)域水分通量和太陽輻射的季節(jié)變化,4種防護(hù)林的小氣候調(diào)節(jié)效應(yīng)也表現(xiàn)出一定的季節(jié)性差異;(3)主成分分析結(jié)果表明,4種茶園防護(hù)林中,影響小氣候因子的主要因素是氣溫和土壤溫度,其因子負(fù)荷量分別為 0.978和0.986,但風(fēng)速與氣溫呈極顯著相關(guān)關(guān)系,與土壤溫度之間無顯著線性關(guān)系,因此,風(fēng)速也能間接地影響林內(nèi)小氣候;(4)8 m×80 m的防護(hù)林對小氣候的總體調(diào)節(jié)效應(yīng)優(yōu)于其他3種防護(hù)林。
[Abstract]:In recent years, the tea industry in Rushan, Shandong Province, has gradually risen, but due to the low temperature in winter and spring and the frequent occurrence of cold in spring in northern China, the planting area of tea has decreased year by year. How to improve tea yield and quality on the basis of low cost management has become a difficult problem in Rushan tea garden management. The tea garden planted in horizontal terraces in spring 2007 was used as the experimental area, and four kinds of tea garden shelterbelts (8 m 脳 80 m, 12 m 脳 80 m, 20 m 脳 80 m, 40 m 脳 80 m) were built around the terraces in April, August and December 2013, respectively. Wind speed, air temperature, soil temperature, air relative humidity and soil relative humidity were measured and analyzed with pure tea garden as control. The results showed that: (1) the four protective forests could effectively reduce the wind speed in the tea garden, adjust the air temperature, soil temperature and soil relative humidity, increase the air relative humidity, and provide a suitable ecological environment for the growth of tea plants; (2) due to the seasonal variation of regional water flux and solar radiation, the microclimate regulation effects of the four protective forests also showed some seasonal differences; (3) the results of principal component analysis showed that the main factors affecting microclimate factors in four kinds of tea garden shelterbelts were air temperature and soil temperature, and their factor loads were 鈮，
本文編號：2482088
[Abstract]:In recent years, the tea industry in Rushan, Shandong Province, has gradually risen, but due to the low temperature in winter and spring and the frequent occurrence of cold in spring in northern China, the planting area of tea has decreased year by year. How to improve tea yield and quality on the basis of low cost management has become a difficult problem in Rushan tea garden management. The tea garden planted in horizontal terraces in spring 2007 was used as the experimental area, and four kinds of tea garden shelterbelts (8 m 脳 80 m, 12 m 脳 80 m, 20 m 脳 80 m, 40 m 脳 80 m) were built around the terraces in April, August and December 2013, respectively. Wind speed, air temperature, soil temperature, air relative humidity and soil relative humidity were measured and analyzed with pure tea garden as control. The results showed that: (1) the four protective forests could effectively reduce the wind speed in the tea garden, adjust the air temperature, soil temperature and soil relative humidity, increase the air relative humidity, and provide a suitable ecological environment for the growth of tea plants; (2) due to the seasonal variation of regional water flux and solar radiation, the microclimate regulation effects of the four protective forests also showed some seasonal differences; (3) the results of principal component analysis showed that the main factors affecting microclimate factors in four kinds of tea garden shelterbelts were air temperature and soil temperature, and their factor loads were 鈮，
本文編號：2482088
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