鲁东沿海丘陵茶园防护林的小气候特征
发布时间：2019-05-21 12:12
【摘要】：近年来山东乳山茶业逐渐兴起,但由于北方冬春季温度低和倒春寒频繁发生,茶叶种植面积逐年减小。如何在低成本管理的基础上提高茶叶产量和品质,成为乳山茶园管理的一大难题。以2007年春季采用水平梯田整地种植的茶园为试验区,以梯田周围营造的4种网格(8 m×80 m,12 m×80 m,20 m×80 m,40 m×80 m)茶园防护林为研究对象,分别在2013年4月、8月和12月,测定风速、空气温度、土壤温度、空气相对湿度及土壤相对湿度,以纯茶园作为对照,进行了小气候因子测定和分析。结果表明:(1)4种防护林均能有效地降低茶园内风速,调节气温、土壤温度和土壤相对湿度,增加空气相对湿度,为茶树生长提供适宜的生态环境;(2)由于区域水分通量和太阳辐射的季节变化,4种防护林的小气候调节效应也表现出一定的季节性差异;(3)主成分分析结果表明,4种茶园防护林中,影响小气候因子的主要因素是气温和土壤温度,其因子负荷量分别为 0.978和0.986,但风速与气温呈极显著相关关系,与土壤温度之间无显著线性关系,因此,风速也能间接地影响林内小气候;(4)8 m×80 m的防护林对小气候的总体调节效应优于其他3种防护林。
[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，
本文编号：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，
本文编号：2482088
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