| 郑伟尉,刘兴泉,徐凯.自然生草对梨园小气候生态因子和果实品质的影响研究[J].中国南方果树,2013,42(5): |
| 自然生草对梨园小气候生态因子和果实品质的影响研究 |
| Effect of Sod Culture on Ecological Factors in Orchard Microclimate and Fruit Quality of Pear |
| 投稿时间：2013-06-14 修订日期：2013-07-20 |
| DOI： |
| 中文关键词: 生草 梨园 生态因子 果实品质 |
| 英文关键词:Sod Culture pear orchard ecological Factors fruit quality |
| 基金项目:浙江省农业技术推广基金委项目“果园种草养羊模式与技术的机理研究” |
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| 中文摘要: |
| 以盛果期‘翠冠’为试材，研究了梨园自然生草和清耕条件下叶片光合特性、冠层间反射光谱成分、气温、土壤温度及果实品质的差异。结果表明，自然生草与清耕处理的叶片光合日变化在春、夏两季表现出相同的作用规律，但夏季清耕处理的光合“午休”现象更严重。自然生草处理显著提高了叶片的光合速率、蒸腾速率、光能利用效率，而水分利用效率、蓝紫光和红橙光强度、红光/远红光比值则低于清耕处理。自然生草还显著降低了夏季冠层最高温度、平均温度和土壤温度。自然生草显著增加了梨园的单果重、产量，分别比清耕对照高了17.6%、20.2%。 |
| 英文摘要: |
| The experiment was conducted to study the variation of leaf photosynthetic characteristics, reflectance spectroscopy composition, air temperature, soil temperature and fruit quality of 10-year ‘Cuiguan’ pear planted in different managements by clean tillage and sod culture. The results showed leaf diurnal variation of photosynthesis in spring and summer displayed the same function pattern, however, there was more severe midday depression of photosynthesis observed in sod culture. The rate of photosynthesis and transpiration，light use efficiency were obviously improved by sod culture, but water use efficiency, blue-purple light intensity, red-orange light intensity, and red/far red ratio in the sod culture system was lower than that of clean tillage. The highest air temperature, mean air temperature, and soil temperature were also decreased in the sod culture system. Individual fruit weight, yield in sod culture was improved, ie. 17.6%、20.2%. |
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