玉井地區山坡地冬季之微氣候（第二報）

The Microclimate on Slopeland in Yu-Ching Area during the Winter Season (Second Report)

徐森雄(Sen-Hsiung Hsu)

《中華水土保持學報》 10卷1期 (1979/07) Pp. 171-179

https://doi.org/10.29417/JCSWC.197907_10(1).0011

摘要

本文著重於分析探討玉井地區山坡地冬季期間之微氣候狀態與檬果開花結果之關係。計於玉井鄉層林村（同去年度）與楠西鄉密枝村各選果園一處為試區，進行氣象觀測與結實情形調查。玉井地區之山坡地多係起伏不大之丘陵地，氣象觀測結果顯示彼此間之天候差異不大。檬果之結實與開花期早晚之關係至為明顯，以盛花期者最佳，花期愈遲結果愈差。以玉井氣象資料為準，自花蕾期至幼果期40日內之積溫在750°C，日照在270小時左右者結果較佳，積溫超過800°C或日照時數愈少者結果愈差。若開花後10日內遭遇5°C以下之低溫將嚴重影響結果。果園主管理至為重要，否則即使天候條件良好其產量亦差。

並列摘要

This paper is to describe the microclimatical distribution for the mango 'Orchard on slopeland in Yu-Ching area during the winter season, especially in the mango blooming period. Two experimental fields, Chiu-Tseng-Lin and Mi-Chih were selected. The weather was not significant different between Yu-Chingand those experimental fields. ＂The fruitage of mango was related to its blooming period. The full blooming period showed a best value of fruit number and the later blooming period was the worst in fruitage. The suitable accumulated temperature during the 40 days from flower bud to young fruit was about 750℃ and the sunshine duration in the same period was 270 hours. If accumulated temperature close to 700℃ or over than 800℃ and the sunshine duration less than 200 hours, the fruitage will be influenced. Thesair temperature in initial 10 days during the blooming period are very important. If air temperature below to 5℃, the flower and young fruits will drop severely.