江蘇省冬小麥播種期對氣候要素變化的響應(yīng)

doi:10.3969/2012jms.00**

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江蘇省冬小麥播種期對氣候要素變化的響應(yīng)
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                        10.3969/2012jms.00**
                    
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中圖分類號:S162.53
基金項目:公益性行業(yè)（氣象）科研專項（GYHY200906021）;江蘇省氣象局開放基金項目（K201005）

Response of sowing date of winter wheat to climate change in Jiangsu Province

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利用江蘇省35個氣象臺站1961—2009年冬小麥播種期內(nèi)的氣象觀測資料，采用數(shù)理統(tǒng)計方法，分析了近49 a來冬小麥播種期內(nèi)各氣候要素的變化。結(jié)果表明：江蘇省冬小麥主要播種期內(nèi)的日平均氣溫隨著時間的推移逐漸升高，且相關(guān)顯著，其中淮河以南地區(qū)升高速度更快；秋季穩(wěn)定通過15 ℃的終日總體呈逐年推遲趨勢，盡管部分年際間波動較大；按傳統(tǒng)播期播種到越冬的≥0 ℃有效積溫與年序也呈極顯著正相關(guān)關(guān)系。分析沭陽、淮安、盱眙、濱海、贛榆和徐州6個農(nóng)業(yè)氣象觀測站的冬小麥發(fā)育期資料，及當(dāng)?shù)囟←湶シN至越冬前積溫資料。結(jié)果表明：各地冬小麥播種至越冬≥0 ℃有效積溫總體上逐年增加。此外，冬小麥播種期內(nèi)降水量的波動較大，尤其自1990s中期以來，各地降水量呈逐年遞減趨勢。得出結(jié)論：江蘇省冬小麥應(yīng)適時晚播，并應(yīng)趁墑及時播種。

Abstract:

With statistical method adopted, characteristics of climate change trend in the period of seedtime for winter wheat was analyzed based on the data of 35 meteorological stations from 1961 to 2009 over Jiangsu province. The results indicated that average daily temperature increased gradually in the main sowing period of winter wheat, especially in the south, and that the correlation reached significant level. The last date during which the average daily temperature steadily passed 15 ℃ in autumn had been delayed, although the serious interannual fluctuation existed. The effective accumulated temperature of ≥0 ℃ before overwintering according to the traditional sowing also showed a highly significant increase, and the effective accumulated temperature of ≥0 ℃ before wintering obviously increased year by year at 6 stations ( Shuyang, Huaian, Xuyi, Binhai, Ganyu and Xuzhou) where overwintering date had been recorded. On the other hand, the amount of precipitation in the period of seedtime fluctuated, especially since the mid 1990s, which had progressively decreased annually. In conclusion, winter wheat should be sowed properly later, and taking the advantage of proper soil moisture in Jiangsu province is also important.

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張佩,高蘋,劉彥麗.江蘇省冬小麥播種期對氣候要素變化的響應(yīng).氣象科學(xué),2011,(6):763-769 ZHANG Pei, GAO Ping, LIU Yanli. Response of sowing date of winter wheat to climate change in Jiangsu Province. Journal of the Meteorological Sciences,2011,(6):763-769

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收稿日期:2010-12-20
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抽查舔水白紧大视频,冲喜娘子超甜哒激情五月,亚洲黄色图片偷拍网站,亚洲三级黄片免费播放,91在线观看喷潮红桃,日韩精品在线观看一区二区,久久久久久久久久久久黄色片子,日产精品99久久久久久久久,欧洲亚洲另类图片小说