文献类型：期刊文献

中文题名：乌兰布和沙漠地区灌水对成龄霸王生长及光合作用的影响

英文题名：Effect of Irrigations on Growth and Photosynthetic Characteristic of Mature Zygophyllum xanthoxylum in Ulanbuh Desert

作者：董雪[1] 刘芳[1] 吕永军[1] 黄雅茹[1] 刘禹廷[1] 赵英铭[1]

第一作者：董雪

机构：[1]中国林业科学研究院沙漠林业实验中心

年份：2017

卷号：45

期号：19

起止页码：155-158

中文期刊名：安徽农业科学

外文期刊名：Journal of Anhui Agricultural Sciences

基金：中央级公益性科研院所基本科研业务费专项(CAFYB B2014MA016);中央级院所基本科研业务专项(CAFYBB2011006-6)

语种：中文

中文关键词：深层坑渗灌;成龄霸王;光合特性;生物量

外文关键词：Deep pit infiltration irrigation;Adult Zygophyllum xanthoxylum;Photosynthetic characteristics;Biomass

分类号：S718.45

摘要：[目的]揭示灌水对成龄霸王生长及光合作用的影响。[方法]采用野外试验,通过对中国林科院沙林中心第一实验场植物园中成龄霸王[Zygophyllum xanthoxylum(Burge)Maxim]进行不同灌水量处理,研究人工深层坑渗灌条件下灌水量[开春水:W_115 kg/株、W_245 kg/株、W_375 kg/株、W_4150 kg/株,埋冬水:W_575 kg/株,无灌溉(CK)]对成龄霸王地上生物量、叶片相对含水量(RWC)、叶片净光合速率(Pn)、蒸腾速率(Tr)和水分利用效率(WUE)的影响。[结果]随着灌水量的增加,成龄霸王地上生物量不断增加;各处理的叶片RWC从大到小依次为W_3、W_2、W_4、CK、W_5、W_1;自然条件和人工灌水条件下,霸王叶片Pn、Tr的日变化均呈"双峰"曲线,且有明显的"午休"现象。各处理Pn日均值从大到小依次为W_3、W_2、W_4、W_1、CK、W_5;Tr日平均值从大到小依次为W_3、W_2、W_1、W_4、W_5、CK。WUE日平均值从大到小依次为W_3、W_2、CK、W_1、W_5、W_4。[结论]综合分析,最适宜的灌水时间是成龄霸王萌芽期,最佳的坑渗灌量为开春水75 kg/株。
[Objective]To reveal the effects of irrigation on growth and photosynthesis of adult Zygophyllum xanthoxylum. [Method]By field test, through different irrigation treatments on Zygophyllum Xanthoxylum in the Experimental Center of Dorestry, CAF, the effects of irrigation amount [Spring irrigation： W1 15 kg/plant,W2 45 kg/plant,W3 75 kg/plant,W4 150 kg/plant, winter irrigation： W5 75 kg/plant, No irrigation （CK） ]on aboveground biomass, RWC, Pn, Tr and WUE were studied under artificial deep pit and subsurface irrigation. [Result]The results showed that with the increase of irrigation water, the ground biomass increasing. Leaf relative water content from large to small were W3, W2, W4, CK, W5, W1. Under natural conditions and artificial irrigation conditions, daily variation of Pn and Tr showed a ＂twin peak＂ curve, and there was obvious ＂midday depression＂ phenomenon. Pn from large to small were W3, W2, W4, W1,CK, W5;Tr from large to small were W3, W2, W1, W4, W5, CK. WUE from large to small were W3, W2, CK, W1, W5, W4. [Conclusion]Comprehensive analysis showed that the optimum irrigation time was the germination period of Zygophyllum xanthoxylum, and the best irrigation treatment was spring irrigation 75 kg/plant.