干旱区生态环境知识资源中心(Arid): 固沙树种梭梭在不同水分梯度下的光合生理特征

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	固沙树种梭梭在不同水分梯度下的光合生理特征
其他题名	Photosynthesis-physiological characteristics of Haloxylon ammodendron under different soil moisture grades
	马全林; 王继和; 纪永福; 刘虎俊
来源期刊	西北植物学报
ISSN	1000-4025
出版年	2003
卷号	23 期号:12 页码:2120-2126
中文摘要	对不同水分梯度下梭梭光合作用的研究发现，地下水位、土壤含水量、灌水量对梭梭的光合具有明显的影响。在1.4m、2.4 m、3.4 m地下水位下，梭梭的光合速率、呼吸作用、量子效率随水位的降低而降低，光补偿点随水位的降低而增大；在滴灌供水时，梭梭的光合速率较对照明显提高，且灌水量越大，梭梭的光合速率越高；半流动沙丘、丘间低地、粘土沙障固定沙丘退化梭梭的光合作用的强弱同其林地土壤水分的高低基本一致。7月，不同水分梯度下的梭梭光合作用均表现出午休现象，9月只有立地条件较差的梭俊发生光合午休，而且9月光合作用要强于7月，说明9月环境条件更有利于梭梭生长。
英文摘要	The photosynthetic rate of Haloxylon ammodendron Bge. under the different soil moisture grades was researched. The results showed the water table, the soil moisture and the irrigated water quantum af-fect the photosynthetic rate of Haloxylon ammodendron obviously. At the water table of 1.4 m, 2.4 m and 3.4 m, the photosynthetic rate,the respiration rate and the apparent quantum efficiency(AQE) decreased with reduce of the water table, but light compensation point(LCP)increased. Compare with CK, the pho-tosynthetic rate of Haloxylon ammodendron by drop irrigation increased obviously. More water quantum, higher the photosynthetic rate of Haloxylon ammodendron Bge. The photosynthetic rate of Haloxylon ammodendron planted on semisand dunes, land between sand dunes and fixed sand dunes with clay sand barrier was enlarged with increase of the soil moisture basically. In July, the photosynthetic rate of Haloxylon ammodendron under the different soil moisture occurs midday rest, but in September only those that environment conditions are worse occur midday rest. Compared to July, the photosynthetic rate of Haloxylon ammodendron in September is stronger, and its environment conditions is more benefit to mat-ter synthesize of Haloxylon ammodendron grown in the arid area.
中文关键词	固沙造林树种 ; 梭梭 ; 光合作用 ; 水分梯度 ; 光合日变化
英文关键词	desert-control tree Haloxylon ammodendron Bge photosynthetic rate the different soil moisture grades daily changes of the photosynthetic rate
语种	中文
国家	中国
收录类别	CSCD
WOS类目	MULTIDISCIPLINARY SCIENCES
WOS研究方向	Science & Technology - Other Topics
CSCD记录号	CSCD:1165584
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/204489
作者单位	甘肃省治少研究所, 武威, 甘肃 733000, 中国
推荐引用方式 GB/T 7714	马全林,王继和,纪永福,等. 固沙树种梭梭在不同水分梯度下的光合生理特征[J],2003,23(12):2120-2126.
APA	马全林,王继和,纪永福,&刘虎俊.(2003).固沙树种梭梭在不同水分梯度下的光合生理特征.西北植物学报,23(12),2120-2126.
MLA	马全林,et al."固沙树种梭梭在不同水分梯度下的光合生理特征".西北植物学报 23.12(2003):2120-2126.