干旱区生态环境知识资源中心(Arid): 贵阳喀斯特公园南石林秋季藓类植物的持水特性

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	贵阳喀斯特公园南石林秋季藓类植物的持水特性
其他题名	Water Retention Capacity of Autumn Mosses in South Stone Forest of Guiyang Karst Park
	申家琛 1; 张朝晖 1; 王慧慧 1; 黄欢 1; 王智慧 2
来源期刊	生态与农村环境学报
ISSN	1673-4831
出版年	2017
卷号	33 期号:10 页码:907-912
中文摘要	藓类植物是恶劣环境条件下的拓荒者,在水土保持和群落演替甚至荒漠地区生态环境的改善中发挥着不可替代的作用。通过考察贵阳喀斯特公园南石林不同石生藓类的生物量、饱和吸水率及蒸发速率,探求藓类植物在石漠化地区的水土保持能力。选取贵阳喀斯特公园南石林优势藓类植物,与结皮土壤分离,烘干后测其生物量。将藓类植物充分吸水后测饱和吸水量,并分别在20、40、60、90 min,2、3、4、8、12、24、28、32、36、40 h后测量其蒸腾速率。结果显示,不同藓类持水保水差异显著(P<0.05),生物量最小的是狭叶湿地藓(Hyophila stenophylla),为(6.920.75)g·m~(-2),最大的是纤枝短月藓(Brachymenium exile),为(62.642.45)g·m~(-2);饱和吸水量最低的是狭叶湿地藓,为(123.611.21)g·m~(-2),最高的是纤枝短月藓,为(689.896.89)g·m~(-2);饱和吸水率最低的是多枝短月藓(Brachymenium leptophyllum),为(524.983.65)%,最高的是穗枝赤齿藓(Erythrodontium julaceum),为(1 633.307.48)%。在0~ 30 h内藓类植物蒸发速率呈下降趋势,到30 h左右蒸发速率逐渐趋近于0 g·kg~(-1)· h~(-1),黑扭口藓(Barbula grescens)水分更容易丧失,羽枝青藓(Brachythecium plumosum)水分较其他藓类不易丧失。因此,优选云南赤枝藓(Braunia delavayi)和纤枝短月藓为适用于石漠化修复的藓类植物。
英文摘要	Bryophytes arepioneerplants in harsh environments,playing an irreplaceable role in soil and water conservation and community succession. And bryophytes are also able to improve the ecological environment of deserts. To examine the soil and water conservation ability of mosses in rocky desertified areas,biomasses,saturated water absorption rate and evaporation rate of various mosses in the karst area were measured. And mosses dominant in the Guiyang Karst Park were separated from the crust soil and oven dried for measurement of biomass. Saturated water absorption of the mosses were measured after the mosses got fully saturated with water. And evaporation rates of the mosses were measured at 20, 40,60,90 min and 2,3,4,8,12,24,28,32,36 and 40 h. Results show that Hyophila stenophylla was the lowest in biomass [( 6.92 0.75) g·m~(-2) ],while Brachymenium exile the highest [( 62.64 2.45) g·m~(-2) ]; Hyophila stenophylla was the lowest [( 123.611.21) g·m~(-2)]and Brachymenium exile the highest [( 689.896.89) g·m~(-2)]in saturated water absorptions too; and Brachymenium leptophyllum was the lowest [( 524.983.65) %]and Erythrodontium julaceum the highest [( 1 633.307.48) %]in saturated water absorption rate. Evaporation rates of all the mosses exhibited a gradually decreasing trend within the period of 0-30 h and approached to 0 g·kg~(-1)·h~(-1) at the end. Barbula grescens was more likely to lose water,whereas Brachythecium plumosum is less likely than all the others. In view of the great differences in water retention capacity between different species of mosses,Braunia delavayi and Brachymenium exile are held to be the most suitable pioneers in remedying rocky desertified lands.
中文关键词	石漠化 ; 藓类植物 ; 持水特性 ; 水土保持
英文关键词	stony desertification mosses water retention capacity soil and water conservation
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:6092334
来源机构	贵州师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236584
作者单位	1.贵州师范大学, 贵州省山地环境信息系统与生态环境保护重点实验室, 贵阳, 贵州 550001, 中国; 2.贵州师范大学生命科学学院, 贵阳, 贵州 550001, 中国
推荐引用方式 GB/T 7714	申家琛,张朝晖,王慧慧,等. 贵阳喀斯特公园南石林秋季藓类植物的持水特性[J]. 贵州师范大学,2017,33(10):907-912.
APA	申家琛,张朝晖,王慧慧,黄欢,&王智慧.(2017).贵阳喀斯特公园南石林秋季藓类植物的持水特性.生态与农村环境学报,33(10),907-912.
MLA	申家琛,et al."贵阳喀斯特公园南石林秋季藓类植物的持水特性".生态与农村环境学报 33.10(2017):907-912.