干旱区生态环境知识资源中心(Arid): 基于生态效益下城镇(郊)陡坡及人工立面不同坡度景观林评价-以干旱半干旱区为例

Arid

	基于生态效益下城镇(郊)陡坡及人工立面不同坡度景观林评价-以干旱半干旱区为例
其他题名	Ecological Benefit of Plantscape Forests in Different Degrees of Steep Slope and Artificial Facade in Arid and Semi-arid Areas
	杨阳 1; 高媛 1; 郝嘉伟 1; 王睿 1; 康海斌 1; 赵国康 2; 王得祥 1
来源期刊	西北林学院学报
ISSN	1001-7461
出版年	2019
卷号	34 期号:1 页码:242-246
中文摘要	通过对不同坡度景观林的叶面积指数及净光合速率和蒸腾速率等生理指标的测定,换算得到不同坡度景观林固碳释氧、吸热释水等生态效益指标。结果表明,若注重绿化覆盖度及三维绿量,则以叶面积指数为主导,在台地及0°~20°坡地选择侧柏(LAI∶0.648)为骨干树种;在20°~40°坡地选择山桃(LAI∶0.488)为骨干树种;在40°以上坡面,选择胶东卫矛(LAI∶0.743)和火棘(LAI∶0.589)为骨干树种。若注重生态效益,则以固碳释氧量为主导,在台地及0°~20°坡地选择侧柏(17.587、12.791 g·m~(-2)·d~(-1))为骨干树种;在20°~40°坡地选择山桃(18.662、13.572 g·m~(-2)·d~(-1))为骨干树种;在40°以上坡面,选择火棘(14.218、10.340 g·m~(-2)·d~(-1))为骨干树种。若注重城市或城镇热岛效应,则以吸热释氧量为主导,在台地及0°~20°坡地选择酸枣(1 149.524 kJ·m~(-2)·d~(-1),1 990.498 g·m~(-2)·d~(-1))为骨干树种;在20°~40°坡地选择山桃(929.407 kJ·m~(-2)·d~(-1),1 609.346 g·m~(-2)·d~(-1))为骨干树种;在40°以上坡面,选择火棘(1481.387 kJ·m~(-2)·d~(-1),2 565.145 g·m~(-2)·d~(-1))为骨干树种。针对不同生态需求选择不同景观林是完成干旱半干旱城镇(郊)陡坡及人工立面景观林配置的关键。
英文摘要	Nowadays,more and more scholars attach great importance to the study of steep slope/artificial fa?ade protection by plantscape forests occurring in township and suburbs,in which ecological benefit becomes a key issue in the evaluation of this kind of forests.In this study,some physiological indices of the trees planted in these slopes with different degrees were measured,such as leaf area index(LAI),net photosynthetic rate(Pn)and transpiration rate(Tr)were measured,which were then converted into the indices related to ecological benefits,including carbon fixation and oxygen release,endothermic and water releasing capacity.When focusing on vegetation coverage and living vegetation volume(LVV),the LAI index was the leading factor.The recommended tree species in different slope degrees were Platycladus orientalis(LAI∶0.648)for 0°-20° slope,Amygdalus davidiana(LAI∶0.488)for 20°-40° slope,Euonymus kiautschoicus(LAI∶0.743)and Pyracantha fortuneana(LAI∶0.589)for >40° slope.With the emphasis of ecological benefit,the carbon fixation and oxygen release were the primary factors.The recommended tree species were A.davidiana(with the carbon fixation capacity of 18.662 g·m~(-2)·d~(-1)and oxygen release capacity of 13.572 g·m~(-2)·d~(-1))for 20°-40° slope,E.kiautschoicus(14.218 g·m~(-2)·d~(-1),10.340 g·m~(-2)·d~(-1))for >40° slope.While concentrating on the urban heat island effect,dropping temperature and increasing humidity were the leading factors.The relative candidates of tree species were Ziziphus jujube(with endothermic capacity of 1 149.524 kJ·m~(-2)·d~(-1)and increasing humidity capacity of 1990.498 g·m~(-2)·d~(-1))for 0°-20 ° slope,A.davidiana(929.407 kJ·m~(-2)·d~(-1),1 609.346 g·m~(-2)·d~(-1))for 20°-40° slope,E.kiautschoicus(kJ·m~(-2)·d~(-1),2 565.145 g·m~(-2)·d~(-1))for >40° slope.The results indicated that selecting tree species for the protection of deep slopes in township and suburb should be based on different ecological demands.
中文关键词	干旱半干旱 ; 景观林 ; 叶面积指数 ; 固碳释氧 ; 吸热释水
英文关键词	semi-arid and arid area plantscape tree LAI carban sequestration and oxygenrelease temperature drop and humidity increase
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FORESTRY
WOS研究方向	Forestry
CSCD记录号	CSCD:6420510
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/239599
作者单位	1.西北农林科技大学林学院, 杨陵, 陕西 712100, 中国; 2.榆林市榆阳区林木种子站, 榆林, 陕西 719000, 中国
推荐引用方式 GB/T 7714	杨阳,高媛,郝嘉伟,等. 基于生态效益下城镇(郊)陡坡及人工立面不同坡度景观林评价-以干旱半干旱区为例[J]. 西北农林科技大学,2019,34(1):242-246.
APA	杨阳.,高媛.,郝嘉伟.,王睿.,康海斌.,...&王得祥.(2019).基于生态效益下城镇(郊)陡坡及人工立面不同坡度景观林评价-以干旱半干旱区为例.西北林学院学报,34(1),242-246.
MLA	杨阳,et al."基于生态效益下城镇(郊)陡坡及人工立面不同坡度景观林评价-以干旱半干旱区为例".西北林学院学报 34.1(2019):242-246.