干旱区生态环境知识资源中心(Arid): 黄土高原半干旱区不同密度山地苹果园水分生产力模拟

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	黄土高原半干旱区不同密度山地苹果园水分生产力模拟
其他题名	Water productivity of apple orchards with different planting densities in semi-arid mountainous regions of Loess Plateau, Northwest China: A simulation study
	张丽娜 1; 李军 2; 范鹏 1; 曹裕 2; 郭正 1; 杨小利 3
来源期刊	应用生态学报
ISSN	1001-9332
出版年	2013
卷号	24 期号:10 页码:2878-2887
中文摘要	采用修订WinEPIC模型，模拟研究了陕西延安和甘肃静宁1965-2009年7种不同密度处理山地苹果园产量和深层土壤水分效应.结果表明：各密度处理4～45年生果园产量均呈现初期快速增加，达到最大值后又逐年波动性降低趋势；果园密度越高，初期产量增加越快，后期产量随降水量年际波动越剧烈.各密度处理果园遭受干旱胁迫规律基本一致，即生长前期无干旱胁迫，随种植年限延长干旱胁迫波动性加剧，生长后期干旱胁迫日数与年降水量波动趋势相反.生长初期，各密度处理果园0～15 m土层逐年土壤有效含水量均呈现波动性强烈降低趋势，延安和静宁分别在17～22年生和13～20年生之后土壤有效含水量维持在0～600 mm的较低水平.各密度处理果园0～15 m土层土壤湿度剖面分布特征相似：均经历了土壤湿度逐年降低和土壤干层逐年加厚的干燥化过程，土壤稳定干层深度可达12 m.基于0～15 m土壤有效水分含量和4～45年果园产量模拟结果确定，延安和静宁果园适宜种植密度分别为650～800和550～700株·hm~(-2).
英文摘要	By adopting the revised WinEPIC model, a simulation study was conducted to investigate the responses of the apple yield and deeper soil moisture content to 7 planting densities in the apple orchards in Yanan of Shaanxi and in Jingning of Gansu in 1965-2009. Under the 7 planting densities, the annual yields of the 4-45 years apple orchards increased rapidly at early growth stage, and then decreased with fluctuation after reached the maximum. The higher the planting density, the higher the annual yield was obtained at early growth stage, but the yield at late growth stage fluctuated dramatically with annual precipitation. The orchards with different planting densities had the similar soil water stress process, i.e., no water stress at early growth stage, and water stress occurred and fluctuated dramatically with increasing planting years. The days of water stress at late growth stage changed oppositely to annual precipitation. At early growth stage, the soil available moisture content in 0-15 m layer under the 7 planting densities all decreased rapidly with strong fluctuation, ranged in a low level of 0-600 mm after 17-22 years in Yanan and after 13-20 years in Jingning. The soil moisture content in 0-15 m layer changed similarly under different planting densities, i.e., decreased gradually with the deepening of soil desiccation, and the stable depth of drying layer could reach 12 m. Considering the apple yield and the soil available moisture content in 0-15 m layer, the reasonable planting density of apple orchard was 650-800 plants·hm~(-2) in Yanan and 550-700 plants·hm~(-2) in Jingning.
中文关键词	黄土高原 ; 半干旱区 ; 苹果园地 ; 密度 ; 水分生产力 ; WinEPIC模型
英文关键词	Loess Plateau semi--arid region apple orchard planting density water productivity WinEPIC model
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:4959355
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/2XILL650/230416
作者单位	1.西北农林科技大学林学院, 杨凌, 陕西 712100, 中国; 2.西北农林科技大学农学院, 杨凌, 陕西 712100, 中国; 3.平凉市气象局, 平凉, 甘肃 744000, 中国
推荐引用方式 GB/T 7714	张丽娜,李军,范鹏,等. 黄土高原半干旱区不同密度山地苹果园水分生产力模拟[J]. 西北农林科技大学,2013,24(10):2878-2887.
APA	张丽娜,李军,范鹏,曹裕,郭正,&杨小利.(2013).黄土高原半干旱区不同密度山地苹果园水分生产力模拟.应用生态学报,24(10),2878-2887.
MLA	张丽娜,et al."黄土高原半干旱区不同密度山地苹果园水分生产力模拟".应用生态学报 24.10(2013):2878-2887.