| 大果榛子在毛乌素沙地的生长规律研究 |
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| 引用本文： | 王炳哲,毕如田,陈利根,荆耀栋.大果榛子在毛乌素沙地的生长规律研究[J].农学学报,2020,36(7):76-81. |
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| 作者姓名： | 王炳哲 毕如田 陈利根 荆耀栋 |
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| 作者单位： | 1.陕西省林业科学院,西安 710082;2.国家林业和草原局长柄扁桃工程技术研究中心,陕西榆林 719000;3.榆林学院生命科学学院,陕西榆林 719000;4.攀枝花市农林科学研究院,四川攀枝花 617061;5.榆林市樟子松种子园,陕西榆林 719000 |
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| 基金项目： | 国土资源部公益性行业项目“北方村庄压煤山丘区土地综合整治技术研究”(201411007)。 |
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| 摘 要： | 为筛选出适合毛乌素沙地栽培的榛子优良品种,从辽宁省章古台引进5个大果榛子品种（‘达维’、‘辽榛3号’、‘辽榛7号’、‘辽榛8号’和‘平欧15号’）,在原陕西省治沙研究所红石峡植物园和靖边县牛玉琴全国治沙基地2个试验地开展引种栽培试验及生长规律研究,并对其物候期、生长情况和结实情况等指标进行观测分析研究。结果表明：5个大果榛子品种在2个试验地均能正常生长发育,完成营养生长和生殖生长。但从树高和冠幅指标看,其中‘达维’和‘辽榛3号’显著优于‘辽榛7号’和‘辽榛8号’(P＜0.05);从新梢长度、新梢粗度和新梢数量指标看,‘达维’显著优于其他3个树种(P＜0.05),其次为‘辽榛3号’;从结实指标看,除‘平欧15号’性状较其他品种差,其余4个树种间无明显差异(P＞0.05);从结实日期看,‘达维’和‘辽榛3号’早于‘辽榛7号’和‘辽榛8号’,这4个引种品种均显著优于‘平欧15号’。综合生长指标和结实指标看,5个树种都可在榆林引种种植,但‘达维’和‘辽榛3号’更适宜在毛乌素沙地推广种植,‘平欧15号’生长表现最差,不适宜在毛乌素沙地推广栽培。
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| 关 键 词： | 大果榛子 毛乌素沙地 引种试验 适应性研究 生长规律 |
| 收稿时间： | 2019/9/17 0:00:00 |
| 修稿时间： | 2020/2/3 0:00:00 |
Soil Erosion in Loess Area of the Upstream of the Hutuo River: Spatial Characteristics Based on USLE Model |
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| Yang Tao,Shang Aijun,Shi Sheqiang,Lin Yuyang,Wang Haiying,Luo Zhumei,Wu Jinyan,Chao Zunqi.Soil Erosion in Loess Area of the Upstream of the Hutuo River: Spatial Characteristics Based on USLE Model[J].Journal of Agriculture,2020,36(7):76-81. |
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| Authors: | Yang Tao Shang Aijun Shi Sheqiang Lin Yuyang Wang Haiying Luo Zhumei Wu Jinyan Chao Zunqi |
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| Institution: | 1.Shaanxi Academy of Forestry, Xi’an 710082, Shaanxi, China;2.Technology Research Center of Amygdalus Pedunculata of State Forestry and Grassland Administration, Yulin 719000, Shaanxi, China;3.Life and Science College, Yulin University, Yulin 719000, Shaanxi, China;4.Academic of A＆F of Panzhihua, Panzhihua 617061, Sichuan, China;5.Yulin Seed Garden of Pinus sylvestris var. mongolica, Yulin 719000, Shaanxi, China |
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| Abstract: | The Hutuo River is one of the large tributaries of the Haihe River in Shanxi. Studying the soil erosion in the upstream of the Hutuo River is of great significance for establishing the ecological restoration system of Shanxi. Taking the upstream of the Hutuo River in Xinzhou as the study area, based on the remote sensing image data, data elevation model data, rainfall data and soil type data, we estimated the soil erosion modulus of the upstream of the Hutuo River combined with GIS, RS, the US Universal Soil Loss Equation (USLE). The results showed that: (1) in 2015, the average soil erosion modulus of the upstream of the Hutuo River was 2538.9 t/(km2·a), which was moderately erosive; the soil erosion types were mainly micro-erosion, extremely strong and severe erosion; (2) as the elevation rose, the higher the soil erosion intensity, the less the soil erosion area was, the elevation was positively correlated with the soil erosion intensity, and negatively correlated with the erosion area; severe erosion distributed in each elevation zone; the slightly erosion area was the largest in the 500,1000) elevation zone; (3) the soil erosion area of the study area was the largest in the 0- 5° zone; (4) the soil erosion distribution of pasture and grassland was the widest, followed by cultivated land> forest land>garden land>urban village and industrial and mining land>water area and water conservancy facilities land>other land. The conclusion can provide a scientific basis for the government to adopt suitable soil erosion treatment technical methods, formulate treatment layout and scheme, and determine treatment types and scale. |
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| Keywords: | Soil erosion GIS ULSE RS the Upstream of the Hutuo River |
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