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| 垄沟集雨对干旱半干旱区土壤水热条件及老芒麦产草量的影响 | |
| 引用本文： | 何 峰,王 堃,李向林,徐 柱.垄沟集雨对干旱半干旱区土壤水热条件及老芒麦产草量的影响[J].农业工程学报,2012,28(12):122-126. |
| 作者姓名： | 何 峰 王 堃 李向林 徐 柱 |
| 作者单位： | 1. 中国农业大学动物科技学院,北京,100193;中国农业科学院北京畜牧兽医研究所,北京100193 2. 中国农业大学动物科技学院,北京,100193 3. 中国农业科学院北京畜牧兽医研究所,北京,100193 4. 中国农业科学院草原研究所,呼和浩特,010010 |
| 基金项目： | “十二五”国家科技计划（2011BAD17B01）；国家牧草产业技术体系（CARS-35-12）；中国农业科学院院所基金项目2012cj-9 |
| 摘 要： | 为探索和解决干旱半干旱区多年生牧草持续性生产问题,在坝上农牧交错区对垄沟集雨栽培措施下老芒麦草地的生长状况进行了研究。测定比较了垄沟集雨处理和平作对照的土壤水热条件,地下生物量分布以及不同阶段的产草量。结果表明:垄沟集雨使种植区土壤表层体积含水率幅度增加9.67%～26.94%,生长季土壤表层0～30cm贮水量提高13.38%～24.92%,土壤表层最低温度提高1.02～2.08℃;土壤水热条件的改善增加了表层0～10cm根系的分布,提高产草量98%～230%。垄宽60cm沟宽30cm的处理的产草量最高为5.34t/hm2,2a年平均产量为5.34和2.79t/hm2分别比对照1.62和1.18t/hm2提高了230%和136%。垄沟集雨措施对降雨量较少,分布不均匀的干旱半干旱区的人工草地种植具有明显的稳产增产作用。 |
| 关 键 词： | 土壤水分 温度 生物量 垄沟集雨 老芒麦 |
| 收稿时间： | 2011/12/20 0:00:00 |
| 修稿时间： | 2012/5/28 0:00:00 |
Effects of ridge and furrow rainfall harvesting system on soil hydrothermal condition and yields of Elymus sibiricus L. in arid and semiarid regions |
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| He Feng,Wang Kun,Li Xianglin and Xu Zhu.Effects of ridge and furrow rainfall harvesting system on soil hydrothermal condition and yields of Elymus sibiricus L. in arid and semiarid regions[J].Transactions of the Chinese Society of Agricultural Engineering,2012,28(12):122-126. | |
| Authors: | He Feng Wang Kun Li Xianglin and Xu Zhu |
| Institution: | 1. The College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; 2. Institute of Animal Science of Chinese Academy of Agricultural Sciences, Beijing 100193, China; 3. Grassland research institute of Chinese Academy of Agricultural Sciences, Hohhot 010010, China) |
| Abstract: | The study about the effects of ridge and furrow rainfall harvesting system (RFRH) on Elymus sibiricus yield was carried out in Bashang agro-pastoral region during 2009 to 2010 years. The aim was to maintain and increase perennial grassland yields. The soil hydrothermal conditions and roots biomass distribution and yield of E. sibiricus was measured. The results showed that RFRH system could improved soil hydrothermal condition, including increase of soil surface volumetric water content by 9.67%-26.94%, and the soil water storage of 30 cm depth by 13.38%-24.92%, and the soil surface daily minimum temperature, which improved soil surface roots biomass distribution, promoted yields increase by 98%-230%. Treatment of MR60 with 60cm-ridge and 30 cm-furrow had the highest yield 5.34 t/hm2. Compared with the control with the yield of 1.62 and 1.18 t/hm2 of the two year respectively, the average yield of MR60 with 5.34 and 2.79 t/hm2 of the two year increased by 230% and 136%, respectively. RFRH system could significantly increase and maintain E. sibiricus growth and yields under rainfall decreasing and erratic distribution conditions. |
| Keywords: | soil moisture temperature biomass ridge and furrow rainfall harvesting system Elymus sibiricus |
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