Rainfall Harvesting and Mulches Combination for Corn Production in the Subhumid Areas Prone to Drought of China
Rainfall Harvesting and Mulches Combination for Corn Production in the Subhumid Areas Prone to Drought of China
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DOI：
10.1111/j.1439-037x.2012.00508.x
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发表时间：
2012-08
影响因子：
3.5
通讯作者：
C. Xiaoli;W. Pute;Z. Xining;R. Xiaolong;Jia Zhikuan
中科院分区：
文献类型：
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作者：
C. Xiaoli;W. Pute;Z. Xining;R. Xiaolong;Jia Zhikuan
通过田间试验，研究了中国半湿润旱区不同覆膜材料，即0.08 mm厚地膜(T1)、10 cm厚玉米秸秆(T2)、8%生物降解膜(T3)、液膜(T4)、裸沟(T5)和常规平地(CF)的集雨效果。0~100 cm土层T1-T5样地在各处理间差异显著(P<0.05)。T1-T4小区比T5小区产量高209-1107 kg ha−1。同时，几乎所有处理的WUE都在2 kg m−3以上。不同覆盖处理WUE增加的顺序为：T3>；T1>；T2>；T4。在环境和经济可行性的情况下，PRFRH系统与可生物降解的地膜和秸秆覆盖相结合将是在旱地耕作系统中提高作物可持续性的一个很有潜力的选择，可以在许多没有灌溉能力的地区采用。
A field study was conducted to determine the effect of a combination of the plastic-covered ridge and furrow rainwater harvesting (PRFRH) with different mulching materials, namely, 0.08-mm-thick plastic film (T1), 10-cm-thick corn straw (T2), 8 % biodegradable film (T3), liquid film (T4), bare furrow (T5) and conventional flat (CF), on corn production, soil water storage and water use efficiency (WUE) in the subhumid areas prone to drought of China (SAPDC). The T1–T5 plots at 0–100 cm depth had higher (P 0.05) among treatments. The T1–T4 plots produced 209–1 107 kg ha−1 more grain yields than the T5 plots. Meanwhile, almost all treatments had WUE over 2 kg m−3. The order of WUE increase among different mulch treatments was as follows: T3 > T1 > T2 > T4. In the case of environmental and economic feasibility, a combination of the PRFRH system with biodegradable film and straw mulches would be an option with high potential to increase crop sustainability in dry land farming systems and can be adopted in many areas without irrigation capability.