Arid
不同覆盖方式对旱地果园水热特征的影响
其他题名The effects of different mulching way on soil water thermal characteristics in pear orchard in the arid area
刘小勇1; 李红旭1; 李建明2; 王玮1; 赵明新1; 孙定虎3
来源期刊生态学报
ISSN1000-0933
出版年2014
卷号34期号:3页码:746-754
中文摘要采用垄膜覆盖(T1)、覆草(T2)和免耕无覆盖(T3)等方法,测定分析陇东旱地果园水热状况,结果表明,060 cm 土壤温度全年T1最高,萌芽开花期至果实膨大期T2温度最低,新梢停止生长期至落叶期T3温度最低。T1地表和20 cm 土壤最高温度出现在6月上旬, 40 cm 和60 cm 出现在8月上旬,表现为浅层(040 cm)最高温度出现提前,而T2和T3不同土层最高温度均在8月上旬。025 cm 不同处理土壤温度表现为晴天最高,雨天最低。除7月至8月土壤温差以T1最大外,其余时期均以 T3最大,全年T2温差最小。梨树生长前期(46月),T3土壤含水量最小,7月以后,T3最高。梨年生长周期中,T1土壤含水量变化最小,T3最大。不同土层T1土壤容重最小,孔隙度最大,T3土壤容重最大,孔隙度最小; 0120 cm 土层T1和T3土壤容重均表现为先升后降,T2为先降后稳定变化的特点。不同处理土壤营养元素含量随时间变化而降低,T3降幅最大。地面覆盖减缓了土壤养分的流失,同时增加了土壤铁、锌、硼等元素含量。
英文摘要By adopting the ridge film mulching(T1),wheatgrass mulching(T2)and zero tillage without cover(T3)method. To determine and analyze the soil temperature and moisture in a year changes in dry land pear orchard in eastern Gansu. The results show that the soil temperature of T1 is highest in 060cm soil horizon in a year. During bud sprouting and flowering to the growth stage of the fruit,the soil temperature of T2 is lowest, and T3 is lowest which new shoots stop growing period to leaf fall period.T1 treatment which The highest temperature of the surface and 20cm soil appears in early June,but 40 cm and 60cm appeared in early August. It was concluded that the highest temperature of the shallow layer(040 cm)of T1 appears in advance,while the highest temperature of different soil layer of T2 and T3 are in early August. In 025cm soil horizon,different treatment soil temperature performance for sunny is highest,lowest rainy day. The soil temperature difference of T1 from July to August is maximum,and T3 is maximum in the remaining time. In a year,the soil temperature difference of T2 is minimum. At growth prophase(46 months)of pear tree,the soil moisture content of T3 is minimum. After the July,the soil moisture content of T3 is highest. Annual growth cycle of pear tree,the soil moisture content change of T1 is minimum,and T3 is maximum. The soil bulk density of T1 with different soil horizon is minimum and its soil porosity is maximum. T3 is contrary. In 0120 cm soil horizon,the soil bulk density of T1 and T3 treatment are performing first rises then falls,but T2 treatment is the first drop then stable change. The soil nutrient element contents of different treatment with the time change is reduced,the range of T3 is biggest. Mulching slow down loss speed of the soil nutrients,and also increase the soil trace element contents of iron, zinc,boron,etc.
中文关键词垄膜覆盖 ; 土壤温湿度 ; 土壤养分 ; 旱地 ; 梨园
英文关键词ridge film mulching soil temperature and moisture soil nutrient contents dry land pear orchard
语种中文
国家中国
收录类别CSCD
WOS类目BIOLOGY
WOS研究方向Life Sciences & Biomedicine - Other Topics
CSCD记录号CSCD:5058778
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/231564
作者单位1.甘肃省农业科学院林果花卉研究所, 兰州, 甘肃 730070, 中国;
2.静宁县果业局, 静宁, 743400;
3.静宁县康源果农协会, 静宁, 743400
推荐引用方式
GB/T 7714
刘小勇,李红旭,李建明,等. 不同覆盖方式对旱地果园水热特征的影响[J],2014,34(3):746-754.
APA 刘小勇,李红旭,李建明,王玮,赵明新,&孙定虎.(2014).不同覆盖方式对旱地果园水热特征的影响.生态学报,34(3),746-754.
MLA 刘小勇,et al."不同覆盖方式对旱地果园水热特征的影响".生态学报 34.3(2014):746-754.
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