摘要
为探讨不同立地条件及不同材料覆盖对油茶林地水热状况的影响,本研究以白膜、黑膜、谷壳、木屑和遮阳网为覆盖材料,分别在油茶林地不同立地条件区域(红壤区、未垦区和砂砾区)进行覆盖试验,旨在为油茶保水抗旱栽培提供依据。结果表明:连续干旱5 d,红壤区覆盖遮阳网地表温度较低,未垦区对照处理地表温度较低,砂砾区覆盖木屑地表温度较低,各种立地类型覆盖木屑25 cm处土壤温度最低,红壤区覆盖黑膜25 cm处土壤含水率较高,未垦区覆盖木屑25 cm处土壤含水率较高,砂砾区覆盖木屑土壤含水率相对较高;连续干旱8 d,红壤区对照处理地表温度相对较低,未垦区覆盖木屑处理地表温度较低,砂砾区覆盖木屑地表温度较低;所有立地覆盖木屑25 cm处土壤温度最低,红壤区覆盖黑膜土壤含水率较高,未垦区覆盖谷壳土壤含水率较高,砂砾区覆盖黑膜土壤含水率相对较高;连续干旱11 d,红壤区覆盖谷壳处理地表温度相对较低,未垦区覆盖木屑地表温度相对较低,砂砾区覆盖木屑地表温度较低,所有立地覆盖木屑25 cm处土壤温度最低,红壤区覆盖木屑土壤含水率较高,未垦区覆盖遮阳网土壤含水率较高,砂砾区覆盖黑膜土壤含水率相对较高。
In order to understand the influence of different covering materials on soil moisture and temperature in oil-tea camellia forest under different site conditions,white film,black film,chaff,sawdust and sunshading net were used as covering materials and the soil temperature and moisture were determined.The results showed that:when the weather was dry for 5 days,the surface temperature was lower in the red soil polt covered withe sun shading net,the gravel polt covered with sawdust and the unreclaimed plot;the soil temperature at the position of 25 cm was the lowest in all the site covered with sawdust,the soil moisture content at the position of 25 cm was higher in red soil plot covered with black film,unreclaimed and gravel polts covered with sawdust;when the weather way dry for 8 days,the surface temperature was lower in the red soil control plot,the unreclaimed plot and the gravel plot covered with sawdust;the soil temperatureat the position of 25 cm was the lowest in all the sites covered with sawdust;the soil moisture content was higher in the red soil plot and gravel plot covered with black film and in the unreclaimed plot covered with chaff;when the weather was dry for11 days,the surface temperature was lower in the red soil plot covered wiht chaff,the gravel plot and unreclaimated plots covered with sawdust;the soil temperature at the position of 25 cm was the lowest in all the sites covered with sawdust;the soil moisture content was higher in the red soil plot covered with sawdust,the unreclaimed plot covered with sunshading net and the gravel plot covered with black film.
作者
胡玉玲
张山
罗海秀
卢海燕
贺姣凤
HU Yu-ling;ZHANG Shan;LUO Hai-xiu;LU Hai-yan;HE Jiao-feng(Oil-tea Camellia College,Hunan Institute of Applied Technology University,Changde,Hunan 311400,China;Key Laboratory of Woody Grain or Oil Cultivation and Utilization,Hunan Institute of Applied Technology University,Changde,Hunan 311400,China;Hunan Tong Fei Agriculture and Forestry Science and Technology Development co.,LTD,Changde,Hunan 311400,China)
出处
《江西农业大学学报》
CAS
CSCD
北大核心
2018年第2期271-281,共11页
Acta Agriculturae Universitatis Jiangxiensis
基金
湖南省教育厅优秀青年项目(16B187)
常德市科技局重大专项项目(2015ZD16
2013ZX23)~~
关键词
油茶
覆盖
不同材料
土壤水分
土壤温度
Camellia oleifera Abel.
coverage
different materials
soil moisture
soil temperature
