冀北坝上沙化土地沙棘人工林对水分的响应  

Response of Hippophae rhamnoides Plantation to Soil Moisture Heterogeneity in the Desertification Land of the North Hebei Highland

作　　者：张强 李玉灵[2] 刘春海 李晓刚 ZHANG Qiang(Hebei Yonglin Forestry Technical Service Co.Ltd,Hebei Shijiazhuang 050091)

机构地区：[1]河北永林林业技术服务有限公司,河北石家庄050091 [2]河北农业大学林学院,河北保定071001 [3]承德宇航人高山植物应用技术有限责任公司,河北承德067000

出　　处：《林业科技》2021年第6期17-19,共3页Forestry Science & Technology

基　　金：沙化土地特色经济林高效栽培及产业化技术研究与示范(2016YFC0500802-07)。

摘　　要：以坝上沙化土地的沙棘林为研究对象,通过设置样方,逐月测定荒坡和沙棘林的水分状况以及沙棘生长量,从而探明水分对沙棘生长的影响。结果表明:各月荒坡与沙棘林地的土壤水分均呈斑块状分布,且两地差异不大;土壤体积含水率随月份的增加呈先上升后下降的趋势,其中8月份水分条件最好,5月份水分条件最差。树高和地径的生长速度也呈斑块状分布,且与土壤水分关系密切,土壤体积含水率为40%时最适宜沙棘生长。The test takes H.rhamnoides plantation as the research object.By setting the quadrat,measure the moisture status of barren slopes and H.rhamnoides plantation and the growth of H.rhamnoides by month,understand the influence of water conditions on the growth of H.rhamnoides.The results showed that the soil moisture of barren slope and H.rhamnoides plantation are distributed in patches in each month,and there is no significant difference between the two places;The soil moisture content increases first and then decreases with the increase of the month,of which August is the best and May is the worst.The growth rate of H.rhamnoides tree height and base diameter are also distributed in patches and are closely related to soil water content.Thus,the 40% of water content is 40% is most suitable for H.rhamnoides growth.

关 键 词：冀北坝上 沙化土地 人工沙棘林 水分 

分 类 号：S728.4[农业科学—林木遗传育种] S793.6[农业科学—林学]