彰武县蓄水保墒造林技术研究  

Afforestation Technology of Storing Water and Retaining Soil Moisture in Zhangwu County

作　　者：赵淑梅 

机构地区：[1]辽宁省彰武县林业种苗管理站,辽宁阜新123000

出　　处：《防护林科技》2016年第5期7-10,24,共5页Protection Forest Science and Technology

摘　　要：水分是影响林木生长的主要因子。通过表面覆盖薄膜、砂石、秸秆等方法进行保水试验,通过添加锯末子、农家厩肥、生物炭等方法进行保墒试验,分别测定各处理的土壤含水率、林木成活率、林木高生长量、土壤理化性质等指标。结果表明:在提高土壤含水率上,8种处理方法由多到少依次为添加生物炭>薄膜覆盖>添加锯末子>秸秆覆盖>砂石覆盖>添加农家厩肥>对照;在提高林木成活率上,8种处理方法由多到少依次为添加生物炭>添加农家厩肥>薄膜覆盖>添加锯末子>秸秆覆盖>砂石覆盖>对照;在林木年高生长量上,8种处理方法从高到低依次为添加生物炭>添加农家厩肥>薄膜覆盖>添加锯末子>砂石覆盖>秸秆覆盖>对照,土壤理化性质方面以添加生物炭为最佳。因此,干旱地区土壤添加生物炭在土壤蓄水保墒、促进养分吸收利用、改良土壤结构方面效果最佳,对干旱地区的蓄水保墒造林起一定的指导作用。Water is the main factor affecting tree growth. Water retaining experiment were conducted by using differ ent mulching methods （thin film, straw mulch and gravel and sand mulch）. Indices of soil water content, survival rate of forest stand, tree height of forest trees physical chemical properties were respectively determined by adding sawdust child, farm manure and biochar. Result shows that： in terms of improving soil water content ,the descend ing order of eight kinds of treatment from more to less is adding biochar〉 film mulching〉 add sawdust〉 straw mulching〉 gravel and sand mulch〉 add farm manure〉 CK;in terms of improving the survival rate of trees, the de scending order of eight kinds of treatment from more to less is adding biochar〉 adding farm manure〉 film mulc hing〉 adding sawdust〉 straw mulching〉 gravel and sand mulching〉 CK; in terms of improving annual tree height growth of forest,the descending order of eight kinds of treatment from high to low is adding biochar〉 add farm manure〉 mulch〉 Add sawdust sub〉 mulch〉 straw mulching〉 CK,in terms of soil physicochemical char acteristics, adding biochar is the optimal. Accordingly, in terms of storing water and retaining soil moisture for soil , promoting nutrient absorption ＆ utilization,improving soil structure , adding biochar is the optimal.

关 键 词：蓄水保墒 表面覆盖 添加媒介物质 造林 

分 类 号：S725[农业科学—林木遗传育种]