内蒙古林业科技
內矇古林業科技
내몽고임업과기
INNER MONGOLIA FORESTRY SCIENCE AND TECHNOLOGY
2011年
3期
4-7
,共4页
刘永宏%于洋%金文德%蔡长岭
劉永宏%于洋%金文德%蔡長嶺
류영굉%우양%금문덕%채장령
瓦勒拉尼系统%开沟犁%孔隙度%毛管最大持水量
瓦勒拉尼繫統%開溝犛%孔隙度%毛管最大持水量
와륵랍니계통%개구리%공극도%모관최대지수량
Vallerani System%ditching plough%porosity%capillary maximum moisture capacity
通过意大利瓦勒拉尼整地系统(由火车型犁和海豚型犁2种犁型构成,其中火车型犁近似水平沟式整地,海豚型犁近似大鱼鳞坑式整地)与常规开沟犁整地效益的对比试验,结果显示:同期覆土层(0~20 cm)的土壤含水量以瓦勒拉尼系统2种整地方式最高,是常规开沟犁整地的1.28倍和1.11倍。火车型犁整地的土壤容重为1.05 g/cm3,常规开沟犁整地为1.08 g/cm3,火车型犁整地后的土壤容重最小。瓦勒拉尼系统的火车型犁整地后的土壤毛管最大持水量是56.12%,远高于未整地的48.44%和普通犁整地的52.12%,分别是后两者的1.16倍和1.08倍。火车型犁整地后文冠果的地径达1.00 cm,是普通犁整地后地径0.42 cm的2.38倍;树高为0.93 m,是普通犁整地后树高0.53 m的1.75倍;保存率由59.30%提高至91.43%,提高了32.13个百分点;海豚型犁整地文冠果4年保存率则提高了13.42个百分点。
通過意大利瓦勒拉尼整地繫統(由火車型犛和海豚型犛2種犛型構成,其中火車型犛近似水平溝式整地,海豚型犛近似大魚鱗坑式整地)與常規開溝犛整地效益的對比試驗,結果顯示:同期覆土層(0~20 cm)的土壤含水量以瓦勒拉尼繫統2種整地方式最高,是常規開溝犛整地的1.28倍和1.11倍。火車型犛整地的土壤容重為1.05 g/cm3,常規開溝犛整地為1.08 g/cm3,火車型犛整地後的土壤容重最小。瓦勒拉尼繫統的火車型犛整地後的土壤毛管最大持水量是56.12%,遠高于未整地的48.44%和普通犛整地的52.12%,分彆是後兩者的1.16倍和1.08倍。火車型犛整地後文冠果的地徑達1.00 cm,是普通犛整地後地徑0.42 cm的2.38倍;樹高為0.93 m,是普通犛整地後樹高0.53 m的1.75倍;保存率由59.30%提高至91.43%,提高瞭32.13箇百分點;海豚型犛整地文冠果4年保存率則提高瞭13.42箇百分點。
통과의대리와륵랍니정지계통(유화차형리화해돈형리2충리형구성,기중화차형리근사수평구식정지,해돈형리근사대어린갱식정지)여상규개구리정지효익적대비시험,결과현시:동기복토층(0~20 cm)적토양함수량이와륵랍니계통2충정지방식최고,시상규개구리정지적1.28배화1.11배。화차형리정지적토양용중위1.05 g/cm3,상규개구리정지위1.08 g/cm3,화차형리정지후적토양용중최소。와륵랍니계통적화차형리정지후적토양모관최대지수량시56.12%,원고우미정지적48.44%화보통리정지적52.12%,분별시후량자적1.16배화1.08배。화차형리정지후문관과적지경체1.00 cm,시보통리정지후지경0.42 cm적2.38배;수고위0.93 m,시보통리정지후수고0.53 m적1.75배;보존솔유59.30%제고지91.43%,제고료32.13개백분점;해돈형리정지문관과4년보존솔칙제고료13.42개백분점。
Through contrasting the effects of soil preparation between Italian Vallerani System ( Treno plough, Delft- no plough) and normal ditching plough, the results show: at the same casing layer, the soil moistures of two kinds of land preparation of Italian Vallerani system are the highest, with 1.28 times and 1.11 times of land preparation of the normal ditching plough. The soil bulk density of Treno plough is 1.05 g/cm3 , the one of normal ditching plough is 1.08 g/cm3. The capillary maximum moisture capacity of land preparation with Treno plough is 56. 12% , which is 1.16 times and 1.08 times of the one of non land preparation and the nornal ditching plough. The ground diameter of Xanthoceras sorbifolia after land preparation with Treno plough is 1.00 cm, which is 2. 38 times of the one of normal plough. The tree height of Xanthoceras sorbifolia is 0. 93 m, wihich is 1.75 times of the one of nor- mal plough. The preserving rate has been raised from 59.30% to 91.43%. The preserving rate of Xanthoceras sor- bifolia after land preparation with Delfino plough has been raised by 13.42 percent points.