CAJ | 학술논문

以北京市平原地区造林工程中废弃砂石坑地类土壤造林地位研究对象，将园林废弃腐熟物、生物有机肥进行组合设计应用于平原造林工程中以对困难立地土壤进行改良。试验共分4种处理：对照（无任何处理）；处理1（园林废弃腐熟物）；处理2（生物有机肥）；处理3（园林废弃腐熟物＋生物有机肥）。测定了4种处理的土壤理化性质、土壤微生物群落数量、土壤酶活性、植物生理指标以及造林成活率及成本等。结果表明：处理3较其他3种处理表现出更好的改良土壤理化性质、促进植物生长及减少造林成本的效果。与对照相比，处理3的土壤孔隙状况及持水特性显著提高；土壤养分质量分数显著提高，土壤有机质和土壤全氮质量分数提高1倍以上；土壤微生物群落数量显著提高；土壤脲酶、过氧化氢酶等酶活性显著提高；银杏单叶含水量、相对含水量、叶绿素等生理指标质量分数显著提高，叶片全磷、全钾养分质量分数显著提高，丙二醛、可溶性糖、脯氨酸等抗旱指标质量分数显著降低，根系活力显著；土壤改良后造林成活率达到88．57％，每公顷降低造林成本28245元。
이북경시평원지구조림공정중폐기사석갱지류토양조임지위연구대상，장완림폐기부숙물、생물유궤비진행조합설계응용우평원조림공정중이대곤난입지토양진행개량。시험공분4충처리：대조（무임하처리）；처리1（완림폐기부숙물）；처리2（생물유궤비）；처리3（완림폐기부숙물＋생물유궤비）。측정료4충처리적토양이화성질、토양미생물군락수량、토양매활성、식물생리지표이급조림성활솔급성본등。결과표명：처리3교기타3충처리표현출경호적개량토양이화성질、촉진식물생장급감소조림성본적효과。여대조상비，처리3적토양공극상황급지수특성현저제고；토양양분질량분수현저제고，토양유궤질화토양전담질량분수제고1배이상；토양미생물군락수량현저제고；토양뇨매、과양화경매등매활성현저제고；은행단협함수량、상대함수량、협록소등생리지표질량분수현저제고，협편전린、전갑양분질량분수현저제고，병이철、가용성당、포안산등항한지표질량분수현저강저，근계활력현저；토양개량후조림성활솔체도88．57％，매공경강저조림성본28245원。
With the waste sand and gravel pits in Beijing Plain Planting sites afforestation , we put the garden waste humus and biological organic fertilizer in combination design and used them in the plain afforestation project for improving the difficult site.The test was divided into four treatments including Treatment 1 with nothing as a control , Treatment 2 with garden waste humus , Treatment 3 with biological organic fertilizer , and Treatment 4 with both garden waste humus and biological organic fertilizer .We measured the soil physical and chemical properties , the number of soil microbial communities , soil enzyme activity , plant physiological indexes , afforestation survival rate and cost calculation of four treatments .Treatment 3 showed better effect in improving soil physical and chemical properties , promoting plant growth and reducing the cost of af-forestation, compared with the other three treatments .Compared with control , Treatment 3 could significantly increase soil porosity and moisture characteristics .The soil nutrient content increased significantly , and soil organic matter and total ni-trogen content increased by 100%.The number of soil microbial communities significantly increased .The soil urease and the catalase increased significantly .The leaf water content , relative water content , chlorophyll content and other physiologi-cal index content , significantly increased .The P and K in leaf significantly increased , but the drought resistance index contents of MDA, soluble sugar and Pro significantly reduced , and the root activity increased significantly .The afforesta-tion survival rate increased to 88.57%, and the afforestation cost was reduced by 28245 yuan per hectare .