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当前位置: 首页 > 文章 > 土壤活性有机碳与养分有效性及作物产量的关系 吉林农业大学学报 2003,25 (5) 67-71
Position: Home > Articles > Relationship between Active Soil Organic Carbon, Nutrient Bioavailability and Crop Yield Journal of Jilin Agricultural University 2003,25 (5) 67-71

土壤活性有机碳与养分有效性及作物产量的关系

作  者：
刘淑霞;刘景双;赵明东;王金达;于君宝;丛晓明
单  位：
中国科学院东北地理与农业生态研究所;山东滨州职业学院;吉林农业大学资源与环境学院
关键词：
土壤活性有机碳;碱解氮;速效磷;速效钾;养分有效性;作物产量
摘  要：
以吉林省德惠市的典型黑土为主要研究对象,分析了2000—2002年不同耕作施肥措施下土壤活性有机碳、速效养分和作物产量的变化规律及其相互关系;探讨了土壤活性有机碳在土壤肥力中的地位及与其他养分间的关系。结果表明:从2000年起土壤活性有机碳、土壤有效养分和作物产量均呈增加的趋势。土壤活性有机碳的不同类型对土壤养分的有效性贡献不同。易氧化有机碳与碱解氮之间呈极显著的正相关(r_(0.01)=0.403,n=48),而微生物量碳与速效磷间也呈正相关(r_(0.05)=0.312,n=16)。易氧化有机碳与土壤速效钾间呈显著的负相关(r_(0.05)=-0.537,n=48)。而微生物量碳与土壤速效钾间呈正相关(r_(0.05)=0.428,n=16)。作物产量与土壤易氧化有机碳呈显著的正相关,与土壤碱解氮、速效磷、速效钾的相关性不显著。
译  名：
Relationship between Active Soil Organic Carbon, Nutrient Bioavailability and Crop Yield
作  者：
LIU Shu-xia~(1,2), LIU Jing-shuang~2, ZHAO Ming-dong~3, WANG Jin-da~2, YU Jun-bao~2, CONG Xiao-ming~1 (1. College of Resources and Environmental Sciences, Jilin Agricultural University, Changchun, Jilin 130118, China; 2. Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun, Jilin 130021, China; 3. Shandong Binzhou Professional College, Binzhou, Shandong 256624, China)
关键词：
soil active organic carbon; available N; available P; available K; nutrient bioavailability; crop yield
摘  要：
Average crop yield, active soil organic carbon, soil available nutrient content and their relationship were analyzed from 2000 to 2002 in Dehui city of Jilin province. The study indicated that active soil organic carbon and soil available nutrient content both took on an increasing tendency from 2000 to 2002. The contribution of different types of active soil organic carbon to soil available nutrients was different. There existed an obvious positive relation between LOC and SAN ( r_(0.01) = 0.403, n = 48), a positive relation between MBOC and SAP( r_(0.05)= 0.312, n=16), and an obvious negative relation between LOC and SAK ( r_(0.05)=-0. 537, n = 48). But there existed an obvious positive relation between MBOC and SAK( r_(0.05)= 0.428, n=16)and an obvious positive relation between crop yield and LOC. There was no relationship between crop yield and SAN, SAP and SAK.

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