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- W2393177887 abstract "The changes in soil water,soil organic C (SOC),and total soil N (TSN) in 0～300 cm depth was investigated under the alfalfa and winter wheat systems from 1984 to 1998.The results showed that:(1) soil water in the depth of 300 cm was relatively constant,and SOC and TSN in 0～20 cm depth was stable under wheat cropping with no fertilization from 1984 to 1998,soil water in 80～200 cm was gradually decreased,and SOC and TSN in 0～20 cm depth increased by 14%～60% and 12%～55%,respectively,under wheat cropping with NP or NPM from 1984 to 1998; (2) soil water in the depth of 300 cm decreased from 20% in 1984 to 10% in 1998 during conversion from winter wheat to alfalfa,and SOC and TSN in 0～20 cm depth increased by 23%～77% and 20%～68%,respectively,under alfalfa cropping from 1984 to 1998; (3) the changes in SOC and TSN in 20～300 cm depth was little from 1984 to 1998 under wheat or alfalfa cropping; (4) soil water use efficiency was the main factor that affect the inverse changes in soil water,SOC,and TSN." @default.
- W2393177887 created "2016-06-24" @default.
- W2393177887 creator A5062013169 @default.
- W2393177887 date "2003-01-01" @default.
- W2393177887 modified "2023-09-25" @default.
- W2393177887 title "Changes of soil C,N and soil water under conversion of cropland into grassland" @default.
- W2393177887 hasPublicationYear "2003" @default.
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