The effect of carbon stocks in different Ginkgo agroforestry systems
In order to study the effects of carbon stock in Ginkgo agroforestry systems and agriculture systems,we established three Ginkgo agroforestry systems and three agriculture systems.They are GRP (Ginkgo-Rapeseed-Peanut),GWP (Ginkgo-Wheat-Peanut),GM (Ginkgo-Mulberry),RP (Rapeseed-Peanut),WP (Wheat-Peanut),and M (Mulberry).The result showed that significantly higher carbon stocks were obtained in Ginkgo agroforestry systems than agriculture systems.The highest trees and crops C stock was in GRP with 27.13 t·hm2,while GM had highest litter and soil C stock with 7.64,79.07 t·hm2,respectively.The total C stock in GM system was reach to 122.54 t·hm2 which was significantly higher than other systems.The total C stock from high to low were list as:GM ＞ GRP ＞GWP ＞ M ＞ RP ＞ WP.Soil C stock was the highest stock which contained 58.03-74.45％ to total C stock.In Ginkgo agroforestry systems,Ginkgo C stock contained 17.96-25.73％ C stock which higher than other stocks except soil C stock.In general,the carbon stocks in Ginkgo agroforestry systems were better than in agriculture systems,especially in GM system.
NETL
NSTL
万方数据
维普
