【摘要】：旨在探討常綠闊葉林改為毛竹Phyllostachys edulis林和白茶Camellia sinensis園后土壤肥力質(zhì)量的演變趨勢(shì),評(píng)價(jià)毛竹林和白茶園土壤肥力質(zhì)量。在浙江省安吉縣分別采集并分析了10年生和40年生的毛竹林和白茶園土壤,并與40年生常綠闊葉林進(jìn)行比較。結(jié)果表明:4個(gè)土壤剖面的土壤有機(jī)碳、堿解氮、有效磷和速效鉀質(zhì)量分?jǐn)?shù)均隨土層深度的增加而顯著下降(P0.05)。常綠闊葉林改為白茶園和毛竹林10 a后,各個(gè)土層的土壤pH值均有不同程度升高;白茶園和毛竹林的0~10 cm和10~30 cm土層的有機(jī)碳質(zhì)量分?jǐn)?shù)均有不同程度的降低;40年生白茶園0~10 cm和10~30 cm土層堿解氮質(zhì)量分?jǐn)?shù)分別降低了26.1 mg·kg~(-1)和11.9 mg·kg~(-1),白茶園和毛竹林0~10 cm和10~30 cm土層的有效磷和速效鉀質(zhì)量分?jǐn)?shù),呈現(xiàn)隨種植年限增加先增后減的趨勢(shì)。土壤有機(jī)碳質(zhì)量分?jǐn)?shù)與土壤堿解氮質(zhì)量分?jǐn)?shù)和速效鉀質(zhì)量分?jǐn)?shù)之間的相關(guān)性均達(dá)到極顯著水平(P0.01),而與土壤有效磷質(zhì)量分?jǐn)?shù)沒(méi)有顯著相關(guān)性。根據(jù)林地和園地土壤肥力的分級(jí)標(biāo)準(zhǔn),毛竹林和白茶園土壤有機(jī)碳、堿解氮和速效鉀質(zhì)量分?jǐn)?shù)屬于缺乏水平,而速效磷質(zhì)量分?jǐn)?shù)屬于極度缺乏水平。從土壤肥力質(zhì)量的演變趨勢(shì)看來(lái),在毛竹林和白茶園的施肥管理中應(yīng)適當(dāng)增加有機(jī)肥和化肥的用量,以確保土壤肥力質(zhì)量的提高。
[Abstract]:The purpose of this paper was to investigate the evolution trend of soil fertility quality after changing evergreen broad-leaf forest into Phyllostachys pubescens Phyllostachys edulis forest and white tea Camellia sinensis garden, and to evaluate the soil fertility quality of Phyllostachys pubescens forest and white tea garden. The soil of 10-year-old and 40-year-old Phyllostachys pubescens and white tea garden were collected and analyzed in Anji County, Zhejiang Province, and compared with those of 40-year-old evergreen broad-leaf forest. The results showed that the contents of soil organic carbon, alkali hydrolyzed nitrogen, available phosphorus and available potassium in the four soil profiles decreased significantly with the increase of soil depth (P 0.05). After changing evergreen broad-leaf forest to white tea garden and Phyllostachys pubescens forest for 10 years, the soil pH value of each soil layer increased in different degrees, while the organic carbon content of 0 鈮，

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