Nội dung được dịch bởi AI, chỉ mang tính chất tham khảo
Tác động của phân bố kích thước hạt, hàm lượng carbon hữu cơ trong đất và các phức hợp nhôm hữu cơ trên hoạt tính phosphatase acid của đất rừng mùa nước nổi
Tóm tắt
Chúng tôi đã nghiên cứu hoạt tính phosphatase acid (APA) và mối quan hệ của nó với một số tính chất lý hóa của đất dọc theo gradient rừng mùa nước nổi. Mẫu đất được thu thập trong thời gian không ngập lụt tại ba khu vực chịu ảnh hưởng của các thời gian ngập khác nhau: khu vực ngập 8 tháng mỗi năm (MAX), khu vực ngập 5 tháng mỗi năm (MED) và khu vực ngập 2 tháng mỗi năm (MIN). Tại khu vực MAX, APA có giá trị thấp và có mối tương quan âm với phân đoạn đất mịn. Trong khu vực này, các khoáng chất đất sét có vẻ như giảm hoạt tính enzym. Tại khu vực MIN, phosphatase acid có hoạt tính tương đối cao hơn, có mối tương quan dương với hàm lượng carbon hữu cơ trong đất và với Al liên kết với chất hữu cơ. Giá trị cao nhất của APA được ghi nhận ở khu vực MED, và không tìm thấy mối tương quan nào giữa các yếu tố đất và hoạt tính enzym trong khu vực này. Tuy nhiên, kết quả của chúng tôi chỉ giới hạn ở một mốc thời gian thu thập mẫu đơn lẻ và do đó, không xem xét được sự động học theo mùa của phosphatase acid liên quan đến các yếu tố đất khác theo thời gian.
Từ khóa
#phosphatase acid #hàm lượng carbon hữu cơ trong đất #đất mùa nước nổi #tính chất lý hóa của đất #mối quan hệ giữa hoạt tính enzym và các yếu tố đấtTài liệu tham khảo
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