Xây dựng bản đồ trực tuyến (WebGIS) về đất sản xuất nông nghiệp phục vụ quản lý và định hướng chuyển đổi cơ cấu cây trồng nâng cao hiệu quả sản xuất nông nghiệp ở huyện Như¬ Xuân, tỉnh Thanh Hóa=Building an online map (webgis) of agricultural soil to serve the management and orientation of crop restructuring to improve agricultural production efficiency in nhu xuan district, thanh hoa province

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Tác giả: Thị Huệ Nguyễn

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Nông nghiệp và Phát triển nông thôn, 2024

Mô tả vật lý: tr.23-32

Bộ sưu tập: Metadata

ID: 475920

Thêm vào giỏ

Nghiên cứu được thực hiện trên 15.944,36 ha diện tích đất sản xuất nông nghiệp thuộc huyện Như Xuân, tỉnh Thanh Hóa. Kết quả đánh giá đất đai đã xác định được 32 đơn vị đất đai (ĐVĐĐ) và 99 mã nông hóa trên 4 loại đất thuộc 2 nhóm đất chính là đất đỏ và đất đen, trong đó nhóm đất đỏ chiếm 98,97% tổng diện tích đưa vào đánh giá. Diện tích đất nông nghiệp có hàm lượng đạm tổng số và kali tổng số nghèo chiếm khoảng 60%, lân dễ tiêu và kali dễ tiêu đều nghèo, hàm lượng chất hữu cơ tổng số (OM) và dung tích hấp thu trao đổi (CEC) trong đất đều thấp, pH KCl trong đất từ chua vừa đến rất chua. Đã xác định được lượng phân bón khuyến cáo cho các cây trồng chính thuộc 2 nhóm: Cây hàng năm và cây ăn quả. Đề xuất được 6 loại cơ cấu cây trồng phù hợp với định hướng phát triển sản xuất nông nghiệp của huyện Như Xuân. Bộ cơ sở dữ liệu (CSDL) trực tuyến (WebGIS) mã nguồn mở về đất sản xuất nông nghiệp của huyện Như Xuân được xây dựng dựa trên các ứng dụng của các phần mềm hệ thống thông tin địa lý (Mapinfo, ArcGIS, QGIS) kết hợp với trang Web địa lý bao gồm: Bản đồ nông hóa
bản đồ thích hợp đất đai
bản đồ khuyến cáo bón phân cân đối
bản đồ nền (ranh giới huyện, ranh giới xã, giao thông, sông hồ, bình độ, độ cao…)
các CSDL dưới dạng thông tin (video, ảnh, tin tức, báo cáo, kỹ thuật canh tác, quy trình canh tác, bài báo và trang web liên kết có nội dung liên quan đến sản xuất nông nghiệp)
các CSDL dạng số liệu (số liệu phân tích mẫu nông hóa theo vị trí lấy mẫu, số liệu thống kê sản xuất trồng trọt và số liệu khí tượng. Bản đồ trực tuyến về đất sản xuất nông nghiệp rất dễ dàng khai thác, sử dụng và tìm kiếm thông tin, giúp cho công tác khuyến nông và các hộ nông dân thực hành nông nghiệp chính xác, hiệu quả.The research was conducted on 15,944.36 hectares of agricultural land in Nhu Xuan district, Thanh Hoa province. The results of land assessment have identified 32 land units and 99 agrochemical codes on 4 types of soil belonging to 2 main soil groups: Ferralsols and Luvisols, of which the area is Ferralsols group is 98.97%. The agricultural land area with poor total nitrogen and total potassium content accounts for about 60%, poor digestible phosphorus and digestible potassium, total organic matter content (OM) and exchangeable absorption capacity (CEC) in the soil are low, pHKCl in soil ranges from moderately acidic to very acidic. The recommended amount of fertilizer for main crops in two groups: annual crops and fruit trees has been determined. Proposing 6 types of crop structures suitable to the agricultural production development orientation of Nhu Xuan district. The open source online database (WebGIS) on agricultural land of Nhu Xuan district is built based on applications of geographic information system software (Mapinfo, ArcGIS, QGIS) combined with the Web site includes: agrochemical map, land suitability map
map recommends balanced fertilization
base map (district boundaries, commune boundaries, traffic, rivers and lakes, elevation…)
databases in the form of information (videos, photos, news, reports, farming techniques, farming processes, articles and linked websites with content related to agricultural production)
data databases (agrochemical sample analysis data by sampling location, crop production statistics and meteorological data). Online maps (WebGIS) of agricultural land are easy to use and find information to help agricultural extension work and farmer households practice agriculture accurately and effectively.

1. Đọc trực tuyến

1. Đọc trực tuyến

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