从盐碱荒滩到塞外粮仓：河套灌区探寻耕地保护“密码”

Core Viewpoint - The article highlights the transformation and modernization of the Hetao Irrigation District in Inner Mongolia, focusing on water management, salinization issues, and agricultural innovations to enhance productivity and sustainability [1][2][3][4] Group 1: Water Management Innovations - The Hetao Irrigation District has implemented a real-time monitoring system with 1,284 communication stations and 2,141 data monitoring points, allowing for 24-hour dynamic monitoring of water levels and flow [2] - Water usage is now charged based on actual consumption rather than a flat rate per acre, leading to an estimated annual water savings of approximately 160 cubic meters per acre [2] Group 2: Agricultural Practices and Salinization Issues - Nearly half of the 13.7 million acres of arable land in Bayannur City is affected by salinization, making it the region with the largest area of saline-alkali land in Inner Mongolia [1] - The district has shifted from traditional irrigation methods to a more efficient "water-saving" approach, integrating high-standard farmland construction with saline-alkali land utilization and technological innovation [1][3] Group 3: Saline-Alkali Land Management - The management strategy for saline-alkali land has evolved to include ecological conservation areas, allowing for the natural movement of salts and improving land quality [3] - After comprehensive management, the quality of saline-alkali land has improved, with salt content reduced by 0.2-0.3 percentage points and crop yields increased by over 15% [3] Group 4: Future Development Plans - The future strategy for the Hetao Irrigation District emphasizes water conservation, balanced spatial development, and systematic governance, with a target of improving 302,000 acres of saline-alkali land this year [4]