Abstract

The arid region of Rajasthan has been classified into unique agro-ecological sub-regions, zones, and sub-zones (indicated by their code number in this abstract) for which sustainable land use has been suggested based on the potentials and constraints. 2.1, 2.2 and 3.1 sub-zones need dune stabilization, silvopastural farming, and kharif cultivation in interdunes; khadin water harvesting system, as well as solar farming. 4.1 and 4.2 sub-zones need rainfed cropping under conserved moisture, agroforestry and limited irrigation, cultivation of low water requiring crops, such as mustard, cumin in rabi. In 4.3 sub-zone under conserved moisture and winter rainfall pulses and mustard are suggested. In 5.1 and 5.2 sub-zones kharif season crops and wheat, mustard, cumin, and condiments irrigated with brackish groundwater by adopting gypsum treatment are suggested. In the canal command area, the micro-irrigation system is doing well in the sandy plain and dune complex area, but in the Ned area irrigation needs to be restricted/avoided. In 5.3 and 5.4 sub-zones, rainfed irrigated crops and fruit cultivation is suggested. In 6.1 sub-zone dune stabilization is suggested; 6.2 and 6.3 sub-zones require erosion control and irrigation water management for the cultivation of cotton, paddy, groundnut, sugarcane, and kinnow.

摘要

拉贾斯坦邦的干旱地区已被划分为独特的农业生态分区、区域和分区（在本摘要中用它们的代码表示），根据潜力和限制条件，提出了可持续土地利用的建议。2.1、2.2 和 3.1 分区需要沙丘稳定、林牧耕作和沙丘间的kharif种植；khadin集水系统，以及太阳能农业。4.1 和 4.2 分区需要在保持水分、农林业和有限灌溉的情况下进行雨养种植，种植低需水作物，如芥菜、小茴香。建议在 4.3 分区保持水分和冬季降雨脉冲和芥菜。在 5.1 和 5.2 分区kharif建议用半咸水地下水灌溉时令作物和小麦、芥菜、小茴香和调味品，采用石膏处理。在运河指挥区，微灌系统在沙质平原和沙丘复合区表现良好，但在Ned地区需要限制/避免灌溉。在 5.3 和 5.4 分区，建议雨育灌溉作物和水果种植。建议在 6.1 分区沙丘稳定；6.2 和 6.3 分区要求对棉花、稻谷、花生、甘蔗和金牛的种植进行侵蚀控制和灌溉水管理。