Chen Fayang,Zhu Daihong.The Evaluation of Land Resources on Wang Heqiu Small Watershed[J].Research of Soil and Water Conservation,1995,2(01):65-70.
王禾丘小流域土地资源评价
- Title:
- The Evaluation of Land Resources on Wang Heqiu Small Watershed
- Keywords:
- small watershed; land resources; evaluation
- 摘要:
- 土地资源评价是小流域综合治理规划中一项十分重要的前期工程；也是一项相当复杂的工作。小流域综合治理的根本目的在于最大限度地发挥土地资源的潜在生产能力，以创造更多效益。因此，评价土地生产力及其适宜性程度，成为土地资源评价的核心。而如何将这些指标数量化？又成为土地资源评价的棘手的问题。同时也是农、林、水、水土保持及其他有关行业科学工作者所探讨和追求的问题。本文以江西省东乡县王禾丘小流域为例，对构成土地生产能力的各个要素，例如，土层厚度、土壤质地、有机质含量、酸碱度及地块所处坡度等，给予适当的数字指数，并最终以综合指数表示。作者通过在该流域大量的野外工作，并结合多年来本地区生产水平实际资料分析，认为用土地资源综合指数指标来表达土地资源的潜在生产力是客观的。综合指数大于4的土地，其生产能力较高；综合指数小于3的土地，其生产能力较低下。
- Abstract:
- The evaluation of land resources is an important precedent engineering in the planning of comprehensive control of small watershed which is rather complicated. The aim of the comprehensive control is to bring the potential productivity of land resources into full play in order to create more benifit. Therefore, the evaluation of productivity and its adaptation of land resources becomes the center of evaluation of land resources. This paper gives Wang Heqiu small watershed (located in Dongxiang county, Jiangxi province) as an example to study the indexsystem of evaluation of land resources. Through a large amount of field work in the small watershed and the data analysis on the practical level of productivity in this region，we think that it is objective to use these comprehensive indices for presenting the potential productivity of land resources. If the comprehensive index is larger than 4, then the productivety is higner;If the index is less than 3, then the oroductivitv is lower.
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备注/Memo
收稿日期:1994-12-1