甘肃子午岭自然保护区区划研究

子午岭林区是黄土高原中部最大的天然次生林区，是黄河流域主要水源涵养和水土保持林区，对稳定黄河水质、水量和抑制具有“天下黄土第一原”的董志塬塬面切割具有十分重要的意义。子午岭自然保护区的建立，将使子午岭森林生态系统及动植物资源得到有效地保护、恢复和发展，提高自然生态系统的稳定，避免生态失调和物种退化，发挥更加强大的生态功能，为区域社会经济发展提供强大支撑。同时，把保护区建设成为黄土高原丘陵地区天然次生林重要科学研究基地和野生动植物资源物种基因库。 　　通过对甘肃省子午岭林区的地理位置、地质地貌、气候、土壤性质、河流水系以及动植物资源等自然环境的实地调查和分析，并结合该区域社会经济和森林资源状况，对子午岭林区50.20万hm2的地域进行了区划研究。研究结果表明： 　　1、甘肃子午岭林区野生动植物种类繁多，有木本植物47科、96属、222种 　　2、主要保护对象为黄土高原天然次生林生态系统 　　3、自然保护区范围的确立在子午岭林区的华池、合水、湘乐、正宁4个总场所辖林区核心地段，该区域保护对象相对集中，生物多样性的丰富程度高，可以满足对主要保护对象黄土高原天然次生林的保护和研究，保护区总面积242106hm2。 　　4、根据功能区划分的指导思想、原则和依据，将自然保护区区划为核心区、缓冲区和实验区3个功能区 　　5、子午岭自然保护区的特点：子午岭是我国黄土高原中部最大的天然次生林区，该生态系统在国内生物气候带中具有很强的代表性；子午岭林区天然次生群落年龄轻

The Ziwuling Forest Area is the largest natural secondary forest region in the central Loess Plateau, and a major water conservation and soil and water conservation forest region in the Yellow River Basin. It is of great significance for stabilizing the water quality and quantity of the Yellow River, and inhibiting the gully cutting of the Dongzhi Plateau, which is known as "the best loess plateau in the world". The establishment of the Ziwuling Nature Reserve will effectively protect, restore and develop the forest ecosystem and faunal and flora resources in the Ziwuling area, enhance the stability of natural ecosystems, avoid ecological imbalance and species degradation, exert more powerful ecological functions, and provide strong support for regional social-economic development. Meanwhile, the reserve will be built into an important scientific research base for natural secondary forests in the hilly regions of the Loess Plateau and a gene bank of wildlife and plant resources.

Through field surveys and analyses of the natural environment including the geographical location, geology and landform, climate, soil properties, river systems, and faunal and flora resources of the Ziwuling Forest Area in Gansu Province, combined with the regional social-economic and forest resource conditions, a regionalization study was conducted on the 502,000-hectare area of the Ziwuling Forest Area. The research results show that:

1. There are a wide variety of wildlife and plants in the Gansu Ziwuling Forest Area, including 222 species of woody plants belonging to 96 genera under 47 families.
2. The key protected objects are the natural secondary forest ecosystem of the Loess Plateau.
3. The scope of the nature reserve is located in the core forest regions under the jurisdiction of the four general stations of Huachi, Heshui, Xiangle and Zhengning in the Ziwuling Forest Area. The protected objects in this area are relatively concentrated, and the biodiversity is rich, which can meet the needs of protecting and researching the key protected object, the natural secondary forest ecosystem of the Loess Plateau. The total area of the nature reserve is 242,106 hm².
4. According to the guiding ideology, principles and basis of functional zone division, the nature reserve is divided into three functional zones: core zone, buffer zone and experimental zone.
5. Characteristics of the Ziwuling Nature Reserve: Ziwuling is the largest natural secondary forest region in the central Loess Plateau of China, and this ecosystem has strong representativeness in the domestic bioclimatic zones; the natural secondary communities in the Ziwuling Forest Area are relatively young in age.

搜集汇总

背景与挑战

背景概述

该数据集聚焦于甘肃子午岭自然保护区的区划研究，子午岭林区是黄土高原中部最大的天然次生林区，对黄河水源涵养和水土保持至关重要。研究通过实地调查自然环境和社会经济状况，对50.20万hm2区域进行区划，确定了保护区范围（总面积242106hm2）和三个功能区（核心区、缓冲区和实验区），旨在保护黄土高原天然次生林生态系统和丰富的生物多样性。