青藏高原草地载畜量数据（2000-2015）

畜牧业是青藏高原最主要的生产活动，长期以来以大尺度放牧为主，准确地预测草地载畜量可助于厘清草地放牧压力，为青藏高原草地资源的科学管理、合理利用及畜牧业可持续发展提供科学依据。草地载畜量是指在一定的草地面积和放牧时间内，能够使家畜良好生长及正常繁殖的放牧家畜头数（SHU/km2）。该数据集是基于“青藏高原农牧业生产活动状况数据集之天然草地面积数据”和“青藏高原农牧业生产活动状况数据集之牲畜数量”，参照《NY∕T 635-2015 天然草地合理载畜量的计算》等相关标准规范，同时基于牧户调查和部门座谈获取了不同地区每年的出栏率，综合计算得到。数据包含2000-2015年每5年间隔的青藏高原各地级市的草地载畜量数据，并将草地载畜量链接至青藏高原各地级市矢量分布数据，最终得到青藏高原各地级市的草地载畜量矢量shapefile数据，单位为“万羊单位/平方千米（万SHU/km2）”。

Animal husbandry is the primary production activity on the Qinghai-Tibet Plateau, which has long been dominated by large-scale grazing practices. Accurate prediction of grassland carrying capacity helps clarify the grazing pressure on grasslands, providing a scientific foundation for the scientific management, rational utilization of grassland resources on the Qinghai-Tibet Plateau, and the sustainable development of local animal husbandry. The grassland carrying capacity refers to the number of grazing livestock heads that enable good growth and normal reproduction of livestock within a specified grassland area and grazing period, with the unit of SHU/km². This dataset is compiled based on the "Natural Grassland Area Data" and "Livestock Stock Data" from the Qinghai-Tibet Plateau Agricultural and Animal Husbandry Production Activity Status Dataset, following relevant standards and specifications including *NY/T 635-2015 Calculation of Reasonable Carrying Capacity of Natural Grasslands*. Annual slaughter rates of different regions were collected through herder household surveys and departmental consultations, and the final dataset was comprehensively calculated using the aforementioned data and standards. The dataset includes grassland carrying capacity data for all prefecture-level cities on the Qinghai-Tibet Plateau at 5-year intervals from 2000 to 2015. By linking this grassland carrying capacity data to the vector distribution datasets of prefecture-level cities on the Qinghai-Tibet Plateau, the vector shapefile data of grassland carrying capacity for each prefecture-level city on the Qinghai-Tibet Plateau is finally obtained, with the unit of "ten thousand sheep units per square kilometer (ten thousand SHU/km²)".

搜集汇总

背景与挑战

背景概述

该数据集提供了2000-2015年青藏高原各地级市的草地载畜量数据，时间分辨率为5年，空间分辨率为地级市级别，数据格式包括Shapefile和Excel。数据集基于天然草地面积和牲畜数量数据计算得到，单位为'万羊单位/平方千米'，可用于评估草地放牧压力和资源管理。